Investments, Debt and Equity Securities [Abstract] Summary of Amortized Cost and Fair Value of Available-for-sale and Held-to-maturity Securities Available-for-sale Securities [Table Text Block] Amortized Cost and Fair Value of Debt Securities by Contractual Maturity Investments Classified by Contractual Maturity Date [Table Text Block] Classification of Investments According to Term of Unrealized Losses of Less than Twelve Months or Twelve Months or Longer Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Table Text Block] Income Tax Disclosure [Abstract] Income Tax Contingency [Table] Income Tax Contingency [Table] Income Tax Authority [Axis] Income Tax Authority [Axis] Income Tax Authority [Domain] Income Tax Authority [Domain] Income Tax Authority, Name [Axis] Income Tax Authority, Name [Axis] Income Tax Authority, Name [Domain] Income Tax Authority, Name [Domain] Tax Period [Axis] Tax Period [Axis] Tax Period [Domain] Tax Period [Domain] Income Tax Contingency [Line Items] Income Tax Contingency [Line Items] Unrecognized tax benefits Unrecognized Tax Benefits Interest and penalties Income Tax Examination, Penalties and Interest Expense Effective income tax rate (as percent) Effective Income Tax Rate Reconciliation, Percent Federal and State income tax statutory rate (as percent) Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent Excess tax benefit Effective Income Tax Rate Reconciliation, Tax Expense (Benefit), Share-based Payment Arrangement, Amount Income Taxes Income Tax Disclosure [Text Block] Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Instruments Derivative Instruments and Hedging Activities Disclosure [Text Block] Receivables [Abstract] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Financial Instrument Performance Status [Axis] Financial Instrument Performance Status [Axis] Financial Instrument Performance Status [Domain] Financial Instrument Performance Status [Domain] Receivable Type [Axis] Receivable Type [Axis] Receivable [Domain] Receivable [Domain] Troubled Debt Restructurings Troubled Debt Restructurings [Member] Voluntary or miscellaneous disclosures regarding a troubled debt restructuring. Accounts, Notes, Loans and Financing Receivable [Line Items] Accounts, Notes, Loans and Financing Receivable [Line Items] Total Allowance for Loan Losses Loans and Leases Receivable, Allowance Troubled debt restructurings performing as of restructure date Financing Receivable, Modifications, Accruing As Of Restructure Date Amount of investment related to financing receivables modified by troubled debt restructurings which were performing and accruing interest as of restructure date. Derivative [Table] Derivative [Table] Hedging Relationship [Axis] Hedging Relationship [Axis] Hedging Relationship [Domain] Hedging Relationship [Domain] Cash flow hedge Cash Flow Hedging [Member] Hedging Designation [Axis] Hedging Designation [Axis] Hedging Designation [Domain] Hedging Designation [Domain] Not Designated as Hedging Instrument Not Designated as Hedging Instrument [Member] Derivative Instrument [Axis] Derivative Instrument [Axis] Derivative Contract [Domain] Derivative Contract [Domain] Assets Pay fixed and receive variable swaps [Member] Forward based contracts in which entity pays periodic payments on fixed rate of interest and receives on variable rate of interest. Liabilities Pay variable and receive fixed swaps [Member] Forward based contracts in which entity pays periodic payments on variable rate of interest and receives on fixed rate of interest. Derivative [Line Items] Derivative [Line Items] Description of Location of Interest Rate Derivatives on Balance Sheet Description of Location of Interest Rate Derivatives on Balance Sheet Description of Location of Gain (Loss) on Interest Rate Derivative on Income Statement Description of Location of Gain (Loss) on Interest Rate Derivative on Income Statement Derivative, Gain (Loss) on Derivative, Net Derivative, Gain (Loss) on Derivative, Net Notional Amount Derivative, Notional Amount Estimated Fair Value Interest Rate Derivatives, at Fair Value, Net Schedule of Available-for-sale Securities [Table] Schedule of Available-for-sale Securities [Table] Financial Instrument [Axis] Financial Instrument [Axis] Financial Instruments [Domain] Financial Instruments [Domain] U.S. Treasury securities US Treasury Securities [Member] U.S. government agency securities US Government Agencies Debt Securities [Member] Mortgage-backed securities Collateralized Mortgage Backed Securities [Member] State and municipal securities US States and Political Subdivisions Debt Securities [Member] Asset-backed securities Asset-backed Securities [Member] Corporate notes and other Corporate Debt Securities [Member] State and municipal securities US States And Political Subdivision [Member] Bonds or similar securities issued by state, city, or local US governments or the agencies operated by state, city, or local governments. Debt securities issued by state governments may include bond issuances of US state authorities including, for example, but not limited to, housing authorities, dormitory authorities, and general obligations while debt securities issued by political subdivisions of US states would include, for example, debt issuances by county, borough, city, or municipal governments. Debt Securities, Available-for-sale [Line Items] Debt Securities, Available-for-sale [Line Items] Available-for-sale securities, fair value to amortized cost basis [Abstract] Debt Securities, Available-for-sale, Fair Value to Amortized Cost [Abstract] Securities available-for-sale [Abstract] Debt Securities, Available-for-sale [Abstract] Amortized Cost Available-for-sale Securities, Amortized Cost Basis Gross Unrealized Gains Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax Gross Unrealized Losses Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax Securities available-for-sale, at fair value Available-for-sale Securities Available-for-sale, Amortized Cost [Abstract] Debt Securities, Available-for-sale, Amortized Cost, Fiscal Year Maturity [Abstract] Due in one year or less Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, within One Year, Amortized Cost Due in one year to five years Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after One Through Five Years, Amortized Cost Due in five years to ten years Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Amortized Cost Due after ten years Debt Securities, Available-for-sale, Allocated and Single Maturity Date, Maturity, after 10 Years, Amortized Cost Mortgage-backed securities Debt Securities, Available-for-sale, Maturity, without Single Maturity Date, Amortized Cost Asset-backed securities Available For Sale Securities Debt Maturities Assets Backed Securities Amortized Cost Represents amount of available-for-sale debt securities at cost, net of adjustment of asset-backed securities. Adjustments include, but are not limited to, accretion, amortization, collection of cash, previous other-than-temporary impairments (OTTI) recognized in earnings (less any cumulative-effect adjustments, as defined) and fair value hedge accounting adjustments. Amortized Cost Debt Securities, Available-for-sale, Amortized Cost Available-for-sale, Fair Value [Abstract] Debt Securities, Available-for-sale, Fair Value, Fiscal Year Maturity [Abstract] Due in one year or less Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, within One Year, Fair Value Due in one year to five years Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after One Through Five Years, Fair Value Due in five years to ten years Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Fair Value Due after ten years Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after 10 Years, Fair Value Mortgage-backed securities Debt Securities, Available-for-sale, Maturity, without Single Maturity Date, Fair Value Asset-backed securities Available For Sale Securities Debt Maturities Asset Backed Securities Fair Value Represents amount of available-for-sale debt securities at fair value of asset-backed securities. Securities available-for-sale, at fair value Debt Securities, Held-to-maturity [Table] Debt Securities, Held-to-maturity [Table] Schedule of Held-to-maturity Securities [Line Items] Schedule of Held-to-maturity Securities [Line Items] Available-for-sale securities transferred to Held-to-Maturity Available-for-sale securities transferred to Held-to-Maturity The amount of available-for-sale securities transferred to the held-to-maturity portfolio during the period, a non-cash item. Net unrealized after tax loss Debt Securities, Unrealized Gain (Loss) Securities held-to-maturity [Abstract] Debt Securities, Held-to-maturity, Fair Value to Amortized Cost [Abstract] Amortized Cost Debt Securities, Held-to-maturity Gross Unrealized Gains Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain Gross Unrealized Losses Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss Securities held-to-maturity, fair value Debt Securities, Held-to-maturity, Fair Value Held-to-maturity, Amortized Cost [Abstract] Debt Securities, Held-to-maturity, Maturity, Amortized Cost, Net [Abstract] Due in one year or less Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, within One Year, Amortized Cost Due in one year to five years Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, after One Through Five Years, Amortized Cost Due in five years to ten years Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Amortized Cost Due after ten years Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, after 10 Years, Amortized Cost Mortgage-backed securities Debt Securities, Held-to-maturity, Maturity, without Single Maturity Date, Amortized Cost Asset-backed securities Held To Maturity Securities Debt Maturities Asset Backed Securities Amortized Cost Represents amount of held to maturity debt securities at cost, net of adjustment of asset-backed securities. Adjustments include, but are not limited to, accretion, amortization, collection of cash, previous other-than-temporary impairments (OTTI) recognized in earnings (less any cumulative-effect adjustments, as defined) and fair value hedge accounting adjustments. Held-to-maturity, Fair Value [Abstract] Debt Securities, Held-to-maturity, Maturity, Fair Value [Abstract] Due in one year or less Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, within One Year, Fair Value Due in one year to five years Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, after One Through Five Years, Fair Value Due in five years to ten years Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Fair Value Due after ten years Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, after 10 Years, Fair Value Mortgage-backed securities Debt Securities, Held-to-maturity, Maturity, without Single Maturity Date, Fair Value Asset-backed securities Held To Maturity Securities Debt Maturities Asset Backed Securities Fair Value Represents amount of held to maturity debt securities at fair value of asset-backed securities. Fair Value Cover page. Document Type Document Type Document Quarterly Report Document Quarterly Report Document Period End Date Document Period End Date Document Transition Report Document Transition Report Entity File Number Entity File Number Entity Registrant Name Entity Registrant Name Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Entity Tax Identification Number Entity Tax Identification Number Entity Address, Address Line One Entity Address, Address Line One Entity Address, City or Town Entity Address, City or Town Entity Address, State or Province Entity Address, State or Province Entity Address, Postal Zip Code Entity Address, Postal Zip Code City Area Code City Area Code Local Phone Number Local Phone Number Entity Current Reporting Status Entity Current Reporting Status Entity Interactive Data Current Entity Interactive Data Current Entity Filer Category Entity Filer Category Entity Small Business Entity Small Business Entity Emerging Growth Company Entity Emerging Growth Company Entity Shell Company Entity Shell Company Title of 12(b) Security Title of 12(b) Security Trading Symbol Trading Symbol Security Exchange Name Security Exchange Name Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Entity Central Index Key Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Amendment Flag Amendment Flag Leases [Abstract] Leases Lessee, Operating Leases [Text Block] Leases Lessee, Finance Leases [Text Block] Share-based Payment Arrangement [Abstract] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Award Type [Axis] Award Type [Axis] Award Type [Domain] Award Type [Domain] Restricted stock Restricted Stock [Member] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Number Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Unvested, beginning of period (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Shares awarded (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Restrictions lapsed and shares released to associates/directors (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Shares forfeited (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Unvested, end of period (in shares) Grant Date Weighted-Average Cost Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Unvested, beginning of period (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Unvested, end of period (in dollars per share) Shares forfeited due to failure to meet performance targets (in shares) Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period Due To Failure To Meet Performance Targets The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period due to failure to meet performance targets. Commitments and Contingencies Disclosure [Abstract] Commitments and Contingent Liabilities Commitments and Contingencies Disclosure [Text Block] Subordinated Debt [Abstract] Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Scenario [Axis] Scenario [Axis] Scenario [Domain] Scenario [Domain] Forecast Forecast [Member] Statistical Measurement [Axis] Statistical Measurement [Axis] Statistical Measurement [Domain] Statistical Measurement [Domain] Minimum Minimum [Member] Maximum Maximum [Member] Business Acquisition [Axis] Business Acquisition [Axis] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] BNC Bancorp BNC Bancorp [Member] BNC Bancorp [Member] Debt Instrument [Axis] Debt Instrument [Axis] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Pinnacle Statutory Trust I Trust Preferred Securities Subject to Mandatory Redemption One [Member] Preferred securities that embody an unconditional obligation requiring the issuer to redeem the securities by transferring the assets at a specified or determinable date (or dates) or upon an event that is certain to occur, that are issued by a consolidated trust to outside investors where the trust uses the proceeds of the issuance of those securities to purchase, from the financial institution that established the trust, an equivalent amount of junior subordinated debentures or other loans having stated maturities. Pinnacle Statutory Trust II Trust Preferred Securities Subject to Mandatory Redemption Two [Member] Preferred securities that embody an unconditional obligation requiring the issuer to redeem the securities by transferring the assets at a specified or determinable date (or dates) or upon an event that is certain to occur, that are issued by a consolidated trust to outside investors where the trust uses the proceeds of the issuance of those securities to purchase, from the financial institution that established the trust, an equivalent amount of junior subordinated debentures or other loans having stated maturities. Pinnacle Statutory Trust III Trust Preferred Securities Subject to Mandatory Redemption Three [Member] Preferred securities that embody an unconditional obligation requiring the issuer to redeem the securities by transferring the assets at a specified or determinable date (or dates) or upon an event that is certain to occur, that are issued by a consolidated trust to outside investors where the trust uses the proceeds of the issuance of those securities to purchase, from the financial institution that established the trust, an equivalent amount of junior subordinated debentures or other loans having stated maturities. Pinnacle Statutory Trust IV Trust Preferred Securities Subject to Mandatory Redemption Four [Member] Preferred securities that embody an unconditional obligation requiring the issuer to redeem the securities by transferring the assets at a specified or determinable date (or dates) or upon an event that is certain to occur, that are issued by a consolidated trust to outside investors where the trust uses the proceeds of the issuance of those securities to purchase, from the financial institution that established the trust, an equivalent amount of junior subordinated debentures or other loans having stated maturities. BNC Capital Trust I Trust Preferred Securities Subject to Mandatory Redemption Five [Member] Trust Preferred Securities Subject to Mandatory Redemption Five [Member] BNC Capital Trust II Trust Preferred Securities Subject to Mandatory Redemption Six [Member] Trust Preferred Securities Subject to Mandatory Redemption Six [Member] BNC Capital Trust III Trust Preferred Securities Subject to Mandatory Redemption Seven [Member] Trust Preferred Securities Subject to Mandatory Redemption Seven [Member] BNC Capital Trust IV Trust Preferred Securities Subject to Mandatory Redemption Eight [Member] Trust Preferred Securities Subject to Mandatory Redemption Eight [Member] Valley Financial Trust I Trust Preferred Securities Subject to Mandatory Redemption Nine [Member] Trust Preferred Securities Subject to Mandatory Redemption Nine [Member] Valley Financial Trust II Trust Preferred Securities Subject to Mandatory Redemption Ten [Member] Trust Preferred Securities Subject to Mandatory Redemption Ten [Member] Valley Financial Trust III Trust Preferred Securities Subject to Mandatory Redemption Eleven [Member] Trust Preferred Securities Subject to Mandatory Redemption Eleven [Member] Southcoast Capital Trust III Trust Preferred Securities Subject to Mandatory Redemption Twelve [Member] Trust Preferred Securities Subject to Mandatory Redemption Twelve [Member] Pinnacle Bank Subordinated Notes (2015) Pinnacle Bank Notes Established On July302015 [Member] Refers to the Pinnacle Bank notes issued. Pinnacle Bank Subordinated Notes Pinnacle Bank Notes Established On March102016 [Member] Refers to the Pinnacle Bank notes issued. Avenue Subordinated Notes Avenue Subordinated Notes [Member] Refers to the avenue subordinated notes issued. Pinnacle Financial Subordinated Notes Pinnacle Financial Notes [Member] Refers to the Pinnacle Financial notes issued. Pinnacle Financial Notes 2019 Pinnacle Financial Notes 2019 [Member] Pinnacle Financial Notes 2019 [Member] Subordinated Debt Due 2023 Subordinated Debt Due 2023 [Member] Subordinated Debt Due 2023 [Member] Pinnacle Bank Subordinated Notes Pinnacle Bank Subordinated Notes [Member] Pinnacle Bank Subordinated Notes [Member] BNC Subordinated Notes BNC Subordinated Notes [Member] BNC Subordinated Notes [Member] Credit Facility [Axis] Credit Facility [Axis] Credit Facility [Domain] Credit Facility [Domain] Revolving credit facility Revolving Credit Facility [Member] Debt Instrument [Line Items] Debt Instrument [Line Items] Number of wholly owned subsidiaries Number of wholly owned subsidiaries Number of wholly owned subsidiaries. Term Debt Instrument, Term Maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Date Established Debt Instrument, Issuance Date Maturity Debt Instrument, Maturity Date Total Debt Outstanding Subordinated Debt Interest Rate (as percent) Debt Instrument, Interest Rate, Effective Percentage Debt instrument, basis spread on variable rate (as percent) Debt Instrument, Basis Spread on Variable Rate Debt instrument, term of variable rate Debt Instrument, Term of variable rate Term of the interest rate that fluctuates over time as a result of an underlying benchmark interest rate or index. Coupon Structure Debt Instrument, Description of Variable Rate Basis Debt issuance costs and fair value adjustments Debt Issuance Costs, Net Line of credit outstanding Long-term Line of Credit Unused fee, percentage Line of Credit Facility, Unused Capacity, Commitment Fee Percentage Proceeds from Issuance of Debt Proceeds from Issuance of Debt Debt repurchase Debt Instrument, Repurchase Amount Debt interest rate (percentage) Debt Instrument, Interest Rate, Stated Percentage Debt, aggregate principal to be repurchased Debt Instrument, Repurchased Face Amount Accounting Policies [Abstract] Basic net income per share calculation: Earnings Per Share, Basic [Abstract] Numerator - Net income Net Income (Loss) Available to Common Stockholders, Basic Denominator - Weighted average common shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Basic Basic net income per common share (in dollars per share) Earnings Per Share, Basic Diluted net income per share calculation: Earnings Per Share, Diluted [Abstract] Numerator – Net income Net Income (Loss) Available to Common Stockholders, Diluted Denominator - Weighted average common shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Basic and Diluted Dilutive shares contingently issuable (in shares) Incremental Common Shares Attributable to Dilutive Effect of Contingently Issuable Shares Weighted average diluted common shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Diluted Diluted net income per common share (in dollars per share) Earnings Per Share, Diluted Securities Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] Broker-Dealer, Net Capital Requirement, SEC Regulation [Abstract] Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table] Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table] Consolidated Entities [Axis] Consolidated Entities [Axis] Consolidated Entities [Domain] Consolidated Entities [Domain] Pinnacle Financial Parent Company [Member] Pinnacle Bank Subsidiaries [Member] Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] Preceding period of retained earnings used in calculation of dividend payable Number of preceding years Refers to maximum preceding period of retained earnings used in calculation of dividend payable, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Cash dividends paid to Pinnacle Financial by Pinnacle Bank SEC Schedule, 12-04, Cash Dividends Paid to Registrant, Consolidated Subsidiaries Retained earnings Retained Earnings (Accumulated Deficit) Quarterly common stock dividend (in dollar per share) Dividends Payable, Amount Per Share Compliance with regulatory capital requirements [Abstract] Compliance With Regulatory Capital Requirements [Abstract] Actual Tier One Risk Based Capital [Abstract] Total capital to risk weighted assets Capital Tier I capital to risk weighted assets Tier One Risk Based Capital Common Equity Tier I capital to risk weighted assets Common Equity Tier I Capital Common equity Tier I risk based capital as defined in the regulations. Tier I capital to average assets Tier One Leverage Capital Actual Risk Based Ratios [Abstract] Total capital to risk weighted assets (as percent) Capital to Risk Weighted Assets Tier I capital to risk weighted assets (as percent) Tier One Risk Based Capital to Risk Weighted Assets Common Equity Tier I capital to risk weighted assets (as percent) Common Equity Tier I Capital to Risk Weighted Assets Common Equity Tier I capital divided by risk weighted assets as defined by regulations. Tier I capital to average assets (as percent) Tier One Leverage Capital to Average Assets Minimum Capital Requirement Capital [Abstract] Total capital to risk weighted assets Capital Required for Capital Adequacy Tier I capital to risk weighted assets Tier One Risk Based Capital Required for Capital Adequacy Common Equity Tier I capital Common Equity Tier I Risk Based Capital Required for Capital Adequacy The minimum amount of Common Equity Tier I Capital required for capital adequacy purposes under the regulatory framework for prompt corrective action. Tier I capital to average assets Tier One Leverage Capital Required for Capital Adequacy Minimum Capital Requirement Leverage Ratios [Abstract] Total capital to risk weighted assets (as percent) Capital Required for Capital Adequacy to Risk Weighted Assets Tier I capital to risk weighted assets (as percent) Tier One Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets Common Equity Tier I capital to risk weighted assets (as percent) Common Equity Tier I risk based capital required for capital adequacy to risk weighted assets The minimum Common Equity Tier I ratio (Common Equity Tier I capital divided by risk-weighted assets) required for capital adequacy purposes under the regulatory framework for prompt corrective action. Tier I capital to average assets (as percent) Tier One Leverage Capital Required for Capital Adequacy to Average Assets Minimum To Be Well-Capitalized Under Prompt Corrective Action Resolutions Regulatory Minimum To Be Well Capitalized Amount [Abstract] Total capital to risk weighted assets Capital Required to be Well Capitalized Tier I capital to risk weighted assets Tier One Risk Based Capital Required to be Well Capitalized Common Equity Tier I capital to risk weighted assets Common Equity Tier I risk based capital required to be well capitalized The amount of Common Equity Tier I capital required to be categorized as well capitalized under the regulatory framework for prompt corrective action. Tier I capital to average assets Tier One Leverage Capital Required to be Well Capitalized Minimum To Be Well-Capitalized Under Prompt Corrective Action Resolutions Regulatory Minimum To Be Well Capitalized Ratio [Abstract] Total capital to risk weighted assets (as percent) Capital Required to be Well Capitalized to Risk Weighted Assets Tier I capital to risk weighted assets (as percent) Tier One Risk Based Capital Required to be Well Capitalized to Risk Weighted Assets Common Equity Tier I capital to risk weighted assets (as percent) Common Equity Tier I capital required to be well capitalized to risk weighted assets The Common Equity Tier I capital ratio (Common Equity Tier I capital divided by risk weighted assets) required to be categorized as "well capitalized" under the regulatory framework for prompt corrective action. Tier I capital to average assets (as percent) Tier One Leverage Capital Required to be Well Capitalized to Average Assets Schedule of Subordinated Debt and Other Borrowings Schedule of Long-term Debt Instruments [Table Text Block] 2019 Restricted granted shares 2019 Restricted granted shares [Member] Share instrument for 2019 which is convertible to stock or an equivalent amount of cash, after a specified period of time or when specified performance conditions are met. 2018 Restricted granted shares 2018 Restricted Share Unit [Member] Share instrument for 2018 which is convertible to stock or an equivalent amount of cash, after a specified period of time or when specified performance conditions are met. 2017 Restricted granted shares 2017 Restricted Share Unit [Member] Share instrument for 2017 which is convertible to stock or an equivalent amount of cash, after a specified period of time or when specified performance conditions are met. 2016 Restricted granted shares 2016 Restricted Share Units [Member] Share instrument for 2016 which is convertible to stock or an equivalent amount of cash, after a specified period of time or when specified performance conditions are met. 2015 Restricted granted shares Restricted Stock Units (RSUs) [Member] Title of Individual [Axis] Title of Individual [Axis] Title of Individual [Domain] Title of Individual [Domain] Named Executive Officers (NEOs) Senior Executive Officers [Member] Senior executive officers of the entity. Leadership Team other than NEOs Leadership Team [Member] Members of the leadership team of the entity other than the senior executive officers. Vesting [Axis] Vesting [Axis] Vesting [Domain] Vesting [Domain] Tranche 2015 Share-based Payment Arrangement, Tranche Two [Member] Tranche 2016 Share-based Payment Arrangement, Tranche Three [Member] Tranche 2017 Tranche 2017 [Member] Portion of share-based compensation award differentiated by a particular vesting feature, including, but not limited to, performance measure or service period. Tranche 2018 Tranche 2018 [Member] Portion of share-based compensation award differentiated by a particular vesting feature, including, but not limited to, performance measure or service period. Tranche 2019 RSU Tranche 2019 [Member] Portion of share-based compensation award differentiated by a particular vesting feature, including, but not limited to, performance measure or service period. Tranche 2020 Tranche 2020 [Member] Portion of share-based compensation award differentiated by a particular vesting feature, including, but not limited to, performance measure or service period. Tranche 2021 Tranche 2021 [Member] Portion of share-based compensation award differentiated by a particular vesting feature, including, but not limited to, performance measure or service period. Service period per tranche (in years) Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Subsequent holding period per tranche (in years) Share- Based Compensation Arrangement By Share- Based Payment Award Holding Period Period which an employee's right to hold an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Fair Value Disclosures [Abstract] Fair Value, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Measurement Frequency [Axis] Measurement Frequency [Axis] Measurement Frequency [Domain] Measurement Frequency [Domain] Recurring Fair Value, Recurring [Member] Nonrecurring Fair Value, Nonrecurring [Member] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Quoted market prices in an active market (Level 1) Fair Value, Inputs, Level 1 [Member] Models with significant observable market parameters (Level 2) Fair Value, Inputs, Level 2 [Member] Models with significant unobservable market parameters (Level 3) Fair Value, Inputs, Level 3 [Member] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Assets and liabilities measured at fair value on a recurring basis [Abstract] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Abstract] Assets, Fair Value Disclosure [Abstract] Assets, Fair Value Disclosure [Abstract] U.S. Treasury securities United States Treasury Securities Fair Value Disclosure This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents US government treasury securities. U.S. government agency securities United States Government Agency Securities, Fair Value Disclosure This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents US government treasury and federal agency issued securities. Mortgage-backed securities Mortgage-backed Securities Available-for-sale, Fair Value Disclosure State and municipal securities States and municipal securities, Fair Value Disclosure This element represents a certain statement of financial position asset caption which represents a class of assets, or which may include an individual asset, measured at fair value on a recurring basis. This category includes information about state and municipal bonds. Agency-backed securities Agency backed securities, Fair Value Disclosure This element represents a certain statement of financial position asset caption which represents a class of assets, or which may include an individual asset, measured at fair value on a recurring basis. This category includes information about agency backed securities. Corporate notes and other Corporate notes and other, Fair Value Disclosure Corporate notes and other, Fair Value Disclosure Total investment securities available-for-sale Investments, Fair Value Disclosure Other Investments Alternative Investment Other assets Other Assets, Fair Value Disclosure Total assets at fair value Assets, Fair Value Disclosure Liabilities at fair value: [Abstract] Liabilities, Fair Value Disclosure [Abstract] Other liabilities Other Liabilities, Fair Value Disclosure Total liabilities at fair value Financial and Nonfinancial Liabilities, Fair Value Disclosure Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Abstract] Fair Value Assets And Liabilities Measured On non Recurring Basis [Abstract] Impaired Financing Receivable, with Related Allowance, Recorded Investment Impaired Financing Receivable, with Related Allowance, Recorded Investment Other real estate owned Other Real Estate Gain (Loss) on Other real estate owned Gain loss on Other real estate owned Represents the amounts of gains and losses on other real estate owned from fair value changes included in earnings. Total losses on impaired loans, net Gain Loss On Impaired loans, net Represents the amounts of gains and losses on impaired loans, net from fair value changes included in earnings. Gain Loss On assets Gain Loss On assets For each line item in the statement of financial position, the amounts of gains and losses from fair value changes included in earnings. Valuation allowance Impaired Financing Receivable, Related Allowance Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Use of Estimates Use of Estimates, Policy [Policy Text Block] Income Per Common Share Earnings Per Share, Policy [Policy Text Block] Recently Adopted Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Description of New Accounting Pronouncements Not yet Adopted [Text Block] Description of New Accounting Pronouncements Not yet Adopted [Text Block] Reclassifications [Text Block] Reclassifications [Text Block] Subsequent Events Subsequent Events, Policy [Policy Text Block] Lease, Cost [Abstract] Operating lease cost Operating Lease, Cost Short-term lease cost Short-term Lease, Cost Interest on lease liabilities Finance Lease, Interest Expense Amortization of right-of-use asset Finance Lease, Right-of-Use Asset, Amortization Sublease income Sublease Income Net lease cost Lease, Cost Rent expense related to leases Operating Leases, Rent Expense Operating cash flows related to operating leases Operating Lease, Payments Operating cash flows related to finance leases Finance Lease, Interest Payment on Liability Financing cash flows related to finance leases Finance Lease, Principal Payments Number of markets entity operates Number of Markets in Which Entity Operates Number of Markets in Which Entity Operates Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Advocate Capital, Inc. [Member] Advocate Capital, Inc. [Member] Advocate Capital, Inc. [Member] Business Acquisition [Line Items] Business Acquisition [Line Items] Acquisition, cash price Payments to Acquire Businesses, Gross Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Financial Assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Financial Assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt Schedule of Equity Method Investments [Table] Schedule of Equity Method Investments [Table] Investment, Name [Axis] Investment, Name [Axis] Investment, Name [Domain] Investment, Name [Domain] Bankers Healthcare Group, LLC Bankers Healthcare Group, LLC [Member] Acquisition of Bankers Healthcare Group LLC Subsequent Event Type [Axis] Subsequent Event Type [Axis] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Subsequent Event Subsequent Event [Member] Schedule of Equity Method Investments [Line Items] Schedule of Equity Method Investments [Line Items] Ownership interest (as percent) Equity Method Investment, Ownership Percentage Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Measurement Basis [Axis] Measurement Basis [Axis] Fair Value Measurement [Domain] Fair Value Measurement [Domain] Portion at Fair Value Measurement Portion at Fair Value Measurement [Member] Carrying/ Notional Amount Reported Value Measurement [Member] Estimated Fair Value Estimate of Fair Value Measurement [Member] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Financial assets: Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] Securities held-to-maturity Loans, net Loans Receivable, Fair Value Disclosure Consumer loans held-for-sale Mortgages Held-for-sale, Fair Value Disclosure Commercial loans held-for-sale Loans Held-for-sale, Fair Value Disclosure Financial liabilities: Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract] Deposits and securities sold under agreements to repurchase Deposits and securities sold under agreements to repurchase, fair value disclosure Fair value portion of deposits and securities sold under agreements to repurchase as a specified date for a specified price. Federal Home Loan Bank advances Federal Home Loan Bank Borrowings, Fair Value Disclosure Subordinated debt and other borrowings Subordinated Debt Obligations, Fair Value Disclosure Off-balance sheet instruments: Off balance sheet instruments [Abstract] Commitments to extend credit Fair Value Disclosure, Off-balance Sheet Risks, Amount, Liability Standby letters of credit Letters of Credit Outstanding, Amount Statement of Stockholders' Equity [Abstract] Statement [Table] Statement [Table] Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Common Stock Common Stock [Member] Additional Paid-in Capital Additional Paid-in Capital [Member] Retained Earnings Retained Earnings [Member] Accumulated Other Comp. Income (Loss), net AOCI Attributable to Parent [Member] Statement [Line Items] Statement [Line Items] Common Stock, Dividends, Per Share, Cash Paid Common Stock, Dividends, Per Share, Cash Paid Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Balance Stockholders' Equity Attributable to Parent Balance (in shares) Shares, Outstanding Exercise of employee common stock options and related tax benefits Stock Issued, Value, Stock Options Exercised, Net of Tax Benefit (Expense) Exercise of employee common stock options and related tax benefits (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Common dividends paid Dividends, Common Stock, Cash Repurchase of common stock Stock Repurchased During Period, Value Repurchase of common stock (in shares) Stock Repurchased During Period, Shares Issuance of restricted common shares, net of forfeitures Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures Issuance of restricted common shares, net of forfeitures (in shares) Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures Restricted shares withheld for taxes & related tax benefit Share-based Payment Arrangement, Decrease for Tax Withholding Obligation Restricted shares withheld for taxes (in shares) Share-based Payment Arrangement, Shares Withheld for Tax Withholding Obligation Stock-based compensation expense Share-based Payment Arrangement, Noncash Expense Net income Net Income (Loss) Attributable to Parent Other comprehensive income (loss) Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Balance Balance (in shares) Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Asset Class [Axis] Asset Class [Axis] Asset Class [Domain] Asset Class [Domain] Other assets Other Assets [Member] Available-for-sale Securities Available-for-sale Securities [Member] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Assets measured on recurring basis, unobservable input reconciliation, calculation [Roll Forward] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Fair value, beginning of period Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value Total realized gains included in income Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings Changes in unrealized gains/losses included in other comprehensive income for assets and liabilities still held at period-end Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss) Purchases Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases Issuances Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Issuances Settlements Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements Transfers out of Level 3 Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3 Fair value, end of period Total realized gains included in income related to financial assets and liabilities still on the consolidated balance sheet at period-end Equity Method Investments and Joint Ventures [Abstract] Equity Method Investments Equity Method Investments [Table Text Block] Assets and Liabilities Measured at Fair Value on a Recurring Basis Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis Fair Value Measurements, Nonrecurring [Table Text Block] Rollforward of the Balance Sheet Amounts, Unobservable Input Reconciliation Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Carrying Amounts, Estimated Fair Value and Placement in the Fair Value Hierarchy of Financial Instruments Fair Value, by Balance Sheet Grouping [Table Text Block] Loans and Allowance for Loan Losses Loans, Notes, Trade and Other Receivables Disclosure [Text Block] Loss Contingencies [Table] Loss Contingencies [Table] Commitments Commitments to Extend Credit [Member] Home Equity Line of Credit Home Equity Line of Credit [Member] Standby letter of credit Standby Letters of Credit [Member] Loss Contingencies [Line Items] Loss Contingencies [Line Items] Amount of commitment Commitments and Contingencies Expiry period of standby letter of credit, maximum Expiry period of standby letter of credit Expiry period of standby letter of credit, maximum (in years), in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Accrual for inherent risks associated with commitments Concentration Risk, Credit Risk, Financial Instrument, Maximum Exposure Statement of Financial Position [Abstract] Restatement [Axis] Restatement [Axis] Restatement [Domain] Restatement [Domain] Class of Stock [Axis] Class of Stock [Axis] Class of Stock [Domain] Class of Stock [Domain] Assets [Abstract] Cash and noninterest-bearing due from banks Cash and Due from Banks Restricted Cash, Current Restricted Cash, Current Interest-bearing due from banks Interest-bearing Deposits in Banks and Other Financial Institutions Federal funds sold and other Federal Funds Sold Cash and cash equivalents Cash, Cash Equivalents, and Federal Funds Sold Securities held-to-maturity (fair value of $202.8 million and $193.1 million at Sept. 30, 2019 and Dec. 31, 2018, respectively) Consumer loans held-for-sale Loans Receivable Held-for-sale, Net, Not Part of Disposal Group Commercial loans held-for-sale Loans Receivable Held-for-sale, Amount Loans Loans and Leases Receivable, Net of Deferred Income Less allowance for loan losses Loans, net Loans and Leases Receivable, Net Amount Premises and equipment, net Property, Plant and Equipment, Net Equity method investment Equity Method Investments Accrued interest receivable Interest Receivable Goodwill Goodwill Core deposits and other intangible assets Intangible Assets, Net (Excluding Goodwill) Other real estate owned Real Estate Acquired Through Foreclosure Other assets Other Assets Total assets Assets Liabilities and Equity [Abstract] Deposits: Deposits [Abstract] Noninterest-bearing Noninterest-bearing Deposit Liabilities, Domestic Interest-bearing Interest-bearing Deposit Liabilities, Domestic Savings and money market accounts Deposits, Savings Deposits Time Time Deposits Total deposits Deposits, Domestic Securities sold under agreements to repurchase Securities Sold under Agreements to Repurchase Federal Home Loan Bank advances Advances from Federal Home Loan Banks Subordinated debt and other borrowings Accrued interest payable Interest Payable Other liabilities Other Liabilities Total liabilities Liabilities Stockholders' equity: Stockholders' Equity Attributable to Parent [Abstract] Preferred stock, no par value; 10.0 million shares authorized; no shares issued and outstanding Preferred Stock, Value, Outstanding Common stock, par value $1.00; 180.0 million shares authorized at Sept. 30, 2019 and Dec. 31, 2018; 76.7 million and 77.5 million shares issued and outstanding at Sept. 30, 2019 and Dec. 31, 2018, respectively Common Stock, Value, Outstanding Additional paid-in capital Additional Paid in Capital Accumulated other comprehensive income (loss), net of taxes Accumulated Other Comprehensive Income (Loss), Net of Tax Total stockholders' equity Total liabilities and stockholders' equity Liabilities and Equity Time Based Awards Time Based Awards [Member] Refers to shares vest in equal annual installments on the anniversary date of the grant. Outside Director Awards Outside Director Awards [Member] Refers to restricted share awards issued to the outside members of the board of directors in accordance with their board compensation plan. Restrictions lapse on the one year anniversary date of the award based on each individual board member meeting their attendance goals for the various board and board committee meetings to which each member was scheduled to attend. Associates Associates [Member] Associates of the entity. Outside directors Director [Member] Vesting Period in years Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Outstanding Vesting Period Vesting period of for equity-based awards excluding options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Shares awarded Restrictions Lapsed and shares released to participants Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Restrictions lapsed and shares released to associates and directors The number of restrictions lapsed and shares released to associates and directors made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Shares Forfeited by participants Shares Unvested Preferred stock, par value (in dollars per share) Preferred Stock, No Par Value Preferred stock, shares authorized (in shares) Preferred Stock, Shares Authorized Preferred stock, shares issued (in shares) Preferred Stock, Shares Issued Preferred stock, shares outstanding (in shares) Preferred Stock, Shares Outstanding Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Common stock, shares authorized (in shares) Common Stock, Shares Authorized Common stock, shares issued (in shares) Common Stock, Shares, Issued Common stock, shares outstanding (in shares) Common Stock, Shares, Outstanding Schedule of Impaired Financing Receivable [Table] Schedule of Impaired Financing Receivable [Table] Impaired loans with an allowance: Impaired loans with an allowance [Member] A loan for which the carrying amount of the loan is equal to or less than the present value of future cash flows (or the fair value of collateral if deemed collateral dependent), and accordingly no specific allowance is recorded. Impaired loans without an allowance: Impaired loans without an allowance [Member] A loan for which the carrying amount of the loan is greater than the present value of future cash flows (or the fair value of collateral if deemed collateral dependent), and accordingly a specific allowance is recorded equal to the excess carrying amount. Financing Receivable Portfolio Segment [Axis] Financing Receivable Portfolio Segment [Axis] Financing Receivable Portfolio Segment [Domain] Financing Receivable Portfolio Segment [Domain] Commercial real estate - mortgage Commercial Real Estate Portfolio Segment [Member] Consumer real estate - mortgage Residential Portfolio Segment [Member] Construction and land development Construction and Land Development Portfolio Segment [Member] Construction and Land Development Portfolio Segment [Member] Commercial and industrial Commercial and Industrial Portfolio Segment [Member] -- None. No documentation exists for this element. -- Consumer and other Consumer Portfolio Segment [Member] Financing Receivable, Impaired [Line Items] Financing Receivable, Impaired [Line Items] Recorded investment Impaired Financing Receivable, Recorded Investment Unpaid principal balances Impaired Financing Receivable, Unpaid Principal Balance Average recorded investment Impaired Financing Receivable, Average Recorded Investment Interest income recognized Impaired Financing Receivable, Interest Income, Accrual Method Summary of Significant Accounting Policies Basis of Presentation and Significant Accounting Policies [Text Block] Segments [Axis] Segments [Axis] Segments [Domain] Segments [Domain] Non-owner occupied commercial real estate and multifamily loans Non-owner occupied commercial real estate and multifamily loans [Member] Non-owner occupied commercial real estate and multifamily loans [Member] Credit Loss Status [Axis] Credit Loss Status [Axis] Credit Loss Status [Domain] Credit Loss Status [Domain] Receivables acquired with deteriorated credit quality Financial Asset Acquired with Credit Deterioration [Member] Number of contracts Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts Percentage of loan portfolio as commercial loan Percentage of loan portfolio as commercial loan Refers to percentage of loan portfolio analyzed as commercial loan type with a specifically assigned risk rating in the allowance for loan loss assessment. Risk rated loans Risk rated loans The amount of risk rated loans that are subject to continual review by the loan officer at the end of the period, Average balance of impaired loans Cash payments received on nonaccrual loans Impaired Financing Receivable, Interest Income, Cash Basis Method Nonaccrual loans Loans and Leases Receivable, Impaired, Interest Lost on Nonaccrual Loans Loan losses, allowance Percentage of credit exposure to risk based capital Percentage of credit exposure to risk based capital Refers to percentage of credit exposure (loans outstanding plus unfunded lines of credit) to total risk based capital to borrowers in certain industries. Loans and other extensions of credit granted to directors, executive officers, and their related entities Loans And Leases maximum permissible Receivable Related Parties For an unclassified balance sheet, reflects the maximum permissible amount of unpaid loan amounts due from related parties at the balance sheet date. Amount drawn from loans and other extensions of credit granted Loans and Leases Receivable, Related Parties Mortgage loans held-for-sale Mortgage loans held-for-sale Mortgage loans held-for-sale Loans sold Proceeds from Sale of Mortgage Loans Held-for-sale Gain on mortgage loans sold, net Gain (Loss) on Sale of Mortgage Loans Common stock options Share-based Payment Arrangement, Option [Member] Number Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] Outstanding, beginning balance (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross Exercised (in shares) Forfeited (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period Outstanding, ending balance (in shares) Weighted-Average Exercise Price Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Outstanding, beginning balance (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Outstanding, ending balance (in dollars per share) Additional disclosures Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract] Options exercisable (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number Weighted- average exercise price of options exercisable (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price Weighted-average contractual remaining term for options outstanding Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Weighted-average contractual remaining term for options exercisable Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Weighted Average Remaining Contractual Term Aggregate intrinsic value Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value Aggregate intrinsic value of options exercisable Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value Quoted closing price of common stock (in dollars per share) Quoted closing price of common stock Refers to quoted closing price of common stock. Number of awards used in aggregate intrinsic value (in shares) Number of awards used in aggregate intrinsic value Refers to number of awards used in arriving at aggregate intrinsic value. Plan Name [Axis] Plan Name [Axis] Plan Name [Domain] Plan Name [Domain] 2018 Equity Incentive Plan 2018 Equity Incentive Plan [Member] 2018 Equity Incentive Plan [Member] BNC Bancorp 2013 Omnibus Stock Incentive Plan [Member] BNC Bancorp 2013 Omnibus Stock Incentive Plan [Member] BNC Bancorp 2013 Omnibus Stock Incentive Plan [Member] Plans other than 2018 Omnibus Equity Incentive Plan [Member] Plans other than 2018 Omnibus Equity Incentive Plan [Member] Plans other than 2018 Omnibus Equity Incentive Plan [Member] CapitalMark Plan CapitalMark Plan [Member] CapitalMark Plan [Member] Shares available for issuances (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant Shares acquired in period (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Acquisitions in Period Share-based Compensation Arrangement by Share-based Payment Award, Options, Acquisitions in Period Stock-based compensation expense Remaining Share-Based Compensation on Unvested Restricted Stock Awards Remaining Share-Based Compensation on Unvested Restricted Stock Awards Remaining unrecognized share-based compensation expense on unvested restricted stock awards and units as of period end date. Weighted Average Remaining Period of Sharebased Compensation Expense Weighted Average Remaining Period of Sharebased Compensation Expense Represents the weighted average remaining period of sharebased compensation expense as of period end date. Summary of Regulatory Capital Requirement Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table Text Block] Equity method investment Equity Method Investments and Joint Ventures Disclosure [Text Block] Regulatory Matters Regulatory Capital Requirements under Banking Regulations [Text Block] Financing Receivable, Allowance for Credit Loss [Table] Financing Receivable, Allowance for Credit Loss [Table] Unallocated Unallocated Financing Receivables [Member] Financing Receivable, Allowance for Credit Loss [Line Items] Financing Receivable, Allowance for Credit Loss [Line Items] Financing Receivable, Allowance for Credit Loss [Roll Forward] Financing Receivable, Allowance for Credit Loss [Roll Forward] Beginning Balance Financing Receivable, Allowance for Credit Loss Charged-off loans Financing Receivable, Allowance for Credit Loss, Writeoff Recovery of previously charged-off loans Financing Receivable, Allowance for Credit Loss, Recovery Provision for loan losses Provision for Loan and Lease Losses Ending Balance Gross Carrying Value Business Combination, Acquired Receivables, Gross Contractual Amount [Roll Forward] Business Combination, Acquired Receivables, Gross Contractual Amount [Roll Forward] Gross carrying value, beginning balance Business Combination, Acquired Receivables, Gross Contractual Amount Acquisitions Business Combination Acquired Receivables Gross Contractual Acquisitions For receivables acquired in a business combination, the amount of acquisitions to the gross contractual amounts receivable. Business Combination Acquired Receivable Gross Contractual Transfer Business Combination Acquired Receivable Gross Contractual Transfer Business Combination Acquired Receivable Gross Contractual Transfer Year-to-date settlements Business Combination, Acquired Receivables, Gross Contractual Settlements For receivables acquired in a business combination, the amount of settlements to the gross contractual amounts receivable. Gross carrying value, ending balance Accretable Yield Certain Loans Acquired in Transfer, Accretable Yield [Roll Forward] Certain Loans Acquired in Transfer, Accretable Yield [Roll Forward] Accretable yield, beginning balance Certain Loans Acquired in Transfer, Accretable Yield Acquired Accretable Yield Acquired Accretable Yield The amount of additions due to acquisition to the aggregate excess of a loan's cash flows expected to be collected over the investor's initial investment in the loan. This relates to loans with deteriorating of credit quality since origination that were acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable. Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield, Reclassifications (to) from Nonaccretable Difference Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield, Reclassifications (to) from Nonaccretable Difference Year-to-date settlements Certain Loans Acquired in Transfer, Accretable Yield, Settlements The amount of settlements of the aggregate excess of a loan's cash flows expected to be collected over the investor's initial investment in the loan. This relates to loans with deteriorating of credit quality since origination that were acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable. Accretable yield, ending balance Nonaccretable Yield Certain Loans Acquired in Transfer, Nonaccretable Difference [Roll Forward] Certain Loans Acquired in Transfer, Nonaccretable Difference [Roll Forward] Nonaccretable yield, beginning balance Certain Loans Acquired in Transfer, Nonaccretable Difference Acquired Nonaccretable Yield Acquired Nonaccretable Yield The amount of additions due to acquisition to the loan's contractually required payments receivable in excess of the amount of its cash flows expected to be collected. This relates to loans with deteriorating of credit quality since origination that were acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable. Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield, Reclassifications from Nonaccretable Difference Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield, Reclassifications from Nonaccretable Difference Year-to-date settlements Certain Loans Acquired in Transfer, Nonaccretable Difference, Settlements The amount of settlements of the loan's contractually required payments receivable in excess of the amount of its cash flows expected to be collected. This relates to loans with deteriorating of credit quality since origination that were acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable. Nonaccretable yield, ending balance Net Carrying Value Business Combination, Acquired Receivables, Fair Value [Roll Forward] Business Combination, Acquired Receivables, Fair Value [Roll Forward] Net carrying value, beginning balance Business Combination, Acquired Receivable, Fair Value Acquisitions Business Combination Acquired Receivables Fair Value Acquisitions For receivables acquired in a business combination, the amount of acquisitions to the fair value of the receivables acquired. Business Combination Acquired Receivable Net Contractual Transfer Business Combination Acquired Receivable Net Contractual Transfer Business Combination Acquired Receivable Net Contractual Transfer Year-to-date settlements Business Combination, Acquired Receivables, Fair Value Settlements For receivables acquired in a business combination, the amount of settlements to the fair value of the receivables acquired. Net carrying value, ending balance Loan Classification Categorized by Risk Rating Category Financing Receivable Credit Quality Indicators [Table Text Block] Purchase Credit Impaired Loans Certain Loans Acquired in Transfer During Period [Table Text Block] Tabular disclosure of the reconciliation of contractual cash flows to the carrying amount relating to certain loans acquired in a transfer. Summary of Recorded Investment, Unpaid Principal Balance and Related Allowance and Average Recorded Investment of Impaired Loans Impaired Financing Receivables [Table Text Block] Troubled Debt Restructurings Financing Receivable, Troubled Debt Restructuring [Table Text Block] Summary of Loan Portfolio Credit Risk Exposure Schedule of commercial loan portfolio [Table Text Block] Tabular disclosure of commercial loan portfolio for determining the existence of credit risk to industries. Past Due Balances by Loan Classification Financing Receivable, Past Due [Table Text Block] Details of Changes in the Allowance for Loan Losses Financing Receivable, Allowance for Credit Loss [Table Text Block] Pay fixed and receive variable swaps Pay variable and receive fixed swaps Asset derivatives Assets [Member] Liability derivatives Liability [Member] Hedging derivative Designated as Hedging Instrument [Member] Fair value hedge Fair Value Hedging [Member] Hedged Item [Axis] Hedged Item [Axis] Hedged Item [Axis] Hedged Item [Domain] Hedged Item [Domain] [Domain] for Hedged Item [Axis] Securities Securities Investment [Member] Loans Loans [Member] Closed Portfolio and Beneficial Interest, Last-of-Layer, Amortized Cost Closed Portfolio and Beneficial Interest, Last-of-Layer, Amortized Cost Amount of Gain (Loss) Recognized in Other Comprehensive Income (Loss) Unrealized Gain (Loss) on Interest Rate Cash Flow Hedges, Pretax, Accumulated Other Comprehensive Income (Loss) Gain on cash flow hedges reclassified from other comprehensive income into net income, net of tax Interest Rate Cash Flow Hedge Gain (Loss) Reclassified to Earnings, Net Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months Description of Location of Interest Rate Cash Flow Hedge Derivative on Balance Sheet Description of Location of Interest Rate Cash Flow Hedge Derivative on Balance Sheet Weighted Average Remaining Maturity Weighted Average Remaining Maturity Derivative Weighted Average Remaining Maturity Derivative Pay Rate (as percent) Derivative, Fixed Interest Rate Derivative, Type of Interest Rate Paid on Swap Derivative, Underlying Basis Receive Rate Derivative, Type Of Interest Rate Paid On Swap1 Derivative, Type Of Interest Rate Paid On Swap1 Forecasted Notional Amount Forecasted Notional Amount of Interest Rate Derivatives Aggregate forecasted notional amount of interest rate derivatives, which relates to the currency amount specified in the interest rate derivative instruments. Cash Flow Hedges Derivative Instruments at Fair Value, Net Cash Flow Hedges Derivative Instruments at Fair Value, Net Fair Value Hedge Assets Fair Value Hedges, Net Derivative Instruments and Hedges, Assets Derivative Instruments and Hedges, Assets Fair Value Hedging Adjustment Fair Value Hedging Adjustment Fair Value Hedging Adjustment Description of Location of Interest Rate Fair Value Hedge Derivative on Balance Sheet Description of Location of Interest Rate Fair Value Hedge Derivative on Balance Sheet Increase (Decrease) in Fair Value of Hedged Item in Interest Rate Fair Value Hedge Increase (Decrease) in Fair Value of Hedged Item in Interest Rate Fair Value Hedge Gain (Loss) on Fair Value Hedges Recognized in Earnings Gain (Loss) on Fair Value Hedges Recognized in Earnings Swap termination payment Derivative Asset, Swap Termination Payment Derivative Instrument, Swap Termination Payment Fair value hedging adjustment Derivative Asset, Fair Value Adjustment Derivative Asset, Fair Value Adjustment Amortization expense, reduction to interest income on loans Amortization Securities pledged as collateral Asset Pledged as Collateral [Member] Securities pledged as collateral to secure public funds and other deposits or securities sold under agreements to repurchase Financial Instruments, Owned and Pledged as Collateral, at Fair Value Secured borrowing under agreement to repurchase Securities Loaned and Securities Sold under Agreement to Repurchase, Gross Including Not Subject to Master Netting Arrangement Accumulated unrealized losses Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss Fair value of securities Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value Debt Securities Available-for-sale Sold Amount Debt Securities Available-for-sale Sold Amount Amount of investment in debt security, measured at fair value, sold. Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax Assets Equity Method Investment, Summarized Financial Information, Assets Liabilities Equity Method Investment, Summarized Financial Information, Liabilities Equity interests Equity Method Investment Summarized Financial Information, Equity Total liabilities and equity Equity Method Investment, Summarized Financial Information, Liabilities and Equity Equity Method Investment, Summarized Financial Information, Income Statement [Abstract] Equity Method Investment, Summarized Financial Information, Income Statement [Abstract] Revenues Equity Method Investment, Summarized Financial Information, Revenue Net income Equity Method Investment, Summarized Financial Information, Income (Loss) from Continuing Operations New Accounting Pronouncements or Change in Accounting Principle [Table] New Accounting Pronouncements or Change in Accounting Principle [Table] Adjustments for New Accounting Pronouncements [Axis] Adjustments for New Accounting Pronouncements [Axis] Type of Adoption [Domain] Type of Adoption [Domain] Accounting Standards Update 2016-02 Accounting Standards Update 2016-02 [Member] New Accounting Pronouncements or Change in Accounting Principle [Line Items] New Accounting Pronouncements or Change in Accounting Principle [Line Items] Cash Flow Information [Abstract] Supplemental Cash Flow Elements [Abstract] Cash Transactions: Cash Transactions [Abstract] Interest paid Interest Paid, Excluding Capitalized Interest, Operating Activities Income taxes paid, net Income Taxes Paid Noncash Transactions: Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Loans charged-off to the allowance for loan losses Loans foreclosed upon and transferred to other real estate owned Real Estate Owned, Transfer to Real Estate Owned Loans foreclosed upon and transferred to other assets Loans Foreclosed Upon And Transferred To Other Assets Value transferred from mortgage loans to other assets in noncash transactions. Other Real Estate Sales Financed Other Real Estate Sales Financed Represents the sell of other real estate financed and is included as a noncash transaction. Fixed assets transferred to other real estate owned Fixed assets transferred to other real estate owned Fixed assets transferred to other real estate owned Transfer of Loans Held-for-sale to Portfolio Loans Transfer of Loans Held-for-sale to Portfolio Loans Right of use assets recognized during the period Right of use assets recognized during the period Right of use assets recognized during the period Recognized upon initial adoption of ASU Cumulative Effect of New Accounting Principle in Period of Adoption Industry of Counterparty, Type [Axis] Industry of Counterparty, Type [Axis] Industry of Counterparty [Domain] Industry of Counterparty [Domain] Lessors of nonresidential buildings Lessors of nonresidential buildings [Member] Refers to lessors of Nonresidential Buildings. Lessors of residential buildings Lessors of residential buildings [Member] Refers to lessors of residential buildings. Hotels (except for Casino Hotels) and Motels 7011 Hotels and Motels [Member] 236117 New Housing Operative Builders [Member] 236117 New Housing Operative Builders [Member] Outstanding Principal Balances Financing receivables principal balance Represents the amount of financing receivables principal balance outstanding. Unfunded Commitments Financing receivables unfunded commitment Represents the amount of commitments made by a financial institution that are contractual obligations for future funding. Total exposure Financing receivables exposure Represents the amount of financing receivables exposure to credit risk. Technology, trade name and customer relationship intangibles Amortization of Intangible Assets Amortization of Intangible Assets Accretion income Accretion Income Accretion of discount into income Dividends received from equity method investment Proceeds from Equity Method Investment, Distribution Loan face amount Debt Instrument, Face Amount Operating Leases Lessee, Operating Lease, Liability, Payment, Due [Abstract] 2019 Lessee, Operating Lease, Liability, Payments, Remainder of Fiscal Year 2020 Lessee, Operating Lease, Liability, Payments, Due Year Two 2021 Lessee, Operating Lease, Liability, Payments, Due Year Three 2022 Lessee, Operating Lease, Liability, Payments, Due Year Four 2023 Lessee, Operating Lease, Liability, Payments, Due Year Five Thereafter Lessee, Operating Lease, Liability, Payments, Due after Year Five Total Lessee, Operating Lease, Liability, Payments, Due Less: Imputed interest Lessee, Operating Lease, Liability, Undiscounted Excess Amount Total lease liabilities Operating Lease, Liability Finance Leases Finance Lease, Liability, Payment, Due [Abstract] 2019 Finance Lease, Liability, Payments, Remainder of Fiscal Year 2020 Finance Lease, Liability, Payments, Due Year Two 2021 Finance Lease, Liability, Payments, Due Year Three 2022 Finance Lease, Liability, Payments, Due Year Four 2023 Finance Lease, Liability, Payments, Due Year Five Thereafter Finance Lease, Liability, Payments, Due after Year Five Total Finance Lease, Liability, Payment, Due Less: Imputed interest Finance Lease, Liability, Undiscounted Excess Amount Total lease liabilities Finance Lease, Liability Financing Receivable, Troubled Debt Restructuring [Table] Financing Receivable, Troubled Debt Restructuring [Table] Financing Receivable, Troubled Debt Restructuring [Line Items] Financing Receivable, Troubled Debt Restructuring [Line Items] Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts Number of contracts Financing Receivable, Modifications, Number of Contracts Pre Modification Outstanding Recorded Investment Financing Receivable, Troubled Debt Restructuring, Premodification Post Modification Outstanding Recorded Investment, net of related allowance Financing Receivable, Troubled Debt Restructuring, Postmodification Statement of Cash Flows [Abstract] Operating activities: Net Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net income to net cash provided by operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Net amortization/accretion of premium/discount on securities Accretion (Amortization) of Discounts and Premiums, Investments Depreciation, amortization and accretion expense (income) Depreciation, Amortization and Accretion, Net Gain on mortgage loans sold, net Gain (Loss) on Sales of Loans, Net Investment losses (gains) on sales, net Gain (Loss) on Sale of Investments Deferred tax expense Deferred Income Tax Expense (Benefit) Losses (gains) on dispositions of other real estate and other investments Gains Losses On Sales Of Other Real Estate And Other Investments The net gain (loss) resulting from sales and other disposals of other real estate owned, increases (decreases) in the valuation allowance for foreclosed real estate, and write-downs of other real estate owned after acquisition or physical possession and the gain (loss) resulting from the disposition of other investments. Income from equity method investment Income (Loss) from Equity Method Investments Excess tax benefit from stock compensation Excess Tax Benefit from Share-based Compensation, Operating Activities Gain on commercial loans sold, net Increase (Decrease) in Loans Held-for-sale Commercial loans held for sale: Increase (Decrease) in Loans Held-for-sale [Abstract] Loans originated Payments for Origination and Purchases of Loans Held-for-sale Loans sold Proceeds from Sale of Other Loans Held-for-sale Consumer loans held for sale: Increase (Decrease) in Mortgage Loans Held-for-sale [Abstract] Loans originated Payments for Origination of Mortgage Loans Held-for-sale Loans sold Proceeds from Sale of Loans Held-for-sale Increase in other assets Increase (Decrease) in Other Operating Assets Increase in other liabilities Increase (Decrease) in Other Operating Liabilities Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Investing activities: Net Cash Provided by (Used in) Investing Activities [Abstract] Activities in securities available-for-sale: Activities in securities available for sale: [Abstract] Purchases Payments to Acquire Available-for-sale Securities Sales Proceeds from Sale of Available-for-sale Securities Maturities, prepayments and calls Proceeds from Maturities, Prepayments and Calls of Debt Securities, Available-for-sale Activities in securities held-to-maturity: Activities in securities held to maturity: [Abstract] Purchases Payments to Acquire Held-to-maturity Securities Maturities, prepayments and calls Proceeds from Maturities, Prepayments and Calls of Held-to-maturity Securities Increase in loans, net Payments for (Proceeds from) Loans and Leases Purchases of software, premises and equipment Payments to Acquire Property, Plant, and Equipment Proceeds from sales of software, premises and equipment Proceeds from Sales of Assets, Investing Activities Proceeds from sale of other real estate Proceeds from Sale of Other Real Estate Payments to Acquire Businesses, Net of Cash Acquired Payments to Acquire Businesses, Net of Cash Acquired Cash Acquired from Acquisition Cash Acquired from Acquisition Purchase of bank owned life insurance policies Payment to Acquire Life Insurance Policy, Investing Activities Proceeds from bank owned life insurance settlements Proceeds from Insurance Settlement, Investing Activities Payments related to derivative instruments Payments for Derivative Instrument, Investing Activities Increase in other investments Payments for (Proceeds from) Other Investing Activities Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities Financing activities: Net Cash Provided by (Used in) Financing Activities [Abstract] Net increase in deposits Increase (Decrease) in Deposits Net decrease in securities sold under agreements to repurchase Proceeds from (Payments for) in Securities Sold under Agreements to Repurchase Advances from Federal Home Loan Bank: Advances from Federal Home Loan Bank: [Abstract] Issuances Proceeds from FHLBank Borrowings, Financing Activities Payments/maturities Payments of FHLBank Borrowings, Financing Activities Increase in other borrowings, net of issuance costs Proceeds from (Repayments of) Lines of Credit Repayments of Notes Payable Repayments of Notes Payable Principal payments of finance lease obligation Repayments of Debt and Lease Obligation Exercise of common stock options, net of repurchase of restricted shares Proceeds from (Repurchase of) Equity Payments for Repurchase of Common Stock Payments for Repurchase of Common Stock Common stock dividends paid