Receivables [Abstract] Loans Held for Investment Loans, Notes, Trade and Other Receivables Disclosure [Text Block] Fair Value Disclosures [Abstract] Fair Value of Financial Instruments Fair Value by Balance Sheet Grouping and Schedule of Fair Value Off Balance Sheet Risks [Text Block] This item represents certain of the disclosures concerning the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments, assets, and liabilities. Such certain disclosures about the financial instruments, assets, and liabilities include: (1) the fair value of the required items together with their carrying amounts (as appropriate) and (2) the methodology and assumptions used in developing such estimates of fair value. Also includes the complete disclosure regarding the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined) which is not recognized as liabilities in the financial statements (off-balance-sheet) because they fail to meet some other criterion for recognition. Statement of Cash Flows [Abstract] Cash flows from operating activities: Net Cash Provided by (Used in) Operating Activities, Continuing Operations [Abstract] Net income Net Income (Loss) Attributable to Parent Adjustments to net income: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Depreciation and amortization expense Depreciation, Depletion and Amortization Provision for credit losses Provision for Loan, Lease, and Other Losses Share-based compensation expense Share-based Compensation Loss on sale and disposal of premises and equipment Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property Loss on sale of or write down of other real estate owned Write Down of Other Real Estate Owned This element represents the write-down of other real estate owned after acquisition or physical possession. Net amortization on securities Amortization of Debt Discount (Premium) Net accretion of deferred loan fees/costs and discounts/premiums for loans acquired Accretion (Amortization) of Discounts and Premiums, Investments Gain on sale of investment securities available-for-sale Debt and Equity Securities, Gain (Loss) Originations of loans held for sale Payments to Purchase Loans Held-for-sale Proceeds from the sales of and principal payments from loans held for sale Proceeds from Sale of Loans Held-for-sale Gain on sale of loans Gain (Loss) on Sale of Loans Held For Investment The net gain (loss) resulting from a sale of loans held for investment, including fair value adjustments to loans held for investment purposes. Deferred income tax expense Deferred Income Tax Expense (Benefit) Change in accrued expenses and other liabilities, net Increase (Decrease) in Accounts Payable and Accrued Liabilities Income from bank owned life insurance, net Bank Owned Life Insurance Income (Expense), Net Bank Owned Life Insurance Income (Expense), Net Amortization of core deposit intangible Amortization of Core Deposit Intangible Amortization of Core Deposit Intangible Change in accrued interest receivable and other assets, net Increase (Decrease) in Accrued Interest Receivable Net and Other Assets This element represents the net change during the reporting period in the amount due from borrowers for interest payments. Also includes the net change in other assets not otherwise specified in the taxonomy. Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Cash flows from investing activities: Net Cash Provided by (Used in) Investing Activities, Continuing Operations [Abstract] Net decrease in interest-bearing time deposits with financial institutions Proceeds from (Payments for) in Interest-bearing Deposits in Banks Proceeds from sale of other real estate owned Proceeds from Principal Repayments on Loans and Leases Held-for-investment Increase in loans, net Increase (Decrease) in Undisbursed Loan Funds Purchase of held-to-maturity securities Payments to Acquire Held-to-maturity Securities Principal payments on held-to-maturity securities Principal Payments on Held-to-maturity Securities Principal Payments on Held-to-maturity Securities Purchase of securities available-for-sale Payments to Acquire Debt Securities, Available-for-sale Principal payments on securities available-for-sale Payments On Available For Sale Securities Payments On Available For Sale Securities Proceeds from sale or maturity of securities available-for-sale Proceeds from Sale and Maturity of Debt Securities, Available-for-sale Proceeds from the sale of premises and equipment Proceeds from Sale of Property, Plant, and Equipment Proceeds from bank owned life insurance death benefit Proceeds from Life Insurance Policy Purchases of premises and equipment Payments to Acquire Property, Plant, and Equipment Change in FHLB, FRB, and other stock, at cost Payments for (Proceeds from) Federal Reserve Bank Stock Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities Cash flows from financing activities: Net Cash Provided by (Used in) Financing Activities, Continuing Operations [Abstract] Net increase in deposit accounts Increase (Decrease) in Deposits Net change in short-term borrowings Proceeds from (Repayments of) Short-term Debt Repayment of long-term FHLB borrowings Repayments of Federal Home Loan Bank and Other Borrowings This element represents the cash outflow for the payment of loans drawn from the Federal Home Loan Bank. Also includes the repayment of other borrowings not otherwise specified in the taxonomy. Cash dividends paid Payments of Dividends Proceeds from exercise of stock options and warrants Proceeds from Stock Options Exercised Restricted stock surrendered and canceled Payments Related to Tax Withholding for Share-based Compensation Net cash (used in) provided by financing activities Net Cash Provided by (Used in) Financing Activities Net decrease in cash and cash equivalents Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Cash and cash equivalents, beginning of period Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Cash and cash equivalents, end of period Supplemental cash flow disclosures: Supplemental Cash Flow Information [Abstract] Interest paid Interest Paid, Excluding Capitalized Interest, Operating Activities Income taxes paid Income Taxes Paid Noncash investing activities during the period: Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Transfers from loans to other real estate owned Real Estate Owned, Transfer to Real Estate Owned Receivable on unsettled security sales Proceeds from (Payments for) Securities Subsequent to Period End Proceeds from (Payments for) Securities Subsequent to Period End Due on unsettled security purchases Amount Due on Security Purchase, Unsettled Amount Due on Security Purchase, Unsettled Initial recognition of operating lease right-of-use assets Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Initial recognition of operating lease liabilities Right-of-Use Asset Obtained in Exchange for Finance Lease Liability 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] Accumulated Retained Earnings Retained Earnings [Member] Accumulated Other Comprehensive (Loss) Income AOCI Attributable to Parent [Member] Statement Statement [Line Items] Increase (Decrease) in Stockholders' Equity Increase (Decrease) in Stockholders' Equity [Roll Forward] Balance Stockholders' Equity Attributable to Parent Balance (in shares) Common Stock, Shares, Issued Other comprehensive income Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax, Portion Attributable to Parent Cash dividends declared ($0.22 per common share) Dividends, Common Stock, Cash Dividend equivalents declared ($0.22 per restricted stock units) Dividends, Share-based Compensation Share-based compensation expense Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition Issuance of restricted stock, net Stock Issued During Period, Value, Restricted Stock Award, Gross Issuance of restricted stock, net (in shares) Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures Restricted stock surrendered and canceled Stock Issued During Period, Value, Restricted Stock Award, Forfeitures Restricted stock surrendered and canceled (in shares) Stock Repurchased and Retired During Period, Shares Exercise of stock options Stock Issued During Period, Value, Stock Options Exercised Exercise of stock options (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Reclassification of certain tax effects of the Tax Cuts and Jobs Act Tax Cuts And Jobs Act Of 2017, Reclassification From AOCI To Retained Earnings, Tax Effect Amount of increase (decrease) in accumulated other comprehensive income (AOCI) for reclassification to retained earnings of tax effect from remeasurement of deferred tax pursuant to Tax Cuts and Jobs Act of 2017. Balance Balance (in shares) Document and Entity Information Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Document Type Document Type Document Period End Date Document Period End Date Amendment Flag Amendment Flag Entity Emerging Growth Company Entity Emerging Growth Company Entity Small Business Entity Small Business Current Fiscal Year End Date Current Fiscal Year End Date Entity Filer Category Entity Filer Category Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Schedule of Financing Receivables Past Due [Table] Schedule of Financing Receivables Past Due [Table] Financing Receivable Portfolio Segment [Axis] Financing Receivable Portfolio Segment [Axis] Financing Receivable Portfolio Segment [Domain] Financing Receivable Portfolio Segment [Domain] Business loans Commercial Portfolio Segment [Member] Real estate loans Commercial Real Estate Portfolio Segment [Member] Consumer Loans Consumer Portfolio Segment [Member] Financing Receivables, Period Past Due [Axis] Financing Receivables, Period Past Due [Axis] Financing Receivables, Period Past Due [Domain] Financing Receivables, Period Past Due [Domain] Current Financing Receivables, 1 to 29 Days Past Due [Member] 30-59 Financing Receivables, 30 to 59 Days Past Due [Member] 60-89 Financing Receivables, 60 to 89 Days Past Due [Member] 90 Financing Receivables, Equal to Greater than 90 Days Past Due [Member] Class of Financing Receivable, Type [Axis] Class of Financing Receivable, Type [Axis] Class of Financing Receivable, Type [Domain] Class of Financing Receivable, Type [Domain] Commercial and industrial Commercial And Industrial Business Loan [Member] A loan, whether secured or unsecured, to a company for purposes such as seasonal working capital needs, inventory financing, equipment purchases, acquisitions and industrial needs. Franchise Franchise Business Loans [Member] Franchise Business Loans [Member] Commercial owner occupied Commercial Owner Occupied Business Loan [Member] Represents the business loans related to commercial property occupied by the owner. SBA Small Business Administration Loans [Member] Represents the information pertaining to business loans for which Small Business Administration (SBA) provides a government-backed guarantee. Agribusiness Agriculture Loans [Member] Agriculture Loans [Member] Commercial non-owner occupied Commercial Non Owner Occupied Real Estate Loan [Member] Represents the loans related to the commercial real estate not occupied by the owner. Multi-family Multi Family Real Estate Loan [Member] Represents the information pertaining to real estate loans in multi-family sector. One-to-four family One To Four Family Real Estate Loan [Member] Represents the information pertaining to real estate loans in one-to-four family sector. Construction Construction Loans [Member] Farmland Farmland Loans [Member] Farmland Loans [Member] Land Real Estate Land [Member] Represents the information pertaining to real estate loans in land sector. Consumer loans Consumer Loan [Member] Other information concerning the credit quality Financing Receivable, Recorded Investment, Past Due [Line Items] Current Financing Receivable, Recorded Investment, Current Days Past Due Financing Receivable, Recorded Investment, Past Due Gross loans Loans and Leases Receivable, Gross Non-Accruing Financing Receivable, Recorded Investment, Nonaccrual Status 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 [Member] Portion at Fair Value Measurement [Member] Carrying Amount Reported Value Measurement [Member] Estimated Fair Value Estimate of Fair Value Measurement [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] Level 1 Fair Value, Inputs, Level 1 [Member] Level 2 Fair Value, Inputs, Level 2 [Member] Level 3 Fair Value, Inputs, Level 3 [Member] Cash and Cash Equivalents [Axis] Cash and Cash Equivalents [Axis] Cash and Cash Equivalents [Domain] Cash and Cash Equivalents [Domain] Interest-bearing time deposits with financial institutions Bank Time Deposits [Member] Fair Value of Financial Instruments Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Assets: Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] Cash and cash equivalents Cash and Cash Equivalents, Fair Value Disclosure Investments held-to-maturity Debt Securities, Held-to-maturity, Fair Value Investment securities available-for-sale, at fair value Debt Securities, Available-for-sale Loans held for sale Loans Held-for-sale, Fair Value Disclosure Loans held for investment, net Loans Receivable, Fair Value Disclosure Derivative assets Derivative Asset Accrued interest receivable Interest Receivable Liabilities: Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract] Deposit accounts Deposits, Fair Value Disclosure FHLB advances Advances from Federal Home Loan Banks Other borrowings Other Borrowings Fair Value Disclosure Amount of other borrowings not otherwise specified in the taxonomy, measured at fair value. Subordinated debentures Subordinated Debt Obligations, Fair Value Disclosure Derivative liabilities Derivative Liability Accrued interest payable Interest Payable Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value Measurements, Recurring and Nonrecurring [Table] Measurement Frequency [Axis] Measurement Frequency [Axis] Fair Value, Measurement Frequency [Domain] Fair Value, Measurement Frequency [Domain] Recurring basis Fair Value, Measurements, Recurring [Member] Financial Instrument [Axis] Financial Instrument [Axis] Financial Instruments [Domain] Financial Instruments [Domain] U.S. Treasury US Treasury Securities [Member] Agency Agency Securities [Member] Corporate Corporate Debt Securities [Member] Municipal bonds Municipal Bonds [Member] Collateralized mortgage obligation: residential Collateralized Mortgage Obligations [Member] Mortgage-backed securities: residential Collateralized Mortgage Backed Securities [Member] Fair Value Disclosures Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Financial assets Assets, Fair Value Disclosure [Abstract] Financial liabilities Financial Liabilities Fair Value Disclosure [Abstract] Cash dividends declared (in dollars per share) Common Stock, Dividends, Per Share, Declared Dividend equivalents declared (in dollars per share) Dividends, Share-based Compensation, Per Share, Declared Dividends, Share-based Compensation, Per Share, Declared Investments, Debt and Equity Securities [Abstract] Investment Securities Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] Nonaccrual loans Impaired Financing Receivable, Unpaid Principal Balance, Nonaccrual Status Amount of unpaid principal balance of impaired financing receivables that are on nonaccrual status as of the balance sheet date with related allowance for credit losses and without related allowance for credit losses. Accruing loans Impaired Financing Receivable, Unpaid Principal Balance, Accrual Status Amount of unpaid principal balance of impaired financing receivables that are on accrual status as of the balance sheet date with related allowance for credit losses and without related allowance for credit losses. Total impaired loans Impaired Financing Receivable, Recorded Investment Statement of Comprehensive Income [Abstract] Unrealized holding (loss)/gain on securities arising during the period, income tax expense (benefit) Other Comprehensive Income (Loss), Securities, Available-for-Sale, Unrealized Holding Gain (Loss) Arising During Period, Tax Reclassification adjustment for net (gains) losses on sale of securities included in net income, income tax expense (benefit) Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Tax Income Statement [Abstract] Product and Service [Axis] Product and Service [Axis] Product and Service [Domain] Product and Service [Domain] Service charges on deposit accounts Deposit Account [Member] Other service fee income Financial Service, Other [Member] Debit card interchange fee income Debit Card [Member] INTEREST INCOME Interest and Dividend Income, Operating [Abstract] Loans Interest and Fee Income, Loans and Leases Investment securities and other interest-earning assets Interest and Dividend Income Securities and Other Interest and dividend income on all securities plus interest earned on other assets not otherwise specified in the taxonomy. Total interest income Interest and Dividend Income, Operating INTEREST EXPENSE Interest Expense [Abstract] Deposits Interest Expense, Deposits FHLB advances and other borrowings Interest Expense Federal Home Loan Bank Advances and Other Borrowings Interest expense incurred during the reporting period on borrowings associated with Federal Home Loan Bank advances and other borrowings not otherwise specified in the taxonomy. Subordinated debentures Interest Expense, Subordinated Notes and Debentures Total interest expense Interest Expense Net interest income before provision for credit losses Interest Income (Expense), Net Net interest income after provision for credit losses Interest Income (Expense), after Provision for Loan Loss NONINTEREST INCOME Noninterest Income [Abstract] Loan servicing fees Loan Servicing Fees Loan Servicing Fees Noninterest income Revenue from Contract with Customer, Excluding Assessed Tax Earnings on bank-owned life insurance Bank Owned Life Insurance Income Net gain from sales of loans Gain (Loss) on Sales of Loans, Net Net gain from sales of investment securities Other income Noninterest Income, Other Operating Income Total noninterest income Noninterest Income NONINTEREST EXPENSE Noninterest Expense [Abstract] Compensation and benefits Labor and Related Expense Premises and occupancy Occupancy, Net Data processing Communications and Information Technology Other real estate owned operations, net Other Real Estate Owned Operations Net This element represents the fair value losses recognized as a result of valuations performed subsequent to foreclosure. FDIC insurance premiums Federal Deposit Insurance Corporation Premium Expense Legal, audit and professional expense Professional Fees Marketing expense Marketing Expense Office, telecommunications and postage expense Supplies and Postage Expense Loan expense Loan Processing Fee Deposit expense Deposit Expense Represents the amount of expenses incurred by the entity relating to deposits made by it. Merger-related expense Business Combination, Integration Related Costs CDI amortization Amortization of Intangible Assets Other expense Other Noninterest Expense Total noninterest expense Noninterest Expense Net income before income taxes Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest Income tax Income Tax Expense (Benefit) Net income EARNINGS PER SHARE Earnings Per Share [Abstract] Basic (in dollars per share) Earnings Per Share, Basic Diluted (in dollars per share) Earnings Per Share, Diluted WEIGHTED AVERAGE SHARES OUTSTANDING Weighted Average Number of Shares Outstanding, Diluted [Abstract] Basic (in shares) Weighted Average Number of Shares Outstanding, Basic Diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Instruments Derivative Instruments and Hedging Activities Disclosure [Text Block] Investment Holdings [Table] Investment Holdings [Table] Other Other Security Investments [Member] Investment Securities Investment Holdings [Line Items] Total Available-For-Sale And Held-To-Maturity Securities [Abstract] Available-For-Sale And Held-To-Maturity Securities [Abstract] Available for sale: Debt Securities, Available-for-sale [Abstract] Amortized Cost Debt Securities, Available-for-sale, Amortized Cost, Fiscal Year Maturity [Abstract] One Year or Less Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, within One Year, Amortized Cost More than One Year to Five Years Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after One Through Five Years, Amortized Cost More than Five Years to Ten Years Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Amortized Cost More than Ten Years Debt Securities, Available-for-sale, Allocated and Single Maturity Date, Maturity, after 10 Years, Amortized Cost Total Debt Securities, Available-for-sale, Amortized Cost Fair Value Debt Securities, Available-for-sale, Fair Value, Fiscal Year Maturity [Abstract] One Year or Less Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, within One Year, Fair Value More than One Year to Five Years Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after One Through Five Years, Fair Value More than Five Years to Ten Years Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Fair Value More than Ten Years Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after 10 Years, Fair Value Total Held to maturity: Debt Securities, Held-to-maturity, Fair Value to Amortized Cost [Abstract] Amortized Cost Debt Securities, Held-to-maturity, Maturity [Abstract] One Year or Less Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, within One Year, Amortized Cost More than One Year to Five Years Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, after One Through Five Years, Amortized Cost More than Five Years to Ten Years Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Amortized Cost More than Ten Years Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, after 10 Years, Amortized Cost Amortized Cost Debt Securities, Held-to-maturity Fair Value Debt Securities, Held-to-maturity, Maturity, Fair Value [Abstract] One Year or Less Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, within One Year, Fair Value More than One Year to Five Years Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, after One Through Five Years, Fair Value More than Five Years to Ten Years Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Fair Value More than Ten Years Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, after 10 Years, Fair Value Total Amortized Cost Available-for-sale and Held-to-maturity Securities, Amortized Cost [Abstract] Available-for-sale and Held-to-maturity Securities, Amortized Cost [Abstract] One Year or Less Available-for-sale And Held-to-maturity Securities, Debt Maturities, Next Twelve Months, Amortized Cost Basis Available-for-sale And Held-to-maturity Securities, Debt Maturities, Next Twelve Months, Amortized Cost Basis More than One Year to Five Years Available-for-sale And Held-to-maturity Securities, Debt Maturities, Year Two Through Five, Amortized Cost Basis Available-for-sale And Held-to-maturity Securities, Debt Maturities, Year Two Through Five, Amortized Cost Basis More than Five Years to Ten Years Available-for-sale And Held-to-maturity Securities, Debt Maturities, Year Six Through Ten, Amortized Cost Basis Available-for-sale And Held-to-maturity Securities, Debt Maturities, Year Six Through Ten, Amortized Cost Basis More than Ten Years Available-for-sale And Held-to-maturity Securities, Debt Maturities, after Ten Years, Amortized Cost Basis Available-for-sale And Held-to-maturity Securities, Debt Maturities, after Ten Years, Amortized Cost Basis Total Available-for-sale And Held-to-maturity Debt Securities, Amortized Cost Basis Available-for-sale And Held-to-maturity Debt Securities, Amortized Cost Basis Fair Value Available-for-sale and Held-to-maturity Securities, Fair Value [Abstract] Available-for-sale and Held-to-maturity Securities, Fair Value [Abstract] One Year or Less Available-for-sale And Held-to-maturity Securities, Debt Maturities, Next Twelve Months, Fair Value Available-for-sale And Held-to-maturity Securities, Debt Maturities, Next Twelve Months, Fair Value More than One Year to Five Years Available-for-sale And Held-to-maturity Securities, Debt Maturities, Year Two Through Five, Fair Value Available-for-sale And Held-to-maturity Securities, Debt Maturities, Year Two Through Five, Fair Value More than Five Years to Ten Years Available-for-sale And Held-to-maturity Securities, Debt Maturities, Year Six Through Ten, Fair Value Available-for-sale And Held-to-maturity Securities, Debt Maturities, Year Six Through Ten, Fair Value More than Ten Years Available-for-sale And Held-to-maturity Securities, Debt Maturities, after Ten Years, Fair Value Available-for-sale And Held-to-maturity Securities, Debt Maturities, after Ten Years, Fair Value Total Debt Securities, Available-for-sale and Held-to-maturity Revenue from Contract with Customer [Abstract] Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Adjustments for New Accounting Pronouncements [Axis] Adjustments for New Accounting Pronouncements [Axis] Type of Adoption [Domain] Type of Adoption [Domain] Within Scope Within Scope of Topic 606 [Member] Within Scope of Topic 606 [Member] Out of Scope Out of Scope of Topic 606 [Member] Out of Scope of Topic 606 [Member] Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] Interest income: Noninterest income: Total revenues Revenues Offsetting [Abstract] Balance Sheet Offsetting Balance Sheet Offsetting [Text Block] Balance Sheet Offsetting [Text Block] Offsetting Assets [Table] Offsetting Assets [Table] Hedging Designation [Axis] Hedging Designation [Axis] Hedging Designation [Domain] Hedging Designation [Domain] Not Designated as Hedging Instrument Not Designated as Hedging Instrument [Member] Offsetting Assets [Line Items] Offsetting Assets [Line Items] Financial assets: Derivative Asset [Abstract] Gross Amounts Recognized Derivative Asset, Fair Value, Gross Asset Gross Amounts Offset in the Consolidated Balance Sheets Derivative Asset, Fair Value, Gross Liability Net Amounts Presented in the Consolidated Balance Sheets Derivative Asset, Fair Value, Amount Not Offset Against Collateral Financial Instruments Derivative, Collateral, Obligation to Return Securities Cash Collateral Derivative, Collateral, Obligation to Return Cash Net Amount Derivative Asset, Securities Purchased under Agreements to Resell, Securities Borrowed, Offset Against Collateral, Net of Not Subject to Master Netting Arrangement, Policy Election Financial liabilities: Derivative Liability [Abstract] Gross Amounts Recognized Derivative Liability, Fair Value, Gross Liability Gross Amounts Offset in the Consolidated Balance Sheets Derivative Liability, Fair Value, Gross Asset Net Amounts Presented in the Consolidated Balance Sheets Derivative Liability, Fair Value, Amount Not Offset Against Collateral Financial Instruments Derivative, Collateral, Right to Reclaim Securities Cash Collateral Derivative, Collateral, Right to Reclaim Cash Net Amount Derivative Liability, Fair Value, Offset Against Collateral, Net of Not Subject to Master Netting Arrangement, Policy Election Subsequent Events [Abstract] Subsequent Event [Table] Subsequent Event [Table] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Subsequent Event Subsequent Event [Member] Debt Instrument [Axis] Debt Instrument [Axis] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Subordinated Notes, 4.875%, Due May 15, 2029 Subordinated Notes, 4.875%, Due May 15, 2029 [Member] Subordinated Notes, 4.875%, Due May 15, 2029 [Member] Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] Subordinated Debentures Subordinated Debt [Member] Subsequent Event [Line Items] Subsequent Event [Line Items] Total shares repurchased (in shares) Stock Repurchased During Period, Shares Average price (usd per share) Stock Repurchased During Period, Average Cost Per Share Stock Repurchased During Period, Average Cost Per Share Total cost of repurchased shares Stock Repurchased During Period, Value Debt issued Debt Instrument, Face Amount Fixed interest rate (as a percent) Debt Instrument, Interest Rate, Stated Percentage Percentage of aggregate principal amount Public Offering Price, Aggregate Principal Amount, Percentage Public Offering Price, Aggregate Principal Amount, Percentage Proceeds from offering Proceeds from Issuance of Subordinated Long-term Debt Accretable yield on purchased credit impaired Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward] Balance at the beginning of period Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Additions Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield, Additions Accretion Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield, Accretion Payoffs Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Disposals and Other The sale or transfer or other adjustments of a loan during the period resulting in a reduction in the excess of a loan's cash flows expected to be collected over the investor's initial investment. This relates to loans not accounted for as a debt security, with evidence of deterioration of credit quality since origination that was 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. Sales Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Sales Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Sales Reclassification from nonaccretable difference Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Increase (Decrease) The increase (decrease) in 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 not accounted for as debt securities, with evidence of deterioration 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, due to the acquisition of similar loans not accounted for as debt securities during the period. Balance at the end of period Provision for Loan and Lease Losses [Abstract] Schedule of Financing Receivable, Allowance for Credit Losses [Table] Schedule of Financing Receivable, Allowance for Credit Losses [Table] Receivable Type [Axis] Receivable Type [Axis] Receivable [Domain] Receivable [Domain] Owner Occupied Commercial Real Estate Loans Commercial And Industrial Loans And Small Business Administration Loans Owner Occupied Commercial Real Estate Loans Commercial And Industrial Loans And Small Business Administration Loans [Member] Represents information pertaining to owner occupied commercial real estate loans, commercial and industrial loans and SBA loans. Allowance for Loan Losses Financing Receivable, Allowance for Credit Losses [Line Items] Period considered for comparison of allowance for loan losses factor (in years) Period One Considered for Comparison of Allowance for Loan Losses Factor Represents the period during which the charge-off data for all FDIC insured commercial banks and saving institutions based in California are considered for comparison of the entity's allowance for loan losses factor. Period considered for comparison of entity's allowance for loan losses factor (in years) Period Two Considered for Comparison of Allowance for Loan Losses Factor Represents the period during which the charge-off data of all FDIC insured commercial banks and saving institutions based in California are considered for comparison of the entity's allowance for loan losses factor. Allocation of allowance as well as the activity in allowance Allowance for Loan and Lease Losses [Roll Forward] Balance, at the beginning of the period Loans and Leases Receivable, Allowance Charge-offs Allowance for Loan and Lease Losses, Write-offs Recoveries Allowance for Loan and Lease Loss, Recovery of Bad Debts Provisions for (reduction in) loan losses Provision for Loan and Lease Losses Balance, at the end of the period Other disclosures Loans and Leases Receivable, Other Information [Abstract] Amount of allowance attributed to: Specifically evaluated impaired loans Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment Amount of allowance attributed to: General portfolio allocation Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment Loans individually evaluated for impairment Financing Receivable, Individually Evaluated for Impairment Specific reserves to total loans individually evaluated for impairment Financing Receivable Individually Evaluated for Impairment Allowance for Credit Losses to Carrying Amount Percentage Represents the valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment expressed as a percentage of the balance of financing receivables that were individually evaluated for impairment. Loans collectively evaluated for impairment Financing Receivable, Collectively Evaluated for Impairment General reserves to total loans collectively evaluated for impairment Financing Receivable Collectively Evaluated for Impairment Allowance for Credit Losses to Carrying Amount Percentage Represents the valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment expressed as a percentage of the balance of financing receivables that were collectively evaluated for impairment. Gross loans, excluding loan receivable held for sale Loans Receivable Gross Excluding Loans Receivable Held For Sale, Net Loans Receivable Gross Excluding Loans Receivable Held For Sale, Net Total allowance to gross loans Loans and Leases Receivable Allowance to Gross Carrying Amount Percentage Represents the allowance to cover probable credit losses on loans and leases expressed as a percentage of balance of loans and leases held in portfolio before allowance. Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Loans Held for Investment Accounts, Notes, Loans and Financing Receivable [Line Items] Gross loans held for investment Loans Receivable Gross Excluding Loans Receivable Held For Sale Loans Receivable Gross Excluding Loans Receivable Held For Sale Deferred loan origination (fees)/costs and (discounts)/premiums, net Unamortized Loan Commitment and Origination Fees and Unamortized Discounts or Premiums Loans held for investment Loans and Leases Receivable, Net of Unaccreted Fair Value Purchase Discounts Loans and Leases Receivable, Net of Unaccreted Fair Value Purchase Discounts Allowance for loan losses Loans held for investment, net Loans and Leases Receivable, Net Amount Loans held for sale, at lower of cost or fair value Loans Receivable Held-for-sale, Net, Not Part of Disposal Group Unaccreted mark-to-market discount Loans Receivable Unaccreted Mark to Market Discount Adjustment resulting from changes in unaccreted market value to loan balance. Business Combinations [Abstract] Acquisitions Business Combination Disclosure [Text Block] Schedule of carrying amount and estimated fair value of financial instruments Fair Value, by Balance Sheet Grouping [Table Text Block] Schedule of Company's financial instruments measured at fair value on a recurring basis Fair Value, Assets Measured on Recurring Basis [Table Text Block] Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Business Acquisition [Axis] Business Acquisition [Axis] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Grandpoint Capital, Inc. Grandpoint Capital, Inc. [Member] Grandpoint Capital, Inc. [Member] Class of Stock [Axis] Class of Stock [Axis] Class of Stock [Domain] Class of Stock [Domain] Business Acquisition [Line Items] Business Acquisition [Line Items] Total assets acquired Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets Gross loans acquired Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Loans Receivable, Gross The amount of acquisition cost of a business combination allocated to loans. Total deposits acquired Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deposits The amount of acquisition cost of a business combination allocated to deposits assumed from the acquired entity. Equity issued, ratio Business Acquisition, Equity Interests Issued or Issuable Number of Shares Issued Ratio Business Acquisition, Equity Interests Issued or Issuable Number of Shares Issued Ratio Consideration paid Business Combination, Consideration Transferred Aggregate cash consideration payable Business Acquisition, Aggregate Cash For Fractional Shares and Consideration Payable Business Acquisition, Aggregate Cash For Fractional Shares and Consideration Payable Common stock issued as consideration (in shares) Business Acquisition, Equity Interest Issued or Issuable, Number of Shares Company's common stock value (usd per share) Business Acquisition, Equity Interest Issued or Issuable, Price Per Share Business Acquisition, Equity Interest Issued or Issuable, Price Per Share Goodwill Goodwill New Accounting Pronouncements and Changes in Accounting Principles [Abstract] New Accounting Pronouncements or Change in Accounting Principle [Table] New Accounting Pronouncements or Change in Accounting Principle [Table] 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] Operating lease liabilities Operating Lease, Liability Operating lease right of use assets Operating Lease, Right-of-Use Asset Cumulative adjustment not recorded Cumulative Effect Adjustment of New Accounting Principle in Period of Adoption, Amount Previously Recorded Cumulative Effect Adjustment of New Accounting Principle in Period of Adoption, Amount Previously Recorded Leases [Abstract] Leases Lessee, Operating Leases [Text Block] Schedule of Financing Receivable, Recorded Investment, Credit Quality Indicator [Table] Schedule of Financing Receivable, Recorded Investment, Credit Quality Indicator [Table] Internal Credit Assessment [Axis] Internal Credit Assessment [Axis] Internal Credit Assessment [Domain] Internal Credit Assessment [Domain] Pass Pass [Member] Special Mention Special Mention [Member] Substandard Substandard [Member] Doubtful Doubtful [Member] Credit Risk Grades Financing Receivable, Recorded Investment [Line Items] Gross loans Acquired Loans Acquired Loans [Member] Represents information pertaining to acquired loans. Business Acquisition [Line Items] Contractual amounts due Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Acquired During Period, Contractually Required Payments Receivable at Acquisition Cash flows not expected to be collected Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period Cash Flows Not Expected to be Collected at Acquisition Represents the investor's estimate, at acquisition, of the amount and timing of undiscounted principal, interest, and other cash flows not expected to be collected. Expected cash flows Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Acquired During Period, Cash Flows Expected to be Collected at Acquisition Interest component of expected cash flows Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period Interest Component of Cash Flows Expected to be Collected at Acquisition Represents the investor's estimate, at acquisition, of the amount and timing of interest on cash flows expected to be collected. Fair value of acquired loans Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Acquired During Period, at Acquisition, at Fair Value Statement of Financial Position [Abstract] ASSETS Assets [Abstract] Cash and due from banks Cash and Due from Banks Interest-bearing deposits with financial institutions Federal Funds Sold Cash and cash equivalents Cash, Cash Equivalents, and Federal Funds Sold Interest-bearing time deposits with financial institutions Time Deposits and Other Short-term Investments Time deposits in other financial institutions for relatively short periods of time and other short-term investments. Investments held-to-maturity, at amortized cost (fair value of $43,980 and $44,672 as of March 31, 2019 and December 31, 2018, respectively) FHLB, FRB and other stock, at cost Federal Home Loan and Federal Reserve Bank Stock Amortized Cost Represents the amount of Federal Home Loan Bank (FHLB) and Federal Reserve Bank stock at cost, net of adjustments. Loans held for sale, at lower of cost or fair value Loans held for investment Loans and Leases Receivable, Net of Deferred Income Allowance for loan losses Accrued interest receivable Other real estate owned Real Estate Acquired Through Foreclosure Premises and equipment Property, Plant and Equipment, Net Deferred income taxes, net Deferred Tax Assets, Net Bank owned life insurance Bank Owned Life Insurance Intangible assets Intangible Assets, Net (Excluding Goodwill) Other assets Other Assets Total assets Assets LIABILITIES AND STOCKHOLDERS’ EQUITY Liabilities and Equity [Abstract] LIABILITIES Liabilities [Abstract] Deposit accounts: Deposits [Abstract] Noninterest-bearing checking Noninterest-bearing Deposit Liabilities Interest-bearing: Interest-bearing Deposit Liabilities [Abstract] Checking Interest Bearing Deposit Checking Amount of interest-bearing domestic checking deposit liabilities. Money market/savings Deposits, Money Market Deposits Retail certificates of deposit Deposits, Retail Wholesale/brokered certificates of deposit Deposits, Wholesale Total interest-bearing Interest-bearing Deposit Liabilities Total deposits Deposits FHLB advances and other borrowings Federal Home Loan Bank Advances and Other Borrowings. This element includes the sum of Federal Home Loan Bank borrowings due plus the total carrying amount at the balance sheet date of other borrowings not otherwise specified in the taxonomy. Subordinated debentures Subordinated Debt Accrued expenses and other liabilities Accrued Liabilities and Other Liabilities Total liabilities Liabilities STOCKHOLDERS’ EQUITY Stockholders' Equity Attributable to Parent [Abstract] Preferred stock, $.01 par value; 1,000,000 authorized; none issued and outstanding Preferred Stock, Value, Issued Common stock, $.01 par value; 150,000,000 shares authorized at March 31, 2019 and December 31, 2018; 62,773,299 shares 62,480,755 shares issued and outstanding, respectively. Common Stock, Value, Issued Additional paid-in capital Additional Paid in Capital Retained earnings Retained Earnings (Accumulated Deficit) Accumulated other comprehensive income (loss) Accumulated Other Comprehensive Income (Loss), Net of Tax Total stockholders’ equity Total liabilities and stockholders’ equity Liabilities and Equity Servicing rights retained from guaranteed portion of SBA loans sold Servicing Asset Unpaid principal balance for loans and participations serviced for others Loans to Others Outstanding Balance Represents the outstanding balance, as of the balance sheet date, of loans serviced for others. Secured loans limit to one borrower Secured Loans to One Borrower Limit Represents the amount up to which the bank can provide loans on secured basis to one borrower as per current regulations. Unsecured loans limit to one borrower Unsecured Loans to One Borrower Limit Represents the amount up to which the bank can provide loans on unsecured basis to one borrower as per current regulations. Aggregate outstanding balance of loans to one borrower of secured credit Secured Loans to One Borrower, Outstanding Balance Represents the outstanding balance as of the balance sheet date of loans to one borrower of secured credit. Number of areas where the entity's credit quality is maintained and credit risk managed Financing Receivable, Credit Quality and Credit Risk Management, Area Number Represents the number of areas related to financing receivables where the entity's credit quality is maintained and credit risk managed. Number of Pass scale grades Financing Receivable, Credit Quality, Pass Grade Number Represents the number of subcategories established within pass grade to stratify risk associated with pass loans. Loans 90 days or more past due and still accruing Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing Investment in TDR Financing Receivable, Modifications, Post-Modification Recorded Investment Consumer mortgage loans collateralized by residential real estate, foreclosure proceedings in process Mortgage Loans in Process of Foreclosure, Amount Outstanding balance Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Commercial, Outstanding Balance Purchased credit impaired loans, nonaccrual status Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Nonaccrual Status, Carrying Amount, Net The recorded balance on nonaccrual status, net of any applicable reductions (for example, unamortized accretable yield and allowance for loan losses). This relates to loans not accounted for debt securities with evidence of deterioration 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. Accounting Policies [Abstract] Significant Accounting Policies Significant Accounting Policies [Text Block] 2019 Operating Leases, Future Minimum Payments Due, Next Twelve Months 2020 Operating Leases, Future Minimum Payments, Due in Two Years 2021 Operating Leases, Future Minimum Payments, Due in Three Years 2022 Operating Leases, Future Minimum Payments, Due in Four Years 2023 Operating Leases, Future Minimum Payments, Due in Five Years Thereafter Operating Leases, Future Minimum Payments, Due Thereafter Total Operating Leases, Future Minimum Payments Due Schedule of Derivative Instruments Schedule of Derivative Instruments [Table Text Block] Debt Disclosure [Abstract] Subordinated Debentures Debt Disclosure [Text Block] Earnings Per Share Earnings Per Share [Text Block] Schedule of components of loans held for investment Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Summary of loan portfolio by the Company's internal risk grading system Financing Receivable Credit Quality Indicators [Table Text Block] Schedule of delinquencies in the Company's loan portfolio Past Due Financing Receivables [Table Text Block] Summary of Company's investment in impaired loans Impaired Financing Receivables [Table Text Block] Summary of additional detail on components of impaired loans Schedule of Impaired Financing Receivables, Additional Disclosures [Table Text Block] Tabular disclosure of impaired financing receivables classified by nonaccrual and accrual status. Summary of Company's investment in purchased credit impaired loans Purchased Credit, Impaired Loans [Table Text Block] Tabular disclosure of the carrying amount of purchased credit impaired loans by loan classes. Summary of accretable yield on purchased credit impaired Schedule of Changes in Accretable Yield for Purchased Credit, Impaired Loans [Table Text Block] Tabular disclosure of changes in the accretable yield for purchased credit-impaired loans. On the acquisition date, the amount by which the undiscounted expected cash flows of the purchased credit impaired loans exceed the estimated fair value of the loan is the accretable yield. The accretable yield is measured at each financial reporting date and represents the difference between the remaining undiscounted expected cash flows and the current carrying value of the purchased credit impaired loan. Basic Net Income (Loss) Attributable to Parent [Abstract] Less: Earnings allocated to participating securities Undistributed Earnings (Loss) Allocated to Participating Securities, Basic Net income allocated to common stockholders Net Income (Loss) Available to Common Stockholders, Basic Weighted average common shares outstanding (in shares) Basic earnings per share (in dollars per share) Diluted Weighted Average Number of Shares Outstanding Reconciliation [Abstract] Net income allocated to common stockholders Diluted effect of share-based compensation (in shares) Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements Weighted average diluted common shares (in shares) Diluted earnings per share (in dollars per share) Specific reserve recorded on loan Number of loans with a specific reserve Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment, Number of Loans Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment, Number of Loans Principal balance of loan with specific reserve Impaired Financing Receivable, with Related Allowance, Recorded Investment Expense associated with the Company's leases Lease, Cost Operating lease expense Operating Lease, Cost Short-term lease expense Short-term Lease, Cost Derivative [Table] Derivative [Table] Derivative Instrument [Axis] Derivative Instrument [Axis] Derivative Contract [Domain] Derivative Contract [Domain] Interest rate swap contracts Interest Rate Swap [Member] Derivative [Line Items] Derivative [Line Items] Notional Derivative Asset, Notional Amount Derivative assets, fair value Derivative liabilities, fair value Schedule of amortized cost and estimated fair value of securities Summary Investment Holdings [Table Text Block] Schedule of number, fair value and gross unrealized holding losses of the Company's investment securities by investment category and length of time that the securities have been in a continuous loss position Schedule of Unrealized Loss on Investments [Table Text Block] Schedule of amortized cost and estimated fair value of investment securities available for sale by contractual maturity Investments Classified by Contractual Maturity Date [Table Text Block] Other comprehensive income, net of tax: Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract] Unrealized holding (loss)/gain on securities arising during the period, net of income taxes Other Comprehensive Income (Loss), Securities, Available-for-Sale, Unrealized Holding Gain (Loss) Arising During Period, after Tax Reclassification adjustment for net (gains) losses on sale of securities included in net income, net of income taxes Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax Other comprehensive income (loss), net of tax Comprehensive income, net of tax Comprehensive Income (Loss), Net of Tax, Attributable to Parent Operating leases Operating Lease Liabilities, Payments 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 Short-term leases Operating Lease Liabilities, Short-term, Payments Due [Abstract] Operating Lease Liabilities, Short-term, Payments Due [Abstract] 2019 Lessee, Operating Lease, Liability, Short-term, Payments, Due Next Twelve Months Lessee, Operating Lease, Liability, Short-term, Payments, Due Next Twelve Months 2020 Lessee, Operating Lease, Liability, Short-term, Payments, Due Year Two Lessee, Operating Lease, Liability, Short-term, Payments, Due Year Two 2021 Lessee, Operating Lease, Liability, Short-term, Payments, Due Year Three Lessee, Operating Lease, Liability, Short-term, Payments, Due Year Three 2022 Lessee, Operating Lease, Liability, Short-term, Payments, Due Year Four Lessee, Operating Lease, Liability, Short-term, Payments, Due Year Four 2023 Lessee, Operating Lease, Liability, Short-term, Payments, Due Year Five Lessee, Operating Lease, Liability, Short-term, Payments, Due Year Five Thereafter Lessee, Operating Lease, Liability, Short-term, Payments, Due after Year Five Lessee, Operating Lease, Liability, Short-term, Payments, Due after Year Five Total Lessee, Operating Lease, Liability, Short-term, Payments, Due Lessee, Operating Lease, Liability, Short-term, Payments, Due Total contractual base rents Operating Lease Liabilities, Contractual Base Rents, Payments Due [Abstract] Operating Lease Liabilities, Contractual Base Rents, Payments Due [Abstract] 2019 Lessee, Operating Lease, Liability, Contractual Base Rents, Payments, Due Next Twelve Months Lessee, Operating Lease, Liability, Contractual Base Rents, Payments, Due Next Twelve Months 2020 Lessee, Operating Lease, Liability, Contractual Base Rents, Payments, Due Year Two Lessee, Operating Lease, Liability, Contractual Base Rents, Payments, Due Year Two 2021 Lessee, Operating Lease, Liability, Contractual Base Rents, Payments, Due Year Three Lessee, Operating Lease, Liability, Contractual Base Rents, Payments, Due Year Three 2022 Lessee, Operating Lease, Liability, Contractual Base Rents, Payments, Due Year Four Lessee, Operating Lease, Liability, Contractual Base Rents, Payments, Due Year Four 2023 Lessee, Operating Lease, Liability, Contractual Base Rents, Payments, Due Year Five Lessee, Operating Lease, Liability, Contractual Base Rents, Payments, Due Year Five Thereafter Lessee, Operating Lease, Liability, Contractual Base Rents, Payments, Due after Year Five Lessee, Operating Lease, Liability, Contractual Base Rents, Payments, Due after Year Five Total Lessee, Operating Lease, Liability, Contractual Base Rents, Payments, Due Lessee, Operating Lease, Liability, Contractual Base Rents, Payments, Due Total liability to make lease payments Operating Lease, Long-term and Short-term, Liability Operating Lease, Long-term and Short-term, Liability Difference in undiscounted and discounted future lease payments Lessee, Operating Lease, Long-term and Short-term, Liability, Undiscounted Excess Amount Lessee, Operating Lease, Long-term and Short-term, Liability, Undiscounted Excess Amount Weighted average discount rate Operating Lease, Weighted Average Discount Rate, Percent Weighted average remaining lease term (years) Operating Lease, Weighted Average Remaining Lease Term Investment securities available-for-sale: Debt Securities, Available-for-sale, Unrealized Loss Position [Abstract] Less than 12 Months Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Number of Positions [Abstract] Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Number of Positions [Abstract] Number Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Number of Positions Fair Value Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months Gross Unrealized Holding Losses Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss 12 Months or Longer Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions [Abstract] Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions [Abstract] Number Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions Fair Value Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer Gross Unrealized Holding Losses Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss Total Number Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions Fair Value Debt Securities, Available-for-sale, Unrealized Loss Position Gross Unrealized Holding Losses Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss Held-to-maturity, less than 12 months, number of securities Held-to-maturity, Securities in Unrealized Loss Positions, Less Than Twelve Months, Qualitative Disclosure, Number of Positions Held-to-maturity, Securities in Unrealized Loss Positions, Less Than Twelve Months, Qualitative Disclosure, Number of Positions Held-to-maturity, less than 12 months, fair value Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value Held-to-maturity, less than 12 months, gross unrealized holding losses Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss Held-to-maturity, 12 months or longer, number of securities Held-to-maturity, Securities in Unrealized Loss Positions, Twelve Months Or Longer Qualitative Disclosure, Number of Positions Held-to-maturity, Securities in Unrealized Loss Positions, Twelve Months Or Longer Qualitative Disclosure, Number of Positions Held-to-maturity, 12 months or longer, fair value Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value Held-to-maturity, 12 months or longer, gross unrealized holding losses Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss Held-to-maturity, number of securities Held-to-maturity, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions Held-to-maturity securities, fair value Debt Securities, Held-to-maturity, Unrealized Loss Position, Fair Value Unrealized Loss Debt Securities, Held-to-maturity, Unrealized Loss Position, Accumulated Loss Total securities, less than 12 months, number of securities Available-for-sale And Held-to-maturity, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Less than One Year Available-for-sale And Held-to-maturity, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Less than One Year Total securities, less than 12 months, fair value Available-for-sale Securities And Held-to-maturity, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value Available-for-sale Securities And Held-to-maturity, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value Total securities, less than 12 months, gross unrealized holding losses Available-for-sale Securities And Held-To-Maturity, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss Available-for-sale Securities And Held-To-Maturity, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss Total securities, 12 months or longer, number of securities Available-for-sale And Held-to-maturity, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Greater than or Equal to One Year Available-for-sale And Held-to-maturity, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Greater than or Equal to One Year Total securities, 12 months or longer, fair value Available-for-sale Securities And Held-to-maturity, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value Available-for-sale Securities And Held-to-maturity, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value Total securities, 12 months or longer, gross unrealized holding losses Available-for-sale Securities And Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss Available-for-sale Securities And Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss Total securities, number of securities Available-for-sale And Held-to-maturity, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions Available-for-sale And Held-to-maturity, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions Total securities, fair value Available-for-sale Securities And Held-to-Maturity, Continuous Unrealized Loss Position, Fair Value Available-for-sale Securities And Held-to-Maturity, Continuous Unrealized Loss Position, Fair Value Total securities, gross unrealized holding losses Available-for-sale Securities And Held-to-maturity, Continuous Unrealized Loss Position, Accumulated Loss Available-for-sale Securities And Held-to-maturity, Continuous Unrealized Loss Position, Accumulated Loss Allowance for Loan Losses Allowance for Credit Losses [Text Block] Summary of allocation of the allowance as well as the activity in the allowance attributed to various segments in the loan portfolio Allowance for Credit Losses on Financing Receivables [Table Text Block] Schedule of assets acquired and liabilities assumed and the provisional fair value adjustments and amounts recorded Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block] Schedule of contractual amounts due, expected cash flows to be collected, interest component and fair value as of the respective acquisition dates Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Table Text Block] Summary of pro forma net interest and other income, net income and earnings per share Business Acquisition, Pro Forma Information [Table Text Block] Revenue Recognition Revenue from Contract with Customer [Text Block] Schedule of Supplemental Information Assets and Liabilities, Lessee [Table Text Block] Assets and Liabilities, Lessee [Table Text Block] Schedule of Minimum Contractual Lease Payments and Other Information Lessee, Operating Lease, Liability, Maturity [Table Text Block] Schedule of Information Related to Minimum Contractual Lease Payments Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block] Subsequent Events Subsequent Events [Text Block] Recently Issued Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Revenue Recognition Revenue from Contract with Customer [Policy Text Block] Goodwill and Core Deposit Intangible Goodwill and Intangible Assets, Policy [Policy Text Block] Use of Estimates Use of Estimates, Policy [Policy Text Block] Fair Value Measurement Fair Value Measurement, Policy [Policy Text Block] Recently Issued Accounting Pronouncements New Accounting Pronouncements and Changes in Accounting Principles [Text Block] Other Other Debt Obligations [Member] Unrealized Gain Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax Unrealized Loss Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax Estimated Fair Value Unrealized Gain Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain Unrealized Loss Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss Estimated Fair Value Total investment securities Amortized Cost Investments Unrealized Gain Available-for-sale Securities And Held-To-Maturity Securities, Accumulated Gross Unrealized Gain, before Tax Available-for-sale Securities And Held-To-Maturity Securities, Accumulated Gross Unrealized Gain, before Tax Unrealized Loss Available-for-sale Securities And Held-To-Maturity Securities, Accumulated Gross Unrealized Loss, before Tax Available-for-sale Securities And Held-To-Maturity Securities, Accumulated Gross Unrealized Loss, before Tax Estimated Fair Value Investments, Fair Value Disclosure Schedule of Company's unaudited earnings per share calculations Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Notes Subordinated Notes5.75 Percent Due2024 [Member] Represents information pertaining to 5.75% Subordinated Notes Due 2024. Subordinated Notes 7.125% Subordinated Notes 7.125%, Due 2025 [Member] Subordinated Notes 7.125%, Due 2025 [Member] Legal Entity [Axis] Legal Entity [Axis] Entity [Domain] Entity [Domain] PPBI Trust I P P B I Trust I [Member] Represents information pertaining to PPBI Trust I, a statutory trust created under the laws of the State of Delaware. Variable Rate [Axis] Variable Rate [Axis] Variable Rate [Domain] Variable Rate [Domain] LIBOR London Interbank Offered Rate (LIBOR) [Member] Heritage Oaks Bancorp Heritage Oaks Bancorp [Member] Heritage Oaks Bancorp [Member] Plaza Bancorp Plaza Bancorp [Member] Plaza Bancorp [Member] Counterparty Name [Axis] Counterparty Name [Axis] Counterparty Name [Domain] Counterparty Name [Domain] Mission Community Capital Trust I Mission Community Capital Trust I [Member] Mission Community Capital Trust I [Member] Santa Lucia Bancorp (CA) Capital Trust Santa Lucia Bancorp (CA) Capital Trust [Member] Santa Lucia Bancorp (CA) Capital Trust [Member] Subordinated Debentures Debt Instrument [Line Items] Contribution of net proceeds from the Private Placement to the Bank to support general corporate purposes Contribution To Support General Corporate Purposes Represents the amount of contribution to support general corporate purposes. Unamortized debt issuance cost Debt Issuance Costs, Gross Floating interest rate, basis points added to base rate (as a percent) Debt Instrument, Basis Spread on Variable Rate Effective rate (as a percent) Debt Instrument, Interest Rate, Effective Percentage Minority interest purchased (as a percent) Ownership Interest Purchased Percentage Represents the minority interest percentage purchased during the period. Amount of minority interest purchased Ownership Interest Purchased Represents the value of minority interest purchased during the period. Floating Rate Trust Preferred Securities issue amount Payments to Acquire Trust Preferred Investments Floating rate junior subordinated debt Junior Subordinated Notes Purchase accounting fair value adjustments Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Financial Liabilities Number of subordinated notes assumed Number of Subordinated Notes Assumed Number of Subordinated Notes Assumed Debt assumed in acquisition Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt Redemption price (as a percent) Debt Instrument, Redemption Price, Percentage Redemption price, subsequent reduction (as a percent) Debt Instrument, Redemption Price, Subsequent Reduction, Percentage Debt Instrument, Redemption Price, Subsequent Reduction, Percentage Schedule of Impaired Financing Receivable [Table] Schedule of Impaired Financing Receivable [Table] Impaired Loans Financing Receivable, Impaired [Line Items] Unpaid Principal Balance Impaired Financing Receivable, Unpaid Principal Balance With Specific Allowance Without Specific Allowance Impaired Financing Receivable, with No Related Allowance, Recorded Investment Specific Allowance for Impaired Loans Average Recorded Investment Impaired Financing Receivable, Average Recorded Investment Interest Income Recognized Impaired Financing Receivable, Interest Income, Accrual Method Operating cash flows from operating leases Operating Lease, Payments Organization, Consolidation and Presentation of Financial Statements [Abstract] Basis of Presentation Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Investments held-to-maturity, fair value Preferred stock, par value (in dollars per share) Preferred Stock, Par or Stated Value Per Share Preferred stock, shares authorized (in shares) Preferred Stock, Shares Authorized Preferred stock, shares outstanding (in shares) Preferred Stock, Shares Outstanding Preferred stock, shares issued (in shares) Preferred Stock, Shares Issued 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 outstanding (in shares) Common Stock, Shares, Outstanding Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Core Deposits Core Deposits [Member] Range [Axis] Range [Axis] Range [Domain] Range [Domain] Minimum Minimum [Member] Maximum Maximum [Member] Weighted average useful life (in years) Acquired Finite-lived Intangible Assets, Weighted Average Useful Life Offsetting Assets and Liabilities Offsetting Assets and Liabilities [Table Text Block] Offsetting Assets and Liabilities [Table Text Block] HOA Home Owners Association Loans [Member] Represents information pertaining to Home Owners' Association (HOA) Banking and Lending unit. Accumulated other comprehensive income (loss) before tax amount Accumulated Other Comprehensive Income (Loss) before Tax Amount Represents the amount of accumulated change in equity from transactions and other events and circumstances from non-owner sources, before tax effect, at period end. Accumulated other comprehensive income (loss), net of tax Estimated par value of securities pledged as collateral for the Bank's inverse putable reverse repurchases Available For Sale Securities Pledged as Collateral Estimated Par Value Represents the estimated par value of available-for-sale securities that serve as collateral for borrowings. Fair value of securities pledged as collateral for the Bank's inverse putable reverse repurchases Available For Sale Securities Pledged as Collateral Fair Value Represents the fair value of available-for-sale securities that serve as collateral for borrowings. Value of inverse putable reverse repurchases secured by collateral Securities Sold under Agreements to Repurchase Securities Sold under Agreements to Repurchase, Average Balance Securities Sold under Agreements to Repurchase, Average Balance Securities Sold under Agreements to Repurchase, Average Balance Gross gains Debt Securities, Available-for-sale, Realized Gain Gross losses Debt Securities, Available-for-sale, Realized Loss Proceeds from available-for-sale securities Proceeds from Sale of Debt Securities, Available-for-sale FHLB stock Federal Home Loan Bank Stock FRB stock Federal Reserve Bank Stock Other stock Stock Other than Federal Home Loan Bank and Federal Reserve Bank Stock Represents the amount of stock other than Federal Home Loan Bank stock and Federal Reserve Bank stock. Amount of stock repurchased by FHLB Proceeds from Sale of Federal Home Loan Bank Stock Summary of Company's Revenue Streams Disaggregation of Revenue [Table Text Block] ASSETS ACQUIRED Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets [Abstract] Cash and cash equivalents Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents Investment securities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Marketable Securities Loans, gross Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Gross Loans Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Gross Loans Allowance for loan losses Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Allowance for Loan Losses Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Allowance for Loan Losses Fixed assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment Core deposit intangible Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill Deferred tax assets Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Assets Other assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets Total assets acquired LIABILITIES ASSUMED Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities [Abstract] Deposits Borrowings Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Long-term Debt Other Liabilities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other Total liabilities assumed Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities Excess of assets acquired over liabilities assumed Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net Goodwill recognized Fair Value Adjustments Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustments [Abstract] Cash and cash equivalents Business Combination, Provisional Accounting, Initial Accounting Incomplete, Adjustment, Cash and Equivalents Business Combination, Provisional Accounting, Initial Accounting Incomplete, Adjustment, Cash and Equivalents Investment securities Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Current Assets, Marketable Securities Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Current Assets, Marketable Securities Loans, gross Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Loans Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Loans Allowance for loan losses Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Allowance for Loan Losses Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Allowance for Loan Losses Fixed assets Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Property, Plant, and Equipment Core deposit intangible Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Intangibles Deferred tax assets Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Deferred Tax Assets Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Deferred Tax Assets Other assets Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Other Noncurrent Assets Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Other Noncurrent Assets Total assets acquired Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Assets Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Assets Deposits Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Deposits Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Deposits Borrowings Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Current Liabilities, Long-term Debt Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Current Liabilities, Long-term Debt Other Liabilities Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Noncurrent Liabilities, Other Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Noncurrent Liabilities, Other Total liabilities assumed Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Liabilities Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Liabilities Excess of assets acquired over liabilities assumed Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net Acquired Banks Acquired Banks [Member] Acquired Banks [Member] Net interest and other income Business Acquisitions Pro Forma Net Interest and Other Income The pro forma net interest and other income for the period as if the business combination or combinations had been completed at the beginning of a period. Net income Business Acquisition, Pro Forma Net Income (Loss) Basic earnings per share (in dollars per share) Business Acquisition, Pro Forma Earnings Per Share, Basic Diluted earnings per share (in dollars per share) Business Acquisition, Pro Forma Earnings Per Share, Diluted