Subsequent Events [Abstract] Subsequent Event [Table] Subsequent Event [Table] Business Acquisition [Axis] Business Acquisition [Axis] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Wallboard Wallboard [Member] Wallboard [Member] The Supply Guy, Inc. The Supply Guy, Inc. [Member] The Supply Guy, Inc. [Member] Geographical [Axis] Geographical [Axis] Geographical [Domain] Geographical [Domain] Colorado COLORADO Subsequent Event Type [Axis] Subsequent Event Type [Axis] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Subsequent Event Subsequent Event [Member] Subsequent Event [Line Items] Subsequent Event [Line Items] Number of branch locations Number of Branch Locations Number of Branch Locations Organization, Consolidation and Presentation of Financial Statements [Abstract] Business and Basis of Presentation Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Leases [Abstract] 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 Future minimum payments due Operating Leases, Future Minimum Payments Due Equity [Abstract] Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Table] Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Foreign Currency Translation (Losses) Gains Accumulated Foreign Currency Adjustment Attributable to Parent [Member] Unrealized Gain (Loss) on Derivatives, Net of Taxes Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member] AOCI Attributable to Parent AOCI Attributable to Parent [Member] Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive Income (Loss) [Line Items] AOCI Attributable to Parent, Net of Tax [Roll Forward] AOCI Attributable to Parent, Net of Tax [Roll Forward] Beginning balance Stockholders' Equity Attributable to Parent Other comprehensive income (loss) Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Ending balance Income Tax Disclosure [Abstract] Income Taxes Income Tax Disclosure [Text Block] Other Liabilities Disclosure [Abstract] Accrued expenses Accrued Liabilities, Current Accrued interest Interest Payable, Current Accrued other Other Accrued Liabilities, Current Total other current liabilities Other Liabilities, Current Goodwill and Intangible Assets Disclosure [Abstract] Schedule of Finite-Lived Intangible Assets [Table] Schedule of Finite-Lived Intangible Assets [Table] 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] Tradenames Trade Names [Member] Customer relationships Customer Relationships [Member] Other intangible assets Other Intangible Assets [Member] Finite-Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] Gross Carrying Amount Finite-Lived Intangible Assets, Gross Accumulated Amortization Finite-Lived Intangible Assets, Accumulated Amortization Net Carrying Amount Finite-Lived Intangible Assets, Net Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivatives and Hedging Activities Derivative Instruments and Hedging Activities Disclosure [Text Block] Discontinued Operations and Disposal Groups [Abstract] Disposal Groups, Including Discontinued Operations [Table] Disposal Groups, Including Discontinued Operations [Table] Disposal Group Classification [Axis] Disposal Group Classification [Axis] Disposal Group Classification [Domain] Disposal Group Classification [Domain] Discontinued Operations, Disposed of by Sale Discontinued Operations, Disposed of by Sale [Member] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Total cash consideration Disposal Group, Including Discontinued Operation, Consideration Gain (loss) on sale of discontinued operations, net of tax Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax Net sales Disposal Group, Including Discontinued Operation, Revenue Cost of goods sold Disposal Group, Including Discontinued Operation, Costs of Goods Sold Gross profit Disposal Group, Including Discontinued Operation, Gross Profit (Loss) Operating expenses: Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract] Selling, general and administrative expenses Disposal Group, Including Discontinued Operation, General and Administrative Expense Depreciation and amortization Disposal Group, Including Discontinued Operation, Depreciation and Amortization Total operating expenses Disposal Group, Including Discontinued Operation, Operating Expense Income from operations Disposal Group, Including Discontinued Operation, Operating Income (Loss) Interest expense Disposal Group, Including Discontinued Operation, Interest Expense Other income (expense), net Disposal Group, Including Discontinued Operation, Other (Expense) Income, Net Disposal Group, Including Discontinued Operation, Other (Expense) Income, Net Income from discontinued operations before income taxes Discontinued Operation, Income (Loss) from Discontinued Operation During Phase-out Period, before Income Tax Income tax expense Discontinued Operation, Tax Effect of Discontinued Operation Net income from discontinued operations, net of tax Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest Accounting Policies [Abstract] Recently Adopted and Issued Accounting Standards Significant Accounting Policies [Text Block] Debt Disclosure [Abstract] Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Balance Sheet Location [Axis] Balance Sheet Location [Axis] Balance Sheet Location [Domain] Balance Sheet Location [Domain] Notes Payable, Noncurrent Notes Payable, Noncurrent [Member] Notes Payable, Noncurrent [Member] Other Long-term Assets Other Long-term Assets [Member] Other Long-term Assets [Member] Credit Facility [Axis] Credit Facility [Axis] Credit Facility [Domain] Credit Facility [Domain] Letter of Credit Letter of Credit [Member] Revolving Credit Facility Revolving Credit Facility [Member] Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] Senior Notes Senior Notes [Member] Line of Credit Line of Credit [Member] Debt Instrument [Axis] Debt Instrument [Axis] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] 2018 Term Loan Facility Two Thousand And Eighteen Term Loan Facility [Member] Two Thousand And Eighteen Term Loan Facility [Member] 2018 U.S. Revolving Credit Facility Two Thousand And Eighteen U.S. Revolving Credit Facility [Member] Two Thousand And Eighteen U.S. Revolving Credit Facility [Member] 2018 Canadian Revolving Credit Subfacility Two Thousand And Eighteen Canadian Revolving Credit Subfacility [Member] Two Thousand And Eighteen Canadian Revolving Credit Subfacility [Member] 2018 FILO Facility Two Thousand And Eighteen FILO Facility [Member] Two Thousand And Eighteen FILO Facility [Member] 2018 ABL Credit Facility Two Thousand And Eighteen ABL Credit Facility [Member] Two Thousand And Eighteen ABL Credit Facility [Member] 2016 ABL Credit Facility Two Thousand And Sixteen ABL Credit Facility [Member] Two Thousand And Sixteen ABL Credit Facility [Member] Variable Rate [Axis] Variable Rate [Axis] Variable Rate [Domain] Variable Rate [Domain] London Interbank Offered Rate (LIBOR) London Interbank Offered Rate (LIBOR) [Member] LIBOR Applicable Margin Rate LIBOR Applicable Margin Rate [Member] LIBOR Applicable Margin Rate [Member] Federal Funds Effective Swap Rate Fed Funds Effective Rate Overnight Index Swap Rate [Member] Base Rate Base Rate [Member] Base Rate Applicable Margin Rate Base Rate Applicable Margin Rate [Member] Base Rate Applicable Margin Rate [Member] Alternate Base Rate Or Canadian Prime Rate, Plus An Applicable Margin Alternate Base Rate Or Canadian Prime Rate, Plus An Applicable Margin [Member] Alternate Base Rate Or Canadian Prime Rate, Plus An Applicable Margin [Member] LIBOR Or Canadian CDOR Rate Plus An Applicable Margin London Interbank Offered Rate (“LIBOR”) Or Canadian CDOR Rate Plus An Applicable Margin [Member] London Interbank Offered Rate (“LIBOR”) Or Canadian CDOR Rate Plus An Applicable Margin [Member] Statistical Measurement [Axis] Statistical Measurement [Axis] Statistical Measurement [Domain] Statistical Measurement [Domain] Minimum Minimum [Member] Maximum Maximum [Member] Debt Instrument [Line Items] Debt Instrument [Line Items] Debt instrument, face amount Debt Instrument, Face Amount Basis spread on variable rate Debt Instrument, Basis Spread on Variable Rate First lien net leverage ratio Debt Instrument, First Lien Net Leverage Ratio Debt Instrument, First Lien Net Leverage Ratio Percentage of scheduled quarterly payments Debt Instrument, Percentage Of Scheduled Quarterly Payments To be Made Debt Instrument, Percentage Of Scheduled Quarterly Payments To be Made Period of closing date for initial term loan Debt Instrument, Period Of Closing Date For Initial Term Loan Debt Instrument, Period Of Closing Date For Initial Term Loan Maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Terminated debt amount Debt Instrument, Repurchased Face Amount Percentage of eligible trade accounts Debt Instrument, Percentage Of Eligible Trade Accounts Debt Instrument, Percentage Of Eligible Trade Accounts Percentage of eligible credit card accounts Debt Instrument, Percentage Of Eligible Credit Card Accounts Debt Instrument, Percentage Of Eligible Credit Card Accounts Percentage of eligible inventory Debt Instrument, Percentage Of Eligible Inventory Debt Instrument, Percentage Of Eligible Inventory Percentage of net orderly liquidation value of eligible inventory Debt Instrument, Percentage Of Net Orderly Liquidation Value Of Eligible Inventory Debt Instrument, Percentage Of Net Orderly Liquidation Value Of Eligible Inventory Percentage of net orderly liquidation value of eligible qualifying equipment Debt Instrument, Percentage Of Net Orderly Liquidation Value Of Eligible Qualifying Equipment Debt Instrument, Percentage Of Net Orderly Liquidation Value Of Eligible Qualifying Equipment Percentage of capped loan limit of eligible qualifying equipment Debt Instrument, Percentage Of Capped Loan Limit Of Eligible Qualifying Equipment Debt Instrument, Percentage Of Capped Loan Limit Of Eligible Qualifying Equipment Commitment fee percentage Line of Credit Facility, Commitment Fee Percentage Total net leverage ratio (not more than) Debt Instrument, Total Net Leverage Ratio Debt Instrument, Total Net Leverage Ratio Remaining borrowing capacity Line of Credit Facility, Remaining Borrowing Capacity Weighted average interest rate Line of Credit Facility, Interest Rate During Period Deferred financing cost expensed Amortization of Debt Issuance Costs Long-term debt, gross Long-term Debt, Gross Redemption price, percentage Debt Instrument, Redemption Price, Percentage Percentage of issue price of a private placement Debt Instrument, Percentage Of Issue Price Of A Private Placement Debt Instrument, Percentage Of Issue Price Of A Private Placement Interest rate, stated percentage Debt Instrument, Interest Rate, Stated Percentage Unamortized debt issuance costs Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net Revolving asset-based credit facility Debt Issuance Costs, Net Goodwill and Intangible Assets Goodwill Disclosure [Text Block] Subsequent Events Subsequent Events [Text Block] Income Statement [Abstract] Net sales Revenue from Contract with Customer, Excluding Assessed Tax Cost of goods sold Cost of Goods and Services Sold Gross profit Gross Profit Operating expenses: Operating Expenses [Abstract] Selling, general and administrative expenses Selling, General and Administrative Expense Depreciation and amortization Depreciation, Depletion and Amortization, Nonproduction Total operating expenses Operating Expenses Income from operations Operating Income (Loss) Loss on extinguishment of debt Gain (Loss) on Extinguishment of Debt Interest expense Interest Expense Other (expense) income, net Other Nonoperating Income (Expense) Income (loss) before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Income tax expense (benefit) Income Tax Expense (Benefit) Income (loss) from continuing operations Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent Income from discontinued operations, net of tax Loss on sale of discontinued operations, net of tax Net income (loss) Net Income (Loss) Attributable to Parent Earnings (loss) per share data: Earnings Per Share, Basic and Diluted [Abstract] Earnings (Loss) from continuing operations per share - basic (in dollars per share) Income (Loss) from Continuing Operations, Per Basic Share Earnings (Loss) from continuing operations per share - diluted (in dollars per share) Income (Loss) from Continuing Operations, Per Diluted Share Earnings (loss) earnings from discontinued operations per share - basic (in dollars per share) Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Basic Share Earnings (loss) earnings from discontinued operations per share - diluted (in dollars per share) Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Diluted Share Earnings per share - basic (in dollars per share) Earnings Per Share, Basic Earnings per share - diluted (in dollars per share) Earnings Per Share, Diluted Weighted average shares outstanding: Earnings Per Share, Basic and Diluted, Other Disclosures [Abstract] Basic (in shares) Weighted Average Number of Shares Outstanding, Basic Diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Comprehensive income (loss): Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract] Foreign currency translation adjustment Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent Unrealized gain (loss) on derivatives, net of taxes of $0.1 million and $2.2 million respectively Other Comprehensive Income (Loss), Derivative, Excluded Component, Increase (Decrease), after Adjustments and Tax, Parent Unrealized gain (loss) on derivatives, net of taxes of $0.5 million and $0.5 million, respectively, before 2017-12 adoption Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax, Portion Attributable to Parent Total other comprehensive (loss) income Total comprehensive income (loss) Comprehensive Income (Loss), Net of Tax, Attributable to Parent Segment Reporting [Abstract] Schedule of Reconciliation of Operating Profit (Loss) from Segments to Consolidated Schedule of Segment Reporting Information, by Segment [Table Text Block] Schedule of Revenue from External Customers by Products and Services Revenue from External Customers by Products and Services [Table Text Block] 2018 Revolving Credit Facility Long-term debt, gross Unamortized deferred financing and issuance costs - term loan Long-term debt Long-term Debt Long-Term Debt Debt Disclosure [Text Block] Number of employees (more than) Entity Number of Employees Number of branch locations (more than) Summary Of Significant Accounting Policies [Table] Summary Of Significant Accounting Policies [Table] Summary Of Significant Accounting Policies [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] Summary Of Significant Accounting Policies [Line Items] Summary Of Significant Accounting Policies [Line Items] [Line Items] for Summary Of Significant Accounting Policies [Table] Operating lease liability Operating Lease, Liability Right-of-use asset Operating Lease, Right-of-Use Asset Business Combinations [Abstract] Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Select and BSL Select And Builders' Supplies Limited II [Member] Select And Builders' Supplies Limited II [Member] Business Acquisition [Line Items] Business Acquisition [Line Items] Assets acquired: Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets [Abstract] Cash Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents Accounts receivable Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables Other receivables Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Other Inventories Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory Prepaid and other current assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Prepaid Expense and Other Assets Property and equipment Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment Goodwill Goodwill Intangible assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill Total assets acquired Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets Liabilities assumed: Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities [Abstract] Accounts payable Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable Accrued expenses and other current liabilities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Accrued Expenses and Other Current Liabilities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Accrued Expenses and Other Current Liabilities Total liabilities assumed Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities Total net assets acquired Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net Earnings Per Share [Abstract] Earnings (Loss) Per Share Earnings Per Share [Text Block] Number of reportable segments Number of Reportable Segments Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Sales Revenue, Net Revenue Benchmark [Member] Concentration Risk Type [Axis] Concentration Risk Type [Axis] Concentration Risk Type [Domain] Concentration Risk Type [Domain] Geographic Concentration Risk Geographic Concentration Risk [Member] United States UNITED STATES Canada CANADA Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Concentration risk, percentage Concentration Risk, Percentage Segments Segment Reporting Disclosure [Text Block] United States Canada Total property, plant and equipment, net Property, Plant and Equipment, Net Right-of-use assets, net Intangibles, net Intangible Assets, Net (Excluding Goodwill) Other Current Liabilities Other Liabilities Disclosure [Text Block] Statement of Financial Position [Abstract] Current assets: Assets [Abstract] Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Accounts receivable—net of allowance for doubtful accounts of $3,678 and $3,239, respectively Accounts Receivable, after Allowance for Credit Loss, Current Other receivables Accounts and Other Receivables, Net, Current Inventories Inventory, Net Prepaid expenses and other current assets Prepaid Expense and Other Assets, Current Total current assets Assets, Current Property and equipment, net Intangible assets, net Goodwill Other assets Other Assets, Noncurrent Total assets Assets Liabilities and stockholders' equity: Liabilities and Equity [Abstract] Current liabilities: Liabilities, Current [Abstract] Accounts payable Accounts Payable, Current Accrued payroll and employee benefits Employee-related Liabilities, Current Accrued taxes Accrued Income Taxes, Current Current portion of tax receivable agreement Tax Receivable Agreement Tax Receivable Agreement Current portion of term loan, net Long-term Debt, Current Maturities Current portion of lease liabilities Operating And Finance Lease Liabilities, Current Operating And Finance Lease Liabilities, Current Other current liabilities Total current liabilities Liabilities, Current Asset-based revolving credit facility Long-term Line of Credit, Noncurrent Long-term portion of term loan, net Long-term Debt, Excluding Current Maturities Tax receivable agreement Tax Receivable Agreement, Noncurrent Liabilities Tax Receivable Agreement, Noncurrent Liabilities Deferred income taxes, net Deferred Income Tax Liabilities, Net Long-term portion of lease liabilities Operating And Finance Lease Liabilities, Noncurrent Operating And Finance Lease Liabilities, Noncurrent Other liabilities Other Liabilities, Noncurrent Total liabilities Liabilities Commitments and contingencies Commitments and Contingencies Stockholders' equity: Stockholders' Equity Attributable to Parent [Abstract] Preferred stock, $0.001 par value, authorized 10,000,000 shares; 0 shares issued Preferred Stock, Value, Issued Common stock, $0.001 par value, authorized 190,000,000 shares; 42,989,840 and 42,907,326 shares issued, respectively Common Stock, Value, Issued Additional paid-in capital Additional Paid in Capital, Common Stock Retained earnings Retained Earnings (Accumulated Deficit) Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Total stockholders' equity Total liabilities and stockholders' equity Liabilities and Equity Recently Adopted Accounting Standards New Accounting Pronouncements, Policy [Policy Text Block] Acquisitions Business Combination Disclosure [Text Block] Weighted average useful life Acquired Finite-lived Intangible Assets, Weighted Average Useful Life Income tax expense (benefit) Effective tax rate Effective Income Tax Rate Reconciliation, Percent Net of tax effect on unrealized gain (loss) on derivatives Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, before Tax, Parent Net of tax effect on unrealized gain (loss) on derivatives before 2017-12 adoption Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax, Portion Attributable to Parent Goodwill [Roll Forward] Goodwill [Roll Forward] Beginning balance Goodwill acquired Goodwill, Acquired During Period Purchase price allocation adjustments from prior periods Goodwill, Purchase Accounting Adjustments, Prior Period Goodwill, Purchase Accounting Adjustments, Prior Period Impact of foreign currency exchange rates Goodwill, Foreign Currency Translation Gain (Loss) Ending balance Schedule of Other Current Liabilities Other Current Liabilities [Table Text Block] Weighted average shares used in basic computations (in shares) Dilutive effect of stock options and restricted stock units (in shares) Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements Weighted average shares used in diluted computations (in shares) Antidilutive securities (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Schedule Of Operating And Finance Lease Liabilities Schedule Of Operating And Finance Leases [Table Text Block] Schedule Of Operating And Finance Leases Lease, Cost Lease, Cost [Table Text Block] Finance Lease, Liability, Maturity Finance Lease, Liability, Maturity [Table Text Block] Lessee, Operating Lease, Liability, Maturity Lessee, Operating Lease, Liability, Maturity [Table Text Block] Schedule of Future Minimum Rental Payments for Operating Leases Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block] Schedule of Notes Payable Schedule of Debt [Table Text Block] Commitments and Contingencies Disclosure [Abstract] Contingencies Contingencies Disclosure [Text Block] Operating leases: Operating Leases [Abstract] Operating Leases [Abstract] Lease cost Operating Lease, Cost Variable lease cost Variable Lease, Cost Operating lease cost Total Operating Lease Cost Total Operating Lease Cost Finance leases: Finance Lease, Cost Included in Property, Plant And Equipment [Abstract] Finance Lease, Cost Included in Property, Plant And Equipment [Abstract] Amortization of ROU assets Finance Lease, Right-of-Use Asset, Amortization Interest on lease liabilities Finance Lease, Interest Expense Finance lease cost Finance Lease Cost Finance Lease Cost Total lease cost Lease, Cost Cash paid for amounts included in the measurement of lease liabilities: Cash Paid For Amounts Included In lease Liability [Abstract] Cash Paid For Amounts Included In lease Liability [Abstract] Operating cash flows from operating leases Operating Lease, Payments Financing cash flows from finance leases Finance Lease, Principal Payments Right-of-use-assets obtained in exchange for lease obligations: Right-of-Use Asset [Abstract] Right-of-Use Asset [Abstract] Finance leases Right-of-Use Asset Obtained in Exchange for Finance Lease Liability Operating leases Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Operating Leases Weighted Average Operating Lease [Abstract] Weighted Average Operating Lease [Abstract] Weighted average remaining lease term (years) Operating Lease, Weighted Average Remaining Lease Term Weighted average discount rate Operating Lease, Weighted Average Discount Rate, Percent Finance Leases Weighted Average Finance Lease [Abstract] Weighted Average Finance Lease [Abstract] Weighted average remaining lease term (years) Finance Lease, Weighted Average Discount Rate, Percent Weighted average discount rate Finance Lease, Weighted Average Remaining Lease Term Schedule of Accumulated Other Comprehensive Loss Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Accumulated Other Comprehensive Loss Comprehensive Income (Loss) Note [Text Block] Number of renewal options Capital Leases, Number Of Renewal Options Capital Leases, Number Of Renewal Options Schedule of Operating Leased Assets [Table] Schedule of Operating Leased Assets [Table] Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Domain] Property, Plant and Equipment, Type [Domain] Real Estate Real Estate [Member] Vehicles and equipment Vehicle and Equipment [Member] Vehicle and Equipment [Member] Operating Leased Assets [Line Items] Operating Leased Assets [Line Items] Operating leases: Operating lease, right-of-use asset Operating Lease, Right-of-Use Asset, Gross Operating Lease, Right-of-Use Asset, Gross Operating lease, accumulated amortization Operating Lease, Accumulated Amortization Operating Lease, Accumulated Amortization Right-of-use asset Finance leases included in property and equipment, net: Vehicle and equipment ROU assets, gross Finance Lease Right Of Use Asset, Gross Finance Lease Right Of Use Asset, Gross Accumulated depreciation Finance Lease, Right-Of-Use Asset, Accumulated Amortization Finance Lease, Right-Of-Use Asset, Accumulated Amortization Total vehicle and equipment ROU assets, net Finance Lease, Right-of-Use Asset Total vehicle and equipment lease liability Finance Lease, Liability Income Tax Contingency [Table] Income Tax Contingency [Table] Scenario [Axis] Scenario [Axis] Scenario [Domain] Scenario [Domain] Forecast Forecast [Member] Income Tax Contingency [Line Items] Income Tax Contingency [Line Items] Tax receivable agreement, percentage of income taxes Tax Receivable Agreement, Federal, State, Local and Non-US Income Taxes, Percent Tax Receivable Agreement, Federal, State, Local and Non-US Income Taxes, Percent Liability for tax receivable agreement Liability For Tax Receivable Agreement Liability For Tax Receivable Agreement Reduction in tax receivable agreement liability Payments for Tax Receivable Agreement Liability Payments for Tax Receivable Agreement Liability Accounts receivable net of allowance for doubtful accounts Accounts Receivable, Allowance for Credit Loss, Current 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 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, Issued Tax Receivable Agreement Schedule of Recognized Identified Assets Acquired and Liabilities Assumed Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block] Derivative [Table] Derivative [Table] Other Comprehensive Loss Retained Earnings Retained Earnings [Member] Adoption of derivatives guidance Accounting Standards Update 2017-12 [Member] Hedging Designation [Axis] Hedging Designation [Axis] Hedging Designation [Domain] Hedging Designation [Domain] Designated as Hedging Instrument Designated as Hedging Instrument [Member] Derivative Instrument [Axis] Derivative Instrument [Axis] Derivative Contract [Domain] Derivative Contract [Domain] Interest Rate Swap Interest Rate Swap [Member] Foreign Exchange Contract Foreign Exchange Contract [Member] Other Noncurrent Liabilities Other Noncurrent Liabilities [Member] Other Noncurrent Assets Other Noncurrent Assets [Member] Derivative [Line Items] Derivative [Line Items] Number of interest rate swaps Number of Interest Rate Derivatives Held Notional foreign exchange contract outstanding Derivative, Notional Amount Variable interest rate Derivative, Variable Interest Rate Fair value asset of derivative instrument Derivative Asset, Fair Value, Gross Asset Gain (loss) on derivatives Gain (loss) related to change in fair value of net investment hedge Other Comprehensive Income (Loss), Derivative, Excluded Component, Increase (Decrease), after Adjustments, Tax, Parent Gain (loss) on derivatives, before 2017-12 adoption Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax Gain (loss) related to change in fair value of net investment hedge before 2017-12 adoption Cumulative effect of new accounting principle Cumulative Effect of New Accounting Principle in Period of Adoption Statement of Cash Flows [Abstract] Cash flows from operating activities: Net Cash Provided by (Used in) Operating Activities [Abstract] Net income (loss) Add: loss on sale of discontinued operations Less: net income from discontinued operations Net income (loss) from continuing operations Adjustments to reconcile net income (loss) to net cash provided by operating activities from continuing operations: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Depreciation Depreciation Amortization of intangible assets Amortization of Intangible Assets Amortization of debt issuance costs and debt discount Amortization of Debt Issuance Costs and Discounts Loss on extinguishment of debt Inventory fair value purchase accounting adjustment Inventory Write-down Provision for doubtful accounts Accounts Receivable, Credit Loss Expense (Reversal) Stock-based compensation Share-based Payment Arrangement, Noncash Expense Unrealized gain on derivative instruments, net Unrealized Gain (Loss) on Derivatives (Gain) loss on disposal of property and equipment Gain (Loss) on Disposition of Property Plant Equipment Right-of-use assets non-cash expense Increase (Decrease) In Operating Lease Liability, Right-of-Use Asset Increase (Decrease) In Operating Lease Liability, Right-of-Use Asset Deferred income taxes Deferred Income Tax Expense, Cash Flows Deferred Income Tax Expense, Cash Flows Change in assets and liabilities, net of effects of acquisitions: Increase (Decrease) in Operating Capital [Abstract] Accounts receivable Increase (Decrease) in Accounts Receivable Other receivables Increase (Decrease) in Other Receivables Inventories Increase (Decrease) in Inventories Prepaid expenses and other current assets Increase (Decrease) in Prepaid Expense and Other Assets Other assets Increase (Decrease) in Other Noncurrent Assets Accounts payable Increase (Decrease) in Accounts Payable Accrued payroll and employee benefits Increase (Decrease) in Employee Related Liabilities Accrued taxes Increase (Decrease) in Accrued Taxes Payable Operating lease liability Increase (Decrease) In Operating Lease Liability Increase (Decrease) In Operating Lease Liability Other liabilities Increase (Decrease) in Other Noncurrent Liabilities Net cash provided by (used in) operating activities from continuing operations Net Cash Provided by (Used in) Operating Activities, Continuing Operations Cash flows from investing activities from continuing operations: Net Cash Provided by (Used in) Investing Activities [Abstract] Purchases of property and equipment Payments to Acquire Property, Plant, and Equipment Proceeds from termination of net investment hedge Proceeds from Hedge, Investing Activities Proceeds from net working capital adjustments related to acquisitions Proceeds From Net Working Capital Adjustments Proceeds From Net Working Capital Adjustments Proceeds from the disposal of fixed assets Proceeds from Sale of Property, Plant, and Equipment Acquisitions, net of cash acquired Payments to Acquire Businesses, Net of Cash Acquired Net cash used in investing activities from continuing operations Net Cash Provided by (Used in) Investing Activities, Continuing Operations Cash flows from financing activities from continuing operations: Net Cash Provided by (Used in) Financing Activities [Abstract] Proceeds from asset-based revolving credit facility Proceeds From Asset-Based Credit Facility Proceeds From Asset-Based Credit Facility Repayments of asset-based revolving credit facility Repayments of Senior Debt Principal payments for term loan Repayments of Long-term Debt Term loan proceeds Proceeds from Issuance of Secured Debt Term loan original issuance discount and deferred finance costs Payments of Debt Issuance Costs Repayment of bond principal Repayments of Long-term Lines of Credit Prepayment premium on senior secured notes Repayments of Secured Debt Payment related to tax receivable agreement Tax withholding payment related to net settlement of equity awards Payment, Tax Withholding, Share-based Payment Arrangement Principal repayment of finance lease obligations Repayments of Long-term Capital Lease Obligations Net cash (used in) provided by financing activities from continuing operations Net Cash Provided by (Used in) Financing Activities, Continuing Operations Net cash used in operating activities from discontinued operations Cash Provided by (Used in) Operating Activities, Discontinued Operations Net cash used in investing activities from discontinued operations Cash Provided by (Used in) Investing Activities, Discontinued Operations Net cash used in financing activities of discontinued operations Cash Provided by (Used in) Financing Activities, Discontinued Operations Net cash used in discontinued operations Net Cash Provided by (Used in) Discontinued Operations Effect of exchange rate changes on cash Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations Net increase (decrease) in cash Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Cash and cash equivalents at beginning of period Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Cash and cash equivalents at end of period Supplemental disclosures of cash flow information: Supplemental Cash Flow Information [Abstract] Cash paid for income taxes Income Taxes Paid Cash paid for interest Interest Paid, Excluding Capitalized Interest, Operating Activities Supplemental disclosures of non-cash investing and financing activities: Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Change in fair value of derivatives, net of tax Increase (Decrease) In Fair Value Of Interest Rate Swaps Net Increase (Decrease) In Fair Value Of Interest Rate Swaps Net Goodwill adjustment for purchase price allocation Goodwill, Purchase Accounting Adjustments Fair Value Disclosures [Abstract] Fair Value, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] 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 Prices in Active Markets for Identical Assets (Level 1) Fair Value, Inputs, Level 1 [Member] Significant Other Observable Inputs (Level 2) Fair Value, Inputs, Level 2 [Member] Significant Unobservable Inputs (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] Non-current liabilities Liabilities, Fair Value Disclosure [Abstract] Derivative liability Financial Liabilities Fair Value Disclosure Assets Fair Value, Net Asset (Liability) [Abstract] Derivative assets Assets, Fair Value Disclosure Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Schedule of Discontinued Operations Disposal Groups, Including Discontinued Operations [Table Text Block] Revenue from External Customers by Products and Services [Table] Revenue from External Customers by Products and Services [Table] Product and Service [Axis] Product and Service [Axis] Product and Service [Domain] Product and Service [Domain] Suspended ceiling systems Suspended Ceiling Systems [Member] Suspended Ceiling Systems [Member] Metal framing Metal Framing [Member] Metal Framing [Member] Complementary and other products Other Products [Member] Other Products [Member] Revenue from External Customer [Line Items] Revenue from External Customer [Line Items] Percentage of net sales Percentage of Revenue, Net Percentage of Revenue, Net Change in net sales Change in Revenue, Net Change in Revenue, Net Percentage change in net sales Percentage Change in Revenue, Net Percentage Change in Revenue, Net Discontinued Operations Disposal Groups, Including Discontinued Operations, Disclosure [Text Block] BSL BSL [Member] BSL [Member] Consideration transferred Business Combination, Consideration Transferred Right-of-Use (ROU) Assets and Lease Liabilities Lessee, Operating Leases [Text Block] Right-of-Use (ROU) Assets and Lease Liabilities Lessee, Finance Leases [Text Block] Schedule of Earnings Per Share, Basic and Diluted Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Document and Entity Information [Abstract] Document and Entity Information [Abstract] Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Entity Filer Category Entity Filer Category Entity Common Stock Shares Outstanding (in shares) Entity Common Stock, Shares Outstanding Document Type Document Type Document Period End Date Document Period End Date Amendment Flag Amendment Flag Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Entity Current Reporting Status Entity Current Reporting Status Entity Emerging Growth Company Entity Emerging Growth Company Entity Smaller Reporting Company Entity Small Business Entity Shell Company Entity Shell Company Entity Interactive Data Current Entity Interactive Data Current Statement of Stockholders' Equity [Abstract] Statement [Table] Statement [Table] Adoption of derivatives guidance Common Stock Common Stock [Member] Additional Paid-in Capital Additional Paid-in Capital [Member] Retained Earnings Other Comprehensive Loss Statement [Line Items] Statement [Line Items] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Beginning balance (in shares) Shares, Issued Beginning balance Members' Equity Adoption of derivatives guidance Adoption of tax guidance Tax Cuts and Jobs Act, Reclassification from AOCI to Retained Earnings, Tax Effect Stock-based compensation Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture Vesting of restricted stock units (in shares) Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures Vesting of restricted stock units Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures Shares withheld related to net settlement of equity awards (in shares) Shares Issued, Shares, Share-based Payment Arrangement, before Forfeiture Shares withheld related to net settlement of equity awards Share-based Payment Arrangement, Decrease for Tax Withholding Obligation Other comprehensive loss Other Comprehensive Income (Loss), Net of Tax Net income Ending balance (in shares) Ending balance Schedule of Goodwill Schedule of Goodwill [Table Text Block] Schedule of Finite-Lived Intangible Assets Schedule of Finite-Lived Intangible Assets [Table Text Block] Operating Leases 2019 (excluding the nine months ended September 30, 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 2024 and thereafter Lessee, Operating Lease, Liability, Payments, Due after Year Five Total lease payments Lessee, Operating Lease, Liability, Payments, Due Less amount representing interest Lessee, Operating Lease, Liability, Undiscounted Excess Amount Total Current portion of lease liabilities Operating Lease, Liability, Current Long-term portion of lease liabilities Operating Lease, Liability, Noncurrent Finance Leases Lease, Cost [Abstract] 2019 (excluding the nine months ended September 30, 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 2024 and thereafter Finance Lease, Liability, Payments, Due after Year Five Total lease payments Finance Lease, Liability, Payment, Due Less amount representing interest Finance Lease, Liability, Undiscounted Excess Amount Total Current portion of lease liabilities Finance Lease, Liability, Current Long-term portion of lease liabilities Finance Lease, Liability, Noncurrent Total Operating And Finance Lease [Abstract] Operating And Finance Lease [Abstract] 2019 (excluding the nine months ended September 30, 2019) Operating And Finance Lease Liabilities, Payments, Remainder Of Fiscal Year Operating And Finance Lease Liabilities, Payments, Remainder Of Fiscal Year 2020 Operating And Finance Lease Liabilities, Payments, Year Two Operating And Finance Lease Liabilities, Payments, Year Two 2021 Operating And Finance Lease Liabilities, Payments, Year Three Operating And Finance Lease Liabilities, Payments, Year Three 2022 Operating And Finance Lease Liabilities, Payments, Year Four Operating And Finance Lease Liabilities, Payments, Year Four 2023 Operating And Finance Lease Liabilities, Payments, Year Five Operating And Finance Lease Liabilities, Payments, Year Five 2024 and thereafter Operating And Finance Lease Liabilities, Payments, After Year Five Operating And Finance Lease Liabilities, Payments, After Year Five Total lease payments Operating And Finance Lease Liabilities, Payments, Due Operating And Finance Lease Liabilities, Payments, Due Less amount representing interest Operating And Finance Lease Liabilities, Undiscounted Excess Amount Operating And Finance Lease Liabilities, Undiscounted Excess Amount Total Operating And Finance Lease Liability Operating And Finance Lease Liability Current portion of lease liabilities Long-term portion of lease liabilities Fair Value Measurements Fair Value Disclosures [Text Block]