Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Face (par) amount of debt instrument at time of issuance.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

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Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer.

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Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

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Debt - Narrative (Details) - USD ($)		1 Months Ended	3 Months Ended	9 Months Ended
Debt - Narrative (Details) - USD ($)	Mar. 24, 2020	Jun. 30, 2020	Sep. 30, 2021	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020	Mar. 01, 2018	Nov. 02, 2017
Debt Instrument [Line Items]
Borrowings under ABL Facility				$ 0	$ 70,000,000
Repayments of lines of credit				40,000,000	$ 30,000,000
Letters of credit outstanding			$ 9,400,000	9,400,000
Senior Secured Notes
Debt Instrument [Line Items]
Long-term debt, gross			343,435,000	343,435,000		$ 343,435,000
Senior Secured Notes \| Senior Secured Notes Due 2024, Existing Notes
Debt Instrument [Line Items]
Face amount of debt								$ 350,000,000
Stated interest rate (as a percent)								8.00%
Senior Secured Notes \| Senior Secured Notes Due 2024, New Notes
Debt Instrument [Line Items]
Face amount of debt							$ 125,000,000
Senior Secured Notes \| Senior Secured Notes Due 2024, Existing Notes, Restricted Payment Offer
Debt Instrument [Line Items]
Stated interest rate (as a percent)							8.00%
ABL Borrowings \| ABL Facility
Debt Instrument [Line Items]
Amount of borrowings available			87,300,000	87,300,000
ABL Borrowings
Debt Instrument [Line Items]
Long-term debt, gross			0	$ 0		$ 40,000,000
Citibank \| ABL Borrowings
Debt Instrument [Line Items]
Borrowings under ABL Facility	$ 70,000,000
Repayments of lines of credit		$ 30,000,000	$ 40,000,000