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Sum of the carrying values as of the balance sheet date of all debt, including all short-term borrowings, long-term debt, and capital lease obligations.

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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

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Description of the frequency of periodic payments (monthly, quarterly, annual).

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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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Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount, after accumulated amortization, of debt discount.

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Weighted average interest rate of debt outstanding.

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Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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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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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Average amount borrowed under the credit facility during the period.

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Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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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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Debt - Narrative (Details) - USD ($)		3 Months Ended	6 Months Ended
Debt - Narrative (Details) - USD ($)	Mar. 25, 2019	Jun. 30, 2019	Jun. 30, 2019	Dec. 31, 2018	Mar. 03, 2016
Debt Instrument [Line Items]
Debt instrument charge from refinancing			$ 25,000,000.0
Unamortized debt issuance costs		$ 4,900,000	4,900,000	$ 2,300,000
Carrying amount		318,300,000	$ 318,300,000	273,100,000
Senior Notes Due 2026
Debt Instrument [Line Items]
Face amount of debt	$ 300,000,000.0
Debt instrument interest rate	9.00%
Debt instrument maturity date			Apr. 01, 2026
Interest on the notes			Interest on the 2026 Notes is payable in cash semi-annually in arrears on April 1 and October 1 of each year.
Carrying amount		$ 300,000,000.0	$ 300,000,000.0
ABL Revolving Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity under revolving credit facility	$ 275,000,000.0				$ 225,000,000.0
Weighted average interest rate (as a percent)		3.982%	3.982%
Line of credit outstanding		$ 0	$ 0	0
Highest daily borrowing		39,700,000
Average borrowing		23,000,000.0
Excess capacity		271,000,000.0	271,000,000.0
Line of credit borrowing capacity		275,000,000.0	$ 275,000,000.0
ABL Revolving Credit Facility \| LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)			1.25%
ABL Revolving Credit Facility \| Prime Rate
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)			0.00%
ABL Revolving Credit Facility \| Line of Credit
Debt Instrument [Line Items]
Debt term (in years)	5 years
ABL Revolving Credit Facility \| Letter of Credit
Debt Instrument [Line Items]
Maximum borrowing capacity under revolving credit facility	$ 75,000,000.0
Line of credit outstanding		4,000,000.0	$ 4,000,000.0
ABL Revolving Credit Facility \| Letter of Credit \| German Borrowers
Debt Instrument [Line Items]
Maximum borrowing capacity under revolving credit facility	$ 10,000,000.0
Senior Notes Due 2021
Debt Instrument [Line Items]
Debt instrument interest rate	12.75%
Maximum borrowing capacity under revolving credit facility	$ 260,000,000.0
Debt instrument call premium	16,600,000		16,600,000
Closing costs of debt	5,000,000.0
Accrued interest of debt	4,600,000
Debt instrument unamortized discount		5,300,000	5,300,000
Unamortized debt issuance costs		3,100,000	3,100,000
Carrying amount				254,200,000
AR Securitization Facility
Debt Instrument [Line Items]
Maximum borrowing capacity under revolving credit facility	$ 75,000,000.0
Other
Debt Instrument [Line Items]
Carrying amount		$ 23,200,000	$ 23,200,000	$ 21,200,000
Weighted average interest rate (as a percent)		4.625%	4.625%