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Debt - Narrative (Details) - USD ($) |  | 1 Months Ended | 3 Months Ended | 9 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
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 |  |  |  |  |

X
- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=123466204&loc=SL6031897-161870 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 + Details
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