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v3.20.4

Debt and Credit Facility - Additional Information (Details) - USD ($) |  | 1 Months Ended | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Dec. 18, 2019 | Oct. 31, 2019 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | May 01, 2020 | Apr. 28, 2020 | Nov. 26, 2019 | May 15, 2016
Revolving Credit Facility |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |
Line of credit facility, maximum borrowing capacity |  | $ 375,000,000.0 | $ 375,000,000.0 |  |  |  |  |  |
Percentage of eligible accounts receivable in which the account debtor is an investment-grade domestic account debtor (percent) |  | 90.00% |  |  |  |  |  |  |
Percentage of eligible accounts receivable for borrowing base |  | 85.00% |  |  |  |  |  |  |
Percentage of eligible accounts receivable in which the account debtor is not a domestic account debtor (percent) |  | 85.00% |  |  |  |  |  |  |
Percentage of lesser of maximum revolver amount or borrowing base (percent) |  | 25.00% |  |  |  |  |  |  |
Percentage of eligible inventory for borrowing base |  | 75.00% |  |  |  |  |  |  |
Percentage of net orderly liquidation value of eligible inventory |  | 85.00% |  |  |  |  |  |  |
Maximum amount of eligible machinery and equipment for borrowing base |  | $ 71,500,000 |  |  |  |  |  |  |
Percentage of eligible cash (percent) |  | 100.00% |  |  |  |  |  |  |
Monthly commitment fee (percent) |  | 0.25% |  |  |  |  |  |  |
Maximum borrowing capacity under credit facility |  | $ 575,000,000.0 |  |  |  |  |  |  |
Revolving Credit Facility | Payment Condition |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |
Fixed charge coverage ratio |  | 1.10 |  |  |  |  |  |  |
Revolving Credit Facility | Covenant Trigger Event |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |
Fixed charge coverage ratio |  | 1.0 |  |  |  |  |  |  |
Revolving Credit Facility | LIBOR |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |
Applicable margin, basis points |  | 1.25% |  |  |  |  |  |  |
Revolving Credit Facility | Letter of Credit |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |
Line of credit facility, maximum borrowing capacity |  | $ 20,000,000.0 |  |  |  |  |  |  |
Senior Notes Due 2025 | Senior Notes |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |
Debt instrument contractual rate (percent) |  |  |  |  |  | 6.50% | 6.50% |  |
Debt issuance, percentage of principal amount |  |  |  |  |  | 101.00% | 100.00% |  |
Debt principal amount |  |  | 350,000,000.0 |  |  | $ 50,000,000.0 | $ 300,000,000.0 |  |
Unamortized debt issuance costs |  |  | 5,400,000 |  |  |  |  |  |
Interest expense |  |  | $ 16,200,000 |  |  |  |  |  |
Effective interest rate (percent) |  |  | 6.80% |  |  |  |  |  |
Debt instrument, payment terms |  |  | Interest accrues on the 6.50% Senior Notes beginning April 28, 2020 at a rate of 6.50% per annum and is payable semiannually on May 1 and November 1 of each year. The first interest payment date was November 1, 2020 |  |  |  |  |  |
Debt instrument, frequency of interest payment |  |  | semiannually |  |  |  |  |  |
Debt Instrument, first interest payment date |  |  | Nov. 01, 2020 |  |  |  |  |  |
Fair value of outstanding debt |  |  | $ 376,800,000 |  |  |  |  |  |
Senior Notes Due 2025 | Senior Notes | On or After May 1, 2022 |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |
Redemption price as percentage of principal (percent) |  |  | 103.25% |  |  |  |  |  |
Senior Notes Due 2025 | Senior Notes | On or After May 1, 2023 |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |
Redemption price as percentage of principal (percent) |  |  | 101.625% |  |  |  |  |  |
Senior Notes Due 2025 | Senior Notes | On or After May 1, 2024 |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |
Redemption price as percentage of principal (percent) |  |  | 100.00% |  |  |  |  |  |
Senior Notes Due 2025 | Senior Notes | Prior to May 1, 2022 |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |
Redemption price as percentage of principal (percent) |  |  | 106.50% |  |  |  |  |  |
Percentage of principal that can be redeemed (percent) |  |  | 40.00% |  |  |  |  |  |
Senior Notes Due 2028 | Senior Notes |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |
Debt instrument contractual rate (percent) |  |  |  |  |  |  |  | 4.625% |
Debt issuance, percentage of principal amount |  |  |  |  |  |  |  | 100.00% |
Debt principal amount |  |  |  |  |  |  |  | $ 500,000,000.0 |
Unamortized debt issuance costs |  |  | $ 6,500,000 |  |  |  |  |  |
Interest expense |  |  | $ 24,000,000.0 | $ 2,400,000 |  |  |  |  |
Effective interest rate (percent) |  |  | 4.80% |  |  |  |  |  |
Fair value of outstanding debt |  |  | $ 521,300,000 | 513,500,000 |  |  |  |  |
Consolidated net debt ratio |  |  | 275.00% |  |  |  |  |  |
Senior Notes Due 2028 | Senior Notes | Change in control |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |
Redemption price as percentage of principal (percent) |  |  | 101.00% |  |  |  |  |  |
Senior Notes Due 2028 | Senior Notes | On or After March 1, 2023 |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |
Redemption price as percentage of principal (percent) |  |  | 102.313% |  |  |  |  |  |
Senior Notes Due 2028 | Senior Notes | On or After March 1, 2024 |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |
Redemption price as percentage of principal (percent) |  |  | 101.156% |  |  |  |  |  |
Senior Notes Due 2028 | Senior Notes | On or After March 1, 2025 |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |
Redemption price as percentage of principal (percent) |  |  | 100.00% |  |  |  |  |  |
Senior Notes Due 2028 | Senior Notes | Prior to March 1, 2023, Plus Applicable Premium |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |
Redemption price as percentage of principal (percent) |  |  | 100.00% |  |  |  |  |  |
Senior Notes Due 2028 | Senior Notes | Prior to March 1, 2023 |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |
Redemption price as percentage of principal (percent) |  |  | 104.625% |  |  |  |  |  |
Senior Notes Due 2028 | Senior Notes | Prior to March 1, 2023 | Maximum |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |
Percentage of principal that can be redeemed (percent) |  |  | 40.00% |  |  |  |  |  |
Senior Notes Due 2028 | Senior Notes | Upon receipt of the proceeds of certain asset sale |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |
Redemption price as percentage of principal (percent) |  |  | 100.00% |  |  |  |  |  |
Senior Notes Due 2024 | Senior Notes |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |
Debt instrument contractual rate (percent) |  |  |  |  |  |  |  |  | 5.875%
Debt issuance, percentage of principal amount |  |  |  |  |  |  |  |  | 100.00%
Debt principal amount |  |  |  |  |  |  |  |  | $ 375,000,000.0
Interest expense |  |  |  | $ 22,000,000.0 | $ 22,900,000 |  |  |  |
Effective interest rate (percent) |  |  |  | 6.10% |  |  |  |  |
Redemption price as percentage of principal (percent) | 104.406% |  |  |  |  |  |  |  |

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