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Debt - 2019 ABL Agreement (Details) - USD ($) |  |  | 1 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Apr. 01, 2021 | Oct. 01, 2019 | Jul. 31, 2021 | Mar. 31, 2020 | Jun. 30, 2019 | Dec. 31, 2020 | Sep. 30, 2020 | Aug. 31, 2020 | Dec. 31, 2019 | Nov. 30, 2019 | Nov. 30, 2018
2019 ABL Credit Agreement |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Basis spread over variable rate |  |  |  |  |  | 3.00% |  |  |  |  |
Leverage ratio |  | 330.00% |  | 425.00% | 4.00% |  | 285.00% | 461.00% |  |  |
Leverage ratio minimum requirement |  |  |  |  |  |  | 4.00 | 4.00 |  |  |
Letters of credit |  |  |  |  |  | $ 3,400,000 |  |  | $ 3,300,000 |  |
Debt issuance costs, net |  |  |  |  |  | 900,000 |  |  |  |  |
Amortization of debt issuance costs |  |  |  |  |  | $ 300,000 |  |  | $ 200,000 |  |
2019 ABL Credit Agreement | Forecast |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Leverage ratio | 200.00% |  | 1.75% |  |  |  |  |  |  |  |
2019 ABL Credit Amendment Number One and Waiver |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Leverage ratio |  | 330.00% |  | 425.00% |  |  |  |  |  |  |
Lender's approval for acquisition, percentage |  |  |  |  |  | 50.10% |  |  |  |  |
Debt instrument, non refundable waiver fee |  |  |  |  |  | $ 7,500 |  |  |  |  |
2019 ABL Credit Amendment Number One and Waiver | Forecast |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Leverage ratio | 200.00% |  |  |  |  |  |  |  |  |  |
Minimum | 2019 ABL Credit Agreement |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Basis spread over variable rate |  |  |  |  |  | 2.00% |  |  |  |  |
Debt instrument, interest rate, stated percentage |  |  |  |  |  | 3.00% |  |  |  |  |
Line of credit facility, unused capacity, commitment fee percentage |  |  |  |  |  | 0.25% |  |  |  |  |
Minimum | 2019 ABL Credit Amendment Number One and Waiver |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Debt instrument, liquidity of loan parties |  |  |  |  |  |  |  |  |  | $ 10,000,000 |
Maximum | 2019 ABL Credit Agreement |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Basis spread over variable rate |  |  |  |  |  | 2.50% |  |  |  |  |
Debt instrument, interest rate, stated percentage |  |  |  |  |  | 3.50% |  |  |  |  |
Line of credit facility, unused capacity, commitment fee percentage |  |  |  |  |  | 0.375% |  |  |  |  |
LIBOR Rate | 2019 ABL Credit Agreement |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Basis spread over variable rate |  |  |  |  |  | 2.00% |  |  |  |  |
Revolving Credit Facility |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, maximum borrowing capacity |  |  |  |  |  |  |  |  |  |  | $ 25,000,000.0
Revolving Credit Facility | 2019 ABL Credit Agreement |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, maximum borrowing capacity |  |  |  |  |  | $ 15,000,000.0 |  |  |  |  |
Line of credit facility, current borrowing capacity |  |  |  |  |  | 14,000,000 |  |  |  |  |
Line of credit facility reserved borrowing capacity |  |  |  |  |  | $ 1,000,000.0 |  |  |  |  |

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