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Debt - Narrative (Details) - USD ($) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020 | Dec. 31, 2020
Debt Instrument [Line Items] |  |  |  |  |
2021 | $ 3,750,000 |  | $ 3,750,000 |  |
2022 | 15,000,000 |  | 15,000,000 |  |
2023 | 15,000,000 |  | 15,000,000 |  |
2024 | $ 262,834,000 |  | 262,834,000 |  |
Loans Payable And Revolving Credit Facility |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Increase in maximum availability |  |  | $ 100,000,000 |  |
Effective interest rate | 3.90% |  | 3.90% |  |
Interest expense, net | $ 2,700,000 | $ 3,300,000 | $ 7,900,000 | $ 9,500,000 |
Loans Payable And Revolving Credit Facility | Minimum |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Interest rate range | 3.50% |  | 3.50% |  |
Loans Payable And Revolving Credit Facility | Maximum |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Interest rate range | 6.18% |  | 6.18% |  |
Loans Payable And Revolving Credit Facility | Swap |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Derivative notional amount | $ 75,000,000 |  | $ 75,000,000 |  | $ 145,000,000
Loans Payable And Revolving Credit Facility | LIBOR |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Base margin |  |  | 2.25% |  |
Loans Payable And Revolving Credit Facility | Base Rate |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Base margin |  |  | 1.75% |  |
Revolving Loans |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Revolving loans maximum borrowing capacity | 350,000,000 |  | $ 350,000,000 |  |
Letters of credit outstanding | $ 803,000 |  | $ 803,000 |  | $ 0

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