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Revolving Credit Facility and Long-Term Debt - Future Minimum Payments on Long-term Debt (Details)
$ in Thousands
Sep. 30, 2021
USD ($)
Debt Disclosure [Abstract]  
Remaining 2021 $ 1,875
2022 8,438
2023 11,250
2024 257,437
Total future minimum principal payments $ 279,000