Fair Value Measurements - Fair Value and Carrying Value of Debt (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021	May 31, 2013
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying Value	$ 246,756	$ 237,932
2013 8.00% Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying Value	$ 0	$ 1,407
Loan interest rate	8.00%	8.00%	8.00%
2013 8.00% Notes | Carrying Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying Value	$ 0	$ 1,407
2013 8.00% Notes | Estimated Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Estimated Fair Value	$ 0	$ 1,265