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Long-Term Debt - Schedule of Long-Term Debt Instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Less: current maturities	$ 0	$ 0
Long-term debt	$ 142,397	128,210
4.50% Exchangeable Senior Notes Due 2023
Debt Instrument [Line Items]
Interest rate	4.50%
Senior Notes
Debt Instrument [Line Items]
Less: unamortized debt discount and issuance costs, net	$ (1,353)	(15,540)
Total	142,397	128,210
Equity component of exchangeable notes, net of issuance costs	0	(26,699)
Senior Notes | 4.50% Exchangeable Senior Notes Due 2023
Debt Instrument [Line Items]
Principal amount of 4.50% exchangeable senior notes due 2023	$ 143,750	$ 143,750

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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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