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Debt - Schedule of Long-Term Debt (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021	Aug. 31, 2020
Debt Instrument [Line Items]
Unamortized debt discount	$ (17,748)	$ (20,035)
Debt issuance cost	(4,356)	(4,918)
Total debt	269,535	233,230
Less: current maturities	(690)	(860)
Long-term debt, net of current portion	268,845	232,370
2025 Notes
Debt Instrument [Line Items]
Long-term debt, gross	256,970	256,970	$ 282,600
Unamortized debt discount			(32,900)
Total debt			$ 314,800
Other debt
Debt Instrument [Line Items]
Long-term debt, gross	1,096	1,213
2017 Credit Facility | Credit Facility
Debt Instrument [Line Items]
Long-term debt, gross	$ 33,573	$ 0

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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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Amount, excluding unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

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