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Debt - Schedule of Long-Term Debt (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 30, 2021	Dec. 31, 2020	Aug. 31, 2020
Debt Instrument [Line Items]
Long-term debt, gross	$ 233,230		$ 294,695
Unamortized debt discount	(20,035)		(30,248)
Less: Debt issuance cost	(4,918)		(7,318)
Less: current maturities	(860)		(1,322)
Long-term debt	232,370		293,373
2025 Notes
Debt Instrument [Line Items]
Long-term debt, gross	256,970	$ 53,300	316,863	$ 282,600
Long-term debt				$ 314,800
Other debt
Debt Instrument [Line Items]
Long-term debt, gross	1,213		2,272
2017 Credit Facility | Senior secured revolving credit facility
Debt Instrument [Line Items]
Long-term debt, gross	$ 0		$ 13,126

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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, after accumulated amortization, of debt discount.

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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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