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Long-Term Debt - Schedule of Long-Term Debt Instruments (Details) - USD ($) $ in Thousands	Apr. 01, 2023	Dec. 31, 2022	Apr. 02, 2022
Debt Instrument [Line Items]
Senior secured notes	$ 300,000	$ 300,000
Finance lease obligations	270,764	273,075
Total debt, gross	570,764	573,075
Unamortized debt issuance costs	(3,854)	(4,057)
Unamortized bond discount costs	(3,393)	(3,519)
Long-term debt	563,517	565,499
Less: current maturities of long-term debt	5,087	7,089
Long-term debt, net of current maturities	558,430	558,410
Long-term debt, excluding current maturities	292,753	292,424
Revolving Credit Facility | Line of Credit
Debt Instrument [Line Items]
Long-term debt, gross	$ 0	$ 0
Weighted average interest rate	0.00%		0.00%

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Long-term Debt, Gross And Lease Obligation

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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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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount, after accumulated amortization, of debt discount.

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Weighted average interest rate of debt outstanding.

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Present value of lessee's discounted obligation for lease payments from finance lease.

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Amount of long-term debt and lease obligation, classified as noncurrent.

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

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Including the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders.

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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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