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Long-Term Debt (Schedule of Long-Term Debt) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Long term debt	$ 320,971	$ 323,735
2029 Notes [Member]
Debt Instrument [Line Items]
Senior Notes	$ 320,971
8.000% Senior Notes Due in 2022 [Member]
Debt Instrument [Line Items]
Senior Notes		$ 323,735

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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