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Fair Value Measurements (Narrative) (Details) - USD ($)	Dec. 31, 2021	Dec. 31, 2020
Extinguishment of Debt [Line Items]
Carrying value of outstanding debt	$ 23,781,000	$ 85,636,000
Revolving Credit Facility \| Senior Credit Agreement
Extinguishment of Debt [Line Items]
Carrying value of outstanding debt	$ 24,500,000	$ 85,000,000

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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