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Short-Term and Long-Term Debt, Including Finance Leases - Long-term debt instruments (Details) - USD ($)
Dec. 31, 2022
Dec. 31, 2021
Debt Instrument [Line Items]    
Credit Facility $ 238,604,000 $ 174,594,000
Finance lease and other obligations $ 254,000 $ 425,000
Finance Lease, Liability, Statement of Financial Position [Extensible Enumeration] Liabilities, Current Liabilities, Current
Total long-term debt and finance leases $ 238,858,000 $ 175,019,000
Less: portion of Credit Facility classified as short term (27,048,000) (10,704,000)
Less: current installments of finance leases and other obligations (82,000) (88,000)
Total long-term debt and finance leases, less current installments 211,810,000 164,315,000
Credit Facility    
Debt Instrument [Line Items]    
Less: portion of Credit Facility classified as short term $ (26,966,000) $ (10,616,000)