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Financing Arrangements (Borrowings Under Existing Financing Arrangements) (Details) - USD ($)
$ in Thousands
Sep. 30, 2020
Dec. 31, 2019
Debt Disclosure [Abstract]    
Total notes payable $ 38,909 $ 41,708
Less: current portion (3,792) (3,740)
Total long-term debt $ 35,117 $ 37,968