Credit Arrangements (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Credit arrangements
Total debt	$ 353,493	$ 352,088
Unamortized debt issuance costs	(681)	(787)
Total debt, net	352,812	351,301
Less: current portion	(51,913)	(55,659)
Long-term debt, net of current portion	300,899	295,642
Term Loan
Credit arrangements
Total debt, net	198,000	203,500
Commercial equipment notes
Credit arrangements
Total debt	106,119	105,114
Mortgages
Credit arrangements
Total debt, net	$ 49,374	$ 43,474

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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