Credit Facility, Bank Loan and Lines of Credit - Credit Facility (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Line of Credit Facility [Line Items]
Total debt	$ 187,575	$ 245,705
Less: Current portion of debt	(205)	(10,889)
Less: Unamortized financing costs	(4,665)	(4,605)
Long-term debt, net of current portion and deferred financing costs	182,705	230,211
Real Estate Loan
Line of Credit Facility [Line Items]
Total debt	7,498	7,580
Construction Loan
Line of Credit Facility [Line Items]
Total debt	77	0
Term Loan A
Line of Credit Facility [Line Items]
Total debt	0	178,125
Revolver Loan
Line of Credit Facility [Line Items]
Total debt	$ 180,000	$ 60,000