LONG-TERM DEBT - Components (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Mar. 03, 2022	Dec. 31, 2021	Nov. 05, 2021	Aug. 31, 2021	Mar. 10, 2021	Feb. 04, 2020
Long-term debt
Long-term debt	$ 298,079		$ 278,273		$ 15,000
Financing Costs, net of Accumulated Amortization	(1,272)		(1,196)
Long-term debt due within one year
Interest rate (as a percent)				0.73%	0.77%	0.22%
Credit Facility
Long-term debt
Long-term debt	66,000		67,000
2026 Term Loan
Long-term debt
Long-term debt	65,000		65,000
2027 Term loan
Long-term debt
Long-term debt	100,000		100,000
Long-term debt due within one year
Interest rate (as a percent)				0.73%
Fixed-Rate Mortgage Note
Long-term debt due within one year
Interest rate (as a percent)		4.06%
3.875% Convertible Senior Notes due 2025
Long-term debt
Long-term debt	$ 50,551		$ 47,469				$ 11,700
Long-term debt due within one year
Interest rate (as a percent)	3.875%		3.875%
Mortgage Note Payable
Long-term debt
Long-term debt	$ 17,800
Long-term debt due within one year
Interest rate (as a percent)	4.06%