LONG-TERM DEBT - Outstanding Indebtedness (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Mar. 03, 2022	Dec. 31, 2021	Nov. 05, 2021	Aug. 31, 2021	Mar. 10, 2021	Aug. 31, 2020	Feb. 04, 2020
Long-term debt
Face Value of Debt	$ 344,834
Interest rate (as a percent)					0.73%	0.77%	0.22%
Derivative Liability				$ 26	$ 100,000		$ 50,000	$ 50,000
Outstanding amount	$ 343,196			278,273		$ 15,000
Weighted average fixed interest rate	0.35%
Credit Facility
Long-term debt
Face Value of Debt	$ 111,000
Outstanding amount	$ 111,000			$ 67,000
Credit Facility | LIBOR | Minimum
Long-term debt
Margin added to variable rate basis (as a percent)	1.35%
Credit Facility | LIBOR | Maximum
Long-term debt
Margin added to variable rate basis (as a percent)	1.95%
3.875% Convertible Senior Notes due 2025
Long-term debt
Face Value of Debt	$ 51,034								$ 17,600
Interest rate (as a percent)	3.875%			3.875%
Outstanding amount	$ 50,590			$ 47,469					$ 11,700
Mortgage Note Payable
Long-term debt
Face Value of Debt	$ 17,800
Interest rate (as a percent)	4.06%
Outstanding amount	$ 17,800
Fixed-Rate Mortgage Note
Long-term debt
Face Value of Debt			$ 17,800
Interest rate (as a percent)			4.06%
2026 Term Loan
Long-term debt
Face Value of Debt	65,000						$ 50,000
Proceeds from line of credit		$ 15,000
Outstanding amount	$ 65,000			65,000
2026 Term Loan | LIBOR | Minimum
Long-term debt
Margin added to variable rate basis (as a percent)	1.35%
2026 Term Loan | LIBOR | Maximum
Long-term debt
Margin added to variable rate basis (as a percent)	1.95%
2027 Term loan
Long-term debt
Face Value of Debt	$ 100,000				$ 100,000
Interest rate (as a percent)					0.73%
Derivative Liability					$ 100,000
Outstanding amount	$ 100,000			$ 100,000
2027 Term loan | LIBOR | Minimum
Long-term debt
Margin added to variable rate basis (as a percent)	1.35%
2027 Term loan | LIBOR | Maximum
Long-term debt
Margin added to variable rate basis (as a percent)	1.95%