LONG-TERM DEBT AND FINANCING ARRANGEMENTS - Summary (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Long-term debt obligations
Long-term debt	$ 212,171	$ 228,938
Less current portion	63,179	66,948
Long-term debt, less current portion	148,992	161,990
Credit Facility
Long-term debt obligations
Long-term debt	$ 50,000	50,000
Interest rate (as a percent)	6.60%
Credit Facility | Interest rate swap agreement, maturing on October 1, 2024
Long-term debt obligations
Amount of borrowings covered by the interest rate swap	$ 50,000	$ 50,000
Effective fixed interest rate on hedged borrowings (as a percent)	1.55%	1.55%
Notes payable
Long-term debt obligations
Long-term debt	$ 162,171	$ 178,938
Weighted-average interest rate (as a percent)	3.90%