SEGMENT AND GEOGRAPHIC INFORMATION (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
SEGMENT AND GEOGRAPHIC INFORMATION
Revenue	$ 570,776	$ 471,063	$ 527,113
Long-lived assets:	208,906	187,328	188,455
United States
SEGMENT AND GEOGRAPHIC INFORMATION
Long-lived assets:	178,936	155,664	155,428
Canada
SEGMENT AND GEOGRAPHIC INFORMATION
Long-lived assets:	27,051	28,765	30,412
Mexico and Other
SEGMENT AND GEOGRAPHIC INFORMATION
Long-lived assets:	2,919	2,899	2,615
Product
SEGMENT AND GEOGRAPHIC INFORMATION
Revenue	566,043	467,427	523,616
Product | United States
SEGMENT AND GEOGRAPHIC INFORMATION
Revenue	514,437	431,024	478,790
Product | Canada, Mexico, and Other
SEGMENT AND GEOGRAPHIC INFORMATION
Revenue	$ 51,606	$ 36,403	$ 44,826