SEGMENT REPORTING - Geographic (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Segment reporting
Revenue recognition	$ 316,385	$ 216,136	$ 208,475
Property and equipment, net	43,246	52,671
Assets held for sale	8,020
United States
Segment reporting
Revenue recognition	312,427	211,893	202,881
Property and equipment, net	40,343	38,564
Canada
Segment reporting
Revenue recognition	3,958	4,243	$ 5,594
Property and equipment, net	1,856	13,831
Assets held for sale	8,000
India
Segment reporting
Property and equipment, net	$ 1,047	$ 276