SEGMENT AND RELATED INFORMATION - Financial Information by Business Segment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Segment Reporting Information [Line Items]
Total Revenues	$ 697,052	$ 594,463	$ 529,729
Depreciation and amortization	87,214	83,101	96,547
Operating (loss) income	17,018	6,052	(147,188)
Capital expenditures	25,421	15,571	10,083
Total assets	566,184	672,734	740,853
Canada
Segment Reporting Information [Line Items]
Total Revenues	395,997	321,378	269,649
Australia
Segment Reporting Information [Line Items]
Total Revenues	278,252	251,074	234,542
U.S.
Segment Reporting Information [Line Items]
Total Revenues	22,803	22,011	25,538
Operating Segments | Canada
Segment Reporting Information [Line Items]
Total Revenues	395,997	321,378	269,649
Depreciation and amortization	55,503	47,253	52,009
Operating (loss) income	17,023	12,816	(146,435)
Capital expenditures	11,588	6,747	2,201
Total assets	726,640	764,519	720,482
Operating Segments | Australia
Segment Reporting Information [Line Items]
Total Revenues	278,252	251,074	234,542
Depreciation and amortization	30,521	33,110	40,747
Operating (loss) income	14,731	7,303	27,804
Capital expenditures	12,757	6,823	5,470
Total assets	198,795	226,318	281,180
Operating Segments | U.S.
Segment Reporting Information [Line Items]
Total Revenues	22,803	22,011	25,538
Depreciation and amortization	1,148	2,060	3,240
Operating (loss) income	(8,330)	(8,869)	(23,151)
Capital expenditures	1,015	1,484	1,557
Total assets	10,465	22,595	26,801
Corporate and eliminations | Corporate and eliminations
Segment Reporting Information [Line Items]
Total Revenues	0	0	0
Depreciation and amortization	42	678	551
Operating (loss) income	(6,406)	(5,198)	(5,406)
Capital expenditures	61	517	855
Total assets	$ (369,716)	$ (340,698)	$ (287,610)