SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Segment Reporting - CODM (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2025	Mar. 31, 2025	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2025	Jun. 30, 2024
Revenues
Net revenues	$ 136,914		$ 128,143		$ 262,308	$ 249,800
Operating expenses
Depreciation and amortization	13,571		12,404		26,786	24,891
Other operating items, net	944		233		1,415	706
Interest expense, net	392		(211)		708	(204)
Provision for income taxes	(8,283)		(6,620)		(14,053)	(12,162)
Net income	$ 27,008	$ 19,864	$ 22,682	$ 18,275	46,872	40,957
Single reportable segment
Revenues
Net revenues					262,308	249,800
Operating expenses
Labor expense					78,733	77,637
Cost of sales					21,444	21,534
Tax and license expense					39,549	37,187
Other operating expense					34,164	34,522
Depreciation and amortization					26,786	24,891
Other operating items, net					1,415	706
Interest expense, net					(708)	204
Provision for income taxes					14,053	12,162
Total operating expenses					215,436	208,843
Net income					$ 46,872	$ 40,957