REDEEMABLE NONCONTROLLING INTERESTS - Schedule of Redeemable Noncontrolling Interest (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Equity, Attributable to Noncontrolling Interest [Roll Forward]
Beginning balance	$ 27,595	$ 42,628	$ 32,431	$ 42,757
Net income (loss) attributable to redeemable noncontrolling interests	(130)	117	(179)	(12)
Redemptions of redeemable noncontrolling interests	(7,629)		(12,416)
Ending balance	19,836	42,745	19,836	42,745
Altius
Equity, Attributable to Noncontrolling Interest [Roll Forward]
Beginning balance	0	(892)	0	(885)
Net income (loss) attributable to redeemable noncontrolling interests	0	26	0	19
Redemptions of redeemable noncontrolling interests	0		0
Ending balance	0	(866)	0	(866)
XO
Equity, Attributable to Noncontrolling Interest [Roll Forward]
Beginning balance	19,966	21,858	21,542	22,014
Net income (loss) attributable to redeemable noncontrolling interests	(130)	32	(266)	(124)
Redemptions of redeemable noncontrolling interests	0		(1,440)
Ending balance	19,836	21,890	19,836	21,890
VTS
Equity, Attributable to Noncontrolling Interest [Roll Forward]
Beginning balance	7,629	20,102	10,889	20,046
Net income (loss) attributable to redeemable noncontrolling interests	0	68	87	124
Redemptions of redeemable noncontrolling interests	(7,629)		(10,976)
Ending balance	0	20,170	0	20,170
SMI
Equity, Attributable to Noncontrolling Interest [Roll Forward]
Beginning balance	0	1,560	0	1,582
Net income (loss) attributable to redeemable noncontrolling interests	0	(9)	0	(31)
Redemptions of redeemable noncontrolling interests	0		0
Ending balance	$ 0	$ 1,551	$ 0	$ 1,551