GOODWILL AND OTHER INTANGIBLE ASSETS - Intangible assets (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
GOODWILL AND OTHER INTANGIBLE ASSETS
Amortizing intangibles	$ 151,344		$ 151,344		$ 144,582
Accumulated amortization	(79,904)		(79,904)		(74,699)
Amortizing intangibles, net	71,440		71,440		69,883
Non-amortizing intangibles	1,370,986		1,370,986		1,357,256
Intangibles, net	1,442,426		1,442,426		$ 1,427,139
Amortization expense	2,200	$ 1,300	5,200	$ 4,200
Loss on impairment of intangibles	$ 0	0	$ 0	2,800
Impairment charges on non-amortizing intangibles.		$ 2,800		$ 2,800
Minimum
GOODWILL AND OTHER INTANGIBLE ASSETS
Useful life of intangible assets	10 years		10 years
Maximum
GOODWILL AND OTHER INTANGIBLE ASSETS
Useful life of intangible assets	15 years		15 years