GOODWILL AND OTHER INTANGIBLE ASSETS -Schedule of Carrying Amount and Accumulated Amortization of Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Finite-Lived Intangible Assets [Line Items]
Total gross intangible assets	$ 598,981	$ 554,509
Total accumulated amortization	(289,803)	(253,499)
Total intangible assets, net	309,178	301,010
Referral sources
Finite-Lived Intangible Assets [Line Items]
Total gross intangible assets	551,188	514,388
Total accumulated amortization	(263,907)	(230,371)
Trademarks/names
Finite-Lived Intangible Assets [Line Items]
Total gross intangible assets	46,808	39,136
Total accumulated amortization	(25,170)	(22,599)
Other amortizable intangible assets
Finite-Lived Intangible Assets [Line Items]
Total gross intangible assets	985	985
Total accumulated amortization	$ (726)	$ (529)