v3.26.3
GOODWILL AND OTHER INTANGIBLE ASSETS - Schedule of Carrying Amount and Accumulated Amortization of Intangible Assets (Details) - USD ($)
$ in Thousands
Sep. 30, 2026
Dec. 31, 2025
Intangible Asset, Finite-Lived [Line Items]    
Total gross intangible assets $ 598,981 $ 598,981
Total accumulated amortization (317,612) (289,803)
Total intangible assets, net 281,369 309,178
Referral sources    
Intangible Asset, Finite-Lived [Line Items]    
Total gross intangible assets 551,188 551,188
Total accumulated amortization (289,213) (263,907)
Trademarks/names    
Intangible Asset, Finite-Lived [Line Items]    
Total gross intangible assets 46,808 46,808
Total accumulated amortization (27,526) (25,170)
Other amortizable intangible assets    
Intangible Asset, Finite-Lived [Line Items]    
Total gross intangible assets 985 985
Total accumulated amortization $ (873) $ (726)