v3.26.3
FAIR VALUE MEASUREMENTS - Summary of Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($)
$ in Thousands
Sep. 30, 2026
Dec. 31, 2025
Dec. 31, 2024
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Assets of deferred compensation plan $ 193,206 $ 186,870  
Deferred compensation plan obligations (193,206) (186,870)  
Available-for-sale debt securities 42,743 45,004 $ 40,999
Level 1      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Assets of deferred compensation plan 193,206 186,870  
Other depository assets 188 470  
Deferred compensation plan obligations (193,206) (186,870)  
Level 2      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Available-for-sale debt securities 42,743 45,004  
Interest rate swaps 8,461 (3,602)  
Bank debt, net (1,441,534) (1,455,924)  
Level 3      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Contingent purchase price liabilities $ (19,679) $ (40,248)