v3.26.1
INTANGIBLE ASSETS - Summary of Acquired Intangible Assets (Details) - USD ($)
$ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Intangible Asset, Finite-Lived, Acquired [Line Items]    
Gross Carrying Amount $ 7,142,208 $ 7,164,038
Accumulated Amortization (6,560,958) (6,461,571)
Net Carrying Amount 581,250 702,467
Customer relationships    
Intangible Asset, Finite-Lived, Acquired [Line Items]    
Gross Carrying Amount 6,067,029 6,089,374
Accumulated Amortization (5,502,721) (5,405,190)
Net Carrying Amount $ 564,308 684,184
Customer relationships | Minimum    
Intangible Asset, Finite-Lived, Acquired [Line Items]    
Estimated Useful Lives 1 year  
Customer relationships | Maximum    
Intangible Asset, Finite-Lived, Acquired [Line Items]    
Estimated Useful Lives 18 years  
Trade names    
Intangible Asset, Finite-Lived, Acquired [Line Items]    
Gross Carrying Amount $ 1,010,000 1,010,000
Accumulated Amortization (1,010,000) (1,010,000)
Net Carrying Amount $ 0 0
Trade names | Minimum    
Intangible Asset, Finite-Lived, Acquired [Line Items]    
Estimated Useful Lives 4 years  
Trade names | Maximum    
Intangible Asset, Finite-Lived, Acquired [Line Items]    
Estimated Useful Lives 7 years  
Other amortizable intangibles    
Intangible Asset, Finite-Lived, Acquired [Line Items]    
Gross Carrying Amount $ 65,179 64,664
Accumulated Amortization (48,237) (46,381)
Net Carrying Amount $ 16,942 $ 18,283
Other amortizable intangibles | Minimum    
Intangible Asset, Finite-Lived, Acquired [Line Items]    
Estimated Useful Lives 1 year  
Other amortizable intangibles | Maximum    
Intangible Asset, Finite-Lived, Acquired [Line Items]    
Estimated Useful Lives 15 years