Annual report [Section 13 and 15(d), not S-K Item 405]

GOODWILL AND OTHER INTANGIBLE ASSETS - Schedule of Other Intangible Assets (Details)

v3.26.1
GOODWILL AND OTHER INTANGIBLE ASSETS - Schedule of Other Intangible Assets (Details) - USD ($)
$ in Thousands
Dec. 31, 2025
Dec. 31, 2024
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Value $ 570,588 $ 566,910
Accumulated Amortization (487,583) (441,853)
Net Carrying Value 83,005 125,057
Customer relationships    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Value 334,986 334,123
Accumulated Amortization (288,019) (257,326)
Net Carrying Value 46,967 76,797
Internally developed computer software    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Value 91,732 89,386
Accumulated Amortization (63,563) (56,679)
Net Carrying Value 28,169 32,707
Carrier contracts    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Value 70,210 70,210
Accumulated Amortization (66,823) (61,479)
Net Carrying Value 3,387 8,731
Technology    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Value 50,540 50,202
Accumulated Amortization (48,194) (46,835)
Net Carrying Value 2,346 3,367
Trademarks    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Value 17,516 17,385
Accumulated Amortization (15,380) (13,946)
Net Carrying Value 2,136 3,439
Non-compete agreement    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Value 5,604 5,604
Accumulated Amortization (5,604) (5,588)
Net Carrying Value $ 0 $ 16