INTANGIBLE ASSETS - Schedule of Identifiable Intangible Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Identifiable intangible assets [Abstract]
Gross Carrying Amount	$ 476,794	$ 470,250
Accumulated Amortization	310,829	305,200
Customer relationships & lists
Identifiable intangible assets [Abstract]
Gross Carrying Amount	359,414	354,051
Accumulated Amortization	$ 225,696	221,567
Customer relationships & lists | Minimum
Identifiable intangible assets [Abstract]
Amortization Period (in years)	10 years
Customer relationships & lists | Maximum
Identifiable intangible assets [Abstract]
Amortization Period (in years)	20 years
Trademarks & trade names
Identifiable intangible assets [Abstract]
Gross Carrying Amount	$ 51,631	50,971
Accumulated Amortization	$ 42,274	41,417
Trademarks & trade names | Minimum
Identifiable intangible assets [Abstract]
Amortization Period (in years)	2 years
Trademarks & trade names | Maximum
Identifiable intangible assets [Abstract]
Amortization Period (in years)	17 years
Developed technology
Identifiable intangible assets [Abstract]
Gross Carrying Amount	$ 40,815	40,074
Accumulated Amortization	$ 21,131	20,362
Developed technology | Minimum
Identifiable intangible assets [Abstract]
Amortization Period (in years)	5 years
Developed technology | Maximum
Identifiable intangible assets [Abstract]
Amortization Period (in years)	12 years
Other
Identifiable intangible assets [Abstract]
Gross Carrying Amount	$ 24,934	25,154
Accumulated Amortization	$ 21,728	$ 21,854
Other | Minimum
Identifiable intangible assets [Abstract]
Amortization Period (in years)	2 years
Other | Maximum
Identifiable intangible assets [Abstract]
Amortization Period (in years)	18 years