INTANGIBLE ASSETS - Summary of Intangible Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 189,392	$ 189,341
Accumulated Amortization	(117,189)	(113,934)
Net Carrying Amount	72,203	75,407
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	165,267	165,231
Accumulated Amortization	(94,409)	(91,296)
Net Carrying Amount	70,858	73,935
Trade names
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	20,570	20,563
Accumulated Amortization	(19,895)	(19,830)
Net Carrying Amount	675	733
Technology
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	2,712	2,707
Accumulated Amortization	(2,042)	(1,978)
Net Carrying Amount	670	729
Licenses
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	843	840
Accumulated Amortization	(843)	(830)
Net Carrying Amount	$ 0	$ 10