INTANGIBLE ASSETS - Summary of Intangible Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 189,410	$ 189,341
Accumulated Amortization	(120,407)	(113,934)
Net Carrying Amount	69,003	75,407
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	165,282	165,231
Accumulated Amortization	(97,507)	(91,296)
Net Carrying Amount	67,775	73,935
Trade names
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	20,571	20,563
Accumulated Amortization	(19,957)	(19,830)
Net Carrying Amount	614	733
Technology
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	2,714	2,707
Accumulated Amortization	(2,100)	(1,978)
Net Carrying Amount	614	729
Licenses
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	843	840
Accumulated Amortization	(843)	(830)
Net Carrying Amount	$ 0	$ 10