GOODWILL AND OTHER INTANGIBLE ASSETS - Summary of Components of Amortizing Intangible Assets, Including Capitalized Software (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 158,421	$ 182,371
Accumulated Amortization	(111,825)	(109,329)
Acquired and developed technology
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	63,866	71,586
Accumulated Amortization	(49,127)	(52,097)
Customer relationships and trade names
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	94,555	110,785
Accumulated Amortization	$ (62,698)	$ (57,232)