GOODWILL AND OTHER INTANGIBLE ASSETS - Schedule of Intangible Assets (Details) - USD ($) $ in Thousands		12 Months Ended
	Apr. 01, 2018	Dec. 31, 2019	Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization Period (in Years)		8 years 6 months	8 years 109 days
Gross		$ 91,224	$ 89,232
Accumulated Amortization		(27,374)	(16,984)
Net		$ 63,850	$ 72,248
Developed Technology
Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization Period (in Years)		6 years	6 years
Gross		$ 10,001	$ 10,001
Accumulated Amortization		(6,004)	(4,234)
Net		$ 3,997	$ 5,767
Customer Relationships
Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization Period (in Years)	8 years	8 years 10 months 24 days	9 years
Gross		$ 78,558	$ 73,358
Accumulated Amortization		(19,757)	(10,922)
Net		$ 58,801	$ 62,436
Reseller Relationships
Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization Period (in Years)		7 years	7 years
Gross		$ 853	$ 853
Accumulated Amortization		(853)	(853)
Net		$ 0	$ 0
Trade Names
Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization Period (in Years)		3 years	13 years 4 months
Gross		$ 780	$ 3,988
Accumulated Amortization		(78)	(524)
Net		$ 702	$ 3,464
Noncompete Agreements
Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization Period (in Years)		5 years 2 months 12 days	5 years 73 days
Gross		$ 1,032	$ 1,032
Accumulated Amortization		(682)	(451)
Net		$ 350	$ 581