GOODWILL AND OTHER INTANGIBLES (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Goodwill [Roll Forward]
Carrying amount, December 31, 2019			$ 36,204
Goodwill attributable to acquisitions			48,241
Foreign currency adjustments			296
Carrying amount, June 30, 2020	$ 84,741		84,741
Finite-Lived Intangible Assets, Net [Abstract]
Accumulated amortization	(5,098)		(5,098)		$ (3,045)
Net carrying amount	47,113		47,113
Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	7,669		7,669
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Gross Carrying Amount	59,880		59,880		14,517
Accumulated amortization	(5,098)		(5,098)		(3,045)
Net intangible assets	54,782		54,782		11,472
Amortization expense	1,624	$ 305	2,053	$ 607
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2020 (remaining)	2,813		2,813
2020	5,517		5,517
2021	5,482		5,482
2022	5,122		5,122
2023	5,000		5,000
Thereafter	23,179		23,179
Net carrying amount	47,113		47,113
Indefinite-lived intangible assets	7,669		7,669
Net intangible assets	54,782		54,782		11,472
Trade names
Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	7,669		7,669		0
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Indefinite-lived intangible assets	7,669		7,669		0
Customer relationships and other
Finite-Lived Intangible Assets, Net [Abstract]
Gross carrying amount	43,401		43,401		6,205
Accumulated amortization	(3,819)		(3,819)		(2,226)
Net carrying amount	39,582		39,582		3,979
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Accumulated amortization	(3,819)		(3,819)		(2,226)
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Net carrying amount	39,582		39,582		3,979
Developed technology
Finite-Lived Intangible Assets, Net [Abstract]
Gross carrying amount	8,629		8,629		8,200
Accumulated amortization	(1,248)		(1,248)		(819)
Net carrying amount	7,381		7,381		7,381
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Accumulated amortization	(1,248)		(1,248)		(819)
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Net carrying amount	7,381		7,381		7,381
Trade names
Finite-Lived Intangible Assets, Net [Abstract]
Gross carrying amount	181		181		112
Accumulated amortization	(31)		(31)		0
Net carrying amount	150		150		112
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Accumulated amortization	(31)		(31)		0
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Net carrying amount	$ 150		$ 150		$ 112