ACQUISITION (Narrative) (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2020 USD ($)	Mar. 31, 2019 USD ($)
Business Acquisition [Line Items]
Number of acquisitions	1
Revenues	$ 651,359	$ 521,333
2020 Acquisition
Business Acquisition [Line Items]
Purchase price including contingent consideration	14,663
Contingent consideration fair value	4,042
Maximum amount of earnout payable	16,582
Intangible assets	6,300
Revenues	$ 1,043