SELECTED QUARTERLY FINANCIAL DATA (UNAUDITED) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Quarterly Financial Information Disclosure [Abstract]
Net revenue	$ 804,713	$ 781,609	$ 740,848	$ 705,440	$ 720,779	$ 615,880	$ 497,266	$ 476,492	$ 3,032,610	$ 2,310,417	$ 1,939,791
Gross profit	183,762	174,153	166,320	158,029	175,642	137,773	101,390	98,194	682,264	512,999	422,215
Operating income	44,343	34,556	23,208	8,648	13,973	(11,725)	(8,005)	5,438	110,755	(319)	38,269
Net (loss) income	$ 17,839	$ 1,663	$ (7,668)	$ (19,910)	$ (15,811)	$ (42,794)	$ (13,603)	$ (3,712)	$ (8,076)	$ (75,920)	$ (6,115)
(Loss) earnings per share, basic (in dollars per share)	$ 0.10	$ 0.01	$ (0.04)	$ (0.11)	$ (0.09)	$ (0.26)	$ (0.10)	$ (0.03)
(Loss) earnings per share, diluted (in dollars per share)	$ 0.10	$ 0.01	$ (0.04)	$ (0.11)	$ (0.09)	$ (0.26)	$ (0.1)	$ (0.03)