EARNINGS (LOSS) PER SHARE (Details) $ / shares in Units, shares in Thousands, $ in Thousands	1 Months Ended	3 Months Ended				6 Months Ended
	Feb. 29, 2020 $ / derivative shares	Jun. 30, 2021 USD ($) $ / shares shares	Mar. 31, 2021 USD ($)	Jun. 30, 2020 USD ($) $ / shares shares	Mar. 31, 2020 USD ($)	Jun. 30, 2021 USD ($) $ / shares shares	Jun. 30, 2020 USD ($) $ / shares shares
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Net income (loss) | $		$ 37,291	$ (6,617)	$ (20,740)	$ (25,372)	$ 30,674	$ (46,112)
Weighted-average common shares outstanding (in shares)		81,316		80,224		81,161	80,016
Earnings per share, basic (in dollars per share) | $ / shares		$ 0.46		$ (0.26)		$ 0.38	$ (0.58)
Interest expense associated with convertible debt instruments, net of tax | $		$ 1,351		$ 0		$ 0	$ 0
Numerator for diluted EPS | $		$ 38,642		$ (20,740)		$ 30,674	$ (46,112)
Convertible debt (in shares)		4,400
Effect of dilutive securities (in shares)		9,004		0		4,845	0
Weighted-average common shares outstanding, assuming dilution (in shares)		90,320		80,224		86,006	80,016
Earnings per share, diluted (in dollars per share) | $ / shares		$ 0.43		$ (0.26)		$ 0.36	$ (0.58)
Outstanding anti-dilutive stock options and RSUs (in shares)		19		5,929		22	5,939
Number of shares issuable upon conversion	4,400
Cap price (in dollars per share) | $ / derivative	196.44
Convertible debt
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Convertible debt (in shares)		4,443		0		0	0
Stock options
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Share-based payment arrangements (in shares)		3,266		0		3,416	0
RSUs
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Share-based payment arrangements (in shares)		1,295		0		1,429	0