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EARNINGS PER SHARE - Computation of Net Earnings (Loss) per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
EARNINGS PER SHARE
Net (loss) income	$ (7,199)	$ 457	$ (5,191)	$ (13,069)	$ (25,034)	$ 8,046	$ 72,843	$ 15,662	$ (25,002)	$ 71,517	$ 26,752
Adjustment for interest expense recognized on convertible senior notes:										4,675
Net (loss) income - diluted									$ (25,002)	$ 76,192	$ 26,752
Weighted-average shares outstanding - basic	33,582,202	34,058,802	34,001,553	33,673,912	34,123,309	35,373,909	35,302,608	34,951,740	33,829,495	34,936,817	34,407,959
Weighted-average shares outstanding - diluted (in shares)	33,582,202	34,570,319	34,001,553	33,673,912	34,123,309	36,261,174	41,286,853	41,160,092	33,829,495	41,045,805	35,151,353
(Loss) earnings per share - basic (in dollars per share)	$ (0.21)	$ 0.01	$ (0.15)	$ (0.39)	$ (0.73)	$ 0.23	$ 2.06	$ 0.45	$ (0.74)	$ 2.05	$ 0.78
(Loss) earnings per share - diluted (in dollars per share)	$ (0.21)	$ 0.01	$ (0.15)	$ (0.39)	$ (0.73)	$ 0.22	$ 1.79	$ 0.41	$ (0.74)	$ 1.86	$ 0.76
Stock options
EARNINGS PER SHARE
Effect of dilutive securities:										504,699	431,524
Restricted stock units
EARNINGS PER SHARE
Effect of dilutive securities:										461,471	271,542
Performance share units
EARNINGS PER SHARE
Effect of dilutive securities:										85,229	27,002
Employee stock purchase plan
EARNINGS PER SHARE
Effect of dilutive securities:										1,198	567
Warrants
EARNINGS PER SHARE
Effect of dilutive securities:										131,257	12,759
Convertible senior notes
EARNINGS PER SHARE
Effect of dilutive securities:										4,925,134

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- Definition

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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