EARNINGS PER SHARE - Schedule of antidilutive securities (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Net loss attributable to common stockholders, basic	$ (126,290)	$ (47,306)	$ (93,252)	$ (72,201)
Weighted-average common shares outstanding, diluted (in shares)	33,635,000	32,977,000	33,688,000	31,145,000
Net loss per share attributable to common stockholders, diluted (in USD per share)	$ (3.75)	$ (1.43)	$ (2.77)	$ (2.32)
Restricted Stock Units (RSUs) [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities (in shares)			3,581,000	2,588,000
Employee Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities (in shares)			25,000	7,000
Share-based Payment Arrangement
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities (in shares)			413,000	526,000
Senior Notes
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities (in shares)			2,701,000	2,701,000