EARNINGS (LOSS) PER SHARE - Summary of Weighted Average Shares Outstanding (Details) - shares shares in Thousands	3 Months Ended			6 Months Ended	9 Months Ended	12 Months Ended
	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2021	Sep. 30, 2021	Dec. 31, 2021	Dec. 31, 2020
Earnings Per Share [Abstract]
Weighted average number of shares outstanding - basic (in shares)	11,900	11,900	11,698	11,800	11,834	11,851	6,123
Time-based RSUs (in shares)						88	0
Diluted shares outstanding (in shares)	11,904	11,900	15,325	13,791	12,359	11,939	6,123