SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Customer Concentration (Details) - USD ($) $ in Thousands	3 Months Ended	7 Months Ended	8 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2019	Sep. 03, 2019	Dec. 31, 2021	Dec. 31, 2020
Concentration Risk [Line Items]
Net revenues		$ 80,415	$ 140,738	$ 337,596	$ 282,914
Accounts Receivable, after Allowance for Credit Loss, Current				62,813	50,589
Revenue Benchmark | Customer Concentration Risk | Customer A
Concentration Risk [Line Items]
Net revenues		$ 20,972	$ 27,814	$ 93,730	$ 80,901
Concentration risk, percentage		26.10%	19.80%	27.80%	28.60%
Revenue Benchmark | Customer Concentration Risk | Customer B
Concentration Risk [Line Items]
Net revenues		$ 17,106	$ 30,650	$ 63,838	$ 50,485
Concentration risk, percentage		21.30%	21.80%	18.90%	17.80%
Accounts Receivable | Customer Concentration Risk | Customer A
Concentration Risk [Line Items]
Concentration risk, percentage	15.00%			21.00%
Accounts Receivable, after Allowance for Credit Loss, Current				$ 13,161	$ 7,582
Accounts Receivable | Customer Concentration Risk | Customer B
Concentration Risk [Line Items]
Concentration risk, percentage	6.80%			24.20%
Accounts Receivable, after Allowance for Credit Loss, Current				$ 15,174	$ 3,447