ACCOUNTS RECEIVABLE - Activity in Allowances for Doubtful Accounts and Sales Returns (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	$ 2,068	$ 3,013	$ 3,497
Charges to Revenue	2,609	1,367	1,896
Charges (Credits) to Expense	1,533	299	(396)
Deductions from Reserves	(3,357)	(2,611)	(1,984)
Balance at End of Period	$ 2,853	$ 2,068	$ 3,013