SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Product Warranty Accrual Included in Other Accrued Liabilities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Movement in Standard and Extended Product Warranty Accrual, Increase (Decrease) [Roll Forward]
Balance as of January 1	$ 20,570	$ 22,575
Provision for warranties issued in current year	5,061	4,334
Net adjustment to warranty accrual	(170)	(228)
Payments	(3,416)	(6,111)
Balance as of December 31	$ 22,045	$ 20,570