PRODUCT WARRANTY COSTS (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Changes in the carrying amount of product warranty accruals
Balance at beginning of year	$ 21,760	$ 20,650	$ 19,778
Accruals for warranties	10,940	17,194	17,094
Settlements	(11,804)	(16,175)	(16,211)
Foreign currency translation and other adjustments	(430)	91	(11)
Balance at end of year	$ 20,466	$ 21,760	$ 20,650