ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) - Changes in Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2022	Jun. 30, 2021
Changes in accumulated other comprehensive income (loss) [Abstract]
Net foreign currency translation adjustment	$ (6,951)		$ 1,524		$ (9,793)	$ (4,619)
Unrealized gain on cash flow hedge	1,122		456		3,206	1,133
Tax	(272)		(105)		(783)	(270)
Net of tax	850		351		2,423	863
Net change in postretirement benefit plan (see Note 15 for further information)
Amortization of prior service cost	2		19		4	37
Amortization of gain	0		(7)		0	(12)
Gain arising during the period and prior service credit	(9)		0		(41)	(4)
Total before tax	(7)		12		(37)	21
Tax	(27)		(4)		(24)	(6)
Net of tax and adjustment	(34)		8		(61)	15
Other comprehensive income (loss)	(6,135)	$ (1,296)	1,883	$ (5,624)	(7,431)	(3,741)
Cross-currency swap
Net change in postretirement benefit plan (see Note 15 for further information)
Tax expense (benefit) on net investment hedge	1,309		(336)		1,642	690
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net investment hedge (cross-currency swap), net of tax	3,963		(1,024)		5,086	2,173
Tax expense (benefit) on net investment hedge	$ 1,309		$ (336)		$ 1,642	$ 690