ACCUMULATED OTHER COMPREHENSIVE INCOME (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2020 USD ($)
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	$ 154,364
Ending balance	274,882
Total Accumulated Other Comprehensive Income
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	513
Current period other comprehensive income	7,286
Ending balance	7,799
Minimum Pension Liability
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	(346)
Current period other comprehensive income	0
Ending balance	(346)
Foreign Currency Translation
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	859
Current period other comprehensive income	1,798
Ending balance	2,657
Foreign Currency Gain on Intra-Entity Transactions
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	0
Current period other comprehensive income	5,488
Ending balance	$ 5,488