INCOME TAXES (Additional Information) (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended	12 Months Ended
	Oct. 31, 2018	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Accumulated Other Comprehensive Income (Loss) [Line Items]
Effective income tax rate (as a percent)			30.50%	(71.60%)	557.50%
Net benefit from enacted tax act		$ (93,000)	$ 300
Tax benefit for the remeasurement of deferred tax assets and liabilities		100,500		$ 100,500
One-time tax expense on deemed repatriation		7,500		7,500
One-time deemed repatriation, adjusted				6,600
Adjustment from one-time deemed repatriation to tax expense			900
Tax benefit due to reduction in net deferred tax liability		93,000		99,900
Deferred expense			600
Benefit to income tax expense	$ 3,300		9,800
Additional income tax benefit upon amendments of 2014 through 2016 tax returns	$ (7,100)
Valuation allowance		68,355	79,295	68,355
Valuation allowance, foreign tax credits		17,500	16,500	17,500
Valuation allowance, federal net operating loss carryforwards		3,900	800	3,900
Valuation allowance, state net operating loss carryforwards		11,900	9,600	11,900
Valuation allowance, foreign net operating loss carryforwards		22,600	22,700	22,600
Valuation allowance, deferred tax assets of Canadian subsidiary		12,500	26,600	12,500
Valuation allowance, deferred tax assets of Canadian subsidiary, tax attributes			3,100
Unrecognized tax benefits that would impact effective tax rate		5,100	3,200	5,100	$ 1,700
Unrecognized tax benefits, income tax penalties and interest accrued		$ 900	800	900	300
Unrecognized tax benefits, penalties and interest			(100)	$ 500	100
Reduction in unrecognized tax benefit from the expiration of statue of limitations and the resolution of tax audits			$ 600
Foreign Currency Translation Adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Tax effects					$ 5,000