INCOME TAXES (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Effective income tax rate (as a percent)	(14.60%)	13.70%
Tax expense (benefit) computed at the maximum U.S. statutory rate, as a percent	21.00%
Amount of future financial taxable income needed to realize deferred tax assets	$ 250,900	$ 223,200
Undistributed earnings of the foreign subsidiaries	0
Income tax expense (benefit)	285	$ (1,838)
Deferred tax liabilities, indefinite-lived intangibles			$ 2,200
Unrecognized tax benefits	3,300		3,300
Accrued interest and penalties related to uncertain income tax positions	2,100
Discontinued Operations
Unrecognized tax benefits	1,400		$ 1,400
Accrued interest and penalties related to uncertain income tax positions	$ 1,700