RESTRUCTURING CHARGES - Restructuring Charges (Details) - USD ($) $ in Thousands	3 Months Ended				12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2015	Dec. 31, 2014
Restructuring Cost and Reserve [Line Items]
Intangible assets impairment	$ 1,781	$ 0	$ 0	$ 0	$ 1,781
Total pre-tax restructuring expenses					4,177	$ 9,863
Selling, general and administrative expenses
Restructuring Cost and Reserve [Line Items]
Employee severance and related costs					8,559
Other costs					4,457
Fixed assets impairment					3,203
Intangible assets impairment					2,414
Other					445
Total pre-tax restructuring expenses					19,078
United States | Selling, general and administrative expenses
Restructuring Cost and Reserve [Line Items]
Employee severance and related costs					4,284
Other costs					2,963
Fixed assets impairment					3,133
Intangible assets impairment					2,167
Other					0
Total pre-tax restructuring expenses					12,547
International | Selling, general and administrative expenses
Restructuring Cost and Reserve [Line Items]
Employee severance and related costs					4,275
Other costs					1,494
Fixed assets impairment					70
Intangible assets impairment					247
Other					445
Total pre-tax restructuring expenses					$ 6,531