SELLING, GENERAL AND ADMINISTRATIVE EXPENSES (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Selling, General and Administrative Expense [Abstract]
Compensation and benefits	$ 13,906	$ 11,770	$ 40,305	$ 31,870
Marketing costs	9,808	9,041	30,509	27,848
Amortization of intangible assets	10,118	9,717	27,995	29,290
Professional services	4,008	4,106	18,637	10,896
Marketing costs	7,325	6,021	18,598	18,805
Depreciation and amortization	2,390	2,112	7,156	5,408
Business Combination, Contingent Consideration Arrangement - Equator	0	0	(7,591)	(37,924)
Goodwill impairment	0	0	0	37,473
Other	3,783	3,981	12,110	15,637
Total	$ 51,338	$ 46,748	$ 147,719	$ 139,303