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SELLING, GENERAL AND ADMINISTRATIVE EXPENSES (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Selling, General and Administrative Expense [Abstract]        
Compensation and benefits $ 15,541 $ 14,324 $ 28,047 $ 28,315
Occupancy related costs 9,538 8,799 19,811 17,882
Amortization of intangible assets 9,393 12,756 18,539 24,967
Professional services 4,367 6,696 8,097 13,436
Marketing costs 3,697 5,671 7,966 12,163
Depreciation and amortization 2,361 2,352 4,782 4,957
Other 7,573 3,609 12,929 6,103
Total $ 52,470 $ 54,207 $ 100,171 $ 107,823