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SELLING, GENERAL AND ADMINISTRATIVE EXPENSES (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Selling, General and Administrative Expense [Abstract]        
Compensation and benefits $ 11,991 $ 15,068 $ 37,757 $ 43,115
Occupancy related costs 7,428 8,536 23,051 28,347
Amortization of intangible assets 6,620 8,604 21,311 27,143
Marketing costs 4,267 3,992 11,852 11,958
Professional services 4,915 3,886 12,469 11,983
Depreciation and amortization 1,054 2,286 5,272 7,068
Other 10,054 4,250 20,665 17,179
Total $ 46,329 $ 46,622 $ 132,377 $ 146,793