ACCOUNTS PAYABLE AND ACCRUED EXPENSES (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
ACCOUNTS PAYABLE AND ACCRUED EXPENSES
Accounts payable	$ 33,010	$ 37,401
Accrued compensation	24,046	40,371
Accrued sales discounts, allowances and reserves	31,652	28,449
Accrued taxes	20,627	1,195
Accrued other	48,145	61,319
Total accounts payable and accrued expenses	$ 157,480	$ 168,735