REVENUE RECOGNITION AND RELATED ALLOWANCES (Details) - USD ($) $ in Thousands	6 Months Ended
Jun. 30, 2016	Jun. 30, 2015
Valuation and Qualifying Accounts Disclosure
Beginning balance	$ 13,586
Ending balance	23,406
Chargebacks
Valuation and Qualifying Accounts Disclosure
Beginning balance	11,381	$ 6,865
Accruals/Adjustments	43,349	21,644
Credits Taken Against Reserve	(34,731)	(22,588)
Ending balance	19,999	5,921
Medicaid Rebates
Valuation and Qualifying Accounts Disclosure
Beginning balance	4,631	2,264
Accruals/Adjustments	5,773	2,177
Credits Taken Against Reserve	(3,895)	(2,550)
Ending balance	6,509	1,891
Returns
Valuation and Qualifying Accounts Disclosure
Beginning balance	2,648	1,445
Accruals/Adjustments	3,256	776
Credits Taken Against Reserve	(2,595)	(502)
Ending balance	3,309	1,719
Administrative Fees and Other Rebates
Valuation and Qualifying Accounts Disclosure
Beginning balance	1,653	1,487
Accruals/Adjustments	5,071	2,913
Credits Taken Against Reserve	(4,274)	(2,960)
Ending balance	2,450	1,440
Prompt Payment Discounts
Valuation and Qualifying Accounts Disclosure
Beginning balance	674	471
Accruals/Adjustments	2,180	1,231
Credits Taken Against Reserve	(1,678)	(1,217)
Ending balance	$ 1,176	$ 485

Amount of increase (decrease) in the allowances and reserves, which consist of the valuation and qualifying accounts that are either netted against the cost of an asset or that reflect a liability established to represent expected future costs, from adjustments.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 4
-Subparagraph (SX 210.12-09)
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690

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