REVENUE RECOGNITION AND RELATED ALLOWANCES (Details) - USD ($) $ in Thousands	9 Months Ended
Sep. 30, 2015	Sep. 30, 2014
Valuation and Qualifying Accounts Disclosure
Beginning balance	$ 8,708
Ending balance	9,980
Chargebacks
Valuation and Qualifying Accounts Disclosure
Beginning balance	6,865	$ 4,076
Accruals/Adjustments	34,516	27,431
Credits Taken Against Reserve	(32,973)	(24,722)
Ending balance	8,408	6,785
Medicaid Rebates
Valuation and Qualifying Accounts Disclosure
Beginning balance	2,264	253
Accruals/Adjustments	4,785	1,434
Credits Taken Against Reserve	(2,621)	(411)
Ending balance	4,428	1,276
Returns
Valuation and Qualifying Accounts Disclosure
Beginning balance	1,445	736
Accruals/Adjustments	1,402	996
Credits Taken Against Reserve	(958)	(554)
Ending balance	1,889	1,178
Administrative Fees and Other Rebates
Valuation and Qualifying Accounts Disclosure
Beginning balance	1,487	735
Accruals/Adjustments	4,187	3,690
Credits Taken Against Reserve	(4,570)	(3,394)
Ending balance	1,104	1,031
Prompt Payment Discounts
Valuation and Qualifying Accounts Disclosure
Beginning balance	471	332
Accruals/Adjustments	1,942	1,243
Credits Taken Against Reserve	(1,813)	(1,152)
Ending balance	$ 600	$ 423

Total of the adjustments in a given period to allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 09

-Article 12

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Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs.

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