Summary of Significant Accounting Policies (Details 2) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Reduction to gross Company product sales:
Company product sales, net	$ 18,295	$ 17,025	$ 38,148	$ 32,447
Gross-To-Net Sales Adjustments
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross Company product sales	66,744	44,563	121,044	71,386
Reduction to gross Company product sales:
Chargebacks and billbacks	44,090	27,059	74,105	39,404
Sales discounts and other allowances	6,766	6,411	14,615	11,698
Total reduction to gross product sales	50,856	33,470	88,720	51,102
Company product sales, net	$ 15,888	$ 11,093	$ 32,324	$ 20,284

Chargebacks and billbacks.

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 605
-SubTopic 50
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=68069731&loc=d3e63676-111659

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(1)(a))
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 605
-SubTopic 15
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=68051624&loc=d3e47468-111626

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1(a))
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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