Net Product Sales (Tables)

6 Months Ended

Jun. 30, 2014

Revenues [Abstract]

Sales Related Deductions Activity

The following table summarizes the provisions, and credits/payments, for these sales-related deductions during the six months ended June 30, 2014.

	Rebates & Chargebacks			Distribution- Related Fees			Other Sales- Related Deductions			Total
Balance as of December 31, 2013	$	4,400		$	19,663		$	538		$	24,601
Provision related to current period sales	14,817			36,206			818			51,841
Credits/payments	(15,077		)	(35,449		)	(834		)	(51,360		)
Balance as of June 30, 2014	$	4,140		$	20,420		$	522		$	25,082