Net Product Sales (Tables)

3 Months Ended

Mar. 31, 2013

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, 2013.

	Rebates & Chargebacks			Distribution- Related Fees			Other Sales- Related Deductions			Total
Balance as of December 31, 2012	$	2,983		$	15,298		$	545		$	18,826
Provision related to current period sales	11,121			29,422			498			41,041
Credits/payments	(10,081		)	(26,238		)	(511		)	(36,830		)
Balance as of June 30, 2013	$	4,023		$	18,482		$	532		$	23,037