Revenue (Tables)

9 Months Ended

Sep. 30, 2012

Revenues [Abstract]

Sales Related Deductions Activity

The following table summarizes the provisions, and credits/payments, for government rebates and chargebacks, distribution-related fees, and other sales-related deductions; such amounts were not significant as of and for the nine months ended September 30, 2011.

	Rebates & Chargebacks			Distribution- Related Fees			Other Sales- Related Deductions			Total
Balance as of December 31, 2011	$	585		$	1,451		$	182		$	2,218
Provision related to current period sales	10,021			31,545			2,905			44,471
Credits/payments	(7,185		)	(16,847		)	(1,193		)	(25,225		)
Balance as of September 30, 2012	$	3,421		$	16,149		$	1,894		$	21,464