Consolidated Statements of Operations (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Net revenues	$ 66,172	$ 73,606
Operating expenses*:
Cost of goods sold	15,089	16,602
Research and development	11,858	11,993
Selling, general and administrative	44,310	46,946
Total operating expenses	71,257	75,541
Loss from operations	(5,085)	(1,935)
Investment income (loss), net	(71)	187
Interest expense	(3,004)	0
Net loss	(8,160)	(1,748)
Basic and diluted net loss per common share (in dollars per share)	$ (0.17)	$ (0.04)
Weighted average common shares outstanding (in shares)	49,247,332	48,250,572
*includes the following amounts of stock-based compensation expense:
Stock-based compensation expense	3,759	3,678
Cost of goods sold
*includes the following amounts of stock-based compensation expense:
Stock-based compensation expense	30	20
Research and development
*includes the following amounts of stock-based compensation expense:
Stock-based compensation expense	698	607
Selling, general and administrative
*includes the following amounts of stock-based compensation expense:
Stock-based compensation expense	$ 3,031	$ 3,051