CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Revenues:
Product sales	$ 87,470	$ 87,471	$ 174,947	$ 175,846
Royalties, fees and other	4,600	4,235	9,470	8,732
Total revenues	92,070	91,706	184,417	184,578
Cost of product sales	28,724	27,355	57,053	54,006
Gross profit	63,346	64,351	127,364	130,572
Operating expenses:
Research and development	8,659	7,899	17,103	15,493
Sales and marketing	30,218	28,842	60,550	59,042
General and administrative	8,683	8,154	16,141	16,642
Amortization of intangible assets	505	1,316	927	2,637
Exit costs	0	(938)	0	(778)
Investigation and restatement related costs	26,335	1,131	30,227	2,224
Total operating expenses	74,400	46,404	124,948	95,260
Income (loss) from operations	(11,054)	17,947	2,416	35,312
Non-operating gains (losses)	(392)	(1,147)	129	(761)
Income (loss) before income taxes	(11,446)	16,800	2,545	34,551
Income tax provision (benefit)	(4,667)	4,536	(1,860)	9,329
Net income (loss)	(6,779)	12,264	4,405	25,222
Accrued dividend and accretion charges on Series A 3% Redeemable Convertible Preferred Stock	(929)	(887)	(1,848)	(1,766)
Net income (loss) available to common stockholders	(7,708)	11,377	2,557	23,456
Other comprehensive income (loss)
Foreign currency translation adjustments	(344)	(778)	(1,443)	(386)
Total comprehensive income (loss)	$ (7,123)	$ 11,486	$ 2,962	$ 24,836
Weighted average shares outstanding:
Basic (in shares)	28,081	27,639	28,130	27,648
Diluted (in shares)	28,081	27,934	28,836	28,003
Earnings (loss) per share applicable to common stockholders:
Basic (in dollars per share)	$ (0.27)	$ 0.34	$ 0.08	$ 0.70
Diluted (in dollars per share)	$ (0.27)	$ 0.34	$ 0.07	$ 0.69