CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Revenues:
Product sales	$ 89,978	$ 87,478
Royalties, fees and other	6,078	4,870
Total revenues	96,056	92,348
Cost of product sales	28,438	28,328
Gross profit	67,618	64,020
Operating expenses:
Research and development	8,028	8,445
Sales and marketing	30,526	30,332
General and administrative	14,151	7,458
Amortization of intangible assets	524	423
Exit costs	0	0
Investigation and restatement related costs	5,187	3,893
Total operating expenses	58,416	50,551
Income from operations	9,202	13,469
Non-operating gains (losses)	(1,127)	522
Income before income taxes	8,075	13,991
Income tax provision	1,857	2,806
Net income	6,218	11,185
Accrued dividend and accretion charges on Series A 3% Redeemable Convertible Preferred Stock	(2,591)	(919)
Net income available to common stockholders	3,627	10,266
Other comprehensive income (loss)
Foreign currency translation adjustments	469	(1,099)
Total comprehensive income	$ 6,687	$ 10,086
Weighted average shares outstanding:
Basic (in shares)	31,837	28,055
Diluted (in shares)	32,654	28,785
Earnings per share applicable to common stockholders:
Basic (in dollars per share)	$ 0.11	$ 0.30
Diluted (in dollars per share)	$ 0.10	$ 0.30