CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Revenues:
Product sales	$ 79,432	$ 82,917	$ 249,864	$ 251,148
Royalties, fees and other	3,835	3,536	12,609	11,598
Total revenues	83,267	86,453	262,473	262,746
Cost of product sales	25,529	28,632	76,170	83,569
Gross profit	57,738	57,821	186,303	179,177
Operating expenses:
Research and development	8,037	9,244	21,460	26,537
Sales and marketing	25,752	26,156	81,124	79,898
General and administrative	9,479	9,723	26,372	26,048
Amortization of intangible assets	1,338	1,315	3,972	3,932
Exit costs	2,814		5,304
Investigation and restatement related costs	5,963	(99)	12,145	3,245
Total operating expenses	53,383	46,339	150,377	139,660
Income from operations	4,355	11,482	35,926	39,517
Foreign exchange gain (loss)	(902)	1,323	(160)	(2,711)
Interest and other expense, net	(126)	(96)	(501)	(287)
Other income (expense)	(1,028)	1,227	(661)	(2,998)
Income from continuing operations before income taxes	3,327	12,709	35,265	36,519
Income tax provision	898	3,536	9,677	9,984
Net income from continuing operations	2,429	9,173	25,588	26,535
Income (loss) from discontinued operations, net of taxes		85	1,911	(368)
Net income	2,429	9,258	27,499	26,167
Accrued dividend and accretion charges on Series A 3% Redeemable Convertible Preferred Stock	(857)	(820)	(2,546)	(2,434)
Net income available to common stockholders	$ 1,572	$ 8,438	$ 24,953	$ 23,733
Weighted average shares outstanding:
Basic (in shares)	27,466	27,017	27,335	26,972
Diluted (in shares)	27,855	27,323	27,755	27,299
Earnings per share from continuing operations applicable to common stockholders:
Basic (in dollars per share)	$ 0.05	$ 0.25	$ 0.70	$ 0.74
Diluted (in dollars per share)	$ 0.05	$ 0.25	$ 0.68	$ 0.73
Earnings per share applicable to common stockholders:
Basic (in dollars per share)	$ 0.05	$ 0.26	$ 0.75	$ 0.72
Diluted (in dollars per share)	$ 0.05	$ 0.25	$ 0.74	$ 0.72