Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 308,718	$ 280,499
Accounts receivable	57,037	58,834
Inventories	80,070	65,674
Deferred tax assets, current portion, net	1,483	1,710
Income tax receivable, net	3,433	1,357
Prepaid expenses and other current assets	22,749	24,101
Total current assets	473,490	432,175
Property, plant and equipment, net	327,643	313,979
In process research and development	42,501	60,628
Intangible assets, net	59,738	58,344
Goodwill	52,585	52,585
Deferred tax assets, long-term portion, net	13,747	12,764
Other assets	6,844	8,216
Total assets	976,548	938,691
Current liabilities:
Accounts payable	41,248	40,930
Accrued expenses and other current liabilities	4,214	6,274
Accrued compensation	30,089	31,654
Contingent consideration, current portion	2,490	6,487
Provision for chargebacks	1,950	2,246
Deferred revenue	8,734	5,345
Total current liabilities	88,725	92,936
Contingent consideration, net of current portion	22,271	34,599
Long-term indebtedness	253,000	251,000
Deferred revenue, net of current portion	5,987	5,713
Other liabilities	1,253	1,242
Total liabilities	$ 371,236	$ 385,490
Commitments and contingencies
Stockholders' equity:
Preferred stock, $0.001 par value; 15,000,000 shares authorized, 0 shares issued and outstanding at both September 30, 2015 and December 31, 2014	$ 0	$ 0
Common stock, $0.001 par value; 100,000,000 shares authorized, 39,305,269 shares issued and 38,885,080 shares outstanding at September 30, 2015; 38,129,872 shares issued and 37,709,683 shares outstanding at December 31, 2014	39	38
Treasury stock, at cost, 420,189 common shares at both September 30, 2015 and December 31, 2014	(6,320)	(6,320)
Additional paid-in capital	297,953	274,222
Accumulated other comprehensive loss	(4,152)	(3,008)
Retained earnings	317,792	288,269
Total stockholders' equity	605,312	553,201
Total liabilities and stockholders' equity	$ 976,548	$ 938,691