Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 341,016	$ 312,795
Accounts receivable, net	69,560	120,767
Inventories	88,200	76,936
Income tax receivable, net	3,771	6,573
Prepaid expenses and other current assets	25,613	20,339
Total current assets	528,160	537,410
Property, plant and equipment, net	342,083	331,856
In process research and development	42,501	42,501
Intangible assets, net	55,010	57,375
Goodwill	54,902	54,902
Deferred tax assets, net	11,124	11,286
Other assets	2,117	2,154
Total assets	1,035,897	1,037,484
Current liabilities:
Accounts payable	45,611	45,966
Accrued expenses and other current liabilities	4,187	6,229
Accrued compensation	26,528	34,683
Contingent consideration, current portion	2,580	2,553
Provision for chargebacks	1,960	2,238
Deferred revenue	9,589	7,942
Total current liabilities	90,455	99,611
Contingent consideration, net of current portion	23,114	23,046
Long-term indebtedness	247,192	246,892
Deferred revenue, net of current portion	6,817	6,590
Other liabilities	1,337	1,328
Total liabilities	368,915	377,467
Stockholders' equity:
Preferred stock, $0.001 par value; 15,000,000 shares authorized, 0 shares issued and outstanding at both March 31, 2016 and December 31, 2015	0	0
Common stock, $0.001 par value; 100,000,000 shares authorized, 40,257,241 shares issued and 39,834,411 shares outstanding at March 31, 2016; 39,829,408 shares issued and 39,406,578 shares outstanding at December 31, 2015	40	40
Treasury stock, at cost, 422,830 common shares at March 31, 2016 and December 31, 2015	(6,420)	(6,420)
Additional paid-in capital	322,384	317,971
Accumulated other comprehensive loss	(4,152)	(2,713)
Retained earnings	355,130	351,139
Total stockholders' equity	666,982	660,017
Total liabilities and stockholders' equity	$ 1,035,897	$ 1,037,484