Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 333,395	$ 312,795
Accounts receivable, net	66,749	120,767
Inventories	96,674	76,936
Income tax receivable, net	9,184	6,573
Prepaid expenses and other current assets	22,045	20,339
Total current assets	528,047	537,410
Property, plant and equipment, net	359,034	331,856
In process research and development	41,800	42,501
Intangible assets, net	52,645	57,375
Goodwill	54,902	54,902
Deferred tax assets, net	18,192	11,286
Other assets	1,846	2,154
Total assets	1,056,466	1,037,484
Current liabilities:
Accounts payable	58,974	45,966
Accrued expenses and other current liabilities	2,482	6,229
Accrued compensation	29,778	34,683
Contingent consideration, current portion	2,983	2,553
Provision for chargebacks	2,512	2,238
Deferred revenue, current portion	7,129	7,942
Total current liabilities	103,858	99,611
Contingent consideration, net of current portion	22,580	23,046
Long-term indebtedness	247,393	246,892
Deferred revenue, net of current portion	8,410	6,590
Other liabilities	1,553	1,328
Total liabilities	383,794	377,467
Stockholders' equity:
Preferred stock, $0.001 par value; 15,000,000 shares authorized, 0 shares issued and outstanding at both June 30, 2016 and December 31, 2015	0	0
Common stock, $0.001 par value; 200,000,000 shares authorized, 40,852,511 shares issued and 40,429,681 shares outstanding at June 30, 2016; 100,000,000 shares authorized, 39,829,408 shares issued and 39,406,578 shares outstanding at December 31, 2015	41	40
Treasury stock, at cost, 422,830 common shares at both June 30, 2016 and December 31, 2015	(6,420)	(6,420)
Additional paid-in capital	337,947	317,971
Accumulated other comprehensive loss	(3,080)	(2,713)
Retained earnings	344,184	351,139
Total stockholders' equity	672,672	660,017
Total liabilities and stockholders' equity	$ 1,056,466	$ 1,037,484