CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands		Jun. 30, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents		$ 305,969	$ 397,040	[1]
Short-term investments		197,318	195,579	[1]
Accounts receivable, net (allowance for doubtful accounts: $132 and $93, at June 30, 2016 and December 31, 2015, respectively)		214,158	164,959	[1]
Inventory		326,556	271,683	[1]
Other current assets		61,945	60,378	[1]
Total current assets		1,105,946	1,089,639	[1]
Noncurrent assets:
Long-term investments		201,620	425,652	[1]
Property, plant and equipment, net		724,494	704,207	[1]
Intangible assets, net		568,966	683,996	[1]
Goodwill		197,039	197,039	[1]
Deferred tax assets		266,182	220,191	[1]
Other assets		23,057	408,644	[1]
Total assets		3,087,304	3,729,368	[1]
Current liabilities:
Accounts payable and accrued liabilities		292,342	392,511	[1]
Short-term convertible debt, net		24,420
Short-term contingent acquisition consideration payable		47,818	52,946	[1]
Total current liabilities		364,580	445,457	[1]
Noncurrent liabilities:
Long-term convertible debt, net		645,685	662,286	[1]
Long-term contingent acquisition consideration payable		120,151	32,663	[1]
Deferred tax liabilities	[1]		143,527
Other long-term liabilities		39,312	44,588	[1]
Total liabilities		1,169,728	1,328,521	[1]
Stockholders’ equity:
Common stock, $0.001 par value: 250,000,000 shares authorized at June 30, 2016 and December 31, 2015: 163,282,081 and 161,526,044 shares issued and outstanding at June 30, 2016 and December 31, 2015, respectively		164	162	[1]
Additional paid-in capital		3,458,124	3,414,837	[1]
Company common stock held by Nonqualified Deferred Compensation Plan		(14,969)	(13,616)	[1]
Accumulated other comprehensive income		4,528	21,033	[1]
Accumulated deficit		(1,530,271)	(1,021,569)	[1]
Total stockholders’ equity		1,917,576	2,400,847	[1]
Total liabilities and stockholders’ equity		$ 3,087,304	$ 3,729,368	[1]

[1] December 31, 2015 balances were derived from the audited Consolidated Financial Statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2015, filed with the Securities and Exchange Commission (the SEC) on February 29, 2016.