CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 99,571	$ 338,696
Marketable securities	146,859	48,966
Accounts receivable	12,503	2,251
Prepaids and other current assets	7,283	8,253
Deferred taxes	1,069	205
Total current assets	267,285	398,371
Intangible assets, net	102,435	117,172
Goodwill	116,899	116,899
Property, plant and equipment, net	67,411	72,642
Deferred taxes, long-term	571	4,797
Other assets	3,090	3,498
Total assets	557,691	713,379
Current liabilities:
Accounts payable	5,465	7,001
Accrued salaries and benefits	14,410	33,448
Convertible notes, short-term	0	164,047
Other current liabilities	10,310	8,346
Total current liabilities	30,185	212,842
Convertible notes, long-term	112,316	109,629
Long-term imputed financing obligation	39,232	39,349
Long-term income taxes payable	1,789	6,561
Other long-term liabilities	7,863	4,769
Total liabilities	191,385	373,150
Commitments and contingencies (Notes 9 and 14)
Stockholders’ equity:
Convertible preferred stock, $.001 par value: Authorized: 5,000,000 shares Issued and outstanding: no shares at June 30, 2014 and December 31, 2013	0	0
Common stock, $.001 par value: Authorized: 500,000,000 shares Issued and outstanding: 114,384,666 shares at June 30, 2014 and 113,459,390 shares at December 31, 2013	114	113
Additional paid-in capital	1,141,428	1,128,148
Accumulated deficit	(774,880)	(787,727)
Accumulated other comprehensive loss	(356)	(305)
Total stockholders’ equity	366,306	340,229
Total liabilities and stockholders’ equity	$ 557,691	$ 713,379