CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 273,451	$ 237,179
Accounts receivable	7,262	1,305
Inventory	969	419
Other current assets	7,705	6,043
Total current assets	289,387	244,946
Restricted cash	11,326	11,357
Property and equipment, net	178,602	108,777
Intangible and other assets, net	4,377	5,814
Total assets	483,692	370,894
Current liabilities:
Accounts payable	10,680	11,363
Current portion of long-term debt		4,200
Current portion of long-term facility lease obligation	4,971
Accrued compensation and benefits	14,427	12,778
Accrued product development expenses	13,793	16,740
Other accrued expenses	10,098	8,977
Current portion of deferred executive compensation		2,511
Current portion of deferred revenue	2,090	472
Other current liabilities	16,807	15,136
Total current liabilities	72,866	72,177
Convertible 3.625% senior notes, net	154,991
Other long-term debt		4,900
Long-term facility lease obligation	166,277	99,412
Other long-term liabilities	8,331	8,580
Deferred revenue	135	308
Stockholders' equity:
Preferred stock, $.01 par value; authorized 10,000,000 shares, none issued and outstanding	0	0
Common stock, $.001 par value; authorized, 450,000,000 shares in 2014 and 2013; issued and outstanding, 187,141,895 shares in 2014 and 185,611,272 shares in 2013	187	186
Additional paid-in capital	1,291,040	1,238,859
Accumulated other comprehensive income (loss)	(1,291)	(1,535)
Accumulated deficit	(1,208,844)	(1,051,993)
Total stockholders' equity	81,092	185,517
Total liabilities and stockholders' equity	$ 483,692	$ 370,894