CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Cash flows from operating activities:
Net loss	$ (90,278)	$ (71,171)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	314	294
Accretion of debt discount	8,323	4,109
Gain on extinguishment of debt	(21,800)
Valuation change in warrant liability	2,785
Amortization of deferred financing costs	561	449
Stock compensation expense	5,165	5,651
Deferred income taxes		(13,955)
Other	116
Changes in:
Accounts receivable, net	(82)	(2,800)
Inventories, net	252	(4,864)
Prepaid expenses and other current assets	(2,106)	(2,185)
Other assets	(808)	4
Accounts payable	(3,104)	5,346
Accrued interest on convertible notes	(1,661)	1,912
Other current liabilities	5,944	(1,162)
Deferred revenues	74	(93)
Other liabilities	1,709	(6,887)
Net cash used in operating activities	(94,596)	(85,352)
Cash flows from investing activities:
Purchases of held-to-maturity securities	(45,071)	(48,952)
Proceeds from maturities of held-to-maturity securities	52,711	21,087
Capital expenditures	(1,549)	(165)
Change in restricted cash	(350)
Net cash provided by (used in) investing activities	5,741	(28,030)
Cash flows from financing activities:
Proceeds from issuance of common stock	412	667
Proceeds from issuance of debt, net of expenses	42,647	222,697
Net cash provided by financing activities	43,059	223,364
Effect of exchange rate changes	(111)
Net (decrease) increase in cash and cash equivalents	(45,907)	109,982
Cash and cash equivalents at beginning of period	114,094	44,791
Cash and cash equivalents at end of period	68,187	154,773
Other information:
Income tax paid
Interest paid	$ 9,764	$ 5,393