Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Cash flows from operating activities:
Net income (loss)	$ 53,408	$ (375,414)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization expense	17,225	17,567
Stock-based compensation expense	59,067	59,758
Other non-cash based compensation expense	5,469	4,408
Secured notes (due 2012) discount amortization expense		9,187
Change in fair value of derivative instruments		7,818
Deferred income taxes	19,310	9,330
Write-down of inventories to net realizable value	78,000
Other non-cash items, net	130	(223)
Changes in operating assets and liabilities, excluding the effect of the acquisition of a variable interest entity (Alios):
Accounts receivable, net	(2,483)	(83,714)
Inventories	(34,288)	(52,086)
Prepaid expenses and other current assets	(28,179)	(8,692)
Accounts payable	(15,313)	30,147
Accrued expenses and other liabilities	9,310	995
Excess tax benefit from share-based payment arrangements	(1,214)
Accrued restructuring expense	(1,483)	(1,390)
Accrued interest		(112)
Income taxes payable (Alios)	(11,874)	15,212
Deferred revenues	(25,764)	(35,614)
Net cash provided by (used in) operating activities	121,321	(402,823)
Cash flows from investing activities:
Purchases of marketable securities	(777,604)	(135,109)
Sales and maturities of marketable securities	502,188	788,029
Payment for acquisition of a variable interest entity (Alios)		(60,000)
Expenditures for property and equipment	(21,698)	(15,281)
Increase in restricted cash		(24)
Decrease (increase) in restricted cash and cash equivalents (Alios)	(4,146)	1,477
Increase in other assets	(485)	(350)
Net cash provided by (used in) investing activities	(301,745)	578,742
Cash flows from financing activities:
Excess tax benefit from share-based payment arrangements	1,214
Issuances of common stock from employee benefit plans	158,003	88,673
Payments to redeem a portion of secured notes (due 2012)		(50,000)
Net cash provided by financing activities	159,217	38,673
Effect of changes in exchange rates on cash	(52)	406
Net increase (decrease) in cash and cash equivalents	(21,259)	214,998
Cash and cash equivalents-beginning of period	475,320	243,197
Cash and cash equivalents-end of period	454,061	458,195
Supplemental disclosure of cash flow information:
Cash paid for interest	6,700	6,812
Capitalization of construction in-process related to financing lease transactions	104,341	9,887
Assets acquired under capital lease	$ 29,072