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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)
In Thousands
9 Months Ended
Sep. 30, 2011
Sep. 30, 2010
Cash flows from operating activities:  
Net income (loss)$ (14,337)$ 117,833
Adjustments to reconcile net income (loss) to net cash provided by operating activities:  
Stock-based compensation21,53823,228
Depreciation8,5887,233
Amortization of intangible assets12,9083,587
Non-cash interest expense and amortization of convertible debt issuance costs9,3268,241
Deferred tax benefit(3,413)(98)
Non-cash acquisition of patents(3,000) 
Loss on sale of marketable security 83
Change in operating assets and liabilities, net of effects of acquisition:  
Accounts receivable2,823794
Prepaid expenses and other assets5,5501,597
Accounts payable12,559(2,445)
Accrued salaries and benefits and other accrued liabilities(7,755)20,251
Accrued litigation expenses5,770(1,257)
Income taxes payable2,174247
Deferred revenue(1,720)87
Net cash provided by operating activities51,011179,381
Cash flows from investing activities:  
Acquisition of business, net of cash acquired(167,381)(2,000)
Purchases of marketable securities(94,189)(319,111)
Maturities of marketable securities254,322218,481
Purchases of property, plant and equipment(14,950)(13,100)
Acquisition of intangible assets(210)(5,500)
Proceeds from sale of marketable security111,682
Net cash used in investing activities(22,397)(119,548)
Cash flows from financing activities:  
Amount paid for actual value of shares put back(100,000) 
Proceeds received from issuance of contingently redeemable common stock and common stock pursuant to the settlement agreement with Samsung 192,000
Proceeds received from issuance of common stock under employee stock plans9,48210,899
Proceeds from landlord for tenant improvements8,800 
Payments under installment payment arrangement(861)(1,550)
Principal payments against financing lease obligation(453) 
Prepayment under share purchase contract (90,000)
Repayment of convertible senior notes (136,950)
Repurchase and retirement of common stock (105,108)
Net cash used in financing activities(83,032)(130,709)
Net decrease in cash and cash equivalents(54,418)(70,876)
Cash and cash equivalents at beginning of period215,262289,073
Cash and cash equivalents at end of period160,844218,197
Non-cash investing and financing activities:  
Common stock issued pursuant to acquisition88,438 
Property, plant and equipment received and accrued in accounts payable and other accrued liabilities1,1945,869
Non-cash obligation for property, plant and equipment 800
Intangible assets acquired under installment payment arrangement $ 331