Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $)
In Thousands, unless otherwise specified
9 Months Ended
Sep. 28, 2014
Sep. 29, 2013
Cash Flows from Operating Activities:    
Net loss $ (45,315) $ (54,570)
Adjustments to reconcile net loss to net cash provided by operating activities:    
Depreciation and amortization 80,540 65,053
Gain on liquidation of auction rate securities   (1,200)
Gain on recovery of impaired investments (1,629) (9,592)
Benefit for deferred income taxes (3,394) (3,728)
Gain on pension assets (2,494)  
Net gain on sale and disposal of property, plant and equipment (46) (3,084)
Gain on acquisition of Microcontroller and Analog business   (8,205)
Costs relating to partial repurchase of 7.875% Senior Notes 1,137 2,280
Compensation recognized under employee stock plans 25,078 23,324
Reserve reversal on final settlement of bankruptcy claims (3,205)  
Changes in assets and liabilities 30,955 60,265
Net cash provided by operating activities 81,627 70,543
Cash Flows from Investing Activities:    
Proceeds from liquidation of auction rate securities   1,530
Proceeds from recovery of impaired investments 1,629 9,592
Proceeds from sale of property, plant and equipment 136 3,206
Purchases of property, plant and equipment (34,857) (42,760)
Proceeds from sales and maturities of marketable securities 18,463 116,888
Purchases of marketable securities (37,813) (100,535)
Acquisition of Microcontroller and Analog business, net of cash acquired   (148,144)
Net cash used for investing activities (52,442) (160,223)
Cash Flows from Financing Activities:    
Proceeds from issuance of common stock due to options exercised 14,198 2,303
Refinancing cost on Term Loan and Revolver   (282)
Payments on financing arrangements (105,651) (4,333)
Proceeds from issuance of 2.00% Senior Exchangeable Notes   150,000
Costs relating to issuance of 2.00% Senior Exchangeable Notes   (4,506)
Purchase of capped call for the 2.00% Senior Exchangeable Notes   (15,375)
Partial repurchase of 7.875% Senior Notes including costs   (106,779)
Net proceeds from sale of Sunnyvale property 58,908  
Cash settlement on hedging activities   (268)
Net cash provided by (used for) financing activities (32,545) 20,760
Effect of exchange rate changes on cash and cash equivalents (718) (232)
Net decrease in cash and cash equivalents (4,078) (69,152)
Cash and cash equivalents, beginning of period 286,069 262,177
Cash and cash equivalents, end of period 281,991 193,025
Non-cash investing and financing activities:    
Liabilities recorded for purchases of property, plant and equipment 21,064 10,448
Unpaid issuance costs relating to the 2.00% Senior Exchangeable Notes   460
Restricted cash relating to employee compensation and benefits received from FSL   $ 32,086