Note 11. Financing arrangements (Details) (USD $)
1 Months Ended 0 Months Ended 3 Months Ended 12 Months Ended 1 Months Ended 12 Months Ended 1 Months Ended 0 Months Ended 1 Months Ended 1 Months Ended 0 Months Ended 1 Months Ended 12 Months Ended 12 Months Ended 1 Months Ended 12 Months Ended 12 Months Ended 12 Months Ended
Dec. 19, 2013
Nov. 09, 2010
Feb. 09, 2010
Dec. 26, 2010
Dec. 29, 2013
Dec. 30, 2012
May 16, 2011
May 10, 2010
Jan. 21, 2014
Subsequent Event [Member]
Senior Unsecured Notes [Member]
Jan. 21, 2014
Subsequent Event [Member]
Dec. 29, 2013
Capped Call Transactions [Member]
Sep. 27, 2013
Scenario, Previously Reported [Member]
2012 Revolving Credit Facility [Member]
Dec. 19, 2013
Scenario, Previously Reported [Member]
May 16, 2011
Scenario, Previously Reported [Member]
Dec. 19, 2013
Scenario, Previously Reported [Member]
Minimum [Member]
Sep. 27, 2013
Scenario, Adjustment [Member]
2012 Revolving Credit Facility [Member]
Dec. 19, 2013
Scenario, Adjustment [Member]
May 16, 2011
Scenario, Adjustment [Member]
May 10, 2010
Scenario, Adjustment [Member]
Dec. 19, 2013
Scenario, Adjustment [Member]
Maximum [Member]
Dec. 13, 2013
Letter of Credit [Member]
2012 Revolving Credit Facility [Member]
Dec. 13, 2013
Swing Line Sub-facility [Member]
2012 Revolving Credit Facility [Member]
Dec. 29, 2013
London Interbank Offered Rate (LIBOR) [Member]
2012 Revolving Credit Facility [Member]
Dec. 29, 2013
Senior Convertible Notes [Member]
Aug. 26, 2013
Senior Convertible Notes [Member]
Dec. 29, 2013
Senior Notes [Member]
Dec. 29, 2013
2.00 % Senior Exchangeable Notes [Member]
Dec. 29, 2013
Senior Unsecured Notes [Member]
Aug. 26, 2013
Senior Unsecured Notes [Member]
Dec. 30, 2012
Senior Unsecured Notes [Member]
Dec. 19, 2013
Term Loan [Member]
Dec. 29, 2013
Term Loan [Member]
Dec. 13, 2012
Term Loan [Member]
Dec. 30, 2012
Term Loan [Member]
Dec. 26, 2010
Term Loan [Member]
Dec. 29, 2013
2012 Revolving Credit Facility [Member]
Dec. 13, 2013
2012 Revolving Credit Facility [Member]
Sep. 27, 2013
2012 Revolving Credit Facility [Member]
Dec. 29, 2013
Minimum [Member]
Senior Convertible Notes [Member]
Dec. 29, 2013
Maximum [Member]
Senior Convertible Notes [Member]
Sep. 27, 2013
Maximum [Member]
2012 Revolving Credit Facility [Member]
Note 11. Financing arrangements (Details) [Line Items]                                                                                  
Secured Debt     $ 450,000,000   $ 296,135,000 $ 216,295,000                                       $ 110,200,000                              
Debt Instrument, Fee Amount     11,100,000                                                                            
Payments of Financing Costs     10,000,000   416,000 2,597,000                                                                      
Unsecured Debt   200,000,000                                           111,733,000       94,064,000   200,000,000 214,000,000       200,000,000            
Repayments of Secured Debt       196,000,000                                                                          
Debt Instrument, Interest Rate, Effective Percentage                           3.75%       2.50%                                              
Debt Instrument, Basis Spread on Variable Rate         3.00%               4.00% 4.75%     3.00% 3.50%         1.00%                 0.50%       0.50%          
Debt Instrument Basis Spread On LIBOR Floor Rate                           1.75%       1.25%                                              
Debt Instrument, Prepayment Penalty             2,500,000                                                                    
Line of Credit Facility, Maximum Borrowing Capacity               65,000,000       50,000,000       70,000,000     40,000,000   25,000,000 15,000,000                     100,000,000     50,000,000 50,000,000        
Debt, Covenant Terms, Leverage Ratio                                                                 2.75                
Line of Credit Facility, Commitment Fee Amount                                                                   1,100,000              
LIBOR Floor Rate On Term Loan         1.25%               1.25%       0.75%                             0.75%                  
Proceeds from Issuance of Unsecured Debt                                                             82,000,000                    
General Restricted Payments Basket                             50,000,000         75,000,000                       75,000,000       50,000,000          
Debt Issuance Cost 2,100,000                                             4,500,000                                  
Amortization of Debt Discount (Premium) 1,800,000                                                                                
Debt, Interest Rate Basis                                                               2.00%                  
Debt, Default Rate                                                               2.00%       2.00%          
Percentage Of Prepayment Premium         1.00%                                                                        
Debt Instrument, Payment Terms         The Term Loan Facility is subject to mandatory prepayments in an amount equal to: (a) 100% of the net cash proceeds from the sale or other disposition of all or any part of the assets or extraordinary receipts of Spansion Inc. or any of its subsidiaries, in excess of $10 million per fiscal year, respectively, subject to certain reinvestment rights, (b) all casualty and condemnation proceeds received by Spansion Inc. or any of its subsidiaries in excess of $10 million individually or in an aggregate amount, subject to certain reinvestment rights, (c) 50% of the net cash proceeds received by Spansion Inc. or any of its subsidiaries from the issuance of debt after the closing date of the Term Loan Facility (other than certain permitted indebtedness) and (d) 50% of excess cash flow of Spansion Inc. and its subsidiaries, or 25%, if Spansion LLC has a leverage ratio of 2.5 to 1.0 or less, respectively.                                                                        
Debt, Prepayment Terms, Percentage of Net Cash Proceeds From Sale of Any Assets In Excess of $10 Million Per Fiscal Year         100.00%                                                                        
Debt, Prepayment Terms, Threshold of Net Cash Proceeds from Sale of Any Assets         10,000,000                                                                        
Debt, Prepayment Terms, Threshold of Casualty and Condemnation Proceeds Received         10,000,000                                                                        
Debt, Prepayment Terms, Percentage of Net Cash Proceeds Received From The Issuance of Debt         50.00%                                                                        
Debt, Prepayment Terms, Percentage of Excess Cash Flow         50.00%                                                                        
Debt, Prepayment Terms, Percentage of Excess Cash Flow With A Leverage Ratio of 2.5 to 1.0 or Less         25.00%                                                                        
Debt, Prepayment Terms, Leverage Ratio         2.5                                                                        
Debt Instrument, Covenant Compliance                                                       As of December 29, 2013, the Company was in compliance of the covenants under the Senior Notes indenture.       As of December 29, 2013, the Company was in compliance with all of the Term Loan Facility's covenants.                  
Line of Credit Facility, Potential Increase in Maximum Borrowing Capacity                                                                       230,000,000          
Line of Credit Facility, Potential Additional Borrowing Capacity With A Senior Secured Leverage Ratio of 2.75 to 1.00                                                                       50,000,000          
Line of Credit Facility, Covenant Terms, Leverage Ratio                                                                       2.75          
Debt Maturity                                                                       5 years          
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage                                                                       0.375%          
Contractual Terms Relating To Revolving Credit Facility In Percentage                                                                       100.00%          
Contractual Terms Relating To Revolving Credit Facility In Dollars                                                                       10,000,000          
Minimum Fixed Coverage Ratio                                                                       1.25          
Maximum Leverage Ratio                                                                       3.5          
Threshold in Outstanding Balance                                                                       5,000,000          
Line of Credit Facility, Covenant Terms, Consolidated quick ratio                                                                           1.25      
Line of Credit Facility, Covenant Terms, Consolidated Cash, Cash Equivalent and Short-term Marketable Investments                                                                                 150,000,000
Line of Credit Facility, Covenant Compliance                                                                       the Company was in compliance with all of the 2012 Revolving Credit Facility's covenants.          
Line of Credit Facility, Amount Outstanding                                                                       0          
Debt Instrument, Face Amount                 94,000,000                             150,000,000 150,000,000                                
Debt Instrument, Maturity Date                                               Sep. 01, 2020                                  
Debt Instrument, Interest Rate, Stated Percentage                                               2.00%       7.875%   7.875%                      
Dividends, Limited by Restricted Covenant Terms                                               100,000,000                                  
Debt Instrument, Convertible, Number of Equity Instruments1                                               72.0929                                  
Portion of Exchangable Note Used in Ratio                                               1,000                                  
Debt Instrument, Convertible, Conversion Price (in Dollars per share)                                               $ 13.87                                  
Proceeds from Issuance of Senior Long-term Debt                                               145,500,000                                  
Adjustments to Additional Paid in Capital, Convertible Debt with Conversion Feature                                               39,800,000                                  
Debt Instrument, Unamortized Discount                                               38,267,000     3,300,000                            
Adjustments to Additional Paid in Capital, Equity Component of Convertible Debt, Subsequent Adjustments                                               1,200,000                                  
Debt Instrument, Convertible, Stock Price Trigger (in Dollars per share)                                                                             $ 13.87 $ 18.14  
Debt Conversion, Converted Instrument, Expiration or Due Date         Sep. 01, 2020                                                                        
Adjustments to Additional Paid in Capital, Other           200,000         15,400,000                                                            
Proceeds from Unsecured Notes Payable   195,600,000                                                                              
Debt Instrument, Repurchase Amount                                                         105,900,000                        
Debt Instrument, Redemption Price, Percentage                 103.938%                                                                
Aggregate Price for Senior Notes                   99,100,000                                                              
Debt, Events of Default Terms, Threshold of Judgement for Payment of Money         $ 81,800,000