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Description of Business and Summary of Significant Accounting Policies (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended 3 Months Ended 12 Months Ended
Jun. 28, 2014
item
Jun. 29, 2013
item
Jun. 30, 2012
item
Dec. 29, 2012
Hologram Business
Jun. 29, 2013
Hologram Business
Jun. 28, 2014
Demonstration units
Jun. 28, 2014
Minimum
Jun. 29, 2013
Minimum
Jun. 30, 2012
Minimum
Jun. 28, 2014
Minimum
Building and improvements
Jun. 28, 2014
Minimum
Machinery and equipment
Jun. 28, 2014
Minimum
Furniture and fixtures
Jun. 28, 2014
Minimum
Software
Jun. 28, 2014
Minimum
Office equipment
Jun. 28, 2014
Maximum
Jun. 28, 2014
Maximum
Building and improvements
Jun. 28, 2014
Maximum
Machinery and equipment
Jun. 28, 2014
Maximum
Furniture and fixtures
Jun. 28, 2014
Maximum
Software
Jun. 28, 2014
Maximum
Office equipment
Fiscal 2013 Out-of-Period Adjustments                                        
Impact of out-of-period adjustments to net income in the period recorded   $ 2.5                                    
Proceeds from sale of business                                        
Gross proceeds from sale of business       11.5 11.5                              
Restricted Cash                                        
Restricted cash 31.9 29.7                                    
Long-term restricted cash balances 6.6 6.5                                    
Investments                                        
Generally the maximum term of maturities classified as current assets included in short-term investments 12 months                                      
Goodwill                                        
Minimum percentage of likelihood that event occurrence is considered more likely than not 50.00%                                      
Fiscal Years                                        
Number of weeks in fiscal year 364 days 364 days 364 days       364 days 364 days 364 days           371 days          
Estimated useful lives           P5Y       P10Y P2Y P2Y P2Y P2Y   P50Y P20Y P5Y P5Y P5Y
Long-lived assets held for sale                                        
Classification as assets held for sale, period of time for expected sale 1 year                                      
Pension and Other Postretirement Benefits                                        
Classification as current, period of time for payment of benefits 12 months                                      
Concentration of Credit and Other Risks and Allowance for Doubtful Accounts                                        
Number of major customers based on accounts receivable and net revenue 0 0 0                                  
Rolling period for determination of material requirements 12 months                                      
Advertising Expense                                        
Advertising cost during the period 2.2 0.8 1.2                                  
Asset Retirement Obligations                                        
Asset retirement obligations included in other current liabilities 2.0 0.4                                    
Asset retirement obligations 5.1 8.8                                    
Changes in asset retirement obligations:                                        
Balance at Beginning of Period 9.2 10.8                                    
Liabilities Incurred 0.4                                      
Liabilities Settled (1.0) (1.8)                                    
Accretion Expense 0.4 0.5                                    
Revisions to Estimates (1.9) (0.3)                                    
Balance at End of Period $ 7.1 $ 9.2 $ 10.8