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Fair Value Measurements (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2012
Jun. 25, 2011
Mar. 26, 2011
Jun. 26, 2010
Mar. 31, 2012
Fair Value, Measurements, Recurring [Member]
Jun. 25, 2011
Fair Value, Measurements, Recurring [Member]
Jun. 26, 2010
Fair Value, Measurements, Recurring [Member]
Mar. 31, 2012
Fair Value, Measurements, Recurring [Member]
Estimate of Fair Value, Fair Value Disclosure [Member]
Jun. 25, 2011
Fair Value, Measurements, Recurring [Member]
Estimate of Fair Value, Fair Value Disclosure [Member]
Mar. 31, 2012
Fair Value, Measurements, Recurring [Member]
Fair Value Measurements Using Level 1 [Member]
Jun. 25, 2011
Fair Value, Measurements, Recurring [Member]
Fair Value Measurements Using Level 1 [Member]
Mar. 31, 2012
Fair Value, Measurements, Recurring [Member]
Fair Value Measurements Using Level 2 [Member]
Jun. 25, 2011
Fair Value, Measurements, Recurring [Member]
Fair Value Measurements Using Level 2 [Member]
Mar. 31, 2012
Fair Value, Measurements, Recurring [Member]
Fair Value Measurements Using Level 3 [Member]
Jun. 25, 2011
Fair Value, Measurements, Recurring [Member]
Fair Value Measurements Using Level 3 [Member]
Mar. 31, 2012
Fair Value, Measurements, Nonrecurring [Member]
Jun. 25, 2011
Fair Value, Measurements, Nonrecurring [Member]
Mar. 31, 2012
Money market funds [Member]
Fair Value, Measurements, Recurring [Member]
Estimate of Fair Value, Fair Value Disclosure [Member]
Jun. 25, 2011
Money market funds [Member]
Fair Value, Measurements, Recurring [Member]
Estimate of Fair Value, Fair Value Disclosure [Member]
Mar. 31, 2012
Money market funds [Member]
Fair Value, Measurements, Recurring [Member]
Fair Value Measurements Using Level 1 [Member]
Jun. 25, 2011
Money market funds [Member]
Fair Value, Measurements, Recurring [Member]
Fair Value Measurements Using Level 1 [Member]
Mar. 31, 2012
Money market funds [Member]
Fair Value, Measurements, Recurring [Member]
Fair Value Measurements Using Level 2 [Member]
Jun. 25, 2011
Money market funds [Member]
Fair Value, Measurements, Recurring [Member]
Fair Value Measurements Using Level 2 [Member]
Mar. 31, 2012
Money market funds [Member]
Fair Value, Measurements, Recurring [Member]
Fair Value Measurements Using Level 3 [Member]
Jun. 25, 2011
Money market funds [Member]
Fair Value, Measurements, Recurring [Member]
Fair Value Measurements Using Level 3 [Member]
Mar. 31, 2012
Certificates of deposit [Member]
Fair Value, Measurements, Recurring [Member]
Estimate of Fair Value, Fair Value Disclosure [Member]
Jun. 25, 2011
Certificates of deposit [Member]
Fair Value, Measurements, Recurring [Member]
Estimate of Fair Value, Fair Value Disclosure [Member]
Mar. 31, 2012
Certificates of deposit [Member]
Fair Value, Measurements, Recurring [Member]
Fair Value Measurements Using Level 1 [Member]
Jun. 25, 2011
Certificates of deposit [Member]
Fair Value, Measurements, Recurring [Member]
Fair Value Measurements Using Level 1 [Member]
Mar. 31, 2012
Certificates of deposit [Member]
Fair Value, Measurements, Recurring [Member]
Fair Value Measurements Using Level 2 [Member]
Jun. 25, 2011
Certificates of deposit [Member]
Fair Value, Measurements, Recurring [Member]
Fair Value Measurements Using Level 2 [Member]
Mar. 31, 2012
Certificates of deposit [Member]
Fair Value, Measurements, Recurring [Member]
Fair Value Measurements Using Level 3 [Member]
Jun. 25, 2011
Certificates of deposit [Member]
Fair Value, Measurements, Recurring [Member]
Fair Value Measurements Using Level 3 [Member]
Mar. 31, 2012
Government agency securities [Member]
Fair Value, Measurements, Recurring [Member]
Estimate of Fair Value, Fair Value Disclosure [Member]
Jun. 25, 2011
Government agency securities [Member]
Fair Value, Measurements, Recurring [Member]
Estimate of Fair Value, Fair Value Disclosure [Member]
Mar. 31, 2012
Government agency securities [Member]
Fair Value, Measurements, Recurring [Member]
Fair Value Measurements Using Level 1 [Member]
Jun. 25, 2011
Government agency securities [Member]
Fair Value, Measurements, Recurring [Member]
Fair Value Measurements Using Level 1 [Member]
Mar. 31, 2012
Government agency securities [Member]
Fair Value, Measurements, Recurring [Member]
Fair Value Measurements Using Level 2 [Member]
Jun. 25, 2011
Government agency securities [Member]
Fair Value, Measurements, Recurring [Member]
Fair Value Measurements Using Level 2 [Member]
Mar. 31, 2012
Government agency securities [Member]
Fair Value, Measurements, Recurring [Member]
Fair Value Measurements Using Level 3 [Member]
Jun. 25, 2011
Government agency securities [Member]
Fair Value, Measurements, Recurring [Member]
Fair Value Measurements Using Level 3 [Member]
Mar. 31, 2012
Foreign currency forward contracts [Member]
Fair Value, Measurements, Recurring [Member]
Estimate of Fair Value, Fair Value Disclosure [Member]
Jun. 25, 2011
Foreign currency forward contracts [Member]
Fair Value, Measurements, Recurring [Member]
Estimate of Fair Value, Fair Value Disclosure [Member]
Mar. 31, 2012
Foreign currency forward contracts [Member]
Fair Value, Measurements, Recurring [Member]
Fair Value Measurements Using Level 1 [Member]
Jun. 25, 2011
Foreign currency forward contracts [Member]
Fair Value, Measurements, Recurring [Member]
Fair Value Measurements Using Level 1 [Member]
Mar. 31, 2012
Foreign currency forward contracts [Member]
Fair Value, Measurements, Recurring [Member]
Fair Value Measurements Using Level 2 [Member]
Jun. 25, 2011
Foreign currency forward contracts [Member]
Fair Value, Measurements, Recurring [Member]
Fair Value Measurements Using Level 2 [Member]
Mar. 31, 2012
Foreign currency forward contracts [Member]
Fair Value, Measurements, Recurring [Member]
Fair Value Measurements Using Level 3 [Member]
Jun. 25, 2011
Foreign currency forward contracts [Member]
Fair Value, Measurements, Recurring [Member]
Fair Value Measurements Using Level 3 [Member]
Mar. 31, 2012
Accrued Liabilities [Member]
Fair Value, Measurements, Recurring [Member]
Estimate of Fair Value, Fair Value Disclosure [Member]
Jun. 25, 2011
Accrued Liabilities [Member]
Fair Value, Measurements, Recurring [Member]
Estimate of Fair Value, Fair Value Disclosure [Member]
Mar. 31, 2012
Accrued Liabilities [Member]
Fair Value, Measurements, Recurring [Member]
Fair Value Measurements Using Level 1 [Member]
Mar. 31, 2012
Accrued Liabilities [Member]
Fair Value, Measurements, Recurring [Member]
Fair Value Measurements Using Level 2 [Member]
Jun. 25, 2011
Accrued Liabilities [Member]
Fair Value, Measurements, Recurring [Member]
Fair Value Measurements Using Level 2 [Member]
Mar. 31, 2012
Accrued Liabilities [Member]
Fair Value, Measurements, Recurring [Member]
Fair Value Measurements Using Level 3 [Member]
Jun. 25, 2011
Accrued Liabilities [Member]
Fair Value, Measurements, Recurring [Member]
Fair Value Measurements Using Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                                                                                                                
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases         $ 11,354 $ 8,800                                                                                                    
Business acquisition,cash paid for contingent consideration         (1,830)                                                                                                      
Cash and cash equivalents 860,551 962,541 868,923 826,512                           627,671 [1] 603,180 [1] 627,671 [1] 603,180 [1] 0 [1] 0 [1] 0 [1] 0 [1] 6,179 [1] 3,457 [1] 0 [1] 0 [1] 6,179 [1] 3,457 [1] 0 [1] 0 [1]                                              
Government agency securities 75,405 50,346                                                               75,405 [2] 50,346 [2] 0 [2] 0 [2] 75,405 [2] 50,346 [2] 0 [2] 0 [2]                              
Foreign currency forward contracts                                                                                   430 [3] 326 [3] 0 [3] 0 [3] 430 [3] 326 [3] 0 [3] 0 [3]              
Total Assets               709,685 657,309 627,671 603,180 82,014 54,129 0 0                                                                                    
Foreign currency forward contracts                                                                                   291 [4] 309 [4] 0 [4] 0 [4] 291 [4] 309 [4] 0 [4] 0 [4]              
Business Acquisition, Contingent Consideration, at Fair Value, Current                                                                                                   18,324 [4] 8,800 [4] 0 [4] 0 [4] 0 [4] 18,324 [4] 8,800 [4]
Total Liabilities               18,615 9,109 0 0 291 309 18,324 8,800                                                                                    
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value         18,324 8,800 0                                                                                                  
Fair Value, Assets Measured on Recurring Basis, Change in Unrealized Gain (Loss) Included in Other Income         $ 0 $ 0                                                                                                    
[1] Included in Cash and cash equivalents in the accompanying Condensed Consolidated Balance Sheets.
[2] Included in Short-term investments in the accompanying Condensed Consolidated Balance Sheets.
[3] Included in Other current assets in the Condensed Consolidated Balance Sheets.
[4] Included in Accrued expenses in the Condensed Consolidated Balance Sheets.