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Basis of Presentation (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Oct. 01, 2017
Oct. 01, 2017
Sep. 25, 2016
Apr. 02, 2017
Dec. 25, 2016
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Payments Related To Tax Withholding For Share Based Compensation   $ 31,973 $ 21,914    
Backflip Studios, LLC [Member]          
Redeemable Noncontrolling Interest [Line Items]          
MinorityInterestOwnershipPercentageByParent         70.00%
Noncontrolling Interest, Remaining Ownership Percentage Acquired by Parent   30.00%      
Accounting Standards Update 2016-09 [Member]          
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Excess Tax Benefit from Share-based Compensation, Operating Activities   $ 20,478 19,712    
Payments Related To Tax Withholding For Share Based Compensation   31,973 $ 21,914    
Excess Tax Benefit From Share-based Compensation Recorded To Income Tax Expense $ 5,014 $ 20,478      
New Accounting Pronouncement Or Change In Accounting Principle Cumulative Effect Of Change On Equity Or Net Assets       $ 700