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Income Taxes (Open Tax Years) (Details)
$ in Millions
12 Months Ended
Dec. 27, 2015
USD ($)
Income Tax Contingency [Line Items]  
Tax deposit, South Korea contingency $ 6.7
South Korea tax authority [Member]  
Income Tax Contingency [Line Items]  
Loss contingency, range of possible loss, maximum, South Korea income tax audit $ 6.7
Internal Revenue Service (IRS) [Member] | Earliest tax year [Member]  
Income Tax Contingency [Line Items]  
Tax year open to examination under the statute of limitations 2007
Internal Revenue Service (IRS) [Member] | Latest tax year [Member]  
Income Tax Contingency [Line Items]  
Tax year open to examination under the statute of limitations 2014
State and local jurisdiction [Member] | Earliest tax year [Member]  
Income Tax Contingency [Line Items]  
Tax year open to examination under the statute of limitations 2001
State and local jurisdiction [Member] | Latest tax year [Member]  
Income Tax Contingency [Line Items]  
Tax year open to examination under the statute of limitations 2014
Foreign tax authority [Member] | Earliest tax year [Member]  
Income Tax Contingency [Line Items]  
Tax year open to examination under the statute of limitations 2008
Foreign tax authority [Member] | Latest tax year [Member]  
Income Tax Contingency [Line Items]  
Tax year open to examination under the statute of limitations 2014
Minimum [Member] | South Korea tax authority [Member]  
Income Tax Contingency [Line Items]  
Income tax examination, year under examination 2008
Maximum [Member] | South Korea tax authority [Member]  
Income Tax Contingency [Line Items]  
Income tax examination, year under examination 2012