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Supplemental Balance Sheet Information Other Assets, Noncurrent (Details) - USD ($)
$ in Thousands
Dec. 26, 2015
Dec. 27, 2014
Other Assets, Noncurrent [Abstract]    
Life insurance policies $ 27,554 $ 27,603
Investment in limited partnerships 32,730 27,047
Restricted cash 1,745 0
Other 9,614 18,301
Other assets $ 71,643 $ 72,951