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Supplemental Cash Flow Information (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 30, 2017
Dec. 31, 2016
Dec. 26, 2015
Supplemental Cash Flow Information [Abstract]      
Interest $ 49,311 $ 29,391 $ 24,033
Income taxes 221,832 205,196 180,897
Unrealized gain (loss) from foreign currency hedging activities (1,515) (1,025) 2,147
Debt assumed as part of acquisitions 400 $ 63,800 $ 5,000
Business Acquisition, increased ownership, non-cash transaction $ 17,600