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Assets Held for Sale - Schedule of Assets Held for Sale Activity (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 30, 2017
Dec. 31, 2016
Long Lived Assets Held For Sale [Line Items]    
Balance at beginning of year $ 3,492,062  
Balance at end of the year 3,727,007 $ 3,492,062
Discontinued Operations, Held-for-sale [Member]    
Long Lived Assets Held For Sale [Line Items]    
Balance at beginning of year 21,039 5,459
Transfers in 4,099 23,201
Assets sold (19,463) (7,496)
Tangible asset impairment charges (497) (125)
Balance at end of the year $ 5,178 $ 21,039