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Taxes on Income - Summary of Income Tax Provision for Continuing Operations (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2016
Jan. 02, 2016
Jan. 03, 2015
Current income tax expense:      
Federal $ 22,936 $ 31,437 $ 27,015
State 3,210 3,144 777
Total current income tax expense 26,146 34,581 27,792
Deferred income tax expense (benefit):      
Federal 6,509 3,255 3,362
State 252 (743) 175
Total deferred income tax expense 6,761 2,512 3,537
Total income tax expense $ 32,907 $ 37,093 $ 31,329