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Reconciliation of Effective Tax Amount (Detail) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 30, 2017
Dec. 28, 2019
Dec. 29, 2018
Dec. 30, 2017
Income Tax Disclosure [Abstract]        
Tax at U.S. federal income tax rate   $ 44,538 $ 41,404 $ 52,253
State income taxes, net of federal income tax benefit   5,384 5,213 3,564
Tax reform impact $ (48,200)   (5,575) (48,160)
Section 199 qualifying production activities benefit       (5,422)
Net share-based payments (windfalls) shortfalls   (828) 1,639 (1,001)
Other   (1,549) (2,680) (2,061)
Income tax expense (benefit)   $ 47,545 $ 40,001 $ (827)