Schedule of Estimated Fair Value (Detail) - USD ($) $ in Thousands	Sep. 06, 2020	Dec. 29, 2019
2015 Ten-Year Fixed Rate Notes [Member]
Debt Instrument [Line Items]
Principal Amount	$ 768,000	$ 774,000
Fair Value	821,760	804,960
2017 Five-Year Fixed Rate Notes [Member]
Debt Instrument [Line Items]
Principal Amount	583,500	588,000
Fair Value	585,251	588,588
2017 Ten-Year Fixed Rate Notes [Member]
Debt Instrument [Line Items]
Principal Amount	972,500	980,000
Fair Value	1,046,410	1,017,240
2017 Five-Year Floating Rate Notes [Member]
Debt Instrument [Line Items]
Principal Amount	291,750	294,000
Fair Value	291,458	294,000
2018 7.5-Year Fixed Rate Notes [Member]
Debt Instrument [Line Items]
Principal Amount	416,500	419,688
Fair Value	443,156	431,439
2018 9.25-Year Fixed Rate Notes [Member]
Debt Instrument [Line Items]
Principal Amount	392,000	395,000
Fair Value	425,320	414,355
2019 Ten-Year Fixed Rate Notes [Member]
Debt Instrument [Line Items]
Principal Amount	669,938	675,000
Fair Value	$ 706,114	$ 675,675