XML 105 R84.htm IDEA: XBRL DOCUMENT v3.8.0.1
Associate Retirement Plans - Estimated Benefit Payments Expected to be Paid (Detail)
$ in Thousands
Dec. 30, 2017
USD ($)
Pension Benefits [Member]  
Defined Benefit Plan Disclosure [Line Items]  
2018 $ 8,668
2019 8,274
2020 7,702
2021 7,843
2022 7,035
2022 to 2026 26,850
Post-retirement medical benefits [Member]  
Defined Benefit Plan Disclosure [Line Items]  
2018 417
2019 463
2020 503
2021 540
2022 575
2022 to 2026 $ 3,232