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Retirement Plans - Schedule of Benefit Payments Expected to be Paid (Detail)
$ in Millions
Jan. 02, 2016
USD ($)
Compensation and Retirement Disclosure [Abstract]  
FY 2016 $ 1.8
FY 2017 1.9
FY 2018 2.0
FY 2019 1.9
FY 2020 2.0
through FY 2021 $ 11.0