Customer Allowances and Discounts - Additional Information (Detail) - USD ($)
$ in Millions
May 27, 2016
Feb. 29, 2016
May 29, 2015
Allowance for Rebates [Member]      
Valuation and Qualifying Accounts Disclosure [Line Items]      
Trade allowances and discounts settled in cash $ 10.3 $ 16.0 $ 14.6