Fair Value Measurements - Summary of Recognized Assets and Liabilities (Detail) - Fair Value, Measurements, Recurring - Non-qualified deferred compensation plan - USD ($) $ in Thousands	Aug. 26, 2017	Feb. 25, 2017	Aug. 27, 2016
Level 1
Assets
Non-qualified deferred compensation plan	$ 4,262	$ 5,517	$ 5,503
Level 2
Assets
Non-qualified deferred compensation plan	0	0	0
Level 3
Assets
Non-qualified deferred compensation plan	$ 0	$ 0	$ 0