Fair Value Measurements - Summary of Assets and Liabilities Measured at Fair Value as of Measurement Date (Detail) - Fair Value, Measurements, Recurring [Member] - USD ($) $ in Thousands	Aug. 26, 2016	Feb. 29, 2016	Aug. 28, 2015
Assets measured on a recurring basis:
Deferred compensation plan assets	$ 11,914	$ 11,158	$ 11,514
Investment in equity securities	59,338	33,230	56,482
Assets measured on a recurring basis	71,252	44,388	67,996
Liabilities measured on a recurring basis:
Deferred compensation plan liabilities	12,935	12,064	12,425
Fair Value, Inputs, Level 1 [Member]
Assets measured on a recurring basis:
Deferred compensation plan assets	10,683	9,936	10,236
Investment in equity securities	59,338	33,230	56,482
Assets measured on a recurring basis	70,021	43,166	66,718
Liabilities measured on a recurring basis:
Deferred compensation plan liabilities	10,683	9,936	10,236
Fair Value, Inputs, Level 2 [Member]
Assets measured on a recurring basis:
Deferred compensation plan assets	1,231	1,222	1,278
Assets measured on a recurring basis	1,231	1,222	1,278
Liabilities measured on a recurring basis:
Deferred compensation plan liabilities	$ 2,252	$ 2,128	$ 2,189