Fair Value Measurements - Assets and Liabilities Measured at Fair Value as of Measurement Date (Detail) (Fair Value, Measurements, Recurring [Member], USD $) In Thousands, unless otherwise specified	Nov. 29, 2013	Feb. 28, 2013	Nov. 23, 2012
Deferred Compensation Plan Assets [Member]
Assets measured on a recurring basis:
Assets measured on a recurring basis	$ 12,129	$ 10,636	$ 10,177
Deferred Compensation Plan Liabilities [Member]
Liabilities measured on a recurring basis:
Liabilities measured on a recurring basis	13,295	10,636	10,177
Level 1 [Member] | Deferred Compensation Plan Assets [Member]
Assets measured on a recurring basis:
Assets measured on a recurring basis	8,814	9,175	8,645
Level 1 [Member] | Deferred Compensation Plan Liabilities [Member]
Liabilities measured on a recurring basis:
Liabilities measured on a recurring basis	8,814	9,175	8,645
Level 2 [Member] | Deferred Compensation Plan Assets [Member]
Assets measured on a recurring basis:
Assets measured on a recurring basis	3,315	1,461	1,532
Level 2 [Member] | Deferred Compensation Plan Liabilities [Member]
Liabilities measured on a recurring basis:
Liabilities measured on a recurring basis	4,481	1,461	1,532
Level 3 [Member] | Deferred Compensation Plan Assets [Member]
Assets measured on a recurring basis:
Assets measured on a recurring basis
Level 3 [Member] | Deferred Compensation Plan Liabilities [Member]
Liabilities measured on a recurring basis:
Liabilities measured on a recurring basis