Summary of Recognized Assets and Liabilities (Detail) (USD $) In Thousands, unless otherwise specified	Nov. 30, 2013	Mar. 02, 2013	Dec. 01, 2012
Level 1 | Non-qualified deferred compensation plan
Assets
Total Assets	$ 5,693	$ 4,940	$ 4,691
Level 1 | Contingent consideration liability
Liabilities
Total Liabilities	0	0	0
Level 2 | Non-qualified deferred compensation plan
Assets
Total Assets	0	0	0
Level 2 | Contingent consideration liability
Liabilities
Total Liabilities	0	0	0
Level 3 | Non-qualified deferred compensation plan
Assets
Total Assets	0	0	0
Level 3 | Contingent consideration liability
Liabilities
Total Liabilities	$ 1,903	$ 1,453	$ 3,621