Summary of Recognized Assets and Liabilities (Detail) (USD $) In Thousands, unless otherwise specified	Nov. 29, 2014	Mar. 01, 2014	Nov. 30, 2013
Level 1 | Contingent consideration liabilities
Liabilities
Total Liabilities	$ 0	$ 0	$ 0
Level 1 | Non-qualified deferred compensation plan
Assets
Total Assets	6,273	5,869	5,693
Level 2 | Contingent consideration liabilities
Liabilities
Total Liabilities	0	0	0
Level 2 | Non-qualified deferred compensation plan
Assets
Total Assets	0	0	0
Level 3 | Contingent consideration liabilities
Liabilities
Total Liabilities	350	1,903	1,903
Level 3 | Non-qualified deferred compensation plan
Assets
Total Assets	$ 0	$ 0	$ 0