Fair Value Measurements - Summary of Recognized Assets and Liabilities (Detail) - USD ($) $ in Thousands	May. 30, 2015	Feb. 28, 2015	May. 31, 2014
Level 1 | Contingent consideration liabilities
Liabilities
Total Liabilities	$ 0	$ 0	$ 0
Level 1 | Non-qualified deferred compensation plan
Assets
Total Assets	6,425	6,424	6,117
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	441	650	2,253
Level 3 | Non-qualified deferred compensation plan
Assets
Total Assets	$ 0	$ 0	$ 0