Inventories - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Feb. 28, 2015	Feb. 29, 2016
Inventory Disclosure [Abstract]
Inventory held on location for retailers with scan-based trading arrangements, which is included in finished products	$ 63,000	$ 64,000
Effect of LIFO liquidation on income	$ 3,000