Inventories - Additional Information (Detail)	Nov. 30, 2020	Feb. 29, 2020
Inventory Disclosure [Abstract]
Percentage of Inventories valued at LIFO	11.00%	9.40%

The percentage of LIFO (last in first out) inventory to total inventory as of the balance sheet date if other than 100 percent.

No definition available.

Name:	us-gaap_PercentageOfLIFOInventory
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant