Earnings Per Share - Additional Information (Detail) - USD ($)	6 Months Ended
Aug. 31, 2022	Aug. 31, 2021
Earnings Per Share [Abstract]
Undistributed earnings	$ 0
Options outstanding	0	0

The earnings that is allocated to common stock and participating securities to the extent that each security may share in earnings as if all of the earnings for the period had been distributed.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 66
-URI https://asc.fasb.org/extlink&oid=126958026&loc=d3e2814-109256

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 60B
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=126958026&loc=SL5780133-109256

Name:	us-gaap_UndistributedEarnings
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration