Restricted Net Assets - Additional Information (Details) ¥ in Thousands, $ in Thousands	Feb. 28, 2022 CNY (¥)	Feb. 28, 2022 USD ($)	Feb. 28, 2021 CNY (¥)
Restricted Net Assets [Abstract]
Restricted net assets	¥ 116,359	$ 18,445	¥ 101,402

Amount of restricted net assets of consolidated and unconsolidated subsidiaries as of the end of the most recently completed fiscal year.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(e)(3)(ii))
-URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

Name:	us-gaap_AmountOfRestrictedNetAssetsForConsolidatedAndUnconsolidatedSubsidiaries
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant