Property and Equipment, Net - Additional Information (Details) ¥ in Thousands, $ in Thousands	12 Months Ended
Feb. 28, 2022 CNY (¥)	Feb. 28, 2022 USD ($)	Feb. 28, 2021 CNY (¥)	Feb. 29, 2020 CNY (¥)
Property, Plant and Equipment [Abstract]
Depreciation expense	¥ 8,458	$ 1,341	¥ 13,754	¥ 15,424
Impairment loss for property and equipment	¥ 7,871	$ 1,248

The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585

Name:	us-gaap_Depreciation
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration