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Share-Based Compensation - Summary of Aggregate Options Activity and Information Regarding Options Outstanding (Details) ¥ / shares in Units, ¥ in Thousands, shares in Thousands |  | 12 Months Ended
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Jan. 22, 2019 $ / shares | Feb. 28, 2023 ¥ / shares shares | Feb. 28, 2022 ¥ / shares shares | Feb. 28, 2021 CNY (¥) ¥ / shares shares
Share-Based Payment Arrangement [Abstract] |  |  |  |
Number of Options, Options outstanding, Beginning of period | shares |  | 3,898 | 4,090 |
Number of Options, Forfeited | shares |  | (93) | (122) |
Number of Options, Expired | shares |  | (592) | (70) |
Number of Options, Options outstanding, End of period | shares |  | 3,213 | 3,898 | 4,090
Number of Options, Options vested or expected to vest | shares |  | 3,213 |  |
Number of Options, Options exercisable | shares |  | 2,790 |  |
Weighted Average Exercise Price, Options outstanding, Beginning of period | ¥ / shares |  | ¥ 14.49 | ¥ 14.96 |
Weighted Average Exercise Price, Granted | $ / shares | $ 4.6 |  |  |
Weighted Average Exercise Price, Forfeited | ¥ / shares |  | 25.46 | 27.12 |
Weighted Average Exercise Price, Expired | ¥ / shares |  | 13.60 | 19.91 |
Weighted Average Exercise Price, Options outstanding, End of period | ¥ / shares |  | 14.34 | ¥ 14.49 | ¥ 14.96
Weighted Average Exercise Price, Options vested or expected to vest | ¥ / shares |  | 14.34 |  |
Weighted Average Exercise Price, Options exercisable | ¥ / shares |  | ¥ 13.92 |  |
Weighted Average Remaining Contract Life (Years), Options outstanding |  | 4 years 10 months 28 days | 5 years 10 months 28 days | 6 years 11 months 8 days
Weighted Average Remaining Contract Life (Years), Forfeited |  | 7 years 7 months 28 days | 8 years 5 months 8 days |
Weighted Average Remaining Contract Life (Years), Expired |  | 4 years 6 months 25 days | 5 years 5 months 4 days |
Weighted Average Remaining Contract Life (Years), Options vested or expected to vest |  | 4 years 11 months 26 days |  |
Weighted Average Remaining Contract Life (Years), Options exercisable |  | 4 years 6 months 21 days |  |
Aggregate Intrinsic Value, Options outstanding | ¥ |  |  |  | ¥ 29,428

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- Definition Share based compensation arrangement by share based payment award options forfeited weighted average remaining contractual term2. + References No definition available. + Details
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- Definition The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(04) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(03) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Number of options outstanding, including both vested and non-vested options. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(ii) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(ii) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Number of fully vested and expected to vest options outstanding that can be converted into shares under option plan. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(1) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Weighted-average exercise price, at which grantee can acquire shares reserved for issuance, for fully vested and expected to vest options outstanding. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(1) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Weighted average price at which grantees could have acquired the underlying shares with respect to stock options of the plan that expired. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(04) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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