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Share-Based Compensation - Additional Information (Details) ¥ / shares in Units, ¥ in Thousands | 12 Months Ended
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Dec. 31, 2022 CNY (¥) $ / shares shares | Dec. 31, 2022 CNY (¥) ¥ / shares shares | Dec. 31, 2021 ¥ / shares shares | Dec. 31, 2020 shares | Dec. 31, 2017 shares
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |  |
Weighted average grant date fair value of options granted | (per share) | $ 26.25 | ¥ 181.04 | ¥ 306.56 |  |
Options granted | shares |  | 558,935 |  |  |
Options exercised | shares |  | 6,009 | 37,606 | 134,639 |
Aggregate intrinsic value of options | ¥ |  | ¥ 1,223 |  |  |
Unrecognized compensation expense related to unvested share options | ¥ | $ 112,243 | ¥ 112,243 |  |  |
Unrecognized compensation expense, period for recognition |  | 3 years 11 months 4 days |  |  |
Restricted Stock |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |  |
Unrecognized compensation expense, period for recognition |  | 4 years 7 months 17 days |  |  |
Total fair value of non-vested restricted shares | ¥ |  | ¥ 9,672 |  |  |
Unrecognized compensation expense related to non-vested restricted shares | ¥ | $ 28,161 | ¥ 28,161 |  |  |
Stock Incentive Plan 2017 |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |  |
Maximum number of shares that may be issued | shares |  |  |  |  | 2,800,000
Stock Incentive Plan 2017 | Stock Options |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |  |
Stock incentive plans, term |  |  |  |  | 10 years
Vesting period for remaining the 75% of options granted |  |  |  |  | 36 months
Stock Incentive Plan 2017 | Stock Options | First anniversary of the grant date |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |  |
Vesting percentage |  |  |  |  | 25.00%
Stock Incentive Plan 2017 | Stock Options | Vesting ratably over the following 36 months |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |  |
Vesting percentage |  |  |  |  | 75.00%
Stock Incentive Plan 2022 |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |  |
Maximum number of shares that may be issued | shares | 3,000,000 | 3,000,000 |  |  |
Stock Incentive Plan 2022 | Stock Options |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |  |
Stock incentive plans, term |  | 10 years |  |  |
Vesting period for remaining the 75% of options granted |  | 36 months |  |  |
Stock Incentive Plan 2022 | Stock Options | First anniversary of the grant date |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |  |
Vesting percentage |  | 25.00% |  |  |
Stock Incentive Plan 2022 | Stock Options | Vesting ratably over the following 36 months |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |  |
Vesting percentage |  | 75.00% |  |  |

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- Definition Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + 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 (i) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Amount of cost to be recognized for nonvested award under share-based payment arrangement. Excludes share and unit options. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Amount of cost to be recognized for option under share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash. + 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 (d)(2) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares. + 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 (d)(2) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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