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Share-based Compensation - Additional Information (Details) ¥ / shares in Units, $ / shares in Units, ¥ in Thousands, $ in Millions | 12 Months Ended |  |  |  |
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Dec. 31, 2022 CNY (¥) ¥ / shares shares | Dec. 31, 2022 CNY (¥) $ / shares shares | Dec. 31, 2021 CNY (¥) ¥ / shares shares | Dec. 31, 2020 CNY (¥) ¥ / shares shares | Dec. 31, 2022 USD ($) shares | Sep. 17, 2021 shares | Mar. 18, 2020 shares | Mar. 17, 2020 shares
Share-based Compensation |  |  |  |  |  |  |  |
Ordinary shares, shares authorized | 1,500,000,000 | 1,500,000,000 |  |  | 1,500,000,000 |  |  |
Cash settled equity instrument granted under share-based payment arrangements | ¥ | ¥ 0 |  | ¥ 0 | ¥ 0 |  |  |  |
Compensation cost for share-based payment arrangements | ¥ | ¥ 0 |  | ¥ 0 | ¥ 0 |  |  |  |
Weighted average grant date fair value of options granted | (per share) | ¥ 0.28 | $ 0.04 | ¥ 1.44 | ¥ 1.96 |  |  |  |
Vesting of restricted share units (in shares) | 5,637,860 |  | 1,812,960 | 190,160 |  |  |  |
common Class A |  |  |  |  |  |  |  |
Share-based Compensation |  |  |  |  |  |  |  |
Ordinary shares, shares authorized | 1,268,785,000 | 1,268,785,000 | 1,268,785,000 |  | 1,268,785,000 |  |  |
Restricted shares |  |  |  |  |  |  |  |
Share-based Compensation |  |  |  |  |  |  |  |
Restricted shares units, granted |  |  |  | 2,607,000 |  |  |  |
Vesting of restricted share units (in shares) | 3,625,000 |  | 6,232,000 | 9,857,000 |  |  |  |
Restricted share units |  |  |  |  |  |  |  |
Share-based Compensation |  |  |  |  |  |  |  |
Restricted shares units, granted | 2,192,900 |  | 13,080,200 | 9,611,020 |  |  |  |
Vesting of restricted share units (in shares) | 3,649,000 |  | 3,018,000 |  |  |  |  |
2019 Incentive Plan and the Amended and Restated 2019 Share Incentive Plan |  |  |  |  |  |  |  |
Share-based Compensation |  |  |  |  |  |  |  |
Unrecognized compensation expenses, unvested awards | ¥ 62,500 | $ 62,500 | ¥ 75,300 |  | $ 9.1 |  |  |
Unrecognized compensation expenses, weighted average period for recognition | 2 years 11 months 4 days |  | 2 years 6 months 29 days |  |  |  |  |
2019 Incentive Plan | common Class A |  |  |  |  |  |  |  |
Share-based Compensation |  |  |  |  |  |  |  |
Ordinary shares, shares authorized |  |  |  |  |  | 100,000,000 | 100,000,000 | 40,000,000
2019 Incentive Plan | common Class A | Restated |  |  |  |  |  |  |  |
Share-based Compensation |  |  |  |  |  |  |  |
Ordinary shares, shares authorized |  |  |  |  |  | 170,000,000 |  |
2019 Incentive Plan | common Class A | Minimum |  |  |  |  |  |  |  |
Share-based Compensation |  |  |  |  |  |  |  |
Award vesting period | 0 years |  |  |  |  |  |  |
2019 Incentive Plan | common Class A | Maximum |  |  |  |  |  |  |  |
Share-based Compensation |  |  |  |  |  |  |  |
Award vesting period | 4 years |  |  |  |  |  |  |
2018 Incentive Plan |  |  |  |  |  |  |  |
Share-based Compensation |  |  |  |  |  |  |  |
Award vesting period | 4 years |  |  |  |  |  |  |

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- Definition Aggregate cash paid by the entity during the period to settle equity instruments granted under equity-based payment arrangements. + 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 (k) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Amount of cost not yet recognized for nonvested award under share-based payment arrangement. + 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 The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target 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)(2)(iii)(01) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period. + 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)(2)(iii)(02) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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