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Share-based Compensation - Additional Information (Detail) ¥ in Thousands, $ in Thousands |  |  | 12 Months Ended |
--- | --- | --- | --- | ---
Sep. 28, 2019 shares | Dec. 23, 2016 shares | Dec. 31, 2022 CNY (¥) shares | Dec. 31, 2022 USD ($) shares | Dec. 31, 2021 CNY (¥) shares | Dec. 31, 2020 CNY (¥) shares | Dec. 31, 2022 USD ($)
Restricted Stock Units (RSUs) [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Granted |  |  | 876,380 | 876,380 | 4,790,000 | 2,363,000 |
Total fair value of RSUs vested |  |  | ¥ 96,898 | $ 14,049 | ¥ 121,131 | ¥ 54,036 |
Unrecognized share-based compensation expenses |  |  | ¥ 158,870 |  |  |  | $ 23,034
Unrecognized share-based compensation expenses, weighted average vesting period |  |  | 1 year 10 months 24 days | 1 year 10 months 24 days |  |  |
Restricted Stock Units (RSUs) [Member] | One Year Period [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Share based compensation arrangement by share based payment award equity other than options vesting period |  |  | 1 year | 1 year |  |  |
Share based compensation by share based award equity instruments other than options subject to service condition |  |  | 5,000 | 5,000 |  |  |
Restricted Stock Units (RSUs) [Member] | Two Year Period [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Share based compensation arrangement by share based payment award equity other than options vesting period |  |  | 2 years | 2 years |  |  |
Share based compensation by share based award equity instruments other than options subject to service condition |  |  | 451,380 | 451,380 |  |  |
Restricted Stock Units (RSUs) [Member] | Four Year Period [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Share based compensation arrangement by share based payment award equity other than options vesting period |  |  | 4 years | 4 years |  |  |
Share based compensation by share based award equity instruments other than options subject to service condition |  |  | 7,573,000 | 7,573,000 |  |  |
Share Incentive Plan [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Aggregate number of ordinary shares that may be issued pursuant to all share-based awards |  | 8,867,053 |  |  |  |  |
Percentage of total outstanding shares on a fully diluted basis allowed for share-based awards |  | 15.00% |  |  |  |  |
Share Incentive Plan 2019 [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Aggregate number of ordinary shares that may be issued pursuant to all share-based awards | 7,747,019 |  |  |  |  |  |
Percentage of total outstanding shares on a fully diluted basis allowed for share-based awards | 15.00% |  |  |  |  |  |
Share Incentive Plan 2019 [Member] | Restricted Stock Units (RSUs) [Member] | Share-based Payment Arrangement, Tranche One [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Unrecognized compensation cost related to stock options | ¥ |  |  | ¥ 0 |  | ¥ 0 | ¥ 0 |
Share Incentive Plan 2019 [Member] | Restricted Stock Units (RSUs) [Member] | Share-based Payment Arrangement, Tranche Two [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Granted |  |  | 876,380 | 876,380 | 4,790,000 | 1,613,000 |
Unrecognized compensation cost related to stock options | ¥ |  |  | ¥ 0 |  | ¥ 0 | ¥ 821 |
Share Incentive Plan 2015 [Member] | Restricted Stock Units (RSUs) [Member] | Share-based Payment Arrangement, Tranche One [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Granted |  |  | 0 | 0 | 0 | 750,000 |

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- Definition Share based compensation by share based award equity instruments equity instruments other than options subject to service condition. + References No definition available. + 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 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 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 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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