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v3.23.1

Convertible Senior Notes - Additional Information (Detail) $ / shares in Units, ¥ in Thousands, $ in Thousands |  | 1 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | ---
Jun. 26, 2018 $ / shares | Jul. 31, 2018 USD ($) shares | Dec. 31, 2022 CNY (¥) shares | Dec. 31, 2022 USD ($) shares | Dec. 31, 2021 CNY (¥) shares | Dec. 31, 2021 USD ($) shares | Dec. 31, 2020 CNY (¥) | Dec. 31, 2022 USD ($) $ / shares | Dec. 31, 2021 $ / shares | Jul. 31, 2018 CNY (¥) | Jul. 31, 2018 USD ($) $ / shares
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |
Gain loss on repurchase of debt instruments |  |  | ¥ 129,575 | $ 18,787 | ¥ 0 |  | ¥ 0 |  |  |  |
Convertible Senior Notes Due 2025 [Member] |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount |  |  |  |  |  |  |  |  |  | ¥ 4,985,000 | $ 725,000
Conversion rate per ADS | shares |  | 15.4776 | 19.1861 | 19.1861 | 16.9816 | 16.9816 |  |  |  |  |
Conversion price per ADS | $ / shares | $ 45.34 |  |  |  |  |  |  | $ 52.12 | $ 58.89 |  | $ 64.61
Debt conversion premium percentage | 42.50% |  |  |  |  |  |  |  |  |  |
Convertible senior notes maturity date |  | Jul. 01, 2025 |  |  |  |  |  |  |  |  |
Principal amount of each convertible note | $ |  | $ 1,000 |  | $ 1,000 |  | $ 1,000 |  |  |  |  |
Number of notes converted into company's ADSs |  |  | 0 | 0 | 0 | 0 |  |  |  |  |
Convertible senior notes interest rate |  |  | 1.25% |  |  |  |  | 1.25% |  |  |
Debt instrument, carrying value |  |  | ¥ 2,646,168 |  | ¥ 4,565,292 |  |  |  |  |  |
Unamortized debt issuance costs |  |  | ¥ 22,793 |  | ¥ 54,843 |  |  |  |  |  |
Debt instrument, effective interest rate |  |  | 1.61% |  | 1.61% |  |  | 1.61% |  |  |
Amortization and interest expenses |  |  | ¥ 83,530 |  | ¥ 73,776 |  |  |  |  |  |
Debt instrument repurchased principal amount |  |  | 2,331,509 |  |  |  |  | $ 338,037 |  |  |
Debt instrument repurchase price |  |  | 2,136,987 |  |  |  |  | $ 320,048 |  |  |
Gain loss on repurchase of debt instruments |  |  | ¥ 129,575 |  |  |  |  |  |  |  |

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