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v3.22.1

Organization - Additional Information (Detail) ¥ in Thousands, $ in Thousands |  |  | 1 Months Ended | 12 Months Ended |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Mar. 15, 2021 CNY (¥) shares | Dec. 31, 2013 USD ($) shares | Nov. 30, 2014 USD ($) shares | Dec. 31, 2021 CNY (¥) Customer shares | Dec. 31, 2021 USD ($) Customer | Dec. 31, 2020 CNY (¥) Customer shares | Dec. 31, 2019 CNY (¥) shares | Dec. 31, 2017 | Dec. 31, 2014 shares | Dec. 31, 2021 USD ($) shares | Dec. 31, 2018 shares | Feb. 22, 2017 | Jun. 30, 2016 | Jun. 27, 2008 | Jun. 23, 2008
Summary of Investment Holdings [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from issuance of shares |  |  |  |  | ¥ 3,565,843 | $ 559,559 |  |  |  |  |  |  |  |  |  |
Ordinary shares, shares issued |  |  |  |  | 505,183,788 |  | 479,219,628 |  |  |  | 505,183,788 |  |  |  |  |
Ordinary shares outstanding | [1] |  |  |  | 505,183,788 |  | 479,219,628 | 475,706,748 |  |  | 505,183,788 | 472,225,380 |  |  |  |
No of ordinary shares per Ads after division | Customer |  |  |  |  | 4 | 4 |  |  |  |  |  |  |  |  |  |
No of ordinary shares per Ads before division | Customer |  |  |  |  | 1 | 1 | 1 |  |  |  |  |  |  |  |  |
Global Offering Including Over Allotment Option [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary of Investment Holdings [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Newly issued shares through offering |  | 24,738,400 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Global Offering Over Allotment Option [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary of Investment Holdings [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Newly issued shares through offering |  | 4,544,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Global Offering [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary of Investment Holdings [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net proceeds from Global offering | ¥ |  | ¥ 4,294,850 |  |  |  |  |  |  |  |  |  |  |  |  |  |
American Depositary Shares [Member] | IPO [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary of Investment Holdings [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Newly issued shares through offering |  |  | 8,993,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from issuance of shares | $ |  |  | $ 142,590 |  |  |  |  |  |  |  |  |  |  |  |  |
American Depositary Shares [Member] | Follow-on offering [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary of Investment Holdings [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Newly issued shares through offering |  |  |  | 2,424,801 |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from issuance of shares | $ |  |  |  | $ 97,344 |  |  |  |  |  |  |  |  |  |  |  |
Class A Ordinary Shares [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary of Investment Holdings [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares converted into Class A ordinary shares from Class B ordinary shares during the period |  |  |  |  |  |  |  |  |  | 6,964,612 |  |  |  |  |  |
VIE Structure Concentration Risk [Member] | Net Revenues [Member] | Customer [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary of Investment Holdings [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Concentration percentage |  |  |  |  | 13.10% | 13.10% | 8.10% | 8.30% |  |  |  |  |  |  |  |
VIE Structure Concentration Risk [Member] | Assets, Total [Member] | Customer [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary of Investment Holdings [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Concentration percentage |  |  |  |  | 8.70% | 8.70% | 10.60% |  |  |  |  |  |  |  |  |
VIE Structure Concentration Risk [Member] | Liabilities, Total [Member] | Customer [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary of Investment Holdings [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Concentration percentage |  |  |  |  | 9.50% | 9.50% | 13.80% |  |  |  |  |  |  |  |  |
Consolidated VIEs [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary of Investment Holdings [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amounts due from PRC subsidiaries |  |  |  |  | ¥ 183,335 |  | ¥ 129,223 |  |  |  | $ 28,769 |  |  |  |  |
Inter-company balances between VIE and WFOE and Autohome HK |  |  |  |  | 524,983 |  | 103,393 |  |  |  | $ 82,381 |  |  |  |  |
Error corrections and prior period adjustments | ¥ |  |  |  |  |  |  | 423,800 |  |  |  |  |  |  |  |  |
Consolidated VIEs [Member] | Inter Company Revenues [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary of Investment Holdings [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Service fee |  |  |  |  | ¥ 131,524 | $ 20,639 | ¥ 173,299 | ¥ 113,430 |  |  |  |  |  |  |  |
Exclusive technical consulting and service agreements [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary of Investment Holdings [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Extension option in agreement term |  |  |  |  |  |  |  |  | 10 years |  |  |  |  |  |  |
Exclusive technical consulting and service agreements [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary of Investment Holdings [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Term of agreement |  |  |  |  |  |  |  |  | 30 years |  |  |  |  |  |  |
Telstra Holdings Pty Ltd. [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary of Investment Holdings [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of the company owned by parent |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 55.00% | 100.00%
Selling Shareholders of Cheerbright, China Topside and Norstar [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary of Investment Holdings [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of the Company owned by selling shareholders |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 45.00% |
Ping An Insurance (Group) Company of China Ltd. [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary of Investment Holdings [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of the company owned by parent |  |  |  |  | 44.50% |  |  |  |  |  | 44.50% |  | 6.50% | 47.40% |  |
[1] | Par value per share and the number of shares have been retrospectively adjusted for the Share Subdivision and the ADS Ratio Change that were effective on February 5, 2021 as detailed in Note 2(a) and Note 22.

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