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Share-based Payment Arrangements - Summary of Information About USISH Option Plans (Detail) ¥ / shares in Units, shares in Thousands | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Nov. 30, 2019 shares | Dec. 31, 2022 shares $ / shares | Dec. 31, 2022 CNY (¥) shares ¥ / shares | Dec. 31, 2021 shares ¥ / shares $ / shares | Dec. 31, 2021 CNY (¥) shares ¥ / shares | Dec. 31, 2020 CNY (¥) shares ¥ / shares | Dec. 31, 2022 shares ¥ / shares
Disclosure of terms and conditions of share-based payment arrangement [Line Items] |  |  |  |  |  |  |
Number of options, granted | 17,167 |  |  |  |  |  |
USISH option plans [member] |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [Line Items] |  |  |  |  |  |  |
Number of options, beginning balance |  |  | 29,486 |  | 31,266 | 35,077 |
Number of options, granted |  |  | 0 |  | 0 | 1,140 |
Number of options, expired |  |  | (2,312) |  | 0 | 0 |
Number of options, forfeited |  |  | (942) |  | (952) | (636) |
Number of options, exercised |  |  | (5,986) |  | (828) | (4,315) |
Number of options, Ending balance |  |  | 20,246 |  | 29,486 | 31,266 |
Number of options, exercisable, end of year |  | 15,518 |  | 19,249 | 19,249 | 13,416 | 15,518
Weighted average exercise price, Beginning balance | ¥ / shares |  |  | ¥ 14.2 |  | ¥ 14.6 | ¥ 14.5 |
Weighted average exercise price options granted | ¥ / shares |  |  | 0 |  | 0 | 21.7 |
Weighted average exercise price, Options expired | ¥ / shares |  |  | 13.9 |  | 0 | 0 |
Weighted average exercise price, Options forfeited | ¥ / shares |  |  | 13 |  | 14.5 | 14 |
Weighted average exercise price options exercised | ¥ / shares |  |  | 12.8 |  | 13.8 | 15.5 |
Weighted average exercise price, Ending balance | ¥ / shares |  |  | ¥ 14.5 |  | 14.2 | 14.6 |
Weighted average exercise price, Options exercisable, end of year | ¥ / shares |  |  |  | ¥ 14.8 | ¥ 14.8 | ¥ 15.5 | ¥ 15
Fair value of options granted | ¥ |  |  | ¥ 0 |  | ¥ 0 |  |
USISH option plans [member] | Bottom of range [member] |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [Line Items] |  |  |  |  |  |  |
Fair value of options granted | ¥ |  |  |  |  |  | ¥ 7.03 |
USISH option plans [member] | Top of range [member] |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [Line Items] |  |  |  |  |  |  |
Fair value of options granted | ¥ |  |  |  |  |  | ¥ 8.93 |
AMPI Option Plans [Member] |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [Line Items] |  |  |  |  |  |  |
Number of options, beginning balance |  |  | 0 |  |  |  |
Number of options, granted |  |  | 3,100 |  |  |  |
Number of options, Ending balance |  |  | 3,100 |  | 0 |  |
Number of options, exercisable, end of year |  | 0 |  |  |  |  | 0
Weighted average exercise price, Beginning balance | $ / shares |  | $ 0 |  |  |  |  |
Weighted average exercise price options granted | $ / shares |  | 30 |  |  |  |  |
Weighted average exercise price, Ending balance | $ / shares |  | 30 |  | ¥ 0 |  |  |
Weighted average exercise price, Options exercisable, end of year | $ / shares |  | 0 |  |  |  |  |
AMPI Option Plans [Member] | Bottom of range [member] |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [Line Items] |  |  |  |  |  |  |
Weighted-average fair value of options granted | $ / shares |  | 18 |  |  |  |  |
AMPI Option Plans [Member] | Top of range [member] |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [Line Items] |  |  |  |  |  |  |
Weighted-average fair value of options granted | $ / shares |  | $ 18.8 |  |  |  |  |

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