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Share-based Payment - Summary of Employee Share Options (Parenthetical) (Detail) - CNY (¥)
¥ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Disclosure of terms and conditions of share-based payment arrangement [line items]      
Allocated share based compensation expense ¥ 133,395 ¥ 165,248 ¥ (55,443)
Performance Share Units      
Disclosure of terms and conditions of share-based payment arrangement [line items]      
Allocated share based compensation expense ¥ 129,000 ¥ 70