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Share Based Compensation - Summary of Assumptions Used to Determine Fair value of Share Options (Details) - 2017 Restricted Share Scheme and 2017 Option Plan - CNY (¥)
¥ in Millions
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Disclosure Of Share Based Compensation [Line Items]      
Expected dividend yield 0.00% 0.00% 0.00%
Contractual life 10 years 10 years 10 years
Bottom of range      
Disclosure Of Share Based Compensation [Line Items]      
Risk free interest rate 2.15% 1.22% 0.71%
Expected volatility range 55.00% 43.50% 40.00%
Exercise multiples ¥ 2.2 ¥ 2.2 ¥ 2.2
Top of range [Member]      
Disclosure Of Share Based Compensation [Line Items]      
Risk free interest rate 2.92% 1.63% 0.91%
Expected volatility range 60.00% 50.00% 42.50%
Exercise multiples ¥ 2.8 ¥ 2.8 ¥ 2.8