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Contract Liabilities - Schedule of Amount of Revenue Recognised in Respective Reporting Periods that was Included in Contract Liabilities at Beginning of Reporting Period (Details) - CNY (¥)
¥ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Disclosure Of Contract Liabilities [Abstract]      
Amount of revenue recognised in the respective reporting periods that was included in the contract liabilities at the beginning of the reporting period ¥ 20,821 ¥ 13,874 ¥ 12,395