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Share-based Compensation (Details) - CNY (¥)
¥ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Share-based compensation cost      
Share-based Compensation Expense ¥ 3,041,492 ¥ 2,663,489 ¥ 2,404,089
Cost of revenues      
Share-based compensation cost      
Share-based Compensation Expense 833,389 794,855 758,810
Selling and marketing expenses      
Share-based compensation cost      
Share-based Compensation Expense 118,611 102,300 84,920
General and administrative expenses      
Share-based compensation cost      
Share-based Compensation Expense 1,105,547 929,013 797,120
Research and development expenses      
Share-based compensation cost      
Share-based Compensation Expense ¥ 983,945 ¥ 837,321 ¥ 763,239