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Share-based Compensation (Details 5) ¥ in Thousands | 12 Months Ended
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Dec. 31, 2020 CNY (¥) installment | Dec. 31, 2019 CNY (¥) | Dec. 31, 2018 CNY (¥)
Share based Compensation |  |  |
Compensation expenses | ¥ | ¥ 2,663,489 | ¥ 2,404,089 | ¥ 2,471,731
Unrecognized share based compensation expenses relating to share options | ¥ | 170,000 |  |
Stock Options |  |  |
Share based Compensation |  |  |
Compensation expenses | ¥ | ¥ 117,700 | ¥ 56,200 | ¥ 32,000
Certain subsidiaries | Stock Options | Vesting option I |  |  |
Share based Compensation |  |  |
Percentage of vesting of equity awards on the predefined Vesting Commencement Date | 100.00% |  |
Certain subsidiaries | Stock Options | Vesting option II |  |  |
Share based Compensation |  |  |
Number of equal installments of vesting of equity awards from the predefined Vesting Commencement Date | 2 |  |
Certain subsidiaries | Stock Options | Vesting option III |  |  |
Share based Compensation |  |  |
Number of equal installments of vesting of equity awards from the predefined Vesting Commencement Date | 3 |  |
Certain subsidiaries | Stock Options | Vesting option IV |  |  |
Share based Compensation |  |  |
Number of equal installments of vesting of equity awards from the predefined Vesting Commencement Date | 4 |  |
Certain subsidiaries | Stock Options | Vesting option V |  |  |
Share based Compensation |  |  |
Number of equal installments of vesting of equity awards from the predefined Vesting Commencement Date | 5 |  |
Certain subsidiaries | Equal to or more than | Stock Options |  |  |
Share based Compensation |  |  |
Expiration period | 5 years |  |
Certain subsidiaries | Less than | Stock Options |  |  |
Share based Compensation |  |  |
Expiration period | 10 years |  |

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