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Sohu.com Limited Shareholders' Equity (Summary of Sohu.com Limited's Outstanding Shares) (Details) - shares shares in Thousands | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Balance, beginning of year | 39,306 |  |
Balance, end of year | 38,221 | 39,306 |
Sohu.com Limited [Member] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Balance, beginning of year | 39,306 | 39,269 | 39,229
Issuances: | 44 | 37 | 40
Repurchases: | (1,129) | 0 | 0
Balance, end of year | 38,221 | 39,306 | 39,269

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