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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
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