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Sohu.com Limited Shareholders' Equity (Changyou 2019 Share Incentive Plan) (Details) - USD ($) $ / shares in Units, $ in Thousands |  | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Apr. 17, 2020 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | Feb. 02, 2021 | Aug. 26, 2019 | Aug. 03, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Share-based compensation expense |  | $ 8,578 | $ 14,480 | $ 2,350 |  |  |
Changyou 2019 Share Incentive Plan [Member] | Share Options [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Number of options granted in period |  | 954,500 |  |  |  |  |
Changyou [Member] | Share Options [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Number of options granted in period |  | 5,443,000 |  |  |  |  |
Changyou [Member] | Share Options [Member] | Class A ordinary shares [Member] | Changyou Merger [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Exercise prices of option granted | $ 0.01 |  |  |  |  |  |
Changyou [Member] | Changyou 2019 Share Incentive Plan [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Toal share based compensation expense |  | $ 3,900 | 4,800 |  |  |  |
Total value of share options vested |  | $ 2,600 | $ 2,600 |  |  |  |
Changyou [Member] | Changyou 2019 Share Incentive Plan [Member] | Class A ordinary shares [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Share based compensation by share based payment arrangement options excercised exercise price per share | 5.39 |  |  |  |  |  |
Changyou [Member] | Changyou 2019 Share Incentive Plan [Member] | Share Options [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Installments of share options granted |  | four equal installments |  |  |  |  |
Award vesting period |  | 4 years |  |  |  |  |
Share-based compensation expense |  | $ 2,600 |  |  |  |  |
Changyou [Member] | Changyou 2019 Share Incentive Plan [Member] | Share Options [Member] | Class A ordinary shares [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Shares reserved for issuance |  |  |  |  |  |  | 3,000,000
Changyou [Member] | Changyou 2019 Share Incentive Plan [Member] | Share Options [Member] | Class A ordinary shares [Member] | Changyou Merger [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Share-based Compensation Arrangements by Share-based Payment Award Options Not Exercisable in Period Conditionally Repurchased Price | 5.39 |  |  |  |  |  |
Accrued fixed price, initial | 5.39 |  |  |  |  |  |
Accrued fixed price, final | $ 5.39 |  |  |  |  |  |
Changyou [Member] | Changyou 2019 Share Incentive Plan [Member] | Share Options [Member] | Class A ordinary shares [Member] | Certain members of management and certain other employees [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Number of shares under contractually granted share options |  |  |  |  | 600,000 | 1,909,000 |
Exercise prices of option granted |  |  |  |  | $ 0.01 | $ 0.01 |

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