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Sohu.com Limited Shareholders' Equity (Changyou 2014 Share Incentive Plan, Narrative) (Details) - USD ($) |  | 12 Months Ended |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Apr. 17, 2020 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | Aug. 26, 2019 | Jul. 28, 2016 | Jun. 01, 2015 | Feb. 16, 2015 | Nov. 02, 2014 | Jun. 27, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Share-based compensation expense |  | $ 8,578,000 | $ 14,480,000 | $ 2,350,000 |  |  |  |  |  |
Changyou 2014 Share Incentive Plan [Member] | Share Options [Member] |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Number of Shares, Granted |  | 4,488,500 |  |  |  |  |  |  |  |
Total fair value of stock options granted |  | $ 4,100,000 |  |  |  |  |  |  |  |
Total fair values of share options vested |  | 4,100,000 | 4,200,000 | 1,000,000.0 |  |  |  |  |  |
Total intrinsic value of share options exercised |  | $ 0 | 100,000 | 6,600,000 |  |  |  |  |  |
Changyou [Member] | Share Options [Member] |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Number of Shares, Granted |  | 5,443,000 |  |  |  |  |  |  |  |
Changyou [Member] | Class A Ordinary Shares [Member] | Changyou Merger [Member] |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Consideration Per Share | $ 5.40 |  |  |  |  |  |  |  |  |
Changyou [Member] | Class A Ordinary Shares [Member] | Share Options [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 2014 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 |  |  |  |  |  |  |  |
Changyou [Member] | Changyou 2014 Share Incentive Plan [Member] | Class A Ordinary Shares [Member] | Share Options [Member] |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Installments of share options granted |  | four equal installments |  |  |  |  |  |  |  |
Changyou [Member] | Changyou 2014 Share Incentive Plan [Member] | Class A Ordinary Shares [Member] | Share Options [Member] | Changyou Merger [Member] |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Exercise prices of option granted | 0.01 |  |  |  |  |  |  |  |  |
Accrued fixed price, final | 5.39 |  |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award Per Share Fixed Price | 5.39 |  |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award Options Accrued Fixed Price Initial | 5.39 |  |  |  |  |  |  |  |  |
Consideration Per Share | 5.40 |  |  |  |  |  |  |  |  |
Changyou [Member] | Changyou 2014 Share Incentive Plan [Member] | Certain members of management and certain other employees [Member] | Share Options [Member] |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Share-based compensation expense |  | $ 3,900,000 | $ 7,700,000 | $ (1,900,000) |  |  |  |  |  |
Changyou [Member] | Changyou 2014 Share Incentive Plan [Member] | Certain members of management and certain other employees [Member] | Class A Ordinary Shares [Member] | Share Options [Member] |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Shares reserved for future issuance |  |  |  |  |  |  |  |  | 6,000,000 | 2,000,000
Plan expiration date |  | Jun. 30, 2024 |  |  |  |  |  |  |  |
Number of shares under contractually granted share options |  |  |  |  | 3,023,000 | 100,000 | 1,998,000 |  |  |
Exercise prices of option granted | 0.01 |  |  |  | $ 0.01 | $ 0.01 | $ 0.01 | $ 0.01 |  |
Installments of share options granted |  | four equal installments |  |  |  |  |  |  |  |
Award vesting period |  | 4 years |  |  |  |  |  |  |  |
Changyou [Member] | Changyou 2014 Share Incentive Plan [Member] | Certain members of management and certain other employees [Member] | Class A Ordinary Shares [Member] | Maximum [Member] | Share Options [Member] |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Maximum term of share rights granted under share incentive plan |  | 10 years |  |  |  |  |  |  |  |
Changyou [Member] | Changyou 2014 Share Incentive Plan [Member] | Certain members of management and certain other employees [Member] | Class A restricted share units [Member] | Share Options [Member] |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Number of shares under contractually granted share options |  |  |  |  |  |  |  |  | 2,416,000 |
Changyou [Member] | Changyou 2014 Share Incentive Plan [Member] | Certain members of management and certain other employees [Member] | Class A restricted share units [Member] | Maximum [Member] | Share Options [Member] |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Number of Class A restricted share units converted to options |  |  |  |  |  |  |  | 2,400,000 |  |
Changyou [Member] | Changyou 2014 and 2019 Share Incentive Plan [Member] |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Total fair value of stock options granted |  | $ 23,500,000 |  |  |  |  |  |  |  |
Changyou [Member] | Changyou 2014 and 2019 Share Incentive Plan [Member] | Class A Ordinary Shares [Member] | Share Options [Member] | Changyou Merger [Member] |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |
Accrued fixed price, final | 5.39 |  |  |  |  |  |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award Options Accrued Fixed Price Initial | 5.39 |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangements by Share-based Payment Award, Options, Not Exercisable in Period, Conditionally Repurchased, Exercise Price | $ 5.39 |  |  |  |  |  |  |  |  |

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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