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Summary of Significant Accounting Policies (Noncontrolling Interest Recognition) (Details) - Changyou [Member]	Apr. 17, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of ordinary shares held	100.00%
Voting power held by the Company	100.00%

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- Definition

Percentage of ordinary shares held.

+ References

No definition available.

+ Details

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- Definition

Voting power held by shareholders.

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No definition available.

+ Details

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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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- Details

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