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Discontinued Operations - Income (Loss) From Discontinued Operations (Details) - Discontinued Operations, Disposed of by Sale - Big Fish Games - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Net revenue | $ 0.0 | $ 0.0 | $ 0.0 | $ 0.0
Selling, general and administrative expense | 0.0 | 0.0 | 0.0 | 1.5
Legal settlement | 0.0 | 0.0 | 0.0 | 124.0
Loss from discontinued operations before benefit for income taxes | 0.0 | 0.0 | 0.0 | (125.5)
Income tax benefit | 0.0 | 0.0 | 0.0 | 29.4
Loss from discontinued operations, net of tax | $ 0.0 | $ 0.0 | $ 0.0 | $ (96.1)

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