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Discontinued Operations - Additional Information (Details) - USD ($) |  | 12 Months Ended |
--- | --- | --- | ---
Jan. 09, 2018 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016 | Nov. 29, 2017
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |
Proceeds from sale of Big Fish Games | $ 970,700,000 | $ 970,700,000 | $ 0 | $ 0 |
Carrying Value of Disposal Group | 751,200,000 |  |  |  |
Working capital adjustments | 5,200,000 |  |  |  |
Transaction expense, net | 14,100,000 |  |  |  |
Gain on sale of Big Fish Games | 219,500,000 |  |  |  |
Income tax provision on gain from sale of business | 51,200,000 |  |  |  |
After tax gain | 168,300,000 |  |  |  |
Big Fish Games |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |
Proceeds from sale of Big Fish Games | $ 990,000,000 |  |  |  |
Big Fish Games | Discontinued Operations, Held-for-sale |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |
Transaction expense, net |  |  | 4,700,000 | 5,800,000 |
Gain on sale of Big Fish Games |  |  | 0 | 0 |
Previously recognized compensation expense |  |  |  |  | $ 0
Compensation expense recognized due to acceleration of vesting |  |  | 3,400,000 |  |
Stock-based compensation expense |  | $ 3,400,000 | 11,100,000 | 5,600,000 |
Increase in fair values of Big Fish Games deferred payment and earnout liability |  |  | $ 1,100,000 | $ 5,700,000 |

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