Discontinued Operations - Income (Loss) From Discontinued Operations (Details) - Big Fish Games - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net revenue	$ 0.0	$ 0.0
Selling, general and administrative expense	1.2	0.4
Loss from discontinued operations before provision for income taxes	(1.2)	(0.4)
Income tax benefit	0.3	0.1
Loss from discontinued operations, net of tax	$ (0.9)	$ (0.3)

Amount before tax of income (loss) from operations classified as a discontinued operation. Excludes gain (loss) on disposal and provision for gain (loss) until its disposal.

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