Goodwill and Other Intangible Assets - Goodwill (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
Goodwill [Roll Forward]
Balance, December 31, 2019	$ 66.1
Goodwill impairment	(7.7)	$ 0.0
Deconsolidation of Blue Ribbon	(4.9)
Balance, March 31, 2020	53.5	$ 76.5
Restaurant Group
Goodwill [Roll Forward]
Balance, December 31, 2019	66.1
Goodwill impairment	(7.7)
Deconsolidation of Blue Ribbon	(4.9)
Balance, March 31, 2020	53.5
Corporate and Other
Goodwill [Roll Forward]
Balance, December 31, 2019	0.0
Goodwill impairment	0.0
Deconsolidation of Blue Ribbon	0.0
Balance, March 31, 2020	$ 0.0

Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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