Nature of Operations, Management's Plans and Summary of Significant Accounting Policies (Details) - USD ($) $ in Millions		3 Months Ended				6 Months Ended
	Jul. 14, 2020	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019	Dec. 31, 2018
Nature of Operations, Management's Plans and Summary of Significant Accounting Policies (Details) [Line Items]
Cash		$ 39.9		$ 33.7		$ 39.9	$ 33.7	$ 29.1	$ 16.0
Cash on hand		1.3				1.3
Net losses		(24.5)	$ (17.4)	(10.7)	$ (5.0)	(41.9)	(15.7)
Share-based compensation						2.0	4.4
Cash flows provided by operations						10.2	19.7
Deferred Income, Noncurrent		$ 1.3		$ 9.2		$ 1.3	$ 9.2
Revolving Credit Facility [Member] | Subsequent Event [Member]
Nature of Operations, Management's Plans and Summary of Significant Accounting Policies (Details) [Line Items]
Liquidity plan, description	Due to the closure of land-based revenues we saw a significant increase in our online revenues from slots and virtual sports and following the success of this area of the business and the successful re-opening of various revenue streams, the Company repaid £10 million ($12.4 million) of the revolving credit facility subsequent to the end of the period, on July 14, 2020.