Basis Of Presentation (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014 D	Sep. 30, 2013 D	Sep. 30, 2014 D	Sep. 30, 2013 D	Dec. 31, 2013
Promotional Allowance [Line Items]
Live Racing Days	65	104	271	284
Promotional Allowances			$ 25.0	$ 25.1
Estimated Cost Of Providing Promotional Allowances	2.3	2.4	6.9	7.2
Customer Loyalty Program Liability, Current	2.0		2.0		2.1
Racing Operations Segment [Member]
Promotional Allowance [Line Items]
Promotional Allowances	0.1	0.2	0.5	0.7
Online Operations
Promotional Allowance [Line Items]
Promotional Allowances	3.6	3.4	9.8	9.5
Gaming Segment [Member]
Promotional Allowance [Line Items]
Promotional Allowances	$ 5.0	$ 5.1	$ 14.7	$ 14.9