Operating Leases (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2015	$ 11,604,000
2016	10,719,000
2017	9,601,000
2018	4,591,000
2019	2,515,000
Thereafter	3,590,000
Operating Leases, Future Minimum Payments Due	42,620,000
Operating Leases, Rent Expense, Contingent Rentals	4,300,000	3,700,000	3,600,000
Operating Leases, Rent Expense, Net	$ 20,200,000	$ 20,200,000	$ 18,400,000
Arlington Park
Operating Leased Assets [Line Items]
Number Of Operating Lease Agreements	9
Number Of Off Track Betting Palors	10
Number Of Off Track Betting Sites Operated By Third Party	8
Fair Grounds
Operating Leased Assets [Line Items]
Number Of Operating Lease Agreements	10
Number Of Off Track Betting Palors	12