Property and Equipment (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 946,273,000	$ 856,035,000
Accumulated depreciation	(360,775,000)	(313,153,000)
Property, Plant and Equipment, Net	585,498,000	542,882,000
Depreciation	49,600,000	44,400,000	43,300,000
Land
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	118,165,000	115,887,000
Grandstands and buildings
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	435,125,000	413,896,000
Equipment
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	208,966,000	180,452,000
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	47,718,000	45,810,000
Tracks and other improvements
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	121,085,000	92,197,000
Construction in progress
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	15,214,000	7,793,000
Trackside
Property, Plant and Equipment [Line Items]
Depreciation	$ 1,500,000	$ 900,000