Condensed Consolidated Statements Of Comprehensive Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Net revenues:
Racing	$ 159,435	$ 157,387	$ 190,014	$ 185,200
Gaming	81,958	66,887	168,513	138,976
Online	57,076	52,531	103,160	95,447
Other	5,182	6,789	9,274	11,847
Net revenues	303,651	283,594	470,961	431,470
Operating expenses:
Racing	85,483	90,160	128,703	131,280
Gaming	62,184	49,624	124,399	100,612
Online	36,811	33,218	70,388	63,580
Other	6,350	6,377	12,048	11,559
Selling, general and administrative expenses	18,666	22,096	40,131	39,654
Insurance recoveries, net of losses	0	0	(431)	(375)
Operating income	94,157	82,119	95,723	85,160
Other income (expense):
Interest income	5	89	9	99
Interest expense	(4,961)	(1,256)	(9,934)	(2,732)
Equity in gains (losses) of unconsolidated investments	2,506	(631)	4,796	(795)
Miscellaneous, net	393	1,023	368	1,030
Total other income (expense)	(2,057)	(775)	(4,761)	(2,398)
Earnings from continuing operations before provision for income taxes	92,100	81,344	90,962	82,762
Income tax provision	(34,767)	(31,035)	(34,329)	(31,364)
Earnings from continuing operations	57,333	50,309	56,633	51,398
Discontinued operations, net of income taxes:
Loss from operations	0	(11)	0	(42)
Net earnings and comprehensive income	$ 57,333	$ 50,298	$ 56,633	$ 51,356
Earnings Per Share, Basic [Abstract]
Net earnings (in dollars per share), Basic	$ 3.23	$ 2.85	$ 3.20	$ 2.91
Earnings Per Share, Diluted [Abstract]
Net earnings (in dollars per share), Diluted	$ 3.21	$ 2.81	$ 3.17	$ 2.87
Weighted average shares outstanding:
Basic (in shares)	17,531	17,268	17,475	17,239
Diluted (in shares)	17,880	17,921	17,884	17,882