Condensed Consolidated Statements Of Comprehensive Income - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Net revenue:
Net revenue	$ 477.4	$ 379.4	$ 742.8	$ 568.7
Operating expense:
Selling, general and administrative expense	30.1	23.1	55.0	41.5
Transaction expense, net	0.6	2.1	4.1	3.5
Total operating expense	321.0	242.8	558.4	412.4
Operating income	156.4	136.6	184.4	156.3
Other income (expense):
Interest expense, net	(19.4)	(9.7)	(33.1)	(19.3)
Equity in income of unconsolidated affiliates	9.5	8.8	13.6	15.3
Miscellaneous, net	0.4	0.3	0.4	0.4
Total other expense	(9.5)	(0.6)	(19.1)	(3.6)
Income from continuing operations before provision for income taxes	146.9	136.0	165.3	152.7
Income tax provision	(38.6)	(32.8)	(45.1)	(35.4)
Income from continuing operations, net of tax	108.3	103.2	120.2	117.3
(Loss) income from discontinued operations, net of tax	(1.2)	(0.1)	(1.5)	167.8
Net income	$ 107.1	$ 103.1	$ 118.7	$ 285.1
Net income (loss) per common share data - basic:
Continuing operations (in dollars per share)	$ 2.69	$ 2.54	$ 2.99	$ 2.80
Discontinued operations (in dollars per share)	(0.03)	0	(0.04)	3.99
Net income per common share data - basic (in dollars per share)	2.66	2.54	2.95	6.79
Net income (loss) per common share data - diluted:
Continuing operations (in dollars per share)	2.66	2.52	2.96	2.78
Discontinued operations (in dollars per share)	(0.03)	0	(0.04)	3.97
Net income per common share data - diluted (in dollars per share)	$ 2.63	$ 2.52	$ 2.92	$ 6.75
Weighted average shares outstanding:
Basic (in shares)	40.1	40.7	40.3	42.0
Diluted (in shares)	40.7	40.9	40.7	42.2
Other comprehensive income (loss):
Foreign currency translation, net of tax	$ 0.0	$ 0.0	$ 0.0	$ 0.6
Change in pension benefits, net of tax	0.0	(0.2)	0.0	(0.4)
Other comprehensive income (loss)	0.0	(0.2)	0.0	0.2
Comprehensive income	107.1	102.9	118.7	285.3
Churchill Downs
Net revenue:
Net revenue	182.2	154.9	203.2	156.9
Operating expense:
Operating expense	73.6	58.0	97.0	67.9
Online Wagering
Net revenue:
Net revenue	95.6	93.7	158.7	156.9
Operating expense:
Operating expense	62.0	59.5	107.1	103.5
Gaming
Net revenue:
Net revenue	177.6	108.1	346.4	219.6
Operating expense:
Operating expense	133.2	78.1	258.2	157.7
All Other
Net revenue:
Net revenue	22.0	22.7	34.5	35.3
Operating expense:
Operating expense	$ 21.5	$ 22.0	$ 37.0	$ 38.3