Goodwill (Tables)

12 Months Ended

Dec. 31, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

Goodwill, by segment, is comprised of the following:

(in millions)	Churchill Downs		Online Wagering		Gaming		All Other		Total
Balances as of December 31, 2017	$	49.7	$	148.2	$	118.7	$	1.0	$	317.6
Additions	—		—		20.4		—		20.4
Balances as of December 31, 2018	49.7		148.2		139.1		1.0		338.0
Additions	—		—		26.1		3.0		29.1
Balances as of December 31, 2019	$	49.7	$	148.2	$	165.2	$	4.0	$	367.1