Goodwill and Other Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2023

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

Goodwill, by segment, is composed of the following:

(in millions)	Live and Historical Racing		TwinSpires		Gaming		All Other		Total
Balances as of December 31, 2022	$	280.3	$	152.2	$	290.3	$	1.0	$	723.8
Additions	95.9		81.2		—		—		177.1
Adjustments	—		—		—		(1.0)		(1.0)
Balances as of September 30, 2023	$	376.2	$	233.4	$	290.3	$	—	$	899.9

Schedule of Indefinite-Lived Intangible Assets

Other intangible assets are comprised of the following:

	September 30, 2023						December 31, 2022
(in millions)	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Definite-lived intangible assets	$	95.8	$	(25.6)	$	70.2	$	31.0	$	(21.4)	$	9.6
Indefinite-lived intangible assets					2,347.1						2,382.2
Total					$	2,417.3					$	2,391.8

Schedule of Finite-Lived Intangible Assets

Other intangible assets are comprised of the following:

	September 30, 2023						December 31, 2022
(in millions)	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Definite-lived intangible assets	$	95.8	$	(25.6)	$	70.2	$	31.0	$	(21.4)	$	9.6
Indefinite-lived intangible assets					2,347.1						2,382.2
Total					$	2,417.3					$	2,391.8