Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2017

Intangible Assets, Net (Excluding Goodwill) [Abstract]

Schedule of Indefinite-Lived Intangible Assets

Other intangible assets are comprised of the following:

	December 31, 2017							December 31, 2016
(in millions)	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Definite-lived intangible assets:
Customer relationships	$	16.7	$	(10.6	)	$	6.1	$	27.1	$	(22.4	)	$	4.7
Favorable contracts	11.0		(6.8		)	4.2		11.0		(6.2		)	4.8
Other	7.1		(1.5		)	5.6		3.7		(1.0		)	2.7
Table games license	2.7		(0.6		)	2.1		2.7		(0.4		)	2.3
Slots gaming license	2.3		(1.1		)	1.2		2.3		(1.1		)	1.2
	$	39.8	$	(20.6	)	$	19.2	$	46.8	$	(31.1	)	$	15.7
Indefinite-lived intangible assets:
Trademarks						21.2							25.7
Slots gaming rights						128.9							128.9
Illinois Horseracing Equity Trust						—							3.3
Other						0.1							0.4
Total						$	169.4						$	174.0

Schedule of Finite-lived Intangible Assets

Other intangible assets are comprised of the following:

	December 31, 2017							December 31, 2016
(in millions)	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Definite-lived intangible assets:
Customer relationships	$	16.7	$	(10.6	)	$	6.1	$	27.1	$	(22.4	)	$	4.7
Favorable contracts	11.0		(6.8		)	4.2		11.0		(6.2		)	4.8
Other	7.1		(1.5		)	5.6		3.7		(1.0		)	2.7
Table games license	2.7		(0.6		)	2.1		2.7		(0.4		)	2.3
Slots gaming license	2.3		(1.1		)	1.2		2.3		(1.1		)	1.2
	$	39.8	$	(20.6	)	$	19.2	$	46.8	$	(31.1	)	$	15.7
Indefinite-lived intangible assets:
Trademarks						21.2							25.7
Slots gaming rights						128.9							128.9
Illinois Horseracing Equity Trust						—							3.3
Other						0.1							0.4
Total						$	169.4						$	174.0

Schedule of Future Estimated Amortization Expense

Future estimated aggregate amortization expense on existing definite-lived intangible assets for each of the next five fiscal years is as follows (in millions):

Years Ended December 31,	Estimated Amortization Expense
2018	$	4.8
2019	2.1
2020	1.9
2021	1.8
2022	1.8