Goodwill is comprised of the following:



(in millions)	Racing		TwinSpires		Casino		Total
Balances as of December 31, 2017	$	51.7	$	148.2	$	117.7	$	317.6
Ocean Downs/Saratoga Transaction	—		—		20.2		20.2
Balances as of September 30, 2018	$	51.7	$	148.2	$	137.9	$	337.8

We performed our annual goodwill impairment analysis as of April 1, 2018 and no adjustment to the carrying value of goodwill was required. We assessed goodwill for impairment by performing step one fair value calculations on a quantitative basis for each reporting unit. We concluded that the fair values of our reporting units exceeded their carrying value and therefore step two of the assessment was not required.

Other intangible assets are comprised of the following:



	September 30, 2018							December 31, 2017
(in millions)	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Definite-lived intangible assets	$	42.3	$	(23.0	)	$	19.3	$	39.8	$	(20.6	)	$	19.2
Indefinite-lived intangible assets						245.5							150.2
Total						$	264.8						$	169.4

We performed our annual indefinite-lived intangible assets impairment analysis as of April 1, 2018, which included an assessment of qualitative and quantitative factors to determine whether it is more likely than not that the fair values of the indefinite-lived intangible assets are less than the carrying amount. We concluded that the fair values of our indefinite-lived intangible assets exceeded carrying value and therefore step two of the assessment was not required.