GOODWILL

Goodwill is comprised of the following:



(in millions)	Racing		Online Wagering		Casino		Total
Balances as of December 31, 2016	$	51.7	$	132.1	$	117.7	$	301.5
Additions	—		16.1		—		16.1
Balances as of December 31, 2017	51.7		148.2		117.7		317.6
Additions	—		—		20.4		20.4
Balances as of December 31, 2018	$	51.7	$	148.2	$	138.1	$	338.0

In 2018, we established goodwill of $20.4 million related to the Ocean Downs/Saratoga Transaction. In 2017, we established goodwill of $16.1 million related to the BetAmerica acquisition.

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.