Note 5. Goodwill and Other Intangible Assets

The changes in the carrying amount of goodwill attributable to each reportable segment for the three month period ended March 31, 2019 is presented in the table below.

	Industrials			Energy			Medical			Total
Balance as of December 31, 2018	$	632.7		$	453.6		$	203.2		$	1,289.5
Foreign currency translation and other ⁽¹⁾		(2.2	)		(3.8	)		(0.2	)		(6.2	)
Balance as of March 31, 2019	$	630.5		$	449.8		$	203.0		$	1,283.3

⁽¹⁾

During the three month period ended March 31, 2019, the Company recorded an increase in goodwill of $0.5 million as a result of measurement period adjustments in the Industrial segment.

As of March 31, 2019, goodwill included a total of $563.9 million of accumulated impairment losses within the Energy segment since the date of the transaction in which the Company was acquired by an affiliate of Kohlberg Kravis Roberts & Co. L.P. on July 30, 2013 (the “KKR Transaction”). There were no goodwill impairment charges recorded during the three month periods ended March 31, 2019 and 2018.

Other intangible assets as of March 31, 2019 and December 31, 2018 consisted of the following.

	March 31, 2019					December 31, 2018
	Gross Carrying Amount		Accumulated Amortization			Gross Carrying Amount		Accumulated Amortization
Amortized intangible assets
Customer lists and relationships	$	1,241.1	$	(593.2	)	$	1,245.5	$	(567.8	)
Technology		21.2		(5.0	)		21.7		(4.8	)
Trademarks		44.6		(13.7	)		44.9		(13.0	)
Backlog		68.6		(68.6	)		68.8		(68.6	)
Other		62.0		(34.2	)		62.3		(31.9	)
Unamortized intangible assets
Trademarks		612.5		-			611.3		-
Total other intangible assets	$	2,050.0	$	(714.7	)	$	2,054.5	$	(686.1	)

Amortization of intangible assets was $31.4 million for the three month period ended March 31, 2019 and $30.9 million for the three month period ended March 31, 2018. Amortization of intangible assets is anticipated to be approximately $122.9 million annually in 2020 through 2024 based upon exchange rates as of March 31, 2019.