Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2016

Goodwill And Intangible Assets Disclosure [Abstract]

Schedule of Changes in the Carrying Amount of Goodwill by Segment

The changes in the carrying amount of goodwill by segment for the years ended December 31, 2016 and 2015 were as follows:

	U.S.		International			Total
Net book value as of January 1, 2015	$	429.2	$	19.6		$	448.8
Foreign exchange and other adjustments		—		(2.0	)		(2.0	)
Net book value as of December 31, 2015		429.2		17.6			446.8
Foreign exchange and other adjustments		—		(0.4	)		(0.4	)
Net book value as of December 31, 2016	$	429.2	$	17.2		$	446.4

Components of Other Intangible Assets

The components of other intangible assets at December 31, 2016 and 2015 were as follows:

	December 31, 2016							December 31, 2015
	Gross							Gross
	Carrying		Accumulated			Net Book		Carrying		Accumulated			NetBook
	Amount		Amortization			Value		Amount		Amortization			Value
Customer relationships	$	138.8	$	(85.3	)	$	53.5	$	140.2	$	(71.8	)	$	68.4
Trade names		6.3		(5.5	)		0.8		6.3		(5.5	)		0.8
Trademarks, licenses and agreements		3.2		(3.2	)		—		6.2		(6.1	)		0.1
Total other intangible assets	$	148.3	$	(94.0	)	$	54.3	$	152.7	$	(83.4	)	$	69.3

Schedule of Estimated Annual Amortization Expense Related to Other Intangible Assets

The following table outlines the estimated annual amortization expense related to other intangible assets as of December 31, 2016:

For the year ending December 31,	Amount
2017	$	14.2
2018		13.7
2019		13.7
2020		12.3
2021		0.1
2022 and thereafter		0.3
Total	$	54.3