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Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2017

Commitments and Contingencies Disclosure [Abstract]

Schedule of Rental Expense and Sublease Income Table Text Block

Our rental expense and sublease income were as follows:

		Year Ended December 31,
		2017				2016				2015
Rental Expense, Net
Rental expense		$	17.0			$	16.8			$	18.6
Sublease rental income			(4.2	)			(3.5	)			(2.3	)
Net rental expense		$	12.8			$	13.3			$	16.3

Schedule of Future Minimum Rental Payments for Operating Leases

Our future minimum noncancellable lease payments, net, on existing operating leases at December 31, 2017, which have an initial term of more than one year, are as follows:

Years Ending December 31,		Amount
2018		$	10.5
2019			10.6
2020			8.9
2021			6.3
2022			5.4
Thereafter			4.3
Total		$	46.0

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Schedule of Rental Expense And Sublease Income Table [Text Block]

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- Definition

Tabular disclosure of future minimum payments required in the aggregate and for each of the five succeeding fiscal years for operating leases having initial or remaining noncancelable lease terms in excess of one year and the total minimum rentals to be received in the future under noncancelable subleases as of the balance sheet date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 20
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=77902758&loc=d3e41502-112717

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