Equity Investments (Details) € in Millions, $ in Millions	6 Months Ended
Jun. 30, 2016 USD ($)	Jun. 30, 2016 EUR (€)	Jun. 30, 2015 USD ($)	Jun. 30, 2015 EUR (€)
Schedule of Equity Method Investments [Line Items]
Distributed earnings from equity investments	$ 16.3		$ 19.9
ITL
Schedule of Equity Method Investments [Line Items]
Distribution of capital received	3.1	€ 2.8	6.5	€ 5.8
RCN
Schedule of Equity Method Investments [Line Items]
Distributed earnings from equity investments	1.4		1.8
LNS
Schedule of Equity Method Investments [Line Items]
Distribution of capital received	19.4	17.6	16.8	15.0
Distributed earnings from equity investments	$ 14.9	€ 13.5	$ 14.5	€ 12.9

This item represents disclosure of the amount of dividends or other distributions received from unconsolidated subsidiaries, certain corporate joint ventures, and certain noncontrolled corporation; these investments are accounted for under the equity method of accounting. This element excludes distributions that constitute a return of investment, which are classified as investing activities.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 225
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04(10))
-URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(12))
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration