Retirement Plans and Post Retirement Benefits Asset Allocation and Fair Value of Plan Assets (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2016		Dec. 31, 2015		Dec. 31, 2014
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets		$ 239.9		$ 237.4		$ 268.0
Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets		151.2		153.7
Fair Value, Inputs, Level 2
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets		76.5		70.4
Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets		12.2		13.3
Multi-strategy Funds
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	[1]	75.1		84.2
Multi-strategy Funds | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	[1]	62.9		70.9
Multi-strategy Funds | Fair Value, Inputs, Level 2
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	[1]	0.0		0.0
Multi-strategy Funds | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets		12.2	[1]	13.3	[1]	$ 26.1
Cash and Cash Equivalents
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets		2.2		1.9
Cash and Cash Equivalents | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets		0.0		0.0
Cash and Cash Equivalents | Fair Value, Inputs, Level 2
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets		2.2		1.9
Cash and Cash Equivalents | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets		0.0		0.0
Domestic stock funds
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	[2]	51.3		50.7
Domestic stock funds | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	[2]	38.0		39.0
Domestic stock funds | Fair Value, Inputs, Level 2
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	[2]	13.3		11.7
Domestic stock funds | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	[2]	0.0		0.0
International stock funds
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	[2]	38.5		34.0
International stock funds | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	[2]	13.5		11.7
International stock funds | Fair Value, Inputs, Level 2
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	[2]	25.0		22.3
International stock funds | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	[2]	0.0		0.0
Domestic bond funds
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets		36.8	[3]	32.1	[2]
Domestic bond funds | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	[2]	36.8		32.1
Domestic bond funds | Fair Value, Inputs, Level 2
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	[2]	0.0		0.0
Domestic bond funds | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	[2]	0.0		0.0
International bond funds
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	[3]	36.0		34.5
International bond funds | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	[2]	0.0		0.0
International bond funds | Fair Value, Inputs, Level 2
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	[2]	36.0		34.5
International bond funds | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	[2]	$ 0.0		$ 0.0
United States Pension Plan of US Entity [Member]
Target Allocations [Abstract]
Target Plan Asset Allocation 2016		100.00%
Defined Benefit Plan, Actual Plan Asset Allocation		100.00%		100.00%
United States Pension Plan of US Entity [Member] | Equity Securities
Target Allocations [Abstract]
Target Plan Asset Allocation 2016		40.00%
Defined Benefit Plan, Actual Plan Asset Allocation		40.00%		38.00%
United States Pension Plan of US Entity [Member] | Debt Securities
Target Allocations [Abstract]
Target Plan Asset Allocation 2016		20.00%
Defined Benefit Plan, Actual Plan Asset Allocation		20.00%		17.00%
United States Pension Plan of US Entity [Member] | Multi-strategy Funds
Target Allocations [Abstract]
Target Plan Asset Allocation 2016		40.00%
Defined Benefit Plan, Actual Plan Asset Allocation		40.00%		45.00%
United States Pension Plan of US Entity [Member] | Cash and Cash Equivalents
Target Allocations [Abstract]
Target Plan Asset Allocation 2016		0.00%
Defined Benefit Plan, Actual Plan Asset Allocation		0.00%		0.00%
Non-US Benefit Plans [Member] [Member]
Target Allocations [Abstract]
Target Plan Asset Allocation 2016		100.00%
Defined Benefit Plan, Actual Plan Asset Allocation		100.00%		100.00%
Non-US Benefit Plans [Member] [Member] | Equity Securities
Target Allocations [Abstract]
Target Plan Asset Allocation 2016		27.00%
Defined Benefit Plan, Actual Plan Asset Allocation		29.00%		28.00%
Non-US Benefit Plans [Member] [Member] | Debt Securities
Target Allocations [Abstract]
Target Plan Asset Allocation 2016		71.00%
Defined Benefit Plan, Actual Plan Asset Allocation		70.00%		71.00%
Non-US Benefit Plans [Member] [Member] | Cash and Cash Equivalents
Target Allocations [Abstract]
Target Plan Asset Allocation 2016		2.00%
Defined Benefit Plan, Actual Plan Asset Allocation		1.00%		1.00%

[1] The multi-strategy funds invest in various hedge funds that employ a fund of funds strategy.

[2] Equity investments include investments in funds that are primarily invested in large capitalization U.S. and international equity securities and a mutual fund.

[3] Fixed income investments include investments in funds that are primarily invested in a diversified portfolio of investment grade U.S. and international debt securities.