Postretirement and Other Benefits (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Domestic Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Amortization of accumulated other comprehensive loss related to benefit plans	$ 3.4		$ 3.4
Domestic Plan \| Pension Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost	0.0	$ 0.0	0.0	$ 0.0
Interest cost	1.2	1.3	3.6	3.9
Expected return on plan assets	(1.6)	(1.7)	(4.8)	(5.1)
Amortizations and other	0.6	0.8	2.4	2.8
Net periodic benefit cost	0.2	0.4	1.2	1.6
Domestic Plan \| Other Postretirement Benefits Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost	0.0	0.0	0.0	0.0
Interest cost	0.0	0.0	0.0	0.0
Expected return on plan assets	0.0	0.0	0.0	0.0
Amortizations and other	0.1	0.1	0.2	0.2
Net periodic benefit cost	0.1	0.1	0.2	0.2
FRANCE
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Amortization of accumulated other comprehensive loss related to benefit plans	1.2		1.2
FRANCE \| Pension Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost	0.3	0.2	0.8	0.8
Interest cost	0.1	0.2	0.3	0.4
Expected return on plan assets	0.0	(0.1)	(0.1)	(0.2)
Amortizations and other	0.3	0.3	0.9	0.8
Net periodic benefit cost	$ 0.7	$ 0.6	$ 1.9	$ 1.8

Amount of gain (loss) recognized in net periodic benefit (cost) credit of defined benefit plan.

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Amount of cost (credit) included in accumulated other comprehensive (income) loss expected to be recognized in net periodic benefit cost (credit) for fiscal year following most recent annual statement of financial position.

+ References

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Amount of expected return (loss) recognized in net periodic benefit (cost) credit, calculated based on expected long-term rate of return and market-related value of plan assets of defined benefit plan.

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Amount of cost recognized for passage of time related to defined benefit plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (h)(2)
-URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
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Amount of net periodic benefit cost (credit) for defined benefit plan.

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Amount of cost for actuarial present value of benefits attributed to service rendered by employee for defined benefit plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (h)(1)
-URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920

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