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v3.8.0.1

Employee Benefit Plans (Plans' Funded Status) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Changes in projected benefit obligation: |  |  |
Amendments |  | $ 3.2 |
Changes in plan assets: |  |  |
Fair value of plan assets at beginning of year | $ 292.5 |  |
Fair value of plan assets at end of year | 318.6 | 292.5 |
Pension Benefits [Member] |  |  |
Pension and Postretirement Benefit Plans recognized in financial statements |  |  |
Accumulated benefit obligation | 401.5 | 374.1 |
Changes in projected benefit obligation: |  |  |
Benefit obligation at beginning of year | 381.6 | 415.4 |
Service cost | 5.0 | 4.4 | $ 4.8
Interest cost | 12.6 | 15.3 | 17.2
Plan participants' contributions | 0.0 | 0.0 |
Amendments | 0.0 | 0.1 |
Actuarial (gain) loss | 22.1 | 22.8 |
Effect of exchange rates | 4.3 | (3.8) |
Settlements and curtailments | (1.3) | (50.6) |
Benefits paid | (18.8) | (22.0) |
Benefit obligation at end of year | 405.5 | 381.6 | 415.4
Changes in plan assets: |  |  |
Fair value of plan assets at beginning of year | 292.5 | 293.0 |
Actual gain return on plan assets | 39.8 | 21.0 |
Employer contribution | 3.5 | 53.9 |
Plan participants' contributions | 0.0 | 0.0 |
Effect of exchange rates | 2.9 | (2.8) |
Plan settlements | (1.3) | (50.6) |
Benefits paid | (18.8) | (22.0) |
Fair value of plan assets at end of year | 318.6 | 292.5 | 293.0
Funded status / net amount recognized | (86.9) | (89.1) |
Net amount recognized consists of: |  |  |
Noncurrent assets | (1.6) | 0.0 |
Current liability | (4.0) | (1.6) |
Non-current liability | (84.5) | (87.5) |
Net amount recognized | (86.9) | (89.1) |
Other Benefits [Member] |  |  |
Changes in projected benefit obligation: |  |  |
Benefit obligation at beginning of year | 3.3 | 4.9 |
Service cost | 0.0 | 0.0 | 0.0
Interest cost | 0.1 | 0.1 | 0.2
Plan participants' contributions | 0.3 | 0.3 |
Amendments | 0.0 | 0.0 |
Actuarial (gain) loss | (0.1) | (0.7) |
Effect of exchange rates | 0.0 | 0.0 |
Settlements and curtailments | 0.0 | 0.0 |
Benefits paid | (0.5) | (1.3) |
Benefit obligation at end of year | 3.1 | 3.3 | 4.9
Changes in plan assets: |  |  |
Fair value of plan assets at beginning of year | 0.0 | 0.0 |
Actual gain return on plan assets | 0.0 | 0.0 |
Employer contribution | 0.3 | 1.0 |
Plan participants' contributions | 0.2 | 0.3 |
Effect of exchange rates | 0.0 | 0.0 |
Plan settlements | 0.0 | 0.0 |
Benefits paid | (0.5) | (1.3) |
Fair value of plan assets at end of year | 0.0 | 0.0 | $ 0.0
Funded status / net amount recognized | (3.1) | (3.3) |
Net amount recognized consists of: |  |  |
Noncurrent assets | 0.0 | 0.0 |
Current liability | (0.5) | (0.5) |
Non-current liability | (2.6) | (2.8) |
Net amount recognized | $ (3.1) | $ (3.3) |

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- Definition Amount of actuarial present value of benefits attributed to employee service rendered, excluding assumptions about future compensation level. + 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 (e) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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- Definition Amount of increase (decrease) in plan assets of defined benefit plan from actual return (loss) determined by change in fair value of plan assets adjusted for contributions, benefit payments, and other expenses. + 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 (b)(1) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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- Definition Amount of 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 (a) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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- Definition Amount of contributions received by defined benefit plan from participant which increase benefit obligation. + 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 (a)(3) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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- Definition Amount of foreign currency translation gain (loss) which (increases) decreases benefit obligation of 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 (a)(5) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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