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Employee Benefit Plans (Tables) | 6 Months Ended
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Jun. 30, 2015
Employee benefit plans |
Schedule of components of period benefit costs | The components of periodic benefit costs for three and six months ended June 30, 2015 and June 30, 2014 are as follows:
|  | Three Months Ended June 30, 2015 |  | Six Months Ended June 30, 2015
|  | U.S. |  | Non-U.S. |  | Postretirement |  | U.S. |  | Non-U.S. |  | Postretirement
|  | Pension |  | Pension |  | Health and |  | Pension |  | Pension |  | Health and
(in millions) |  | Plans |  | Plans |  | Other Plans |  | Plans |  | Plans |  | Other Plans
Service cost - benefits earned during the period |  | $ | — |  |  | $ | 0.7 |  |  | $ | 0.1 |  |  | $ | — |  |  | $ | 1.4 |  |  | $ | 0.2 |
Interest cost of projected benefit obligations |  | 2.4 |  |  | 2.2 |  |  | 0.5 |  |  | 4.7 |  |  | 4.4 |  |  | 1.0 |
Expected return on plan assets |  | (2.3 | ) |  | (1.9 | ) |  | — |  |  | (4.5 | ) |  | (3.8 | ) |  | — |
Amortization of actuarial net loss |  | 1.3 |  |  | 0.6 |  |  | — |  |  | 2.6 |  |  | 1.2 |  |  | — |
Net periodic benefit costs |  | $ | 1.4 |  |  | $ | 1.6 |  |  | $ | 0.6 |  |  | $ | 2.8 |  |  | $ | 3.2 |  |  | $ | 1.2 |
|  | Three Months Ended June 30, 2014 |  | Six Months Ended June 30, 2014
|  | U.S. |  | Non-U.S. |  | Postretirement |  | U.S. |  | Non-U.S. |  | Postretirement
|  | Pension |  | Pension |  | Health and |  | Pension |  | Pension |  | Health and
(in millions) |  | Plans |  | Plans |  | Other Plans |  | Plans |  | Plans |  | Other Plans
Service cost - benefits earned during the period |  | $ | — |  |  | $ | 0.6 |  |  | $ | 0.1 |  |  | $ | — |  |  | $ | 1.2 |  |  | $ | 0.2 |
Interest cost of projected benefit obligations |  | 2.5 |  |  | 2.8 |  |  | 0.5 |  |  | 5.1 |  |  | 5.5 |  |  | 1.0 |
Expected return on plan assets |  | (2.3 | ) |  | (2.4 | ) |  | — |  |  | (4.7 | ) |  | (4.7 | ) |  | (0.1 | )
Amortization of actuarial net loss |  | 0.7 |  |  | 0.4 |  |  | — |  |  | 1.4 |  |  | 0.8 |  |  | (0.1 | )
Net periodic benefit costs |  | $ | 0.9 |  |  | $ | 1.4 |  |  | $ | 0.6 |  |  | $ | 1.8 |  |  | $ | 2.8 |  |  | $ | 1.0 |

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. + 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) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 + Details
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