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Accumulated Other Comprehensive Loss (Tables) | 6 Months Ended
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Jun. 30, 2017
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] |
Schedule of changes in Accumulated other comprehensive income (loss) by component | The changes in accumulated other comprehensive loss by component for the three months and six months ended June 30, were as follows:
(in millions) |  | Accrued post-retirement benefit liability (1) |  | Foreign currency translation |  | Other, net |  | Total
Balance at April 1, 2017 |  | $ | (26.0 | ) |  | $ | (85.3 | ) |  | $ | 0.8 |  |  | $ | (110.5 | )
Other comprehensive income (loss) before reclassifications |  | — |  |  | 19.8 |  |  | (0.3 | ) |  | 19.5 |
Amounts reclassified from accumulated other comprehensive loss |  | 0.7 |  |  | — |  |  | (0.3 | ) |  | 0.4 |
Income tax expense |  | (0.3 | ) |  | — |  |  | — |  |  | (0.3 | )
Other comprehensive income (loss) |  | 0.4 |  |  | 19.8 |  |  | (0.6 | ) |  | 19.6 |
Balance at June 30, 2017 |  | $ | (25.6 | ) |  | $ | (65.5 | ) |  | $ | 0.2 |  |  | $ | (90.9 | )
Balance at April 1, 2016 |  | $ | (27.0 | ) |  | $ | (49.8 | ) |  | $ | 0.1 |  |  | $ | (76.7 | )
Other comprehensive loss before reclassifications |  | — |  |  | (15.0 | ) |  | — |  |  | (15.0 | )
Amounts reclassified from accumulated other comprehensive loss |  | 0.6 |  |  | — |  |  | (0.1 | ) |  | 0.5 |
Net income tax expense |  | (0.2 | ) |  | — |  |  | — |  |  | (0.2 | )
Other comprehensive income (loss) |  | 0.4 |  |  | (15.0 | ) |  | (0.1 | ) |  | (14.7 | )
Balance at June 30, 2016 |  | $ | (26.6 | ) |  | $ | (64.8 | ) |  | $ | — |  |  | $ | (91.4 | )
Balance at January 1, 2017 |  | $ | (26.4 | ) |  | $ | (96.7 | ) |  | $ | 0.9 |  |  | $ | (122.2 | )
Other comprehensive income (loss) before reclassifications |  | — |  |  | 31.2 |  |  | (0.2 | ) |  | 31.0 |
Amounts reclassified from accumulated other comprehensive loss |  | 1.3 |  |  | — |  |  | (0.5 | ) |  | 0.8 |
Income tax expense |  | (0.5 | ) |  | — |  |  | — |  |  | (0.5 | )
Other comprehensive income (loss) |  | 0.8 |  |  | 31.2 |  |  | (0.7 | ) |  | 31.3 |
Balance at June 30, 2017 |  | $ | (25.6 | ) |  | $ | (65.5 | ) |  | $ | 0.2 |  |  | $ | (90.9 | )
Balance at January 1, 2016 |  | $ | (27.4 | ) |  | $ | (60.0 | ) |  | $ | 0.3 |  |  | $ | (87.1 | )
Other comprehensive loss before reclassifications |  | — |  |  | (4.8 | ) |  | — |  |  | (4.8 | )
Amounts reclassified from accumulated other comprehensive loss |  | 1.2 |  |  | — |  |  | (0.4 | ) |  | 0.8 |
Income tax (expense) benefit |  | (0.4 | ) |  | — |  |  | 0.1 |  |  | (0.3 | )
Other comprehensive income (loss) |  | 0.8 |  |  | (4.8 | ) |  | (0.3 | ) |  | (4.3 | )
Balance at June 30, 2016 |  | $ | (26.6 | ) |  | $ | (64.8 | ) |  | $ | — |  |  | $ | (91.4 | )
(1) Current period amounts for the accrued post-retirement benefit liability are related to the amortization of unrecognized actuarial gains and losses, which is included in net periodic benefit cost for pension and other post-retirement welfare plans. See Note 13 for further information.

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=84228862&loc=SL7669686-108580 + Details
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