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Accumulated Other Comprehensive Loss (Tables) | 9 Months Ended
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Sep. 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 nine months ended September 30, were as follows:
(in millions) |  | Accrued post-retirement benefit liability (1) |  | Foreign currency translation |  | Other, net |  | Total
Balance at June 30, 2017 |  | $ | (25.6 | ) |  | $ | (65.5 | ) |  | $ | 0.2 |  |  | $ | (90.9 | )
Other comprehensive income (loss) before reclassifications |  | — |  |  | 13.4 |  |  | (0.2 | ) |  | 13.2 |
Amounts reclassified from accumulated other comprehensive loss |  | 0.6 |  |  | — |  |  | — |  |  | 0.6 |
Income tax expense |  | (0.2 | ) |  | — |  |  | — |  |  | (0.2 | )
Other comprehensive income (loss) |  | 0.4 |  |  | 13.4 |  |  | (0.2 | ) |  | 13.6 |
Balance at September 30, 2017 |  | $ | (25.2 | ) |  | $ | (52.1 | ) |  | $ | — |  |  | $ | (77.3 | )
Balance at June 30, 2016 |  | $ | (26.6 | ) |  | $ | (64.8 | ) |  | $ | — |  |  | $ | (91.4 | )
Other comprehensive loss before reclassifications |  | — |  |  | (0.5 | ) |  | (0.1 | ) |  | (0.6 | )
Amounts reclassified from accumulated other comprehensive loss |  | 0.6 |  |  | — |  |  | — |  |  | 0.6 |
Net income tax expense |  | (0.3 | ) |  | — |  |  | — |  |  | (0.3 | )
Other comprehensive income (loss) |  | 0.3 |  |  | (0.5 | ) |  | (0.1 | ) |  | (0.3 | )
Balance at September 30, 2016 |  | $ | (26.3 | ) |  | $ | (65.3 | ) |  | $ | (0.1 | ) |  | $ | (91.7 | )
Balance at January 1, 2017 |  | $ | (26.4 | ) |  | $ | (96.7 | ) |  | $ | 0.9 |  |  | $ | (122.2 | )
Other comprehensive income (loss) before reclassifications |  | — |  |  | 44.6 |  |  | (0.4 | ) |  | 44.2 |
Amounts reclassified from accumulated other comprehensive loss |  | 1.9 |  |  | — |  |  | (0.5 | ) |  | 1.4 |
Income tax expense |  | (0.7 | ) |  | — |  |  | — |  |  | (0.7 | )
Other comprehensive income (loss) |  | 1.2 |  |  | 44.6 |  |  | (0.9 | ) |  | 44.9 |
Balance at September 30, 2017 |  | $ | (25.2 | ) |  | $ | (52.1 | ) |  | $ | — |  |  | $ | (77.3 | )
Balance at January 1, 2016 |  | $ | (27.4 | ) |  | $ | (60.0 | ) |  | $ | 0.3 |  |  | $ | (87.1 | )
Other comprehensive loss before reclassifications |  | — |  |  | (5.3 | ) |  | (0.3 | ) |  | (5.6 | )
Amounts reclassified from accumulated other comprehensive loss |  | 1.8 |  |  | — |  |  | (0.2 | ) |  | 1.6 |
Income tax (expense) benefit |  | (0.7 | ) |  | — |  |  | 0.1 |  |  | (0.6 | )
Other comprehensive income (loss) |  | 1.1 |  |  | (5.3 | ) |  | (0.4 | ) |  | (4.6 | )
Balance at September 30, 2016 |  | $ | (26.3 | ) |  | $ | (65.3 | ) |  | $ | (0.1 | ) |  | $ | (91.7 | )
(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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