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Other Comprehensive Income (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2015 | Jun. 30, 2014 | Jun. 30, 2015 | Jun. 30, 2014
Reclassification adjustments, before tax: |  |  |  |
Amortization of net actuarial (gain) loss, before tax | $ 0.2 | $ (0.6) | $ 0.5 | $ (0.9)
Amortization of prior service cost, before tax | 0.8 | 2.6 | 1.5 | 5.4
Removal of obligation relating to Union VEBA | 0.0 | 0.0 | 106.6 | 0.0
Other comprehensive income relating to VEBAs, before tax | 1.0 | 2.0 | 108.6 | 4.5
Available for sale securities: |  |  |  |
Unrealized gain on available for sale securities, before tax | (0.3) | 0.2 | (0.3) | 0.3
Reclassification of unrealized gain upon sale of available for sale securities, before tax | 0.1 | (0.1) | 0.2 | (0.2)
Other comprehensive income (loss) relating to available for sale securities | (0.2) | 0.1 | (0.1) | 0.1
Unrealized Gain (Loss) on Foreign Currency Derivatives, Net, before Tax | (0.2) | 0.0 | (0.2) | 0.0
Foreign currency translation adjustment, before tax | 0.0 | (0.1) | 0.1 | 0.1
Other Comprehensive Income Cumulative Tax Rate Adjustments Before Tax |  | 0.0 |  |
Other comprehensive income, before tax | 0.6 | 2.0 | 108.4 | 4.7
Reclassification adjustments, income tax (expense) benefit: |  |  |  |
Amortization of net actuarial (gain) loss, income tax (expense) benefit | (0.1) | 0.2 | (0.2) | 0.3
Amortization of prior service cost, income tax (expense) benefit | (0.3) | (1.0) | (0.6) | (2.0)
Other Comprehensive Income (Loss), Finalization of Pension and Other Postretirement Benefit Plan Valuation, Tax |  |  | (40.4) |
Other comprehensive income relating to VEBAs, income tax (expense) benefit | (0.4) | (0.8) | (41.2) | (1.7)
Available for sale securities: |  |  |  |
Unrealized loss on available for sale securities | 0.1 | (0.1) | 0.1 | (0.1)
Reclassification adjustments, income tax (expense) benefit: |  |  |  |
Reclassification of unrealized gain upon sale of available for sale securities, income tax (expense) benefit | 0.0 | 0.1 | (0.1) | 0.1
Other comprehensive income (loss) relating to available for sale securities, income tax (expense) benefit | 0.1 | 0.0 | 0.0 | 0.0
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax | 0.1 |  | 0.1 |
Foreign currency translation adjustment, income tax (expense) benefit |  | 0.0 | 0.0 | 0.0
Other Comprehensive Income Cumulative Tax Rate Adjustments Tax |  | 0.9 |  |
Other comprehensive income, Income tax (expense) benefit | (0.2) | 0.1 | (41.1) | (1.7)
Reclassification adjustments, net of tax: |  |  |  |
Amortization of net actuarial (gain) loss, net of tax | 0.1 | (0.4) | 0.3 | (0.6)
Amortization of prior service cost, net of tax | 0.5 | 1.6 | 0.9 | 3.4
Other Comprehensive Income (Loss), Finalization of Pension and Other Postretirement Benefit Plan Valuation, Net of Tax |  |  | 66.2 |
Other comprehensive income relating to VEBAs, net of tax | 0.6 | 1.2 | 67.4 | 2.8
Available for sale securities: |  |  |  |
Unrealized gain on available for sale securities, net of tax | (0.2) | 0.1 | (0.2) | 0.2
Reclassification adjustments, net of tax: |  |  |  |
Reclassification of unrealized gain upon sale of available for sale securities, net of tax | 0.1 | 0.0 | 0.1 | (0.1)
Other comprehensive income (loss) relating to available for sale securities, net of tax | (0.1) | 0.1 | (0.1) | 0.1
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax | (0.1) |  | (0.1) |
Foreign currency translation adjustment, net of tax |  | (0.1) | 0.1 | 0.1
Other Comprehensive Income Cumulative Tax Rate Adjustments Net of Tax |  | 0.9 |  |
Other comprehensive income, net of tax | $ 0.4 | $ 2.1 | $ 67.3 | $ 3.0

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