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Shareholders' Equity | 3 Months Ended
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Mar. 31, 2019
Equity [Abstract] |
Shareholders' Equity | Shareholders' Equity Reclassifications from Accumulated Other Comprehensive Loss – The following table sets forth the significant amounts reclassified out of each component of accumulated other comprehensive loss and their effect on net income (loss) for the period (in millions):
| Three months ended March 31,
| 2019 |  | 2018
Amounts recognized as a component of net periodic pension and other postretirement benefit cost: |  |  |
Amortization of net loss | $ | (2.4 | ) |  | $ | (8.0 | )
Amortization of prior service credit | 3.0 |  |  | 4.5 |
Total before income taxes | 0.6 |  |  | (3.5 | )
Income tax (expense) benefit | (0.1 | ) |  | 0.7 |
Total reclassifications for the period, net of income taxes | $ | 0.5 |  |  | $ | (2.8 | )
The Company records unrealized gains and losses related to net periodic pension and other postretirement benefit cost net of estimated taxes in Accumulated other comprehensive income (loss).

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- Definition The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -URI http://asc.fasb.org/topic&trid=2208762 + Details
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