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Comprehensive Income (Loss) | 6 Months Ended
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Sep. 30, 2018
Equity [Abstract] |
Comprehensive Income (Loss) | Comprehensive Income (Loss) The following table presents the changes in the components of accumulated other comprehensive income (loss) (AOCI), net of tax, for the six months ended September 30, 2018 (in millions):
| Unrealized holding gains (losses) available-for-sale debt securities |  | Defined benefit pension plans |  | Foreign Currency |  | Total
Accumulated other comprehensive income (loss) at March 31, 2018 | $ | 1.9 |  |  | $ | (10.1 | ) |  | $ | (9.4 | ) |  | $ | (17.6 | )
Impact of change in accounting principle | (1.7 | ) |  | — |  |  | — |  |  | (1.7 | )
Opening Balance as of April 1, 2018 | 0.2 |  |  | (10.1 | ) |  | (9.4 | ) |  | (19.3 | )
Other comprehensive (loss) income before reclassifications | (5.6 | ) |  | 3.5 |  |  | (1.4 | ) |  | (3.5 | )
Amounts reclassified from accumulated other comprehensive loss | 5.6 |  |  | 0.5 |  |  | — |  |  | 6.1 |
Net other comprehensive income (loss) | — |  |  | 4.0 |  |  | (1.4 | ) |  | 2.6 |
Accumulated other comprehensive income (loss) at September 30, 2018 | $ | 0.2 |  |  | $ | (6.1 | ) |  | $ | (10.8 | ) |  | $ | (16.7 | )
The table below details where reclassifications of realized transactions out of AOCI are recorded on the condensed consolidated statements of income (in millions):
|  | Three Months Ended |  | Six Months Ended |  |
|  | September 30, |  | September 30, |  |
Description of AOCI Component |  | 2018 |  | 2017 |  | 2018 |  | 2017 |  | Related Statement of Income Line
Unrealized losses on available-for-sale debt securities |  | $ | — |  |  | $ | — |  |  | $ | 5.6 |  |  | $ | — |  |  | Other income (loss)
Amortization of actuarial loss |  | 0.2 |  |  | — |  |  | 0.5 |  |  | — |  |  | Other income (loss)
Reclassification of realized transactions, net of taxes |  | $ | 0.2 |  |  | $ | — |  |  | $ | 6.1 |  |  | $ | — |  |  | Net income

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- Definition The entire disclosure for comprehensive income, which includes, but is not limited to, 1) the amount of income tax expense or benefit allocated to each component of other comprehensive income, including reclassification adjustments, 2) the reclassification adjustments for each classification of other comprehensive income and 3) the ending accumulated balances for each component of comprehensive income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -URI http://asc.fasb.org/topic&trid=2134417 + Details
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- References No definition available. + Details
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