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Accumulated Other Comprehensive Income (Loss) (Tables) | 3 Months Ended
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Apr. 30, 2015
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] |
Schedule of Accumulated Other Comprehensive Income (Loss) | Accumulated other comprehensive loss, net of taxes, consisted of the following at April 30, 2015:
| Net Unrealized Gains (Losses) on Derivative Instruments |  | Net Unrealized Gains (Losses) on Available-for-Sale Securities |  | Defined Benefit Pension Components |  | Foreign Currency Translation Adjustments |  | Total
Balances, January 31, 2015 | $ | 42.8 |  |  | $ | 1.6 |  |  | $ | (23.7 | ) |  | $ | (74.0 | ) |  | $ | (53.3 | )
Other comprehensive income (loss) before reclassifications | 3.8 |  |  | 0.2 |  |  | 0.4 |  |  | (2.0 | ) |  | 2.4 |
Pre-tax (gains) losses reclassified from accumulated other comprehensive income | (7.7 | ) |  | 0.1 |  |  | 0.3 |  |  | — |  |  | (7.3 | )
Tax effects | (1.5 | ) |  | (0.1 | ) |  | — |  |  | 3.8 |  |  | 2.2 |
Net current period other comprehensive (loss) income | (5.4 | ) |  | 0.2 |  |  | 0.7 |  |  | 1.8 |  |  | (2.7 | )
Balances, April 30, 2015 | $ | 37.4 |  |  | $ | 1.8 |  |  | $ | (23.0 | ) |  | $ | (72.2 | ) |  | $ | (56.0 | )

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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=36458714&loc=SL7669686-108580 + Details
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