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Accumulated Other Comprehensive Loss (Tables) | 3 Months Ended
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Apr. 30, 2017
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] |
Schedule of Accumulated Other Comprehensive Loss | Accumulated other comprehensive loss, net of taxes, consisted of the following at April 30, 2017:
| 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, 2017 | $ | 14.6 |  |  | $ | 1.5 |  |  | $ | (33.8 | ) |  | $ | (160.8 | ) |  | $ | (178.5 | )
Other comprehensive (loss) income before reclassifications | (2.6 | ) |  | 1.0 |  |  | (0.1 | ) |  | 13.7 |  |  | 12.0 |
Pre-tax (gains) losses reclassified from accumulated other comprehensive loss | 0.7 |  |  | — |  |  | (0.4 | ) |  | — |  |  | 0.3 |
Tax effects | 0.5 |  |  | (0.3 | ) |  | — |  |  | (0.3 | ) |  | (0.1 | )
Net current period other comprehensive (loss) income | (1.4 | ) |  | 0.7 |  |  | (0.5 | ) |  | 13.4 |  |  | 12.2 |
Balances, April 30, 2017 | $ | 13.2 |  |  | $ | 2.2 |  |  | $ | (34.3 | ) |  | $ | (147.4 | ) |  | $ | (166.3 | )

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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=66004124&loc=SL7669686-108580 + Details
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