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Accumulated Other Comprehensive Loss (Tables) | 6 Months Ended
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Jul. 31, 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 July 31, 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 | (12.8 | ) |  | 0.1 |  |  | (0.1 | ) |  | 39.4 |  |  | 26.6 |
Pre-tax (gains) losses reclassified from accumulated other comprehensive loss | (1.6 | ) |  | — |  |  | (0.1 | ) |  | 0.1 |  |  | (1.6 | )
Tax effects | 1.4 |  |  | 0.1 |  |  | — |  |  | (0.9 | ) |  | 0.6 |
Net current period other comprehensive (loss) income | (13.0 | ) |  | 0.2 |  |  | (0.2 | ) |  | 38.6 |  |  | 25.6 |
Balances, July 31, 2017 | $ | 1.6 |  |  | $ | 1.7 |  |  | $ | (34.0 | ) |  | $ | (122.2 | ) |  | $ | (152.9 | )

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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=84228862&loc=SL7669686-108580 + Details
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