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Accumulated Other Comprehensive Loss (Tables) | 6 Months Ended
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Jul. 31, 2018
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] |
Schedule of Accumulated other comprehensive loss, net of taxes | Accumulated other comprehensive loss, net of taxes, consisted of the following at July 31, 2018:
| Net Unrealized Gains (Losses) on Derivative Instruments |  | Net Unrealized Gains (Losses) on Available-for-Sale Debt Securities |  | Defined Benefit Pension Components |  | Foreign Currency Translation Adjustments |  | Total
Balances, January 31, 2018 | $ | (16.6 | ) |  | $ | 1.3 |  |  | $ | (29.3 | ) |  | $ | (79.2 | ) |  | $ | (123.8 | )
Other comprehensive income (loss) before reclassifications | 15.1 |  |  | (0.7 | ) |  | 11.3 |  |  | (54.5 | ) |  | (28.8 | )
Pre-tax losses reclassified from accumulated other comprehensive loss | 4.3 |  |  | — |  |  | 0.2 |  |  | — |  |  | 4.5 |
Tax effects | (1.8 | ) |  | — |  |  | (1.5 | ) |  | 0.5 |  |  | (2.8 | )
Net current period other comprehensive income (loss) | 17.6 |  |  | (0.7 | ) |  | 10.0 |  |  | (54.0 | ) |  | (27.1 | )
Balances, July 31, 2018 | $ | 1.0 |  |  | $ | 0.6 |  |  | $ | (19.3 | ) |  | $ | (133.2 | ) |  | $ | (150.9 | )

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=114867106&loc=SL7669686-108580 + Details
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