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Interest and Other Expense, net (Tables) | 12 Months Ended
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Jan. 31, 2018
Interest and Other Income, net [Abstract] |
Interest and Other Income, net | Interest and other expense, net, consists of the following:
| Fiscal Year Ended January 31,
| 2018 |  | 2017 |  | 2016
Interest and investment expense, net | $ | (34.5 | ) |  | $ | (29.7 | ) |  | $ | (33.9 | )
Loss on foreign currency | (3.3 | ) |  | (3.3 | ) |  | — |
(Loss) gain on strategic investments | (16.4 | ) |  | 0.3 |  |  | 3.8 |
Other income | 6.0 |  |  | 8.5 |  |  | 8.5 |
Interest and other expense, net | $ | (48.2 | ) |  | $ | (24.2 | ) |  | $ | (21.6 | )

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