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Interest and Other Expense, net
 12 Months Ended
Jan. 31, 2020
Other Income and Expenses [Abstract]  
Interest and Other Expense, net Interest and Other Expense, net

Interest and other expense, net, consists of the following:
 
Fiscal Year Ended January 31,
 
2020
 
2019
 
2018
Interest and investment expense, net
$
(54.0
)
 
$
(52.1
)
 
$
(34.5
)
Gain (loss) on foreign currency
3.9

 
5.1

 
(3.3
)
(Loss) gain on strategic investments
(3.3
)
 
12.5

 
(16.4
)
Other income
5.2

 
16.8

 
6.0

Interest and other expense, net
$
(48.2
)
 
$
(17.7
)
 
$
(48.2
)