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Accumulated Other Comprehensive Loss
 12 Months Ended
Jan. 31, 2018
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]  
Accumulated Other Comprehensive Loss Accumulated Other Comprehensive Loss

Accumulated other comprehensive loss, net of taxes, consisted of the following:
 
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, 2016
$
15.7

 
$
0.2

 
$
(28.3
)
 
$
(108.7
)
 
$
(121.1
)
Other comprehensive income (loss) before reclassifications
7.4

 
3.3

 
(5.8
)
 
(52.3
)
 
(47.4
)
Pre-tax (gains) losses reclassified from accumulated other comprehensive income
(7.4
)
 
(1.5
)
 
1.2

 
—

 
(7.7
)
Tax effects
(1.1
)
 
(0.5
)
 
(0.9
)
 
0.2

 
(2.3
)
Net current period other comprehensive (loss) income
(1.1
)
 
1.3

 
(5.5
)
 
(52.1
)
 
(57.4
)
Balances, January 31, 2017
14.6

 
1.5

 
(33.8
)
 
(160.8
)
 
(178.5
)
Other comprehensive (loss) income before reclassifications
(24.5
)
 
(0.6
)
 
4.3

 
86.3

 
65.5

Pre-tax (gains) losses reclassified from accumulated other comprehensive income
(9.9
)
 
0.3

 
0.9

 
0.1

 
(8.6
)
Tax effects
3.2

 
0.1

 
(0.7
)
 
(4.8
)
 
(2.2
)
Net current period other comprehensive (loss) income
(31.2
)
 
(0.2
)
 
4.5

 
81.6

 
54.7

Balances, January 31, 2018
$
(16.6
)
 
$
1.3

 
$
(29.3
)
 
$
(79.2
)
 
$
(123.8
)


Reclassifications related to gains and losses on available-for-sale securities are included in Interest and other expense, net. Refer to Note 2, "Financial Instruments" for the amount and location of reclassifications related to derivative instruments. Reclassifications of the defined benefit pension components are included in the computation of net periodic benefit cost. Refer to Note 14, "Retirement Benefit Plans."