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Accumulated Other Comprehensive Loss (Tables)
 12 Months Ended
Jan. 31, 2019
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]  
Schedule of Accumulated Other Comprehensive (Loss) Income 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, 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 losses (gains) 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
)
Other comprehensive income (loss) before reclassifications
20.6

 
0.7

 
14.7

 
(58.3
)
 
(22.3
)
Pre-tax gains reclassified from accumulated other comprehensive income
12.1

 
1.3

 
0.3

 
—

 
13.7

Tax effects
(1.1
)
 
—

 
(2.0
)
 
0.5

 
(2.6
)
Net current period other comprehensive income (loss)
31.6

 
2.0

 
13.0

 
(57.8
)
 
(11.2
)
Balances, January 31, 2019
$
15.0

 
$
3.3

 
$
(16.3
)
 
$
(137.0
)
 
$
(135.0
)