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Accumulated Other Comprehensive Income , Net of Taxes (Tables)
 6 Months Ended
Jul. 31, 2013
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]  
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
Accumulated other comprehensive loss, net of taxes, consisted of the following at July 31, 2013 and January 31, 2013:
 
 
July 31, 2013
 
January 31, 2013
Net gain on derivative instruments
$
7.7

 
$
2.8

Net unrealized gain on available-for-sale securities
3.5

 
4.6

Unfunded portion of pension plans
(14.7
)
 
(14.7
)
Foreign currency translation adjustments
(4.0
)
 
1.6

Accumulated other comprehensive loss
$
(7.5
)
 
$
(5.7
)