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Accumulated Other Comprehensive Income , Net of Taxes (Tables)
 9 Months Ended
Oct. 31, 2012
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]  
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
, net of taxes, was comprised of the following at October 31, 2012 and January 31, 2012:
 
 
October 31, 2012
 
January 31, 2012
Net gain on derivative instruments
$
0.6

 
$
9.2

Net unrealized gain on available-for-sale securities
1.8

 
2.6

Unfunded portion of pension plans
(8.6
)
 
(8.6
)
Foreign currency translation adjustments
(0.2
)
 
2.7

Accumulated other comprehensive (loss) income
$
(6.4
)
 
$
5.9