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Supplemental Cash Flow Information (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Jan. 31, 2013	Jan. 31, 2012	Jan. 31, 2011
Supplemental Cash Flow Information (Textual) [Abstract]
Cash payments for interest	$ 1.3	$ 1.4	$ 1.0
Cash payments (refunds) for income taxes	$ (5.3)	$ (0.2)	$ 2.9

The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes.

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