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Special Charges Summary of the Components of Special Charges (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jan. 31, 2014	Jan. 31, 2013	Jan. 31, 2012
Restructuring Cost and Reserve
Litigation costs	$ 11,597	$ 3,632	$ 0
Employee severance and related costs	4,392	4,016	8,437
Other	940	2,298	4,737
Special charges	$ 16,929	$ 9,946	$ 13,174

Amount of expenses for special or contractual termination benefits provided to current employees involuntarily terminated under a benefit arrangement associated exit or disposal activities pursuant to an authorized plan. Excludes expenses related to one-time termination benefits, a discontinued operation or an asset retirement obligation.

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