Income Taxes (Reconciliation Of The Total Amount Of Gross Unrecognized Tax Benefits) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Jan. 31, 2015	Jan. 31, 2014	Jan. 31, 2013
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Gross unrecognized tax benefits, beginning balance	$ 5,859us-gaap_UnrecognizedTaxBenefits	$ 5,599us-gaap_UnrecognizedTaxBenefits	$ 3,685us-gaap_UnrecognizedTaxBenefits
Increases in tax positions for prior years	845	1,956	2,890
Decreases in tax positions for prior years	(730)	(420)	(127)
Increases in tax positions for current year	105	93	171
Expiration of statutes of limitation	(63)	(77)	(38)
Settlements		(1,295)	(1,106)
Gross unrecognized tax benefits, ending balance	5,125us-gaap_UnrecognizedTaxBenefits	5,859us-gaap_UnrecognizedTaxBenefits	5,599us-gaap_UnrecognizedTaxBenefits
Unrecognized Tax Benefits, Increase Resulting from Foreign Currency Translation	$ (891)	$ (3)	$ (124)

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Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns.

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-Name Accounting Standards Codification

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Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities.

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Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.

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Amount of increase in unrecognized tax benefits resulting from foreign currency translation.

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Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

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