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Other Assets (Details) $ in Millions	9 Months Ended
	Oct. 31, 2015 USD ($)
Disclosure Text Block Supplement [Abstract]
Proceeds from Sale of Other Investments	$ 2.2

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- References

No definition available.

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- Definition

The cash inflow associated with the sale of other investments not otherwise defined in the taxonomy.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 230



-SubTopic 10



-Section 45



-Paragraph 12



-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3179-108585



Reference 2: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 230



-SubTopic 10



-Section 45



-Paragraph 24



-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3521-108585



Reference 3: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 230



-SubTopic 10



-Section 45



-Paragraph 26



-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3574-108585

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