Stock-Based Compensation (Schedule of SARs Assumptions) (Details) - Stock Appreciation Rights (SARs) [Member] - $ / shares	3 Months Ended
Apr. 30, 2016	May. 02, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk free interest rate yield curve, minimum	0.16%	0.00%
Risk free interest rate yield curve, maximum	1.28%	1.50%
Expected dividend yield	1.00%	1.00%
Expected volatility	36.13%	37.68%
Maximum life	3 years 10 months 24 days	4 years 10 months 17 days
Exercise multiple	1.34	1.31
Maximum payout	$ 10.00	$ 10.00
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee exit rate	2.20%	2.20%
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee exit rate	9.00%	9.00%

Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Employee Exit Rate

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- Definition

Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Exercise Multiple

+ References

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- Definition

Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Maximum Payout

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- Definition

The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

+ References

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- Definition

The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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- Definition

The maximum risk-free interest rate assumption that is used in valuing an option on its own shares.

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No definition available.

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- Definition

The minimum risk-free interest rate assumption that is used in valuing an option on its own shares.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)(i)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 14.D.2)
-URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809

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