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Stock Based Compensation (Schedule of SARs Assumptions) (Details) - Stock Appreciation Rights (SARs) [Member] - $ / shares | 3 Months Ended | 12 Months Ended
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Apr. 28, 2015 | Jan. 28, 2017 | Jan. 30, 2016 | Jan. 31, 2015
Share Based Compensation Assumptions [Line Items] |  |  |  |
Expected dividend yield |  | 1.10% | 1.00% | 1.00%
Expected volatility |  | 35.51% | 36.05% | 37.82%
Maximum life |  | 3 years 1 month 6 days | 4 years 1 month 6 days | 2 years
Exercise multiple |  | $ 1.34 | $ 1.34 | $ 1.31
Maximum payout | $ 10.00 | $ 10.00 | $ 10.00 | $ 6.67
Minimum [Member] |  |  |  |
Share Based Compensation Assumptions [Line Items] |  |  |  |
Risk free interest rate yield curve |  | 0.49% | 0.22% | 0.01%
Employee exit rate |  | 2.20% | 2.20% | 2.20%
Maximum [Member] |  |  |  |
Share Based Compensation Assumptions [Line Items] |  |  |  |
Risk free interest rate yield curve |  | 1.94% | 1.33% | 1.18%
Employee exit rate |  | 9.00% | 9.00% | 9.00%

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- Definition Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Maximum Payout + References No definition available. + Details
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- Definition Share Based Compensation Assumptions [Line Items] + References No definition available. + Details
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- Definition Agreed-upon price for the exchange of the underlying asset relating to the share-based payment award. + References No definition available. + Details
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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 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)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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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. + 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)(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The risk-free interest rate assumption that is used in valuing an option on its own shares. + 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)(iv) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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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 + Details
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