Stock-Based Compensation - SARs (Details) - Stock Appreciation Rights	3 Months Ended
Jul. 28, 2018 $ / shares shares
Stock-Based Compensation
Term of award	10 years
Fiscal 2014 Grant
Stock-Based Compensation
Number of awards outstanding (in shares) \| shares	20,438
Fair value per share (in dollars per share) \| $ / shares	$ 11.84
Fiscal 2013 Grant
Stock-Based Compensation
Number of awards outstanding (in shares) \| shares	7,149
Fair value per share (in dollars per share) \| $ / shares	$ 18.93

Per share weighted average intrinsic value of equity-based compensation awards not vested. Excludes stock and unit options.

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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.

+ References

No definition available.

+ Details

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- Definition

Number of equity instruments other than options outstanding, including both vested and non-vested instruments.

+ 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 (c)(1)(i)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(ii)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

+ Details

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- Definition

Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

+ Details

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- Details

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- Details

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