Business Combination: Business Combinations: (Pro Forma Information) (Details) - Southern Tide - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	6 Months Ended
Jul. 30, 2016	Aug. 01, 2015	Jul. 30, 2016	Aug. 01, 2015
Business Acquisition [Line Items]
Net sales	$ 282,996	$ 258,983	$ 551,011	$ 530,919
Earnings from continuing operations before income taxes	38,489	33,928	72,853	67,998
Earnings from continuing operations	$ 24,475	$ 21,000	$ 46,480	$ 41,931
Basic (in usd per share)	$ 1.48	$ 1.28	$ 2.82	$ 2.55
Diluted (in usd per share)	$ 1.47	$ 1.27	$ 2.80	$ 2.54

Business Acquisition, Pro Forma Income (Loss) from Continuing Operations, before Tax

No definition available.

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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.

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- Definition

Per basic share amount of pro forma income from continuing operations, after tax, as if the business combination had been completed at the beginning of a period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(2)-(3)
-URI http://asc.fasb.org/extlink&oid=65885119&loc=d3e1392-128463

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- Definition

Per diluted share amount of pro forma income from continuing operations, after tax, as if the business combination had been completed at the beginning of a period.

+ References

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- Definition

Amount after tax of pro forma income from continuing operations as if the business combination had been completed at the beginning of a period.

+ References

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- Definition

The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

+ References

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