Acquisitions (Details 3) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	6 Months Ended
Sep. 02, 2017	Aug. 27, 2016	Sep. 02, 2017	Aug. 27, 2016
Business Combinations [Abstract]
Net sales	$ 351,988	$ 372,770	$ 696,039	$ 714,965
Net earnings	$ 20,312	$ 25,792	$ 37,528	$ 46,201
Earnings per share
Basic (USD per share)	$ 0.70	$ 0.89	$ 1.30	$ 1.60
Diluted (USD per share)	$ 0.70	$ 0.89	$ 1.30	$ 1.60

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.

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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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.

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

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

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