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Earnings Per Share (Calculation of Basic and Diluted Income Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Feb. 24, 2018	Feb. 25, 2017	Feb. 24, 2018	Feb. 25, 2017
Earnings Per Share [Abstract]
Net income	$ 22,088	$ 15,278	$ 40,046	$ 27,016
Weighted average shares outstanding	31,654	31,577	31,634	29,707
Net income per share - basic (in dollars per share)	$ 0.70	$ 0.48	$ 1.27	$ 0.91
Dilutive impact of awards and options outstanding	200	109	218	120
Weighted average shares and potential dilutive shares outstanding	31,854	31,686	31,852	29,827
Net income per share - assuming dilution (in dollars per share)	$ 0.69	$ 0.48	$ 1.26	$ 0.91

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The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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