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Share Repurchase Plans	9 Months Ended
	May 31, 2017
Share Repurchase Plans [Abstract]
Share Repurchase Plans	Note 8. Share Repurchase Plans   On June 21, 2016, the Company’s Board of Directors approved a share buy-back plan. Under the plan, which became effective on September 1, 2016, the Company is authorized to acquire up to $75.0 million of its outstanding shares through August 31, 2018. The timing and amount of repurchases are based on terms and conditions as may be acceptable to the Company’s Chief Executive Officer and Chief Financial Officer and in compliance with all laws and regulations applicable thereto. During the period from September 1, 2016 through May 31, 2017, the Company repurchased 244,973 shares at a total cost of $26.2 million under this $75.0 million plan. 

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- Definition

The entire disclosure for treasury stock, including, but not limited to, average cost per share, description of share repurchase program, shares repurchased, shares held for each class of treasury stock.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 30
-URI http://asc.fasb.org/subtopic&trid=2208821

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