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CONDENSED CONSOLIDATED STATEMENT OF SHAREHOLDERS' EQUITY - 6 months ended Feb. 28, 2018 - USD ($)
$ in Thousands
Common Stock [Member]
Additional Paid-In Capital [Member]
Retained Earnings [Member]
Accumulated Other Comprehensive Income (Loss) [Member]
Treasury Stock [Member]
Total
Beginning balance at Aug. 31, 2017 $ 20 $ 150,692 $ 315,764 $ (28,075) $ (299,014) $ 139,387
Beginning balance, shares at Aug. 31, 2017 19,688,238       5,704,055 13,984,183
Issuance of common stock under share-based compensation plan, net of shares withheld for taxes   (1,583)       $ (1,583)
Issuance of common stock under share-based compensation plan, net of shares withheld for taxes, shares 41,154          
Stock-based compensation   3,238       3,238
Cash dividends ($1.03 per share)     (14,486)     (14,486)
Acquisition of treasury stock         $ (11,377) (11,377)
Acquisition of treasury stock, shares         96,400  
Foreign currency translation adjustment       11,654   11,654
Net income     27,448     27,448
Ending balance at Feb. 28, 2018 $ 20 152,536 328,598 $ (16,421) $ (310,391) $ 154,342
Ending balance, shares at Feb. 28, 2018 19,729,392       5,800,455 13,928,937
Cumulative effect of change in accounting principle   $ 189 $ (128)     $ 61