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CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($)
$ in Thousands
Common Stock [Member]
Additional Paid-In Capital [Member]
Retained Earnings [Member]
Cumulative Effect, Period of Adoption, Adjustment [Member]
Retained Earnings [Member]
Accumulated Other Comprehensive Income (Loss) [Member]
Cumulative Effect, Period of Adoption, Adjustment [Member]
Accumulated Other Comprehensive Income (Loss) [Member]
Treasury Stock [Member]
Cumulative Effect, Period of Adoption, Adjustment [Member]
Total
Beginning balance at Aug. 31, 2018 $ 20 $ 153,469 $ (225) $ 351,266 $ (98) $ (27,636) $ (321,630) $ (323) $ 155,489
Beginning balance, shares at Aug. 31, 2018 19,729,774           5,879,361    
Issuance of common stock under share-based compensation plan, net of shares withheld for taxes   (2,783)             (2,783)
Issuance of common stock under share-based compensation plan, net of shares withheld for taxes, shares 44,203                
Stock-based compensation   4,446             4,446
Cash dividends       (32,889)         (32,889)
Acquisition of treasury stock             $ (29,625)   (29,625)
Acquisition of treasury stock, shares             175,955    
Foreign currency translation adjustment           (4,748)     (4,748)
Net income       55,908         55,908
Ending balance at Aug. 31, 2019 $ 20 155,132   374,060   (32,482) $ (351,255)   145,475
Ending balance, shares at Aug. 31, 2019 19,773,977           6,055,316    
Issuance of common stock under share-based compensation plan, net of shares withheld for taxes   (2,640)             (2,640)
Issuance of common stock under share-based compensation plan, net of shares withheld for taxes, shares 38,708                
Stock-based compensation   5,358             5,358
Cash dividends       (36,039)         (36,039)
Acquisition of treasury stock             $ (16,825)   (16,825)
Acquisition of treasury stock, shares             92,583    
Foreign currency translation adjustment           4,274     4,274
Net income       60,710         60,710
Ending balance at Aug. 31, 2020 $ 20 157,850   398,731   (28,208) $ (368,080)   $ 160,313
Ending balance, shares at Aug. 31, 2020 19,812,685           6,147,899   13,664,786
Issuance of common stock under share-based compensation plan, net of shares withheld for taxes   (3,668)             $ (3,668)
Issuance of common stock under share-based compensation plan, net of shares withheld for taxes, shares 44,180                
Stock-based compensation   9,555             9,555
Cash dividends       (38,225)         (38,225)
Foreign currency translation adjustment           2,178     2,178
Net income       70,229         70,229
Ending balance at Aug. 31, 2021 $ 20 $ 163,737   $ 430,735   $ (26,030) $ (368,080)   $ 200,382
Ending balance, shares at Aug. 31, 2021 19,856,865           6,147,899   13,708,966