Quarterly report pursuant to Section 13 or 15(d)

CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Unaudited) (Parenthetical)

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CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Unaudited) (Parenthetical) (USD $)
9 Months Ended
Jun. 30, 2012
Jun. 30, 2011
CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Unaudited) [Abstract]    
Purchase of treasury stock, shares (in shares) 618,366 394,208
Issuance of treasury stock, shares (in shares) 184,806 283,897
Dividends, per share (in dollars per share) $ 0.27 $ 0.24