Annual report pursuant to Section 13 and 15(d)

CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Parenthetical)

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CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Parenthetical) (USD $)
12 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2011
CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY [Abstract]      
Purchase of treasury stock, shares (in shares) 619,981 1,015,879 1,319,375
Issuance of treasury stock, shares (in shares) 247,995 188,145 290,854
Dividends, per share (in dollars per share) $ 0.41 $ 0.37 $ 0.33