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) - $ / shares
6 Months Ended
Mar. 31, 2016
Mar. 31, 2015
CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Unaudited) [Abstract]    
Purchase of treasury stock, shares (in shares) 151,259 212,626
Issuance of treasury stock, shares (in shares) 287,681 328,927
Cancellation of treasury stock, shares (in shares) 3,957 32,739
Dividends, per share (in dollars per share) $ 0.30 $ 0.26