XML 24 R9.htm IDEA: XBRL DOCUMENT v3.8.0.1
CONSOLIDATED STATEMENT OF SHAREHOLDERS' EQUITY (PARENTHETICALS) - $ / shares
12 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2015
Statement of Stockholders' Equity [Abstract]      
Cash dividends per share $ 1.80 $ 1.68 $ 1.56