Supplemental Information (Subsequent Event) (Narrative) (Details) (USD $)	3 Months Ended		9 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014 Subsequent Event [Member]	Jul. 17, 2014 Subsequent Event [Member]
Subsequent Event [Line Items]
Dividends per share	$ 0.77	$ 0.71	$ 2.25	$ 2.06		$ 0.77
Dividend payable, date to be paid					Nov. 10, 2014
Dividend payable, date of record					Oct. 01, 2014