Segment Information (Details 3)	12 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2013
Segment Information
Percentage of net sales that were denominated in currencies other than U.S. dollars	36.00%	35.00%	32.00%
Foreign subsidiaries that accounted for the specified percentages of total assets and total liabilities
Total Assets (as a percent)	29.00%	28.00%
Total Liabilities (as a percent)	7.00%	6.00%