Stockholders' Equity (Activity for Stock Option Awards) (Details) shares in Thousands	3 Months Ended
	Dec. 31, 2015 $ / shares shares
Stock-Based Compensation
Number of options, beginning balance | shares	4,641
Weighted Average Exercise Price Per Share, beginning balance | $ / shares	$ 32.28
Options granted, Number of options | shares	1,055
Options granted, Weighted Average Exercise Price Per Share | $ / shares	$ 40.26
Options exercised, Number of options | shares	(49)
Options exercised, Weighted Average Exercise Price Per Share | $ / shares	$ 25.79
Options forfeited, Number of options | shares	(11)
Options forfeited, Weighted Average Exercise Price Per Share | $ / shares	$ 43.49
Number of options, ending balance | shares	5,636
Weighted Average Exercise Price Per Share, ending balance | $ / shares	$ 33.81