Equity Award Plans - Summary of Cumulative Minimum and Maximum Restricted Stock Units Award Activity (Details) (Executive Officer, Restricted Stock Units (RSUs), USD $)	9 Months Ended
	Jun. 30, 2014
2014 Awards | Performance Period Fiscal 2014 to 2016
Deferred Compensation Arrangement With Individual Share Based Payments [Line Items]
Minimum RSU Cumulative Operating Income	$ 124,110,000
Minimum cumulative restricted stock units available for future declaration	15,113
Maximum RSU Cumulative Operating Income	149,728,000
Maximum cumulative restricted stock units available for future declaration	45,337
2013 Awards | Performance Period Fiscal 2013 to 2015
Deferred Compensation Arrangement With Individual Share Based Payments [Line Items]
Minimum RSU Cumulative Operating Income	109,582,000
Minimum cumulative restricted stock units available for future declaration	18,541
Maximum RSU Cumulative Operating Income	132,201,000
Maximum cumulative restricted stock units available for future declaration	55,621
2012 Awards | Performance Period Fiscal 2012 to 2014
Deferred Compensation Arrangement With Individual Share Based Payments [Line Items]
Minimum RSU Cumulative Operating Income	120,000,000
Minimum cumulative restricted stock units available for future declaration	19,531
Maximum RSU Cumulative Operating Income	$ 132,000,000
Maximum cumulative restricted stock units available for future declaration	58,590