Income Taxes (Schedule Of Income Tax Reconciliation By Applying Federal Income Tax Rate) (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Income Tax Disclosure [Abstract]
U.S. Income Before Income Taxes	$ 404,284	$ 356,262
Income Tax Expense, Computed at U.S. Federal Statutory Rate of 35%	141,499	124,692
Increase (Reduction) in Taxes Resulting from State Income Taxes	26,285	25,726
Increase (Reduction) in Taxes Resulting From Miscellaneous	(5,483)	(6,315)
Total Income Taxes	$ 162,301	$ 144,103
Federal Statutory Rate	35.00%	35.00%