Stockholders' Equity (Components Of Accumulated Other Comprehensive Loss, Net Of Taxes) (Details) (USD $) In Thousands, unless otherwise specified	Jan. 20, 2013	Sep. 30, 2012
Stockholders' Equity Note [Abstract]
Unrecognized periodic benefit costs, net of tax benefits of $56,070 and $58,743, respectively	$ (130,928)	$ (134,513)
Net unrealized losses related to cash flow hedges, net of tax benefits of $999 and $1,030, respectively	(1,243)	(1,500)
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax	3	0
Accumulated other comprehensive loss, net	(132,168)	(136,013)
Unrecognized periodic benefit costs, tax benefits	81,376	83,605
Net unrealized losses related to cash flow hedges, tax benefits	$ 773	$ 933