Summary Of Significant Accounting Policies (Schedule Of Accumulated Other Comprehensive Loss) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2010
Summary Of Significant Accounting Policies [Abstract]
Foreign currency translation adjustments	$ 1,900	$ 2,286	$ 2,000
Defined benefit pension and postretirement plans activity	(7,172)	(5,415)	(2,783)
Total accumulated other comprehensive loss	$ (5,272)	$ (3,129)	$ (783)