Consolidated Statements Of Comprehensive Income (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Consolidated Statements Of Comprehensive Income [Abstract]
Defined benefit pension and postretirement plans activity, tax	$ 52	$ 27	$ 153	$ 80
Unrealized gains/(losses) on available-for-sale securities, tax	35	9	34	9
Foreign currency translation adjustment, tax	$ 427	$ (184)	$ 784	$ 1,873