GOODWILL AND OTHER INTANGIBLE ASSETS (Schedule Of Changes In The Carrying Amount Of Goodwill Attributable To Business Segment) (Details) $ in Thousands	3 Months Ended
	Dec. 31, 2016 USD ($)
Goodwill [Line Items]
Goodwill, Beginning Balance	$ 323,616
Adjustments	29,700
Goodwill, Ending Balance	353,303
Utility Solutions [Member]
Goodwill [Line Items]
Goodwill, Beginning Balance	226,200
Adjustments	0
Goodwill, Ending Balance	226,200
Test [Member]
Goodwill [Line Items]
Goodwill, Beginning Balance	34,100
Adjustments	0
Goodwill, Ending Balance	34,100
Filtration [Member]
Goodwill [Line Items]
Goodwill, Beginning Balance	43,900
Adjustments	30,400
Goodwill, Ending Balance	74,300
Technical Packaging [Member]
Goodwill [Line Items]
Goodwill, Beginning Balance	19,400
Adjustments	(700)
Goodwill, Ending Balance	$ 18,700