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, 2017 USD ($)
Goodwill [Line Items]
Goodwill, Beginning Balance	$ 377,879
Acquisition activity - working capital adj	200
Foreign currency translation and other	400
Goodwill, Ending Balance	378,510
Filtration [Member]
Goodwill [Line Items]
Goodwill, Beginning Balance	73,700
Acquisition activity - working capital adj	0
Foreign currency translation and other	0
Goodwill, Ending Balance	73,700
Test [Member]
Goodwill [Line Items]
Goodwill, Beginning Balance	34,100
Acquisition activity - working capital adj	0
Foreign currency translation and other	0
Goodwill, Ending Balance	34,100
Utility Solutions [Member]
Goodwill [Line Items]
Goodwill, Beginning Balance	250,200
Acquisition activity - working capital adj	200
Foreign currency translation and other	0
Goodwill, Ending Balance	250,400
Technical Packaging [Member]
Goodwill [Line Items]
Goodwill, Beginning Balance	19,900
Acquisition activity - working capital adj	0
Foreign currency translation and other	400
Goodwill, Ending Balance	$ 20,300