Goodwill (Schedule of Goodwill) (Details) $ in Thousands	3 Months Ended
	Dec. 31, 2021 USD ($)
Goodwill [Roll Forward]
Goodwill, beginning of the period	$ 407,376
Foreign currency translation	145
Goodwill, end of the period	407,521
Operating Segments | Integrated Solutions and Services
Goodwill [Roll Forward]
Goodwill, beginning of the period	233,830
Foreign currency translation	222
Goodwill, end of the period	234,052
Operating Segments | Applied Product Technologies
Goodwill [Roll Forward]
Goodwill, beginning of the period	173,546
Foreign currency translation	(77)
Goodwill, end of the period	$ 173,469