Goodwill (Schedule of Goodwill) (Details) $ in Thousands	6 Months Ended
Mar. 31, 2022 USD ($)
Goodwill [Roll Forward]
Goodwill, beginning of the period	$ 407,376
Foreign currency translation	547
Goodwill, end of the period	476,259
Business combinations and divestitures	68,336
Operating Segments \| Integrated Solutions and Services
Goodwill [Roll Forward]
Goodwill, beginning of the period	233,830
Foreign currency translation	714
Goodwill, end of the period	302,914
Business combinations and divestitures	68,370
Operating Segments \| Applied Product Technologies
Goodwill [Roll Forward]
Goodwill, beginning of the period	173,546
Foreign currency translation	(167)
Goodwill, end of the period	173,345
Goodwill, Written off Related to Sale of Business Unit	$ (34)

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Reference 3: http://www.xbrl.org/2003/role/exampleRef
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Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

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Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Amount of divestiture of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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