Goodwill and Other Intangibles - Summary of Company's Goodwill (Detail) $ in Thousands	6 Months Ended
Mar. 31, 2022 USD ($)
Goodwill [Line Items]
Beginning Balance	$ 110,612
Acquisitions	(1,284)
Foreign exchange	251
Ending Balance	109,579
Americas
Goodwill [Line Items]
Beginning Balance	73,696
Acquisitions	(1,284)
Foreign exchange	0
Ending Balance	72,412
EMEA
Goodwill [Line Items]
Beginning Balance	10,589
Acquisitions	0
Foreign exchange	(467)
Ending Balance	10,122
APAC
Goodwill [Line Items]
Beginning Balance	26,327
Acquisitions	0
Foreign exchange	718
Ending Balance	$ 27,045

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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