Goodwill and Other Identifiable Intangible Assets, Net (Goodwill Rollforward) (Details) $ in Thousands	6 Months Ended
	Mar. 31, 2023 USD ($)
Goodwill [Roll Forward]
Beginning balance	$ 340,477
Foreign currency translation adjustment	1,385
Ending balance	341,862
IoT Products & Services Segment
Goodwill [Roll Forward]
Beginning balance	172,931
Foreign currency translation adjustment	1,269
Ending balance	174,200
IoT Solutions Segment
Goodwill [Roll Forward]
Beginning balance	167,546
Foreign currency translation adjustment	116
Ending balance	$ 167,662