Goodwill and Other Identifiable Intangible Assets, Net (Goodwill Rollforward) (Details) $ in Thousands	9 Months Ended
Jun. 30, 2021 USD ($)
Goodwill [Roll Forward]
Beginning balance	$ 210,135
Acquisition	8,617
Adjustment (see Note 2)	846
Foreign currency translation adjustment	1,733
Ending balance	221,331
IoT Products & Services Segment
Goodwill [Roll Forward]
Beginning balance	160,365
Acquisition	8,617
Adjustment (see Note 2)	846
Foreign currency translation adjustment	882
Ending balance	170,710
IoT Solutions Segment
Goodwill [Roll Forward]
Beginning balance	49,770
Acquisition	0
Adjustment (see Note 2)	0
Foreign currency translation adjustment	851
Ending balance	$ 50,621

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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