Goodwill and other Identifiable Intangible Assets (Goodwill) (Details) - USD ($) $ in Thousands	12 Months Ended
Sep. 30, 2020	Sep. 30, 2019
Goodwill [Line Items]
Goodwill	$ 153,422	$ 154,535
Acquisition	56,242
Foreign currency translation adjustment	471	(1,113)
Goodwill	210,135	153,422
IoT Solutions
Goodwill [Line Items]
Goodwill	49,903	50,177
Acquisition	0
Foreign currency translation adjustment	(133)	(274)
Goodwill	49,770	49,903
IoT Products and Services
Goodwill [Line Items]
Goodwill	103,519	104,358
Acquisition	56,242
Foreign currency translation adjustment	604	(839)
Goodwill	$ 160,365	$ 103,519

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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-Publisher FASB
-Name Accounting Standards Codification
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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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