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Goodwill and Other Identifiable Intangible Assets, Net (Additional Information) (Details) $ in Thousands	6 Months Ended
	Mar. 31, 2021 USD ($) segment	Sep. 30, 2020 USD ($)	Jun. 30, 2020 USD ($)
Goodwill [Line Items]
Goodwill	$ 227,533	$ 210,135
Market Capitalization			$ 338,200
Number of Reportable Segments | segment	2
IoT Products & Services Segment
Goodwill [Line Items]
Goodwill			157,100
IoT Solutions Segment
Goodwill [Line Items]
Goodwill			$ 49,600
IoT Products & Services Segment
Goodwill [Line Items]
Goodwill	$ 177,073	160,365
IoT Solutions Segment
Goodwill [Line Items]
Goodwill	$ 50,460	$ 49,770
Control Premium | Minimum
Goodwill [Line Items]
Goodwill Valuation Implied Control Premium			17.00%
Control Premium | Maximum
Goodwill [Line Items]
Goodwill Valuation Implied Control Premium			29.10%

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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 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
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Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
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