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Segment Information and Major Customers Summary of Operating Results by Segment (Details) $ in Thousands	12 Months Ended
	Sep. 30, 2023 USD ($) segment	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)
Segment Reporting Information [Line Items]
Revenue	$ 444,849	$ 388,225	$ 308,632
Gross profit	252,203	216,286	166,657
Operating income (loss)	50,095	38,220	10,528
Depreciation and amortization	$ 31,976	33,839	20,877
Number of operating segments | segment	6
Number of reportable segments | segment	2
IoT Products & Services
Segment Reporting Information [Line Items]
Revenue	$ 345,680	297,645	264,173
Gross profit	187,958	160,117	144,472
Operating income (loss)	51,157	41,562	18,212
Depreciation and amortization	$ 12,544	13,974	13,109
Number of operating segments | segment	4
IoT Solutions
Segment Reporting Information [Line Items]
Revenue	$ 99,169	90,580	44,459
Gross profit	64,245	56,169	22,185
Operating income (loss)	(1,062)	(3,342)	(7,684)
Depreciation and amortization	$ 19,432	$ 19,865	$ 7,768
Number of operating segments | segment	2

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