Goodwill and other Identifiable Intangible Assets (Tables)

12 Months Ended

Sep. 30, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Amortizable Identifiable Intangible Assets

Amortizable identifiable intangible assets, net as of September 30, 2021 and 2020 were comprised of the following (in thousands):

	September 30, 2021						September 30, 2020
	Gross carrying amount		Accum. amort.		Net		Gross carrying amount		Accum. amort.		Net
Purchased and core technology	$	69,162	$	(50,701)	$	18,461	$	76,011	$	(55,482)	$	20,529
License agreements	112		(112)		—		112		(112)		—
Patents and trademarks	23,491		(14,978)		8,513		22,836		(13,535)		9,301
Customer relationships	130,278		(39,973)		90,305		125,500		(34,232)		91,268
Non-compete agreements	600		(600)		—		600		(450)		150
Order backlog	1,000		(250)		750		—		—		—
Total	$	224,643	$	(106,614)	$	118,029	$	225,059	$	(103,811)	$	121,248

Schedule of Amortization Expense

Amortization expense for fiscal years 2021, 2020 and 2019 was as follows (in thousands):

Fiscal year	Total
2021	$	16,534
2020	$	14,754
2019	$	8,818

Schedule of Estimated Future Amortization Expense Related to Identifiable Intangible Assets

Estimated amortization expense for the next five fiscal years is as follows (in thousands):

Fiscal year	Total
2022	$	16,570
2023	$	13,579
2024	$	12,865
2025	$	9,408
2026	$	9,176

Schedule of Changes in Carrying Amount of Goodwill

The changes in the carrying amount of goodwill by reportable segments are (in thousands):

	IoT Products & Services		IoT Solutions		Total
Balance on September 30, 2019	$	103,519	$	49,903	$	153,422
Acquisitions	56,242		—		56,242
Foreign currency translation adjustment	604		(133)		471
Balance on September 30, 2020	$	160,365	$	49,770	$	210,135
Acquisition	13,472		—		13,472
Adjustments	847		—		847
Foreign currency translation adjustment	496		572		1,068
Balance on September 30, 2021	$	175,180	$	50,342	$	225,522