Intangible Assets (Tables)

6 Months Ended

Mar. 31, 2021

Goodwill And Intangible Assets Disclosure [Abstract]

Schedule of Intangible Assets

Intangible assets consisted of the following:

	March 31, 2021
(In thousands)	Weighted Average Original Life (Years)		Gross Carrying Amount		Accumulated Amortization			Net
Definite-lived intangible assets:
Customer lists and relationships		8.9	$	13,359	$	(8,283	)	$	5,076
Developed technology		11.5		9,686		(4,659	)		5,027
Patents and other		14.1		3,551		(2,206	)		1,345
Total definite-lived intangible assets				26,596		(15,148	)		11,448
Unamortized intangible assets:
Trademarks and trade names				580		—			580
Total intangible assets			$	27,176	$	(15,148	)	$	12,028

	September 30, 2020
(In thousands)	Weighted Average Original Life (Years)		Gross Carrying Amount		Accumulated Amortization			Net
Definite-lived intangible assets:
Customer lists and relationships		8.9	$	13,356	$	(7,594	)	$	5,762
Developed technology		11.5		9,685		(4,200	)		5,485
Patents and other		14.1		3,551		(2,095	)		1,456
Total definite-lived intangible assets				26,592		(13,889	)		12,703
Unamortized intangible assets:
Trademarks and trade names				580		—			580
Total intangible assets			$	27,172	$	(13,889	)	$	13,283

Estimated Amortization Expense

Based on the intangible assets in service as of March 31, 2021, estimated amortization expense for the remainder of fiscal 2021 and each of the next five fiscal years is as follows:

(In thousands)
Remainder of 2021	$	1,232
2022		2,449
2023		1,844
2024		1,751
2025		1,712
2026		754