Goodwill and Intangible Assets (Tables)

12 Months Ended

Sep. 30, 2023

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in Carrying Amount of Goodwill

The changes in the carrying amount of goodwill for the fiscal years ended September 30, 2023 and 2022 were as follows (dollars in thousands):

	Total
Balance as of September 30, 2021	$	1,128,511
Goodwill impairment		(213,720	)
Effect of foreign currency translation		(23,989	)
Balance as of September 30, 2022		890,802
Effect of foreign currency translation		9,540
Balance as of September 30, 2023	$	900,342

Summary of Gross Carrying Amounts and Accumulated Amortization of Intangible Assets by Major Class

The following tables summarizes the gross carrying amounts and accumulated amortization of intangible assets by major class (dollars in thousands):

	September 30, 2023
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Weighted Average Remaining Life (Years)
Customer relationships	$	106,713	$	(102,942	)	$	3,771		1.5
Technology and patents		89,431		(89,327	)		104		0.2
Total	$	196,144	$	(192,269	)	$	3,875

	September 30, 2022
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Weighted Average Remaining Life (Years)
Customer relationships	$	104,498	$	(95,315	)	$	9,183		1.7
Technology and patents		88,600		(88,083	)		517		1.2
Total	$	193,098	$	(183,398	)	$	9,700

Schedule of Estimated Amortization

Estimated amortization for the remaining life of our intangible assets as of September 30, 2023, is as follows (dollars in thousands):

Year Ending September 30,	Cost of Revenues		Operating Expenses		Total
2024		104		2,226	$	2,330
2025		—		1,545		1,545
Total	$	104	$	3,771	$	3,875