GOODWILL AND OTHER INTANGIBLE ASSETS (Tables)

6 Months Ended

Mar. 31, 2024

GOODWILL AND OTHER INTANGIBLE ASSETS

Schedule of intangible assets gross carrying amounts and accumulated amortization

	March 31,		September 30,
(Dollars in thousands)	2024		2023
Goodwill	$	535,661	503,177
Intangible assets with determinable lives:
Patents
Gross carrying amount	$	2,516	2,516
Less: accumulated amortization		1,287	1,218
Net	$	1,229	1,298
Capitalized software
Gross carrying amount	$	128,042	121,883
Less: accumulated amortization		86,622	80,774
Net	$	41,420	41,109
Customer relationships
Gross carrying amount	$	327,695	296,927
Less: accumulated amortization		122,542	113,311
Net	$	205,153	183,616
Other
Gross carrying amount	$	15,144	14,232
Less: accumulated amortization		10,870	9,578
Net	$	4,274	4,654
Intangible assets with indefinite lives:
Trade names	$	162,796	161,447

Schedule of carrying amount of goodwill attributable to each business segment

					Aerospace
(Dollars in millions)	USG		Test		& Defense	Total
Balance as of September 30, 2023	$	353.6		34.0	115.6	503.2
Acquisition activity		—		30.3	—	30.3
Foreign currency translation		1.4		0.8	—	2.2
Balance as of March 31, 2024	$	355.0		65.1	115.6	535.7