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Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Sep. 30, 2024

Goodwill and Other Intangible Assets

Schedule of intangible assets gross carrying amounts and accumulated amortization

​

​	​	​	​	​	​
(Dollars in thousands)		2024			2023
Goodwill	​	$	539,899	​	503,177
​	​		​	​	​
Intangible assets with determinable lives:	​		​	​	​
Patents	​		​	​	​
Gross carrying amount	​	$	2,638	​	2,516
Less: accumulated amortization	​		1,415	​	1,218
Net	​	$	1,223	​	1,298
​	​		​	​	​
Capitalized software	​		​	​	​
Gross carrying amount	​	$	134,119	​	121,883
Less: accumulated amortization	​		92,878	​	80,774
Net	​	$	41,241	​	41,109
​	​		​	​	​
Customer Relationships	​		​	​	​
Gross carrying amount	​	$	330,328	​	296,927
Less: accumulated amortization	​		132,135	​	113,311
Net	​	$	198,193	​	183,616
​	​		​	​	​
Other	​		​	​	​
Gross carrying amount	​	$	15,182	​	14,232
Less: accumulated amortization	​		11,173	​	9,578
Net	​	$	4,009	​	4,654
Intangible assets with indefinite lives:	​		​	​	​
Trade names	​	$	162,936	​	161,447

Schedule of carrying amount of goodwill attributable to each business segment

​

​	​	​	​	​	​	​	​	​	​	​
(Dollars in millions)		A&D			Test			USG		Total
Balance as of September 30, 2022	​	$	110.0	​	​	34.0	​	348.7	​	492.7
Acquisition activity	​	​	5.6	​	​	—	​	—	​	5.6
Foreign currency translation and other	​	​	—	​	​	—	​	4.9	​	4.9
Balance as of September 30, 2023	​	$	115.6	​	​	34.0	​	353.6	​	503.2
Acquisition activity	​	​	—	​	​	30.9	​	—	​	30.9
Foreign currency translation and other	​	​	—	​	​	2.5	​	3.3	​	5.8
Balance as of September 30, 2024	​	$	115.6	​	​	67.4	​	356.9	​	539.9

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Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule.

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Tabular disclosure of goodwill and intangible assets, which may be broken down by segment or major class.

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