Goodwill and Other Intangible Assets

9 Months Ended

Mar. 31, 2025

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in the carrying amount of goodwill were as follows ($000):


	Nine Months Ended March 31, 2025
	Networking		Materials		Lasers		Total
Balance-beginning of period	$	1,036,592	$	245,983	$	3,181,754	$	4,464,329


Foreign currency translation	371		2,813		(9,553)		(6,369)
Balance-end of period	$	1,036,963	$	248,796	$	3,172,201	$	4,457,960

We test goodwill for impairment annually during the fourth quarter of our fiscal year, or more frequently when events or changes in circumstances indicate that fair value is below carrying value.

The gross carrying amount and accumulated amortization of our intangible assets other than goodwill were as follows ($000):


	March 31, 2025						June 30, 2024
	Gross Carrying Amount		Accumulated Amortization		Net Book Value		Gross Carrying Amount		Accumulated Amortization		Net Book Value
Technology	$	1,655,392	$	(505,233)	$	1,150,159	$	1,653,289	$	(394,040)	$	1,259,249
Trade Names	438,470		(8,470)		430,000		438,470		(8,470)		430,000
Customer Lists	2,324,545		(622,187)		1,702,358		2,310,550		(498,252)		1,812,298
Backlog and Other	86,616		(86,616)		—		88,792		(87,092)		1,700
Total	$	4,505,023	$	(1,222,506)	$	3,282,517	$	4,491,101	$	(987,854)	$	3,503,247

Amortization expense in the quarter ended March 31, 2025 includes a total of $17 million of impairment charges in the Materials segment related to the abandonment of certain purchased technology and licenses, with $14 million recorded in cost of goods sold and $3 million recorded in R&D in our Consolidated Statements of Earnings (Loss).