The following table sets forth the changes in the carrying amount of goodwill (in millions):



Balance at December 31, 2024	$	1,507.3
Current period additions		49.0
Current period adjustments		0.2
Foreign currency effect		92.7
Balance at June 30, 2025	$	1,649.2

The following is a summary of intangible assets (in millions):


	June 30, 2025							December 31, 2024
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Existing technology and related patents	$	798.4	$	(338.9	)	$	459.5	$	724.5	$	(291.3	)	$	433.2
Customer relationships		613.9		(155.8	)		458.1		550.6		(125.6	)		425.0
Trade names		66.7		(21.9	)		44.8		60.9		(16.1	)		44.8
Other		18.2		(11.0	)		7.2		16.5		(7.0	)		9.5
Intangible assets	$	1,497.2	$	(527.6	)	$	969.6	$	1,352.5	$	(440.0	)	$	912.5

For the three months ended June 30, 2025, and 2024, the Company recorded amortization expense of $31.5 million and $25.1 million, respectively, related to intangible assets subject to amortization. For the six months ended June 30, 2025, and 2024, the Company recorded amortization expense of $58.8 million and $41.3 million, respectively, related to intangible assets subject to amortization.

On a quarterly basis, the Company reviews its goodwill and intangible assets to determine if there have been any triggering events that could indicate an impairment. Impairment losses are recorded when indicators of impairment are present and the quoted market price, if available or the estimated fair value of those assets are less than the assets’ carrying value, and are not recoverable. Determination of recoverability is based on an estimate of undiscounted future cash flows resulting from the use of the asset and its eventual disposition. Based on the results of these analyses, during the three and six months ended June 30, 2025, the Company recognized impairment charges of $6.8 million and $7.2 million respectively, to write off certain intangible assets. There were no such intangible assets impairment charges recorded during the three and six months ended June 30, 2024.

Current macroeconomic conditions and uncertainties, including inflationary pressures, changes to trade and tariff policies, customs duties imposed or that may be imposed by the new presidential administration in the U.S., geopolitical tensions and possible expansion of current conflicts, and increasing potential of conflict involving countries in Asia that are significant to the Company’s supply chain operations, such as Taiwan and China, could adversely impact the fair value of our reporting units and cause the Company to consider whether goodwill, intangible assets, and other long-lived assets may require an impairment assessment. The Company continues to monitor its goodwill, intangible assets, and other long-lived assets for impairment and additional charges may be recorded in the future from these analyses depending on market conditions and actual and forecasted future results.