Goodwill and Acquired Intangible Assets

6 Months Ended

Jun. 30, 2023

Goodwill and Intangible Assets Disclosure [Abstract]

Note 7 - Goodwill and Acquired Intangible Assets

Intangible assets consisted of the following as of June 30, 2023:



(in millions)	Gross Carrying Amount		Accumulated Amortization		Net		Weighted Average Amortization Period in Years
Intangible assets subject to amortization:
Customer relationships	$	287.6	$	(102.3)	$	185.3	14.5
Acquired technology	330.8		(189.3)		141.5		6.4
Brand portfolio	11.5		(6.8)		4.7		7.9
Net intangible assets subject to amortization	$	629.9	$	(298.4)	$	331.5

Intangible assets not subject to amortization
Pre-Acquisition ZI brand portfolio	$	33.0	$	—	$	33.0
Goodwill	$	1,692.7	$	—	$	1,692.7

Amortization expense was $15.0 million and $17.9 million for the three months ended June 30, 2023 and 2022, respectively. Amortization expense was $31.1 million and $34.4 million for the six months ended June 30, 2023 and 2022, respectively.

Goodwill was $1,692.7 million as of June 30, 2023. There have been no changes to goodwill amounts since December 31, 2022.

Based on the results of the Company’s impairment assessment, the Company did not recognize any impairment of goodwill during the six months ended June 30, 2023 or June 30, 2022.