Goodwill and Acquired Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2023

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