Goodwill and Acquired Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible Assets

Intangible assets consisted of the following as of September 30, 2020 (unaudited):

(in millions)	Gross Carrying Amount		Accumulated Amortization		Net		Weighted Average Amortization Period in Years
Intangible assets subject to amortization:
Customer relationships	$	268.6	$	(48.0)	$	220.6	15.0
Acquired technology	163.9		(79.2)		84.7		6.0
Brand portfolio	4.6		(2.9)		1.7		9.7
Net intangible assets subject to amortization	$	437.1	$	(130.1)	$	307.0
Intangible assets not subject to amortization
Pre-Acquisition ZI brand portfolio	$	33.0	$	—	$	33.0
Goodwill	$	966.8	$	—	$	966.8