GOODWILL AND INTANGIBLE ASSETS (Tables)

9 Months Ended

Sep. 30, 2023

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Changes in Amount of Goodwill

Changes in the amount of goodwill for the nine months ended September 30, 2023, are as follows:

	Workforce Solutions		U.S. Information Solutions		International		Total
Balance, December 31, 2022	$	2,520.8	$	2,004.8	$	1,858.3	$	6,383.9
Acquisitions	—		—		410.4		410.4
Adjustments to initial purchase price allocation	(0.7)		1.4		0.3		1.0
Foreign currency translation	—		—		(64.5)		(64.5)
Balance, September 30, 2023	$	2,520.1	$	2,006.2	$	2,204.5	$	6,730.8

Schedule of Purchased Intangible Assets

Purchased intangible assets at September 30, 2023 and December 31, 2022 consisted of the following:

	September 30, 2023						December 31, 2022
	Gross		Accumulated Amortization		Net		Gross		Accumulated Amortization		Net
Definite-lived intangible assets:	(In millions)
Purchased data files	$	1,136.5	$	(574.5)	$	562.0	$	1,090.0	$	(527.8)	$	562.2
Customer relationships	1,036.7		(455.2)		581.5		874.6		(407.4)		467.2
Proprietary database	706.3		(157.3)		549.0		705.9		(115.0)		590.9
Acquired software and technology	222.2		(66.1)		156.1		225.4		(42.6)		182.8
Trade names, non-compete agreements and other intangible assets	83.3		(28.0)		55.3		41.2		(25.8)		15.4
Total definite-lived intangible assets	$	3,185.0	$	(1,281.1)	$	1,903.9	$	2,937.1	$	(1,118.6)	$	1,818.5

Schedule of Estimated Future Amortization Expense

Estimated future amortization expense related to definite-lived purchased intangible assets at September 30, 2023 is as follows:

Years ending December 31,	Amount
	(In millions)
2023	$	66.0
2024	252.2
2025	247.4
2026	231.5
2027	218.7
Thereafter	888.1
	$	1,903.9