GOODWILL AND INTANGIBLE ASSETS (Tables)

3 Months Ended

Mar. 31, 2024

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Changes in Amount of Goodwill

Changes in the amount of goodwill for the three months ended March 31, 2024, are as follows:

	Workforce Solutions		U.S. Information Solutions		International		Total
Balance, December 31, 2023	$	2,520.2	$	2,006.2	$	2,303.5	$	6,829.9
Adjustments to initial purchase price allocation	—		—		1.7		1.7
Foreign currency translation	(0.1)		—		(70.2)		(70.3)
Balance, March 31, 2024	$	2,520.1	$	2,006.2	$	2,235.0	$	6,761.3

Schedule of Purchased Intangible Assets

Purchased intangible assets, net, recorded on our Consolidated Balance Sheets at March 31, 2024 and December 31, 2023 consisted of the following:

	March 31, 2024						December 31, 2023
	Gross		Accumulated Amortization		Net		Gross		Accumulated Amortization		Net
Definite-lived intangible assets:	(In millions)
Purchased data files	$	1,141.8	$	(618.6)	$	523.2	$	1,158.5	$	(604.2)	$	554.3
Customer relationships	1,040.7		(498.7)		542.0		1,053.5		(484.2)		569.3
Proprietary database	705.7		(185.6)		520.1		705.8		(171.5)		534.3
Acquired software and technology	222.2		(84.2)		138.0		222.5		(75.4)		147.1
Trade names, non-compete agreements and other intangible assets	74.0		(23.8)		50.2		79.6		(25.8)		53.8
Total definite-lived intangible assets	$	3,184.4	$	(1,410.9)	$	1,773.5	$	3,219.9	$	(1,361.1)	$	1,858.8

Schedule of Estimated Future Amortization Expense

Estimated future amortization expense related to definite-lived purchased intangible assets at March 31, 2024 is as follows:

Years ending December 31,	Amount
	(In millions)
2024	$	196.1
2025	255.1
2026	239.2
2027	226.5
2028	170.4
Thereafter	686.2
	$	1,773.5