GOODWILL AND INTANGIBLE ASSETS (Tables)

6 Months Ended

Jun. 30, 2024

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Changes in Amount of Goodwill

Changes in the amount of goodwill for the six months ended June 30, 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	—		—		1.1		1.1
Foreign currency translation	(0.1)		—		(84.4)		(84.5)
Balance, June 30, 2024	$	2,520.1	$	2,006.2	$	2,220.2	$	6,746.5

Schedule of Purchased Intangible Assets

Purchased intangible assets, net, recorded on our Consolidated Balance Sheets at June 30, 2024 and December 31, 2023 consisted of the following:

	June 30, 2024						December 31, 2023
	Gross		Accumulated Amortization		Net		Gross		Accumulated Amortization		Net
Definite-lived intangible assets:	(In millions)
Purchased data files	$	1,141.8	$	(642.1)	$	499.7	$	1,158.5	$	(604.2)	$	554.3
Customer relationships	1,028.8		(517.6)		511.2		1,053.5		(484.2)		569.3
Proprietary database	705.6		(199.7)		505.9		705.8		(171.5)		534.3
Acquired software and technology	218.5		(89.3)		129.2		222.5		(75.4)		147.1
Trade names, non-compete agreements and other intangible assets	66.0		(21.7)		44.3		79.6		(25.8)		53.8
Total definite-lived intangible assets	$	3,160.7	$	(1,470.4)	$	1,690.3	$	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 June 30, 2024 is as follows:

Years ending December 31,	Amount
	(In millions)
2024	$	129.2
2025	252.9
2026	237.1
2027	224.4
2028	168.2
Thereafter	678.5
	$	1,690.3