GOODWILL AND INTANGIBLE ASSETS (Tables)

9 Months Ended

Sep. 30, 2025

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, 2025 are as follows:

	Workforce Solutions		U.S. Information Solutions		International		Total
Balance, December 31, 2024	$	2,519.8	$	2,006.2	$	2,021.8	$	6,547.8
Foreign currency translation	0.2		—		116.7		116.9
Balance, September 30, 2025	$	2,520.0	$	2,006.2	$	2,138.5	$	6,664.7

Schedule of Purchased Intangible Assets

Purchased intangible assets, net, recorded on our Consolidated Balance Sheets at September 30, 2025 and December 31, 2024 consisted of the following:

	September 30, 2025						December 31, 2024
	Gross		Accumulated Amortization		Net		Gross		Accumulated Amortization		Net
Definite-lived intangible assets:	(In millions)
Purchased data files	$	1,135.2	$	(742.7)	$	392.5	$	1,111.9	$	(669.5)	$	442.4
Customer relationships	959.5		(540.4)		419.1		937.7		(484.2)		453.5
Proprietary database	699.9		(265.3)		434.6		704.9		(227.6)		477.3
Acquired software and technology	215.8		(130.7)		85.1		217.6		(106.3)		111.3
Trade names, non-compete agreements and other intangible assets	50.9		(13.7)		37.2		49.7		(13.2)		36.5
Total definite-lived intangible assets	$	3,061.3	$	(1,692.8)	$	1,368.5	$	3,021.8	$	(1,500.8)	$	1,521.0

Schedule of Estimated Future Amortization Expense

Estimated future amortization expense related to definite-lived purchased intangible assets at September 30, 2025 is as follows:

Years ending December 31,	Amount
	(In millions)
2025	$	62.0
2026	237.3
2027	224.2
2028	163.4
2029	148.4
Thereafter	533.2
	$	1,368.5