Verisk Analytics (VRSK) 10-K 26 Feb 25 2024 FY Annual report Financial data

Document And Entity Information

Document And Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2024	Feb. 21, 2025	Jun. 30, 2024
Document Information [Line Items]
Entity Central Index Key	0001442145
Entity Registrant Name	Verisk Analytics, Inc.
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2024
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2024
Document Transition Report	false
Entity File Number	001-34480
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	26-2994223
Entity Address, Address Line One	545 Washington Boulevard
Entity Address, City or Town	Jersey City
Entity Address, State or Province	NJ
Entity Address, Postal Zip Code	07310-1686
City Area Code	201
Local Phone Number	469-3000
Title of 12(b) Security	Common Stock $.001 par value
Trading Symbol	VRSK
Security Exchange Name	NASDAQ
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	true
Document Financial Statement Error Correction [Flag]	false
Entity Shell Company	false
Entity Public Float			$ 37,477,230,712
Entity Common Stock, Shares Outstanding		140,276,165
Auditor Firm ID	34
Auditor Name	Deloitte & Touche LLP
Auditor Location	Morristown, New Jersey

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 291.2	$ 302.7
Accounts receivable, net	434.4	334.2
Prepaid expenses	72.8	84.5
Income taxes receivable	83.3	23.5
Other current assets	29.9	65.2
Total current assets	911.6	810.1
Noncurrent assets:
Fixed assets, net	605.9	604.9
Operating lease right-of-use assets, net	156	191.7
Intangible assets, net	392.4	471.7
Goodwill	1,726.6	1,760.8
Deferred income tax assets	34.3	30.8
Other noncurrent assets	437.9	496.1
Total assets	4,264.7	4,366.1
Liabilities, Current [Abstract]
Accounts payable and accrued liabilities	249.8	340.8
Short-term debt and current portion of long-term debt	514.2	14.5
Deferred revenues	447.2	375.1
Operating lease liabilities	26	33.1
Income taxes payable	1.7	7.9
Total current liabilities	1,238.9	771.4
Liabilities, Noncurrent [Abstract]
Long-term debt	2,546.9	2,852.2
Deferred income tax liabilities	191.6	210.1
Operating lease liabilities	158.7	195.6
Other noncurrent liabilities	23.6	14.6
Total liabilities	4,159.7	4,043.9
Commitments and contingencies (Note 21)
Stockholders’ equity:
Common stock, $.001 par value; 2,000,000,000 shares authorized; 544,003,038 shares issued; 140,414,637 and 143,308,729 shares outstanding, respectively	0.1	0.1
Additional paid-in capital	2,994	2,872.3
Treasury stock, at cost, 403,588,401 and 400,694,309 shares, respectively	(10,062.4)	(9,037.5)
Retained earnings	7,153.4	6,416.9
Accumulated other comprehensive income	15	58.2
Total Verisk stockholders' equity	100.1	310
Noncontrolling interests	4.9	12.2
Total stockholders’ equity	105	322.2
Total liabilities and stockholders’ equity	$ 4,264.7	$ 4,366.1

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parentheticals) - $ / shares	Dec. 31, 2024	Dec. 31, 2023
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock authorized (in shares)	2,000,000,000	2,000,000,000
Common stock issued (in shares)	544,003,038	544,003,038
Common stock outstanding (in shares)	140,414,637	143,308,729
Treasury stock (in shares)	403,588,401	400,694,309

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Revenues	$ 2,881.7	$ 2,681.4	$ 2,497
Operating expenses:
Cost of revenues (exclusive of items shown separately below)	901.1	876.5	824.6
Selling, general and administrative	408.7	391.8	381.5
Depreciation and amortization of fixed assets	233.6	206.8	164.2
Amortization of intangible assets	72.3	74.6	74.4
Other operating loss (income)	12.1	0	(354.2)
Total operating expenses	1,627.8	1,549.7	1,090.5
Operating income	1,253.9	1,131.7	1,406.5
Other expense:
Net gain on early extinguishment of debt	3.6	0	0
Investment income (loss) and others, net	95.7	11	(5.3)
Interest expense, net	(124.6)	(115.5)	(138.8)
Total other expense, net	(25.3)	(104.5)	(144.1)
Total income before income taxes	1,228.6	1,027.2	1,262.4
Provision for income taxes	(277.9)	(258.8)	(220.3)
Income from continuing operations	950.7	768.4	1,042.1
Gain (loss) from discontinued operations, net of tax benefit (expense) of $6.8, $(12.6) and $131.5, respectively (Note 11)	6.8	(154)	(87.8)
Net income	957.5	614.4	954.3
Less: Net loss (income) attributable to noncontrolling interests	0.7	0.2	(0.4)
Net income attributable to Verisk	$ 958.2	$ 614.6	$ 953.9
Income from continuing operations (in dollars per share)	$ 6.69	$ 5.24	$ 6.6
Income (loss) from discontinued operations (in dollars per share)	0.05	(1.05)	(0.56)
Basic net income per share attributable to Verisk: (in dollars per share)	6.74	4.19	6.04
Income from continuing operations (in dollars per share)	6.66	5.22	6.55
Income (loss) from discontinued operations (in dollars per share)	0.05	(1.05)	(0.55)
Diluted net income per share attributable to Verisk: (in dollars per share)	$ 6.71	$ 4.17	$ 6
Weighted average shares outstanding:
Basic (in shares)	142,154,655	146,623,989	157,905,718
Diluted (in shares)	142,842,261	147,336,159	158,928,942

Consolidated Statements of Op_2

Consolidated Statements of Operations (Parentheticals) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
(Loss) Income from discontinued operations, tax	$ 6.8	$ (12.6)	$ 131.5

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Net income	$ 957.5	$ 614.4	$ 954.3
Other comprehensive (loss) income, net of tax:
Foreign currency translation adjustment	(39.7)	768.2	(300.3)
Pension and postretirement liability adjustment	(2.6)	21.8	(37.7)
Total other comprehensive (loss) income	(42.3)	790	(338)
Comprehensive income	915.2	1,404.4	616.3
Less: Comprehensive (gain) loss attributable to noncontrolling interests	(0.9)	(0.4)	1.1
Comprehensive income attributable to Verisk	$ 914.3	$ 1,404	$ 617.4

Consolidated Statements of Chan

Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Millions		Share-Based Payment Arrangement, Option [Member] Common Stock [Member]	Share-Based Payment Arrangement, Option [Member] Additional Paid-in Capital [Member]	Share-Based Payment Arrangement, Option [Member] Treasury Stock, Common [Member]	Share-Based Payment Arrangement, Option [Member] Retained Earnings [Member]	Share-Based Payment Arrangement, Option [Member] AOCI Attributable to Parent [Member]	Share-Based Payment Arrangement, Option [Member] Parent [Member]	Share-Based Payment Arrangement, Option [Member] Noncontrolling Interest [Member]	Share-Based Payment Arrangement, Option [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Treasury Stock, Common [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Parent [Member]	Noncontrolling Interest [Member]	Total
Balance (in shares) at Dec. 31, 2021										544,003,038
Balance at Dec. 31, 2021										$ 0.1	$ 2,608.7	$ (4,638.1)	$ 5,240.4	$ (394.6)	$ 2,816.5	$ 26	$ 2,842.5
Net income										0	0	0	953.9	0	953.9	0.4	954.3
Other comprehensive income (loss)										0	0	0	0	(335.5)	(335.5)	(1.4)	(336.9)
Investment in noncontrolling interests										0	(0.5)	0	0	(1.1)	(1.6)	(6.6)	(8.2)
Common stock dividend (1)	[1]									0	0	0	(195.2)	0	(195.2)	0	(195.2)
Treasury stock acquired										0	0	(1,662.5)	0	0	(1,662.5)	0	(1,662.5)
Treasury stock share repurchased not yet settled										0	(37.5)	37.5	0	0	0	0	0
Stock options exercised		$ 0	$ 111.9	$ 20.6	$ 0	$ 0	$ 132.5	$ 0	$ 132.5
PSUs lapsed										0	(0.6)	0.6	0	0	0	0	0
RSAs lapsed										0	(1.7)	1.7	0	0	0	0	0
Stock-based compensation										0	56.5	0	0	0	56.5	0	56.5
Net share settlement from PSUs and RSAs										0	(20.7)	0	0	0	(20.7)	0	(20.7)
Other stock issuances										$ 0	4.7	0.7	0	0	5.4	0	5.4
Balance (in shares) at Dec. 31, 2022										544,003,038
Balance at Dec. 31, 2022										$ 0.1	2,720.8	(6,239.5)	5,999.1	(731.2)	1,749.3	18.4	1,767.7
Net income										0	0	0	614.6	0	614.6	(0.2)	614.4
Other comprehensive income (loss)										0	0	0	0	790	790	0.6	790.6
Investment in noncontrolling interests										0	(3.9)	0	0	(0.6)	(4.5)	(6.6)	(11.1)
Common stock dividend (1)	[1]									0	0	0	(196.8)	0	(196.8)	0	(196.8)
Treasury stock acquired										0	37.5	(2,838.7)	0	0	(2,801.2)	0	(2,801.2)
Treasury stock share repurchased not yet settled										0	(37.5)	37.5	0	0	0		0
Stock options exercised										0	115.5	25.6	0	0	141.1	0	141.1
PSUs lapsed										0	(0.4)	0.4	0	0	0	0	0
RSAs lapsed										0	(1.7)	1.7	0	0	0	0	0
Stock-based compensation										0	54	0	0	0	54	0	54
Net share settlement from PSUs and RSAs										0	(15.3)	0	0	0	(15.3)	0	(15.3)
Other stock issuances										0	3.3	0.7	0	0	4	0	4
Excise tax associated with share repurchases										$ 0	0	(25.2)	0	0	(25.2)	0	(25.2)
Balance (in shares) at Dec. 31, 2023										544,003,038
Balance at Dec. 31, 2023										$ 0.1	2,872.3	(9,037.5)	6,416.9	58.2	310	12.2	322.2
Net income										0	0	0	958.2	0	958.2	(0.7)	957.5
Other comprehensive income (loss)										0	0	0	0	(44.3)	(44.3)	0.9	(43.4)
Investment in noncontrolling interests										0	(7)	0	0	1.1	(5.9)	(7.5)	(13.4)
Common stock dividend (1)	[1]									0	0	0	(221.7)	0	(221.7)	0	(221.7)
Treasury stock acquired										0	37.5	(1,088.1)	0	0	(1,050.6)	0	(1,050.6)
Treasury stock share repurchased not yet settled										0	(45)	45	0	0	0	0	0
Stock options exercised										0	101.9	22.9	0	0	124.8	0	124.8
PSUs lapsed										0	(0.6)	0.6	0	0	0	0	0
RSAs lapsed										0	(1.7)	1.7	0	0	0	0	0
Stock-based compensation										0	47.9	0	0	0	47.9	0	47.9
Net share settlement from PSUs and RSAs										0	(14.9)	0	0	0	(14.9)	0	(14.9)
Other stock issuances										0	3.6	0.6	0	0	4.2	0	4.2
Excise tax associated with share repurchases										$ 0	0	(7.6)	0	0	(7.6)	0	(7.6)
Balance (in shares) at Dec. 31, 2024										544,003,038
Balance at Dec. 31, 2024										$ 0.1	$ 2,994	$ (10,062.4)	$ 7,153.4	$ 15	$ 100.1	$ 4.9	$ 105
[1]Refer to Note 16. Stockholders' Equity for discussion related to quarterly cash dividends declared per share

Consolidated Statements of Ch_2

Consolidated Statements of Changes in Stockholders' Equity (Parentheticals) - shares	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Share-Based Payment Arrangement, Option [Member]
Shares transferred from treasury stock (in shares)	976,351	1,295,815	1,435,076
Performance Shares [Member]
Shares transferred from treasury stock (in shares)	27,819	27,771	49,803
Restricted Stock [Member]
Shares transferred from treasury stock (in shares)	73,211	106,613	122,340
Treasury stock acquired, shares (in shares)	3,994,244	12,849,921	8,600,963
Shares transferred from treasury stock (in shares)	1,100,152	1,457,514	1,650,460
Shares withheld for tax settlement (in shares)	61,271	81,536	99,977
Other stock issuances (in shares)	22,771	27,315	43,241

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Net income	$ 957.5	$ 614.4	$ 954.3
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization of fixed assets	233.6	206.8	197.1
Amortization of intangible assets	72.3	74.6	142.9
Amortization of debt issuance costs and original issue discount, net of original issue premium	2.6	1.5	1.1
Provision for doubtful accounts	13.3	8.7	7
Net gain on early extinguishment of debt	(3.6)	0	0
Loss (gain) on sale of assets, net	12.1	131.1	(393.9)
Impairment of cost-based investments	1.7	6.5	0
Stock-based compensation expense	47.9	54	56.5
Net gain upon settlement of investment in non-public companies	(100.6)	0	0
Impairment of long-lived assets	7.6	0	377.4
Deferred income taxes	(20.7)	52.7	(261)
Loss on disposal of fixed assets, net	6.5	3.8	1.1
Gain on lease modification	(1.9)	0	0
Acquisition related liability adjustment	(1.1)	(20)	0
Changes in assets and liabilities, net of effects from acquisitions:
Accounts receivable	(116.6)	(83)	(57.7)
Prepaid expenses and other assets	19.4	(56.9)	(8.4)
Operating lease right-of-use assets, net	28.8	26.8	46.6
Income taxes	1.6	(55.8)	25.6
Accounts payable and accrued liabilities	(60.8)	46.5	(21.2)
Deferred revenues	73.1	81.2	64.5
Operating lease liabilities	(35)	(27.1)	(43.9)
Other liabilities	6.3	(5.1)	(29)
Net cash provided by operating activities	1,144	1,060.7	1,059
Cash flows from investing activities:
Acquisitions and purchases of controlling interests, net of cash acquired of $1.8, $8.0, and $17.4, respectively	(23.4)	(83.3)	(448.9)
Proceeds from sale of businesses	6.4	3,066.4	1,073.3
Investments in nonpublic companies	(1)	(2.2)	(46)
Proceeds received upon settlement of investment in non-public companies	113.3	0	0
Escrow funding associated with acquisitions	3.8	(3.8)	(2.3)
Capital expenditures	(223.9)	(230)	(274.7)
Other investing activities, net	0	(0.6)	0
Net cash (used in) provided by investing activities	(124.8)	2,746.5	301.4
Cash flows from financing activities:
(Repayment of) proceeds from short-term debt, net	0	(1,265)	380
Repayments of current portion of long-term debt	0	0	(350)
Proceeds from issuance of long-term debt, inclusive of original issue premium and net of original issue discount	590.2	495.2	0
Proceeds from issuance of short-term debt with original maturities less than three months	0	0	400
Repayment of short-term debt with original maturities greater than three months	0	(125)	0
Payment of debt issuance costs	(5.3)	(6)	0
Payment on early extinguishment of debt	(396.4)	0	0
Repurchases of common stock	(1,005)	(2,762.3)	(1,662.5)
Treasury stock repurchased not yet settled	(45)	(37.5)	0
Payment of excise tax	(25.2)	0	0
Net share settlement of taxes from restricted stock and performance share awards	(14.9)	(15.3)	(20.7)
Proceeds from stock options exercised	124.8	141.9	132.5
Payment of contingent liability related to acquisition	(8.5)	0	0
Dividends paid	(221.3)	(196.8)	(195.2)
Other financing activities, net	(21.9)	(15.7)	(14.3)
Net cash used in financing activities	(1,028.5)	(3,786.5)	(1,330.2)
Effect of exchange rate changes	(2.2)	(10.7)	(17.8)
(Decrease) increase in cash and cash equivalents	(11.5)	10	12.4
Cash and cash equivalents, beginning of period	302.7	292.7	280.3
Cash and cash equivalents, end of period	291.2	302.7	292.7
Supplemental disclosures:
Income taxes paid	287.7	276	324.5
Interest paid	131.6	111.2	134.3
Noncash investing and financing activities:
Deferred tax liability established on date of acquisitions	1.4	8.7	14
Net assets sold as part of the dispositions, net of cash sold	17.3	3,211.8	0
Finance lease additions, net of disposals	28.8	45.6	5.2
Operating lease (terminations) additions	(4.4)	34.3	21.7
Fixed assets included in accounts payable and accrued liabilities	$ 0.2	$ 2.2	$ 0.2

Consolidated Statements of Ca_2

Consolidated Statements of Cash Flows (Parentheticals) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Net of cash acquired from acquisitions	$ 1.8	$ 8	$ 17.4

Insider Trading Arrangements

Insider Trading Arrangements	12 Months Ended
	Dec. 31, 2024 shares
ecd_TradingArrByIndTable
Rule 10b5-1 Arrangement Terminated [Flag]	false
Non-Rule 10b5-1 Arrangement Adopted [Flag]	false
Non-Rule 10b5-1 Arrangement Terminated [Flag]	false
Lee M. Shavel [Member]
ecd_TradingArrByIndTable
Trading Arrangement, Individual Name	Lee M. Shavel
Trading Arrangement, Individual Title	Chief Executive Officer, President and director
Rule 10b5-1 Arrangement Adopted [Flag]	true
Trading Arrangement Adoption Date	November 25, 2024
Trading Arrangement Expiration Date	December 31, 2025
Trading Arrangement, Securities Aggregate Available Amount	8,800
Elizabeth M. Mann [Member]
ecd_TradingArrByIndTable
Trading Arrangement, Individual Name	Elizabeth D. Mann
Trading Arrangement, Individual Title	Chief Financial Officer
Rule 10b5-1 Arrangement Adopted [Flag]	true
Trading Arrangement Adoption Date	December 13, 2024
Trading Arrangement Expiration Date	December 31, 2025
Trading Arrangement, Securities Aggregate Available Amount	3,000

Cybersecurity Risk Management a

Cybersecurity Risk Management and Strategy Disclosure	12 Months Ended
	Dec. 31, 2024
Cybersecurity Risk Management, Strategy, and Governance [Line Items]
Cybersecurity Risk Management Processes for Assessing, Identifying, and Managing Threats [Text Block]	false
Cybersecurity Risk Management Processes Integrated [Flag]	true
Cybersecurity Risk Management Third Party Engaged [Flag]	true
Cybersecurity Risk Third Party Oversight and Identification Processes [Flag]	true
Cybersecurity Risk Board of Directors Oversight [Text Block]	Item 1C. Cybersecurity We remain steadfast in our commitment to safeguarding the confidentiality, integrity, availability, and responsible use of data. Our rigorous approach to cybersecurity is a comprehensive framework comprising cyber risk governance, risk identification and management, risk prevention and protection, monitoring and detection, and response and recovery planning, which is an integral part of our overall enterprise risk management ("Framework"). Cyber risk governance is founded on direction and priorities established by our leadership, supported and overseen by the Board of Directors ("Board"), and deployed through our Framework. The Framework leverages proven standards such as those embedded in the National Institute of Standards and Technology ("NIST") Cybersecurity Framework ("CSF"), which are generally accepted by cybersecurity leaders across industries. The Executive Risk Management Committee ("ERMC"), which includes the top corporate executives, is responsible for providing guidance and enforcing our Framework, including the strategies, policies, procedures, processes, and systems, established by management to identify, assess, measure, monitor, and manage risks. The ERMC also reinforces the corporate risk appetite, determines whether residual risk is acceptable, and confirms materiality of security incidents. The Enterprise Risk Management ("ERM") division of the Company oversees and advises on implementation of the Framework throughout our business units. In doing so, the ERM division aggregates and assesses risk across the enterprise. Within the ERM division is the Chief Information Security Officer third third third Our business units have dedicated liaisons for risk management activities, who participate in a global security council designed to facilitate implementation of the Framework and associated policies. As custodians and/or processors of our stakeholders’ data, our business units also accept certain compliance responsibilities, including but not We have adopted a defense-in-depth strategy with a wide range of measures to secure our technology infrastructure and data as per our Framework. Security measures cover the following key areas as aligned with NIST CSF: risk identification and management, risk prevention and protection, monitoring and detection, and response and recovery planning. Key control functions that comprise the security measures include but are not Our cybersecurity strategy includes the engagement of strategic providers, consultants and independent assessors to inform us of cyber threats and assess the effectiveness of control design and implementation. not not 27001:2013 As discussed more fully under “Item 1A may not no not
Cybersecurity Risk Board Committee or Subcommittee Responsible for Oversight [Text Block]	Cyber risk governance is founded on direction and priorities established by our leadership, supported and overseen by the Board of Directors ("Board"), and deployed through our Framework. The Framework leverages proven standards such as those embedded in the National Institute of Standards and Technology ("NIST") Cybersecurity Framework ("CSF"), which are generally accepted by cybersecurity leaders across industries.
Cybersecurity Risk Process for Informing Board Committee or Subcommittee Responsible for Oversight [Text Block]	The Board oversees our management of cybersecurity, including oversight of appropriate risk mitigation strategies. The Board receives regular reports from executives about our cybersecurity risks, management review processes, overall health and readiness to respond to an incident. The Risk Committee of the Board was established in February 2024 to oversee risk assessment and risk management of the Company in coordination with other relevant Board Committees as appropriate, including but not limited to the policies, procedures and strategic approach to cyber, technology and information security risks. The Risk Committee of the Board also reports material cybersecurity risks to our full Board.
Cybersecurity Risk Role of Management [Text Block]	The Executive Risk Management Committee ("ERMC"), which includes the top corporate executives, is responsible for providing guidance and enforcing our Framework, including the strategies, policies, procedures, processes, and systems, established by management to identify, assess, measure, monitor, and manage risks. The ERMC also reinforces the corporate risk appetite, determines whether residual risk is acceptable, and confirms materiality of security incidents.
Cybersecurity Risk Management Positions or Committees Responsible [Flag]	true
Cybersecurity Risk Management Positions or Committees Responsible Report to Board [Flag]	true

Note 1 - Organization

Note 1 - Organization	12 Months Ended
	Dec. 31, 2024
Notes to Financial Statements
Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]	1. Verisk Analytics, Inc. (the "Company") is a strategic data analytics and technology partner to the global insurance industry. We empower clients to strengthen operating efficiency, improve underwriting and claims outcomes, combat fraud and make informed decisions about global risks, including climate change, extreme events, sustainability, and political issues. Through advanced data analytics, software, scientific research, and deep industry knowledge, we help build global resilience for individuals, communities, and businesses. We trade under the ticker symbol "VRSK" on the Nasdaq Global Select Market.

Note 2 - Basis of Presentation

Note 2 - Basis of Presentation and Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2024
Notes to Financial Statements
Significant Accounting Policies [Text Block]	2. Our accompanying consolidated financial statements have been prepared on the basis of accounting principles generally accepted in the United States of America (“U.S. GAAP”). The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting periods. Significant estimates include acquisition purchase price allocations, the fair value of goodwill, the realization of deferred tax assets and liabilities, acquisition-related liabilities, fair value of stock-based compensation for equity awards granted, and assets and liabilities for pension and postretirement benefits. Actual results may On February 1, 2023, 205 20, Discontinued Operations 205 20” 205 20. Significant accounting policies include the following: (a) Intercompany Accounts and Transactions The consolidated financial statements include all of our accounts. All intercompany accounts and transactions have been eliminated. (b) Revenue Recognition The following describes our primary types of revenues and the applicable revenue recognition policies. We recognize revenues through recurring and non-recurring long-term agreements (generally one five Hosted Subscriptions We offer hosted subscriptions, where customers access content only through our online portal (the "Hosted Subscription"). We grant a license to our customer to enter our online portal. The license is a contractual mechanism that allows our customer to access our online portal for a defined period of time. As the license alone does not no not 606, Revenue from Contracts with Customers 606" Advisory/Consulting Services We provide certain discrete project based advisory/consulting services, which are recognized over time by measuring the progress toward complete satisfaction of the performance obligation, based on the input method of consulting hours worked; this aligns with the results achieved and value transferred to our customer. The hours consumed are most reflective of the measure of progress towards satisfying the performance obligation, as the resources hours worked directly tie to the progress of the services to be provided. In general, they are billed over the course of the project. Transactional Solutions Certain solutions are also paid for by customers on a transactional basis. We recognize these revenues as the solutions are delivered or services performed at a point in time. In general, our customers are billed monthly at the end of each month. (c) Deferred Revenues We invoice our customers in annual, quarterly, monthly, or milestone installments. Amounts billed and/or collected in advance of services being provided are recorded as “Deferred revenues” and “Other noncurrent liabilities” in our accompanying consolidated balance sheets and are recognized as the services are performed, control is transferred to customers, and the applicable revenue recognition criteria is met. (d) Accounts Receivable and Allowance for Doubtful Accounts Accounts receivable are generally recorded at the invoiced amount. Unbilled receivables are short-term in nature and expected to be billed within one (e) Deferred Commissions We recognize an asset for the incremental costs of obtaining a contract with a customer if we expect the benefit of those costs to be longer than one five December 31, 2024 (f) Fixed Assets and Finite-lived Intangible Assets Fixed assets and finite-lived intangibles are stated at cost less accumulated depreciation and amortization, which is computed on a straight-line basis over their estimated useful lives. Leasehold improvements are amortized over the shorter of the useful life of the asset or the lease term. Our internal software development costs primarily relate to internal-use software. Such costs are capitalized in the application development stage in accordance with ASC 350 40, Internal-use Software 350 40" three In accordance with ASC 360, Property, Plant & Equipment may not first (g) Leases We have operating and finance leases for corporate offices, data centers, and certain equipment that are accounted for under ASC 842, Leases 2033 We determine if an arrangement is a lease at inception. We consider any contract where there is an identified asset and that it has the right to control the use of such asset in determining whether the contract contains a lease. A right-of-use ("ROU") asset represents our right to use an underlying asset for the lease term and the lease liabilities represent our obligation to make lease payments arising from the lease. Operating lease ROU assets and lease liabilities are recognized at the commencement date based on the present value of lease payments over the lease term. As our operating leases do not zero (h) Fair Value of Financial and Non-financial Instruments We follow the provisions of ASC 820 10, Fair Value Measurements 820 10” 820 10 820 10 (i) Foreign Currency We have determined local currencies are the functional currencies of our foreign operations. The assets and liabilities of foreign subsidiaries are translated at the period-end rate of exchange and statement of operations items are translated at the average rates prevailing during the year. The resulting translation adjustment is recorded as a component of “Accumulated other comprehensive losses” in our accompanying consolidated statements of changes in stockholders’ equity. (j) Stock-Based Compensation We follow ASC 718, Stock Compensation 718” 718, Our nonqualified stock options have an exercise price equal to the closing price of our common stock on the grant date, with a ten no zero The fair value of our restricted stock is determined using the closing price of our common stock on the grant date. Our restricted stock is not four Performance share units (“PSU”) vest at the end of a three one third zero 500 We estimate expected forfeitures of equity awards at the date of grant and recognize compensation expense only for those awards expected to vest. The forfeiture assumption is ultimately adjusted to the actual forfeiture rate. Estimated forfeiture is ultimately adjusted to actual forfeiture. Changes in the forfeiture assumptions may Excess tax benefit from exercised stock options, lapsing of restricted stock and PSUs is recorded as an income tax benefit in our accompanying consolidated statements of operations. This tax benefit is calculated as the excess of the intrinsic value of options exercised and of the market value of restricted stock lapsed over the compensation recognized for financial reporting purposes. (k) Research and Development Costs Research and development costs, which are primarily related to personnel and related overhead costs incurred in developing new services for customers, are expensed as incurred. Such costs were $35.3 million, $36.8 million, and $43.1 million for the years ended December 31, 2024, 2023, 2022 (l) Advertising Costs Advertising costs, which are primarily associate d with promoting our brand, names and solutions provided, are expensed as incurred. Such costs were $9.1 million, $11.9 million, and $14.7 million for the years ended December 31, 2024, 2023, 2022 (m) Income Taxes We account for income taxes under the asset and liability method under ASC 740, Income Taxes 740” Deferred tax assets are recorded to the extent these assets are more likely than not not not We follow ASC 740 10, Income Taxes 740 10” , 740 10 may not not 740 10. We recognize interest and penalties related to unrecognized tax benefits within the income tax expense line in our accompanying consolidated statements of operations. Accrued interest and penalties are included within “Other liabilities” on our accompanying consolidated balance sheets. (n) Earnings Per Share Basic and diluted earnings per share (“EPS”) are determined in accordance with ASC 260, Earnings per Share (o) Pension and Postretirement Benefits We account for our pension and postretirement benefits under ASC 715, Compensation — Retirement Benefits 715” 715 not December 31. (p) Product Warranty Obligations We provide warranty coverage for certain of our solutions. We recognize a product warranty obligation when claims are probable and can be reasonably estimated. As of December 31, 2024 2023 not (q) Loss Contingencies We accrue for costs relating to litigation, claims, and other contingent matters when such liabilities become probable and reasonably estimable. Such estimates are based on management’s judgment. Actual amounts paid may In the ordinary course of business, we enter into numerous agreements that contain standard indemnities whereby we indemnify another party for breaches of confidentiality, infringement of intellectual property or gross negligence. Such indemnifications are primarily granted under licensing of computer software. Most agreements contain provisions to limit the maximum potential amount of future payments that we could be required to make under these indemnifications; however, we are not not (r) Goodwill and Indefinite-Lived Intangible Assets Goodwill represents the excess of acquisition costs over the fair value of tangible net assets and identifiable intangible assets of our businesses acquired. Goodwill and intangible assets deemed to have indefinite lives are not June 30, may not may first not not not (s) Recent Accounting Pronouncements Accounting Standard Description Effective Date Effect on Consolidated Financial Statements or Other Significant Matters Segment Reporting (Topic 280 November 2023, No. 2023 07, No. 2023 07" This update changes the reportable segment disclosure requirements requiring enhanced disclosures about significant segment expenses. Public entities are required to disclose significant segment expenses that are regularly provided to the chief operating decision maker and to disclose how reported measures of segment profit or loss are used in assessing segment performance and allocating resources. ASU No. 2023 07 December 15, 2023, December 15, 2024. We adopted this standard within our December 31, 2024 10 ASU 2024 03, 220 Disaggregation of Income Statement Expenses requires disclosures about specific types of expenses included in the expense captions presented on the face of the income statement, as well disclosures about selling expenses. This standard is effective for our annual periods beginning after December 15, 2026 December 15, 2027, We are currently evaluating the impact of adopting this ASU on our income statement disaggregation disclosures. Income Taxes (Topic 740 December 2023, No. 2023 09, No. 2023 09 The amendments within ASU No. 2023 09 The ASU’s amendments are effective for public business entities for fiscal years beginning after December 15, 2024. The adoption of this guidance is not

Note 3 - Cash and Cash Equivale

Note 3 - Cash and Cash Equivalents	12 Months Ended
	Dec. 31, 2024
Notes to Financial Statements
Cash and Cash Equivalents Disclosure [Text Block]	3. Cash and cash equivalents consist of cash in banks, commercial paper, money-market funds, and other liquid instruments with original maturities of 90

Note 4 - Accounts Receivable

Note 4 - Accounts Receivable	12 Months Ended
	Dec. 31, 2024
Notes to Financial Statements
Accounts and Nontrade Receivable [Text Block]	4. Accounts receivable, net consisted of the following at December 31: 2024 2023 Billed receivables $ 421.4 $ 317.1 Unbilled receivables 35.5 32.2 Total receivables 456.9 349.3 Less allowance for doubtful accounts (22.5 ) (15.1 ) Accounts receivable, net $ 434.4 $ 334.2

Note 5 - Concentration of Credi

Note 5 - Concentration of Credit Risk	12 Months Ended
	Dec. 31, 2024
Notes to Financial Statements
Concentration Risk Disclosure [Text Block]	5. Financial instruments that potentiall y expose us to credit risk consist primarily of cash and cash equivalents as well as accounts receivable, net, which are generally not December 31, 2024 2023 , a vast majority of our domestic cash and cash equivalents is with JPMorgan Chase N.A., and TD Bank, N.A. The total domestic cash balances are insured by the Federal Deposit Insurance Corporation (“FDIC”) to a maximum amount of $250.0 thousand per bank as of December 31, 2024 2023 . As of December 31, 2024 2023 , we had cash balances on deposit with five and seven banks that exceeded the balance insured by the FDIC limit by approximat el y$129.0 million and $171.8 million, respectively. As of December 31, 2024 2023 , we also had cash on deposit with foreign banks of approximately $161.0 million and $129.2 million, respectively. We consider the concentration of credit risk associated with our accounts receivable to be commercially reasonable and believe that such concentration does not 2024 , 45% for 2023 , and 41% for 2022 , with no individual customer accounting for more than approximately 3% of revenues for the years ended December 31, 2024 , 2023 , and 2022 . No individual customer comprised more than approximately 4% and 5% of accounts receivable as of December 31, 2024 2023 , respectively.

Note 6 - Revenues

Note 6 - Revenues	12 Months Ended
	Dec. 31, 2024
Notes to Financial Statements
Revenue from Contract with Customer [Text Block]	6. Disaggregated revenues by typ e of service and by country are provided below for the years ended December 31, 2024, 2023, 2022 . No 10.0% December 31, 2024 2023 2022 2024 2023 2022 Insurance: Underwriting $ 2,024.3 $ 1,892.7 $ 1,734.5 Claims 857.4 788.7 702.5 Total Insurance 2,881.7 2,681.4 2,437.0 Specialized Markets — — 22.4 Financial Services — — 37.6 Total revenues $ 2,881.7 $ 2,681.4 $ 2,497.0 2024 2023 2022 Revenues: United States $ 2,386.1 $ 2,238.3 $ 2,120.1 United Kingdom 214.4 190.1 169.5 Other countries 281.2 253.0 207.4 Total revenues $ 2,881.7 $ 2,681.4 $ 2,497.0 Contract assets are defined as an entity's right to consideration in exchange for goods or services that the entity has transferred to a customer when that right is conditioned on something other than the passage of time. As of December 31, 2024 2023 d no contract assets. Contract liabilities are defined as an entity's obligation to transfer goods or services to a customer for which the entity has received consideration (or an amount of consideration is due) from the customer. As of December 31, 2024 2023 , we had contract liabilities that primarily related to unsatisfied performance obligations to provide customers with the right to use and update the online content over the remaining contract term of $451.1 million and $375.1 million, respectively. Contract liabilities, which are current and noncurrent, are included in "Deferred revenues" and "Other noncurrent liabilities" in our consolidated balance sheets, respectively, as of December 31, 2024 2023 . The following is a summary of the change in contract liabilities from December 31, 2023 December 31, 2024 Contract Liabilities at December 31, 2022 $ 321.7 Revenue (2,681.4 ) Additions to contract liabilities 2,737.8 Foreign currency translation adjustment (3.0 ) Contract Liabilities at December 31, 2023 375.1 Revenue (2,881.7 ) Additions to contract liabilities 2,956.9 Foreign currency translation adjustment 0.8 Contract Liabilities at December 31, 2024 $ 451.1 Our most significant remaining performance obligations relate to providing customers with the right to use and update the online content over the remaining contract term. Our disclosure of the timing for satisfying the performance obligation is based on the requirements of contracts with customers. However, from time to time, these contracts may one December 31, 2024 2023 , respectively. We recognize an asset for incremental costs of obtaining a contract with a customer if we expect the benefits of those costs to be longer than one December 31, 2024 2023 , we had deferred commissions of $78.5 million and $76.4 million, respectively, which have been included in "

Note 7 - Fair Value Measurement

Note 7 - Fair Value Measurements	12 Months Ended
	Dec. 31, 2024
Notes to Financial Statements
Fair Value Disclosures [Text Block]	7. Certain assets and liabilities are reported at fair value in our accompanying consolidated balance sheets. Such assets and liabilities include amounts for both financial and non-financial instruments. To increase consistency and comparability of assets and liabilities recorded at fair value, ASC 820 10 three 820 10 820 10, Level 1 Level 2 Level 3 not The fair value of cash and cash equivalents, accounts receivable, accounts payable and accrued liabilities, and short-term debt approximate their carrying amounts because of the short-term nature of these instrume nts. Our investments in registered investment companies, which are Level 1 December 31, 2024 2023 . Our investments in registered investment companies have been included in "Other current assets" in our consolidated balance sheets as of December 31, 2024 2023 . We elected not December 31, 2024 2023 2024 2023 Fair Value Carrying Estimated Carrying Estimated Hierarchy Value Fair Value Value Fair Value Financial instrument not carried at fair value: Senior Notes (Note 15) Level 2 $ 3,021.0 $ 2,866.5 $ 2,833.7 $ 2,735.3 As of December 31, 2024 2023 , we had securities without readily determinable market values of $195.3 million and $200.9 million, respectively, which were accounted for at cost. We do not not December 31, 2024 2023 , we also had investments in private companies of $27.0 milli on and $30.5 million, respectively, accounted for in accordance with ASC 323 10 25, The Equity Method of Accounting for Investments in Common Stock ("ASC 323 10 25" December 31, 2024 2023 , there was no provision for credit losses related to these investments. During the year ended December 31, 2024,

Note 8 - Leases

Note 8 - Leases	12 Months Ended
	Dec. 31, 2024
Notes to Financial Statements
Lessee, Operating and Finance Leases [Text Block]	8. We have operating and finance leases for corporate offices, data centers, and certain equipment that are accounted for under ASC 842. 2033 The following table presents the consolidated lease cost and cash paid for amounts included in the measurement of lease liabilities for finance and operating leases for the years ended December 31, 2024 2023: 2024 2023 Lease cost: Operating lease cost (1) $ 32.7 $ 33.9 Sublease income (4.0 ) (1.7 ) Finance lease cost Depreciation of finance lease assets (2) 19.4 14.4 Interest on finance lease liabilities (3) 2.3 1.0 Total lease cost $ 50.4 $ 47.6 Other information: Cash paid for amounts included in the measurement of lease liabilities Operating cash outflows from operating leases $ (34.5 ) $ (34.9 ) Operating cash outflows from finance leases $ (2.3 ) $ (1.0 ) Financing cash outflows from finance leases $ (21.9 ) $ (15.7 ) _______________ ( 1 ( 2 Included in "Depreciation and amortization of fixed assets" in our accompanying consolidated statements of operations ( 3 The following table presents weighted-average remaining lease terms and weighted-average discount rates for the consolidated finance and operating leases for the years ended December 31, 2024 2023: 2024 2023 Weighted-average remaining lease term - operating leases (in years) 7.0 8.2 Weighted-average remaining lease term - finance leases (in years) 3.0 3.1 Weighted-average discount rate - operating leases 4.2 % 4.0 % Weighted-average discount rate - finance leases 4.2 % 4.2 % Our ROU assets and lease liabilities for finance leases we re $47.7 million and $41.4 million, respectively, as of December 31, 2024 . Our ROU assets and lease liabilities for finance leases were $41.2 million and $34.5 million, respectively, as of December 31, 2023 . Our ROU assets for finance leases were included in "Fixed assets, net" in our a Short-term debt and current portion of long-term debt Long-term debt Note 15 On August 16, 2024, 842. Maturities of the continuing lease liabilities for the years through 2030 Years Ending Operating Leases Finance Leases 2025 $ 32.8 $ 22.1 2026 31.1 10.7 2027 30.5 9.0 2028 29.3 4.8 2029 28.0 - 2030 and thereafter 61.5 - Total lease payments 213.2 46.6 Less: Amount representing interest (28.5 ) (5.2 ) Present value of total lease payments $ 184.7 $ 41.4

Note 9 - Fixed Assets

Note 9 - Fixed Assets	12 Months Ended
	Dec. 31, 2024
Notes to Financial Statements
Property, Plant and Equipment Disclosure [Text Block]	9. The following is a summary of fixed assets: Useful Life (in years) Cost Accumulated Depreciation and Amortization Net December 31, 2024 Furniture and office equipment 3 - 10 $ 164.2 $ (144.8 ) $ 19.4 Leasehold improvements Lease term 101.4 (62.3 ) 39.1 Purchased software 3 58.2 (55.6 ) 2.6 Software development costs 3 1,334.8 (837.4 ) 497.4 Leased equipment 3 - 4 125.0 (77.6 ) 47.4 Total fixed assets $ 1,783.6 $ (1,177.7 ) $ 605.9 December 31, 2023 Furniture and office equipment 3 - 10 $ 178.5 $ (156.7 ) $ 21.8 Leasehold improvements Lease term 116.5 (63.0 ) 53.5 Purchased software 3 59.9 (55.2 ) 4.7 Software development costs 3 1,136.6 (653.0 ) 483.6 Leased equipment 3 - 4 105.1 (63.8 ) 41.3 Total fixed assets $ 1,596.6 $ (991.7 ) $ 604.9 D epreciation and amortization of fixed assets for the years ended December 31, 2024, 2023, 2022 were $233.6 million, $206.8 million, and $164.2 million, of which $193.5 million, $165.5 million, and $116.6 million related to amortization of internal-use software development costs, respectively. Amortization expense related to development of software for sale was $1.2 million, $4.8 million, and $7.6 million for the years ended December 31, 2024, 2023, 2022 , respectively. We had unamortized software development costs that had been capitalized in accordance with ASC 350 40 December 31, 2024 2023 , respectively. We had unamortized software development costs that had been capitalized for of $0.0 million and $1.2 million as of December 31, 2024 2023 , respectively. Leased assets include amounts held under finance leases for automobiles, computer software, and computer equipment. Impairments to long-lived assets for the twelve December 31, 2024 2023 August 2024, two

Note 10 - Acquisitions

Note 10 - Acquisitions	12 Months Ended
	Dec. 31, 2024
Notes to Financial Statements
Business Combination Disclosure [Text Block]	10. 2024 Acquisitions On January 8, 2024, rise Solutions GmbH ("Rocket") for a net cash purchase price of $10.1 million, of which $2.2 million represents a deferred payment and $0.3 million represents a holdback payment. The majority of the purchase price was allocated to goodwill as we did not 2022, The preliminary allocations of the purchase price for the 2024 may not one not not For the year ended December 31, 2024 , we incurred transaction costs of $0.3 million. The tra Our 2024 not December 31, 2024, 2023, 2022 , not 2023 On April 20, 2023, On February 1, 2023, The "Other" column includes other immaterial acquisitions that have occurred during the period. The preliminary purchase price allocation of the 2023 Krug Other Total Cash and cash equivalents $ 7.0 $ 1.0 $ 8.0 Accounts receivable 1.8 0.8 2.6 Other current assets 3.8 0.1 3.9 Fixed assets 0.2 0.1 0.3 Operating lease right-of-use assets, net — 0.2 0.2 Intangible assets 15.1 18.4 33.5 Goodwill 33.1 22.8 55.9 Total assets acquired 61.0 43.4 104.4 Accounts payable and accrued liabilities 5.8 2.1 7.9 Operating lease liabilities — 0.1 0.1 Deferred income tax, net 4.8 3.9 8.7 Other noncurrent liabilities 0.1 1.4 1.5 Total liabilities assumed 10.7 7.5 18.2 Net assets acquired 50.3 35.9 86.2 Less: cash acquired 7.0 1.0 8.0 Net cash purchase price $ 43.3 $ 34.9 $ 78.2 The final amounts assigned to intangible assets by type for our 2023 Weighted Average Useful Life (in years) Total Technology-based 5 $ 9.9 Marketing-related 2 0.5 Customer-related 13 23.1 Total intangible assets $ 33.5 For the year ende d December 31, 2024, 2023 805, Business Combinations 805" not December 31, 2024 2023. The $55.9 million in goodwill associated with our acquisitions is not The preliminary amounts assigned to intangible assets by type for these acquisitions were based upon our valuation model and historical experiences with entities with similar business characteristics. December 31, 2023, Our 2023 not December 31, 2023 2022, not 2022 On March 1, 2022, On February 11, 2022, The final purchase price allocations, inclusive of closing adjustments, of our 2022 Opta Infutor Others Total Cash and cash equivalents $ 0.4 $ 17.0 $ - $ 17.4 Accounts receivable 5.2 10.7 - 15.9 Other current assets 1.3 3.8 0.1 5.2 Fixed assets 1.5 0.9 0.3 2.7 Operating lease right-of-use assets, net 1.1 2.3 - 3.4 Intangible assets 87.0 83.4 2.3 172.7 Goodwill 141.1 140.3 3.0 284.4 Other assets - 0.1 - 0.1 Total assets acquired 237.6 258.5 5.7 501.8 Current liabilities 4.9 14.4 0.1 19.4 Deferred revenues 0.2 3.1 0.1 3.4 Operating lease liabilities 1.1 3.3 - 4.4 Deferred income tax, net 13.5 - 0.5 14.0 Other liabilities - - 0.2 0.2 Total liabilities assumed 19.7 20.8 0.9 41.4 Net assets acquired 217.9 237.7 4.8 460.4 Cash acquired 0.4 17.0 — 17.4 Net cash purchase price $ 217.5 $ 220.7 $ 4.8 $ 443.0 The final amounts assigned to intangible assets by type for our 2022 Weighted Average Useful Life (in years) Total Technology-based 6 $ 48.5 Marketing-related 4 2.0 Customer-related 13 122.2 Total intangible assets $ 172.7 For the year ende d December 31, 2023, 2022 805, Business Combinations 805" not December 31, 2023 2022. Of the $284.4 million in goodwill associated with our acquisitions, $144.5 million is not December 31, 2022, Our 2022 not December 31, 2022, not Acquisition Escrows and Related Liabilities Pursuant to the related acquisition agreements, we have funded various escrow accounts to satisfy pre-acquisition indemnity and tax claims arising subsequent to the acquisition dates, as well as a portion of the contingent payment. During the years ended December 31, 2024 2023 , we re leased $3.8 million and $0.0 million of indemnity escrows related to various acquisitions. At December 31, 2024 2023 , the current portion of the escrows amounted to $0.0 million and $3.9 million. There were no The current and noncurrent portions of the escrows have been included in "Other current assets" and "Other noncurrent assets" in our accompanying consolidated balance sheets, respectively. As of December 31, 2024 , the acquisition of Krug Sachverständigen GmbH ('Krug'), Mavera Holding AB ('Mavera'), and Morning Data Limited ('Morning Data') included acquisition-related contingent payments, for which the sellers of these acquisitions could receive additional payments by achieving the specific predetermined revenue, EBITDA, and/or EBITDA margin earn-out targets for exceptional performance. We believe that the liabilities recorded as of December 31, 2024 2023 reflect the best estimate of acquisition-related contingent payments. The associated current portion of contingent payments was $0.0 million and $10.0 million as of December 31, 2024 2023 , respectively . The associated noncurrent portion of contingent payments was $2.2 million and $2.1 million a s of December 31, 2024 2023 , respectively.

Note 11 - Dispositions and Disc

Note 11 - Dispositions and Discontinued Operations	12 Months Ended
	Dec. 31, 2024
Notes to Financial Statements
Disposal Groups, Including Discontinued Operations, Disclosure [Text Block]	11. Dispositions In December 2024, Other operating (loss) income December 31, 2024. Discontinued Operations On February 1, 2023, The Energy business, which was part of our Energy and Specialized Markets segment, was classified as discontinued operations per ASC 205 20 December 31, 2022. February 1, 2023, second fourth 2023, The following table presents the financial results from discontinued operations, net of income taxes in our consolidated statement of income for the periods indicated: For the Year Ended December 31, 2024 2023 2022 Revenues $ - $ 46.8 $ 537.3 Operating expenses: Cost of revenues (exclusive of items shown separately below) - 18.2 207.4 Selling, general and administrative - 33.2 117.2 Depreciation and amortization of fixed assets - - 32.9 Amortization of intangible assets - - 68.5 Impairment loss - - 303.7 Other operating loss - 131.1 33.9 Total operating expenses - 182.5 763.6 Operating (loss) income - (135.7 ) (226.3 ) Other (expense) income: Investment (loss) income and others, net - (5.7 ) 7.0 Total other (expense) income, net - (5.7 ) 7.0 Loss from discontinued operations before income taxes - (141.4 ) (219.3 ) Income tax benefit (expense) 6.8 (12.6 ) 131.5 Income (loss) from discontinued operations, net of income taxes $ 6.8 $ (154.0 ) $ (87.8 ) The consolidated statements of cash flows have not For the Year Ended December 31, 2024 2023 2022 Significant non-cash operating activities: Depreciation and amortization of fixed assets $ - $ - $ 32.9 Amortization of intangible assets - - 68.5 Impairment loss - - 303.7 Operating lease right-of-use assets, net - 0.1 7.6 Investing activities: Capital expenditures - (6.5 ) (72.6 ) Supplemental disclosures: Fixed assets included in accounts payable and accrued liabilities - - 3.0

Note 12 - Goodwill and Intangib

Note 12 - Goodwill and Intangible Assets	12 Months Ended
	Dec. 31, 2024
Notes to Financial Statements
Goodwill and Intangible Assets Disclosure [Text Block]	12. The following is a summary of the change in goodwill from January 1, 2023 December 31, 2024 Insurance Goodwill at January 1, 2023 $ 1,676.0 Acquisitions 55.9 Purchase accounting reclassifications (0.1 ) Foreign currency translation adjustment 29.0 Goodwill at December 31, 2023 1,760.8 Acquisitions 10.6 Dispositions (15.8 ) Purchase accounting reclassifications 0.3 Foreign currency translation adjustment (29.3 ) Goodwill at December 31, 2024 $ 1,726.6 Goodwill and intangible assets with indefinite lives are subject to impairment testing annually as of June 30, may not may first not not not June 30, 2024, not not not not Our intangible assets and related accumulated amortization consisted of the following: Weighted Average Useful Life Accumulated (in years) Cost Amortization Net December 31, 2024 Technology-based 8 $ 364.9 $ (285.3 ) $ 79.6 Marketing-related 6 37.8 (35.5 ) 2.3 Contract-based 6 5.0 (5.0 ) - Customer-related 13 529.1 (224.0 ) 305.1 Database-based 8 15.1 (9.7 ) 5.4 Total intangible assets $ 951.9 $ (559.5 ) $ 392.4 December 31, 2023 Technology-based 8 $ 370.2 $ (261.2 ) $ 109.0 Marketing-related 6 42.7 (38.7 ) 4.0 Contract-based 6 5.0 (5.0 ) — Customer-related 13 542.1 (190.7 ) 351.4 Database-based 8 15.2 (7.9 ) 7.3 Total intangible assets $ 975.2 $ (503.5 ) $ 471.7 Amortization expense related to intangible assets for the years ended December 31, 2024, 2023, 2022 s $72.3 million 2030 Years Ending Amount 2025 $ 62.0 2026 60.1 2027 52.1 2028 45.1 2029 40.3 2030 and thereafter 132.8 Total $ 392.4

Note 13 - Income Taxes

Note 13 - Income Taxes	12 Months Ended
	Dec. 31, 2024
Notes to Financial Statements
Income Tax Disclosure [Text Block]	13. Domestic and foreign income before income taxes was as follows: 2024 2023 2022 U.S. $ 1,201.6 $ 1,021.9 $ 1,277.1 Foreign 27.0 5.3 (14.7 ) Total income before income taxes $ 1,228.6 $ 1,027.2 $ 1,262.4 The components of the provision for income taxes for the years ended December 31 2024 2023 2022 Current: Federal $ 223.0 $ 226.8 $ 247.8 State and local 67.5 52.0 64.7 Foreign 7.9 9.0 1.1 Total current provision for income taxes 298.4 287.8 313.6 Deferred: Federal (17.2 ) (23.4 ) (43.3 ) State and local (1.4 ) (3.4 ) (11.2 ) Foreign (1.9 ) (2.2 ) (38.8 ) Total deferred provision for income taxes (20.5 ) (29.0 ) (93.3 ) Provision for income taxes $ 277.9 $ 258.8 $ 220.3 The reconciliation between our effective tax rate and the statutory tax rate is as follows for the years ended December 31: 2024 2023 2022 Federal statutory rate 21.0 % 21.0 % 21.0 % State and local taxes, net of federal tax benefit 4.3 3.7 3.4 Impact of dispositions (0.2 ) - (3.0 ) UK valuation allowance release - - (2.4 ) Global Intangible Low-taxed Income 0.2 1.3 0.4 Stock-based compensation (1.9 ) (1.8 ) (1.7 ) Other (0.8 ) 1.0 (0.2 ) Effective tax rate 22.6 % 25.2 % 17.5 % The decrease in the effective tax rate in 2024 2023 The tax effects of significant items comprising our deferred tax assets and liabilities as of December 31 2024 2023 Deferred tax assets: Employee wages and other benefits $ 47.2 $ 49.9 Lease liabilities 46.3 55.4 Net operating loss carryover 7.6 9.4 Interest expense 30.8 31.0 Other 16.1 17.1 Total 148.0 162.8 Less valuation allowance (4.2 ) (5.6 ) Deferred tax assets 143.8 157.2 Deferred tax liabilities: Right of use assets (40.9 ) (48.3 ) Fixed assets and intangible assets (168.6 ) (194.1 ) Commissions (19.3 ) (18.2 ) Pensions (59.2 ) (57.0 ) Other (13.1 ) (18.9 ) Deferred tax liabilities (301.1 ) (336.5 ) Deferred tax liabilities, net $ (157.3 ) $ (179.3 ) The net deferred tax liabilitie s of $157.3 million consist prim Our net operating loss carryforwards expire as follows: Years Ending Amount 2025 - 2032 $ 16.1 2033 - 2037 4.6 2038 - 2044 32.3 Total $ 53.0 A valuation allowance has been established based on our evaluation of the likelihood of utilizing these benefits before they expire. Other than these items, we have determined, based on our historical operating performance, that our taxable income will more likely than not As of December 31, 2024 not not not We follow ASC 740 10 not not No may not not 2024 2023 2022 Unrecognized tax benefit as of January 1 $ 2.0 $ 3.2 $ 3.4 Gross increase in tax positions in prior period 2.3 0.8 1.0 Gross decrease in tax positions in prior period - - - Settlements - - (0.6 ) Lapse of statute of limitations (0.2 ) (2.0 ) (0.6 ) Unrecognized tax benefit as of December 31 $ 4.1 $ 2.0 $ 3.2 All unrecognized tax benefits as of December 31, 2024 2023 2022 would have a favorable impact on our effective tax rate if recognized in any future periods. The total gross amount of accrued interest and penalties for the years ended December 31, 2024 , 2023 , and 2022 was $0.7 million, $0.2 million, and $0.4 million, respectively. Our practice is to recognize interest and penalties associated with income taxes as a component of “Provision for income taxes” in our accompanying consolidated statements of operations. We do not may 2024 We are subject to tax in the U.S., various state, and foreign jurisdictions, and are routinely under audit by various tax authorities. With few exceptions, we are no 2020 not

Note 14 - Composition of Certai

Note 14 - Composition of Certain Financial Statement Caption	12 Months Ended
	Dec. 31, 2024
Notes to Financial Statements
Accounts Payable and Accrued Liabilities Disclosure [Text Block]	14. The following table presents the components of “Accounts payable and accrued liabilities” as of December 31: 2024 2023 Accounts payable and accrued liabilities: Accrued salaries, benefits and other related costs $ 143.6 $ 149.4 Escrow liabilities - 3.9 Accrued interest 20.7 19.1 Trade accounts payable and other accrued expenses 85.5 158.4 Acquisition-related liabilities - 10.0 Total accounts payable and accrued liabilities $ 249.8 $ 340.8 The following table presents the components of "Other noncurrent assets" as of December 31: 2024 2023 Other noncurrent assets: Pension benefits $ 125.3 $ 121.4 Other assets - prepaid expenses 87.6 73.2 Investments in nonpublic companies 222.2 231.4 State income tax receivable - 67.7 Deposits and other 2.8 2.4 Total other noncurrent assets $ 437.9 $ 496.1

Note 15 - Debt

Note 15 - Debt	12 Months Ended
	Dec. 31, 2024
Notes to Financial Statements
Debt Disclosure [Text Block]	15. The following table presents short-term and long-term debt by issuance as of December 31: Issuance Maturity Date Date 2024 2023 Short-term debt and current portion of long-term debt: Credit Facilities: Syndicated revolving credit facility Various Various $ - $ - Senior Notes: 4.000 0.3 5/15/2015 6/15/2025 $ 499.7 $ - Finance lease liabilities (1) Various Various 14.5 14.5 Short-term debt and current portion of long-term debt 514.2 14.5 Long-term debt: Senior notes: 4.000 1.8 5/15/2015 6/15/2025 - 898.2 4.125 6.3 7.8 3/6/2019 3/15/2029 606.3 607.8 5.500 3.7 3.8 5/15/2015 6/15/2045 346.3 346.2 3.625 9.2 9.6 5/13/2020 5/15/2050 490.8 490.4 5.750 7.9 8.9 3/3/2023 4/1/2033 492.1 491.1 5.250 14.2 6/5/2024 6/5/2034 585.8 - Finance lease liabilities (1) Various Various 26.9 20.0 Syndicated revolving credit facility debt issuance costs Various Various (1.3 ) (1.5 ) Long-term debt 2,546.9 2,852.2 Total debt $ 3,061.1 $ 2,866.7 _______________ ( 1 Note 8 Accrued interest associated with our outstand ing debt obligations was $20.7 million and $19.1 million as of December 31, 2024 2023 , respectively, and included in “Accounts payable and accrued liabilities” within our accompanying consolidated balance sheets. Interest expense associated with our finance lease and outstanding debt obligations, including amortization of debt issuance costs and original discounts, wa s $140.3 m illion, $ 131.3 million, and $135.5 million for the years ended December 31, 2024, 2023, 2022 , respectively. Senior Notes As of December 31, 2024 2023 , we had senior notes with an aggregate principal amount of $3,050.0 million and $2,850.0 million outstanding, respectively, and were in compliance with our financial and other debt covenants. On June 5, 2024, 2034 "2034 2034 June 5, 2034 June 5th December 5th December 5th, 2024. 2034 2034 2034 2025 " 2025 2034 On June 7, 2024, 2025 $1,000.0 2025 2034 Credit Facilities We have a syndicated revolving credit facility ("Syndicated Revolving Credit Facility") with a borrowing capacity of $1,000 million with Bank of America N.A., HSBC Bank USA, N.A., JP Morgan Chase Bank, N.A., Wells Fargo Bank, National Association, Citibank, N.A., Morgan Stanley Bank, N.A., TD Bank, N.A., Goldman Sachs Bank USA, and the Northern Trust Company. The Syndicated Revolving Credit Facility may December 31, 2024, December 31, 2024 2023, Debt Maturities The following table reflects our debt maturities: Years Ending Amount 2025 $ 520.4 2026 9.3 2027 7.6 2028 4.0 2029 600.0 2030 and thereafter 1,950.0 Total $ 3,091.3

Note 16 - Stockholders' Equity

Note 16 - Stockholders' Equity	12 Months Ended
	Dec. 31, 2024
Notes to Financial Statements
Equity [Text Block]	16. We have 2,000,000,000 shares of authorized common stock as of December 31, 2024 2023 rights to any dividend declared by our Board of Directors, subject to any preferential or other rights of any outstanding preferred stock, and voting rights to elect all eleven December 31, 2024, 2023, 2022 , the adjusted closing price of our common stock was $275.43, $238.86, and $176.42 per share, respectively. We have 80,000,000 shares of authorized preferred stock, par value $0.001 per share. The preferred shares have preferential rights over the common shares with respect to dividends and net distribution upon liquidation. We did not December 31, 2024 2023 . On February 14, 2024, April 24, 2024, July 24, 2024, October 23 , 2024, our Board approved a cash dividend of $ 0.39 per s hare of common stock issued and outstanding to the holders of record as of March 15, 2024, June 15, 2024, September 15, 2024, December 13, 2024, d December 31, 2024 2023 , respectively, and recorded as a reduction to retained earnings. Share Repurchase Program In December 2023, March 2024, June 2024, August 2024, "December 2023 "March 2024 "June 2024 "August 2024 815 40, Contracts in Entity's Own Equity ("ASC 815 40" zero December 31, 2024 . Upon payment of the aggregate purchase price on December 14, 2023, March 13, 2024, June 13, 2024, August 7, 2024, December 2023 March 2024 June 2024 August 2024 February 2024, April 2024, July 2024, October 2024, December 2023 March 2024 June 2024 August 2024 December 31, 2024 resulted in a reduction of outstanding shares used to calculate the weighted average common shares outstanding for basic and diluted earnings per share ("EPS"). In November 2024, November 12, 2024, 85 January 2025, For the year ended December 31, 2024 , we repurchased 3,994,244 shares of common stock as part of the Repurchase Program, inclusive of the ASRs and open market repurchases, at a weighted average price of $263.04 per share. We utilized cash received from operations to fund these repurchases. As of December 31, 2024 , we had $591.5 million available to repurchase shares through our Repurchase Program. Treasury Stock As of December 31, 2024 , our treasury stock consisted of 403,588,401 shares of common stock. During the years ended December 31, 2024, 2023, 2022 , we transferred 1,100,152, 1,457,514, and 1,650,460 shares of common stock, from the treasury shares at a weighted average price of $23.40, $19.50, and $14.25 per share, respectively. Earnings Per Share The following is a reconciliation of the numerators and denominators of our basic and diluted EPS computations for the years ended December 31: 2024 2023 2022 (In millions, except for share and per share data) Numerator used in basic and diluted EPS: Income from continuing operations $ 950.7 $ 768.4 $ 1,042.1 Less: Net loss (income) attributable to noncontrolling interests 0.7 0.2 (0.4 ) Income (loss) from discontinued operations, net of tax 6.8 (154.0 ) (87.8 ) Net income attributable to Verisk $ 958.2 $ 614.6 $ 953.9 Denominator: Weighted average number of common shares used in basic EPS 142,154,655 146,623,989 157,905,718 Effect of dilutive shares: Potential common shares issuable from stock options and stock-based awards 687,606 712,170 1,023,224 Weighted average number of common shares and dilutive potential common shares used in diluted EPS 142,842,261 147,336,159 158,928,942 The potential shares of common stock that were excluded from diluted EPS were 227,384, 540,221, and 1,350,159 at December 31, 2024, 2023, 2022 , respectively, because the Accumulated Other Comprehensive Losses The following is a summary of accumulated other comprehensive income (losses) as of December 31: 2024 2023 Foreign currency translation adjustment $ 90.1 $ 130.7 Pension and postretirement adjustment, net of tax (75.1 ) (72.5 ) Accumulated other comprehensive income $ 15.0 $ 58.2 The before tax and after tax amounts of other comprehensive (loss) income for the years ended December 31, 2024, 2023, 2022 Tax Benefit Before Tax (Expense) After Tax December 31, 2024 Foreign currency translation adjustment attributable to Verisk $ (40.6 ) $ — $ (40.6 ) Foreign currency translation adjustment attributable to noncontrolling interests 0.9 — 0.9 Foreign currency translation adjustment (39.7 ) — (39.7 ) Pension and postretirement adjustment before reclassifications 0.4 0.1 0.5 Amortization of net actuarial loss and prior service benefit reclassified from accumulated other comprehensive income (losses) (1) (4.1 ) 1.0 (3.1 ) Pension and postretirement adjustment (3.7 ) 1.1 (2.6 ) Total other comprehensive loss $ (43.4 ) $ 1.1 $ (42.3 ) December 31, 2023 Foreign currency translation adjustment attributable to Verisk $ 67.0 $ — $ 67.0 Foreign currency translation adjustment attributable to noncontrolling interests 0.6 — 0.6 Cumulative translation adjustment recognized upon deconsolidation of the Energy business 700.6 — 700.6 Foreign currency translation adjustment 768.2 — 768.2 Pension and postretirement adjustment before reclassifications 35.1 (8.9 ) 26.2 Amortization of net actuarial loss and prior service benefit reclassified from accumulated other comprehensive income (losses) (1) (5.8 ) 1.4 (4.4 ) Pension and postretirement adjustment 29.3 (7.5 ) 21.8 Total other comprehensive income $ 797.5 $ (7.5 ) $ 790.0 December 31, 2022 Foreign currency translation adjustment $ (298.9 ) $ — $ (298.9 ) Foreign currency translation adjustment attributable to noncontrolling interests (1.4 ) — (1.4 ) Foreign currency translation adjustment (300.3 ) — (300.3 ) Pension and postretirement adjustment before reclassifications (45.7 ) 13.5 (32.2 ) Amortization of net actuarial loss and prior service benefit reclassified from accumulated other comprehensive income (losses) (1) (4.4 ) (1.1 ) (5.5 ) Pension and postretirement adjustment (50.1 ) 12.4 (37.7 ) Total other comprehensive loss $ (350.4 ) $ 12.4 $ (338.0 ) _______________ ( 1 These accumulated other comprehensive loss components, before tax, are included under “Cost of revenues” and “Selling, general and administrative” in our accompanying consolidated statements of operations. These components are also included in the computation of net periodic (benefit) cost (See Note 18

Note 17 - Compensation Plans

Note 17 - Compensation Plans	12 Months Ended
	Dec. 31, 2024
Notes to Financial Statements
Share-Based Payment Arrangement [Text Block]	17. 401K We have established the KSOP for the benefit of eligible employees in the U.S. and Puerto Rico. The KSOP includes both an employee savings component and an employee stock ownership component. The purpose of the combined plan is to enable our employees to participate in a tax-deferred savings arrangement under Internal Revenue Servic e Code Sections 401 401 Under the KSOP, eligible employees may 401 401 2024 , $22.5 thousand for 2023 and $20.5 thousand for 2022 . Certain eligible participants (age 50 and older) may 2024 and 2023 , and $6.5 thousand for 2022 .After-tax contributions are limited to 10.0% of a participant’s compensation. Effective January 1, 2019, first 401 December 31, 2024, 2023, 2022 , were $33.8 million, $32.4 million, and $40.0 million, respectively; which, at our option, were funded in cash. In 2005, March 1, 2005. 1,000 December 31 four 1,000 December 31, 2024, 2023, 2022 , there were no profit sharing contributions. Equity Compensation Plans All of our outstanding stock options, restricted stock awards, deferred stock units, and PSUs are covered under our 2021 2013 2021 may one 2021 December 31, 2024 , there were 12,813,327 shares of common stock reserved and available for future issuance under our 2021 December 31, 2024 December 31, 2023 was $124.8 million and $141.9 million, respectively. We issued common stock under these plans from our treasury shares. We have granted equity awards to key employees and directors. The ultimate realization of the PSUs may A summary of the status of the stock options, restricted stock, and PSUs awarded under our 2021 December 31, 2024, 2023, 2022 Stock Option Restricted Stock PSU Weighted Weighted Weighted Average Average Average Aggregate Grant Date Grant Date Number Exercise Intrinsic Number Fair Value Number Fair Value of Options Price Value of Shares Per Share of Shares Per Share (in millions) Outstanding at January 1, 2022 5,067,098 $ 115.73 $ 572.6 351,504 $ 161.33 163,123 $ 192.99 Granted 653,802 $ 196.64 201,617 $ 193.33 111,333 $ 168.63 Dividend reinvestment — $ — — $ — 1,371 N/A Exercised or lapsed (1,435,673 ) $ 92.38 $ 129.1 (205,407 ) $ 157.22 (54,927 ) $ 174.42 Canceled, expired or forfeited (261,411 ) $ 181.48 (40,139 ) $ 182.35 (21,406 ) $ 202.55 Outstanding at December 31, 2022 4,023,816 $ 132.90 $ 193.3 307,575 $ 182.07 199,494 $ 195.34 Granted 211,945 $ 185.29 194,236 $ 185.22 48,486 $ 212.86 Dividend reinvestment — $ — — $ — 1,142 N/A Exercised or lapsed (1,295,815 ) $ 108.85 $ 118.1 (178,602 ) $ 179.39 (45,997 ) $ 192.93 Canceled, expired or forfeited (227,436 ) $ 187.56 (32,170 ) $ 183.25 (21,889 ) $ 207.27 Outstanding at December 31, 2023 2,712,510 $ 143.91 $ 257.6 291,039 $ 186.28 181,236 $ 199.62 Granted 203,884 $ 237.10 155,304 $ 237.93 47,838 $ 265.94 Dividend reinvestment — $ — — $ — 1,073 N/A Exercised or lapsed (976,351 ) $ 127.80 $ 124.8 (120,287 ) $ 188.06 (47,821 ) $ 210.07 Canceled, expired or forfeited (29,710 ) $ 199.81 (18,515 ) $ 207.81 (1,870 ) $ 210.07 Outstanding at December 31, 2024 1,910,333 $ 161.16 $ 218.3 307,541 $ 210.62 180,456 $ 205.10 Exercisable at December 31, 2024 1,345,181 $ 142.14 $ 179.3 Exercisable at December 31, 2023 1,947,253 $ 127.43 $ 217.0 Nonvested at December 31, 2024 565,152 307,541 180,456 Expected to vest at December 31, 2024 462,867 264,717 246,313 (1) _______________ ( 1 Includes estimated performance achievement The fair value of our stock options granted was estimated on the date of grant using a Black-Scholes option valuation model that uses the weighted-average assumptions noted in the following table during the years ended December 31: 2024 2023 2022 Option pricing model Black-Scholes Black-Scholes Black-Scholes Weighted average grant price $ 237.10 $ 185.29 $ 196.64 Expected volatility 23.51 % 27.28 % 25.33 % Risk-free interest rate 3.89 % 3.77 % 1.55 % Expected term in years 3.7 4.0 4.2 Dividend yield 0.66 % 0.66 % 0.60 % Weighted average grant date fair value per stock option $ 53.45 $ 48.14 $ 42.25 A summary of the status of our nonvested options and changes are presented below: Number of Options Weighted Average Grant-Date Fair Value Per Share Nonvested balance at January 1, 2022 1,893,506 $ 28.49 Granted 653,802 $ 42.25 Vested (964,156 ) $ 22.97 Cancelled or expired (261,411 ) $ 35.23 Nonvested balance at December 31, 2022 1,321,741 $ 34.65 Granted 211,945 $ 52.69 Vested (540,993 ) $ 33.08 Cancelled or expired (227,436 ) $ 38.03 Nonvested balance at December 31, 2023 765,257 $ 39.74 Granted 203,884 $ 53.75 Vested (374,279 ) $ 36.67 Cancelled or expired (29,710 ) $ 44.34 Nonvested balance at December 31, 2024 565,152 $ 46.59 Intrinsic value for stock options is calculated based on the exercise price of the underlying awards and the quoted price of our common stock as of the reporting date. Excess tax benefits of $27.3 million, $20.6 million, and $26.5 million from exercised stock options were recorded as income tax benefit in our accompanying consolidated statements of operations for the years ended December 31, 2024, 2023, 2022 , respectively. Stock-based compensation expense for the years ended December 31, 2024, 2023, 2022 was $47.9 million, $54.0 million, and $56.5 million, respectively. December 31, 2024 , the weighted average remaining contractual terms were 5.5 and 4.5 years for outstanding and exercisable stock options, respectively. December 31, 2023 , the weighted average remaining contractual terms were 5.6 years and 4.8 years for outstanding and exercisable stock options, respectively. As of December 31, 2024 , there was $75.1 million of total unrecognized compensation cost, exclusive of the impact of vesting upon retirement eligibility, related to nonvested share-based compensation arrangements granted under our 2021 2013 Our U.K. Sharesave Plan offers qualifying employees in the United Kingdom the opportunity to own shares of our common stock. Employees who elect to participate are granted stock options, of which the exercise price is equal to the average of the closing price on the five three December 31, 2024, 2023, 2022 , we granted 3,268, 5,144, and 9,370 stock options under the U.K. Sharesave Plan at a discounted exercise price of $257.05, $227.65, and $178.26, respectively. As of December 31, 2024 , there were 442,363 shares of common stock reserved and available for future issuance under our U.K. Sharesave Plan. We also offer eligible employees the opportunity to participate in an ESPP. Under our ESPP, participating employees may may not 718, may no December 31, 2024, 2023, 2022 , we issued 16,964, 18,636, and 30,398 shares of common stock at a weighted average discounted price of $247.44, $209.68, and $174.66, respectively. As of December 31, 2024 , there were 1,160,295 shares of common stock reserved and available for future issuance under our ESPP.

Note 18 - Pension and Postretir

Note 18 - Pension and Postretirement Benefits	12 Months Ended
	Dec. 31, 2024
Notes to Financial Statements
Retirement Benefits [Text Block]	18. We have a frozen qualified defined benefit pension plan for certain of our employees through membership in the Pension Plan for Insurance Organizations (the “Pension Plan”), a multiple-employer trust. Prior to the freeze, we applied a cash balance formula to determine future benefits. Under the cash balance formula, each participant has an account, which was credited annually based on salary rates determined by years of service, as well as the interest earned on the previous year-end cash balance. We also have a non-qualified frozen supplemental cash balance plan (“SERP”) for certain employees. Our SER P is funded from our general assets. We contributed $0.7 million to our SERP in 2024 and $1.7 million in 2023 , respectively, and expect to contribute $0.8 million in 2025. Our Pension Plan’s funding policy is to contribute annually at an amount between the minimum funding requirements set forth in the Employee Retirement Income Security Act of 1974 No d for 2024 and 2023 We also provide certain healthcare and life insurance benefits for both active and retired employees. The Postretirement Health and Life Insurance Plan (the “Postretirement Plan”), which has been frozen, is contributory, requiring participants to pay a stated percentage of the premium for coverage. We do not 2025. The following table sets forth the changes in the benefit obligations and the plan assets, the funded status of the Pension Plan, SERP, and Postretirement Plan, and the amounts recognized in our consolidated balance sheets at December 31: Pension Plan and SERP Postretirement Plan 2024 2023 2024 2023 Change in benefit obligation: Benefit obligation at January 1 $ 317.8 $ 330.9 $ 4.1 $ 4.2 Interest cost 16.1 17.1 0.1 0.2 Actuarial (gain) loss (7.8 ) (0.8 ) (0.4 ) 1.1 Plan participants’ contributions — — 1.4 1.3 Benefits paid (28.1 ) (29.4 ) (2.2 ) (2.7 ) Benefit obligation at December 31 $ 298.0 $ 317.8 $ 3.0 $ 4.1 Accumulated benefit obligation at December 31 $ 298.0 $ 317.8 Change in plan assets: Fair value of plan assets at January 1 $ 425.9 $ 406.3 $ 8.1 $ 7.6 Actuarial gain 11.0 47.3 — 0.4 Employer contributions, net 0.7 1.7 0.8 1.5 Plan participants’ contributions — — 1.4 1.3 Benefits paid (28.1 ) (29.4 ) (2.2 ) (2.7 ) Fair value of plan assets at December 31 $ 409.5 $ 425.9 $ 8.1 $ 8.1 Funded status at December 31 $ (111.5 ) $ (108.1 ) $ (5.1 ) $ (4.0 ) Amounts recognized in the consolidated balance sheets consist of: Pension assets, noncurrent (1) $ (120.4 ) $ (117.4 ) $ (5.1 ) $ (4.0 ) Pension, SERP and postretirement benefits, current (2) 0.7 1.0 — — Pension, SERP and postretirement benefits, noncurrent (3) 8.2 8.3 — — Total Pension, SERP and Postretirement benefits $ (111.5 ) $ (108.1 ) $ (5.1 ) $ (4.0 ) _______________ ( 1 ( 2 Included in "Accounts payable and accrued liabilities" in our accompanying consolidated balance sheets ( 3 Included in "Other noncurrent liabilities" in our accompanying consolidated balance sheets The pre-tax components included within accumulated other comprehensive losses as of December 31 Pension Plan and SERP Postretirement Plan 2024 2023 2024 2023 Prior service cost $ 2.3 $ 2.4 $ — $ — Actuarial losses 122.6 118.3 3.1 3.6 Accumulated other comprehensive losses, pretax $ 124.9 $ 120.7 $ 3.1 $ 3.6 The pre-tax components of net periodic benefit (credit) cost and the amounts recognized in other comprehensive income are summarized below for the years ended December 31: Pension Plan and SERP Postretirement Plan 2024 2023 2022 2024 2023 2022 Interest cost $ 16.1 $ 17.1 $ 14.7 $ 0.1 $ 0.2 $ 0.1 Expected return on plan assets (26.8 ) (24.1 ) (28.2 ) (0.2 ) (0.1 ) (0.2 ) Amortization of prior service cost reclassified from accumulated other comprehensive income 0.2 0.2 0.2 — — — Amortization of net actuarial loss reclassified from accumulated other comprehensive income 3.6 5.2 4.0 0.3 0.4 0.2 Net periodic (credit) benefit cost (6.9 ) (1.6 ) (9.3 ) 0.2 0.5 0.1 Less: Amortization of prior service cost reclassified from accumulated other comprehensive income (0.1 ) (0.2 ) (0.2 ) — — — Less: Amortization of actuarial loss reclassified from accumulated other comprehensive losses (0.1 ) (0.1 ) (0.2 ) — — — Less: Net loss recognized reclassified from accumulated other comprehensive losses (3.5 ) (5.1 ) (3.8 ) (0.3 ) (0.4 ) (0.2 ) Actuarial loss (gain) 7.9 (24.3 ) 53.5 (0.2 ) 0.8 1.0 Total recognized in other comprehensive income 4.2 (29.7 ) 49.3 (0.5 ) 0.4 0.8 Total recognized in net periodic benefit credit and other comprehensive (income) loss $ (2.7 ) $ (31.3 ) $ 40.0 $ (0.3 ) $ 0.9 $ 0.9 The weighted-average assumptions used to determine benefit obligations as of December 31, 2024 2023 2024 2023 2022 Pension Plan and SERP Postretirement Plan Weighted-average assumptions used to determine benefit obligations: 2024 2023 2024 2023 Discount rate 5.64 % 5.37 % 5.17 % 4.75 % Expected return on plan assets 6.50 % 6.50 % 1.75 % 1.75 % Cash balance interest credit rate 5.42 % 4.43 % N/A Weighted-average assumptions used to determine net periodic benefit (credit) cost: 2024 2023 2022 2024 2023 2022 Discount rate 5.37 % 5.48 % 2.75 % 4.75 % 5.25 % 2.25 % Expected return on plan assets 6.50 % 6.25 % 6.25 % 1.75 % 1.75 % 1.75 % Cash balance interest credit rate 5.42 % 4.43 % 2.57 % N/A The following table presents the estimated future benefit payments for the respective plans. The future benefit payments for the Postretirement Plan are net of the federal Medicare subsidy. Pension Plan Postretirement and SERP Plan Gross Gross Medicare Net Benefit Benefit Subsidy Benefit Amount Amount Payments Amount 2025 $ 29.0 $ 0.6 $ — $ 0.6 2026 $ 28.6 $ 0.5 $ — $ 0.5 2027 $ 28.7 $ 0.4 $ — $ 0.4 2028 $ 27.4 $ 0.4 $ — $ 0.4 2029 $ 26.1 $ 0.3 $ — $ 0.3 2030 and thereafter $ 118.9 $ 1.1 $ — $ 1.1 The healthcare cost trend rate for 2024 2042. The subsidy benefit from the Medicare Prescription Drug, Improvement and Modernization Act of 2003 December 31, 2024 2023 . The subsidy cost increased the net periodic benefit cost by approximately $132.9 thousand, $118.1 thousand, and $80.7 thousand in fiscal 2024 , 2023 and 2022, The expected return on our Pension Plan assets as of December 31, 2024 2023 was 6.50% and 6.25%, respectively, which was determined by taking into consideration our analysis of our actual historical investment returns to a broader long-term forecast after adjusting for the target investment allocation and reflecting the current economic environment. During the first 2024 December 31, 2023, The asset allocatio n at December 31, 2024 2023 , and target allo Target Percentage of Plan Assets Asset Category Allocation 2024 2023 Equity securities 40.0 % 36.5 % 40.0 % Debt securities 60.0 57.5 53.5 Real Estate — 4.9 5.3 Other — 1.1 1.2 Total 100.0 % 100.0 % 100.0 % We have used the target investment allocation to derive the expected return as we believe this allocation will be retained on an ongoing basis that will be commensurate with the projected cash flows of the plan. The expected return for each investment category within the target investment allocation is developed using average historical rates of return for each targeted investment category, considering the projected cash flow of our Pension Plan. The difference between this expected return and the actual return on plan assets is generally deferred and recognized over subsequent periods through future net periodic benefit costs. We believe that the use of the average historical rates of returns is consistent with the timing and amounts of expected contributions to the plans and benefit payments to plan participants. These considerations provide the basis for reasonable assumptions with respect to the expected long-term rate of return on plan assets. We also maintain a voluntary employees beneficiary association plan (the “VEBA Plan”) under Section 501 9 December 31, 2024 2023 100% in debt securities. There were no 1, 2, 3 December 31, 2024 2023 . Refer to N 7 Quoted Prices Significant in Active Other Markets for Observable Identical Assets Inputs Total (Level 1) (Level 2) December 31, 2024 Equity Managed equity accounts (1) $ 117.0 $ 117.0 $ — Equity — pooled separate account (2) 32.4 — 32.4 Debt Fixed income manager — separately managed account (5) 235.7 — 235.7 Fixed income manager — government securities (3) 8.1 8.1 — Others Cash — pooled separate account (2) 4.5 — 4.5 Global real estate account (4) 19.9 — 19.9 Total $ 417.6 $ 125.1 $ 292.5 December 31, 2023 Equity Managed equity accounts (1) $ 131.6 $ 131.6 $ — Equity — pooled separate account (2) 38.6 — 38.6 Debt Fixed income manager — separately managed account (5) 138.9 — 138.9 Fixed income manager — pooled separate account (2) 89.2 — 89.2 Fixed income manager — government securities (3) 8.1 8.1 — Others Cash — pooled separate account (2) 5.2 — 5.2 Global real estate account (4) 22.4 — 22.4 Total $ 434.0 $ 139.7 $ 294.3 _______________ ( 1 Valued at the closing price of shares for domestic stocks within the managed equity accounts, and valued at the net asset value (“NAV”) of shares for mutual funds at either the closing price reported in the active market or based on yields currently available on comparable securities of issuers with similar credit ratings for corporate bonds held by the Pension Plan in these managed accounts. ( 2 The pooled separate accounts invest in domestic and foreign stocks, bonds and mutual funds. The fair values of these stocks, bonds and mutual funds are publicly quoted and are used in determining the NAV of the pooled separate account, which is not ( 3 The fund invested in the U.S. government, its agencies or instrumentalities or securities that are rated AAA by S&P, AAA by Fitch, or Aaa by Moody’s, including but not ( 4 The funds invested in common stocks and other equity securities issued by domestic and foreign real estate companies, including real estate investment trusts ("REIT") and similar REIT-like entities. The fair values of these stocks, bonds and mutual funds are publicly quoted and are used in determining the NAV of the funds, which is not ( 5 The separately managed accounts invest in U.S. Treasury Bonds and U.S. Treasury Separate Trading of Registered Interest and Principal of Securities (“UST STRIPS”). The fair values of these bonds and UST STRIPS are publicly quoted and are used in determining the NAV of the separately managed account, which is not

Note 19 - Segment Reporting

Note 19 - Segment Reporting	12 Months Ended
	Dec. 31, 2024
Notes to Financial Statements
Segment Reporting Disclosure [Text Block]	19. ASC 280 10, Disclosures About Segments of an Enterprise and Related Information 280 10” 280 10 280 10. Each of our reportable segments, Insurance, Energy and Specialized Markets, and Financial Services has a portion of its revenue from more than one three Note 2 Insurance: Energy and Specialized Markets: first 2022 , 3E February 1, 2023, Note 11. Financial Services: April 8, 2022, Note 11. The CODM uses EBITDA and consolidated net income to set budgets, evaluate margins, review actual results and in deciding whether to reinvest profits into the business, pursue acquisitions, pay dividends and/or engage in other capital management transactions. Consolidated net income is the measure of segment profit most consistent with U.S. GAAP that is regularly reviewed by the CODM to allocate resources and assess performance. For the year ended December 31, 2024 December 31, 2023 As of February 1, 2023, one one Note 6. Revenues for information on disaggregated revenues by type of service and by country. Segment assets is reported on the balance sheet as total consolidated assets. The following table provides our revenue and EBITDA by reportable segment for the year ended December 31, 2022, 2022 Insurance Energy and Specialized Markets Financial Services Total Revenues $ 2,437.0 $ 22.4 $ 37.6 $ 2,497.0 Expenses: Cost of revenues (exclusive of items shown separately below) (781.9 ) (19.1 ) (23.6 ) (824.6 ) Selling, general and administrative (347.4 ) (26.7 ) (7.4 ) (381.5 ) Other operating (loss) gain - 450.0 (95.8 ) 354.2 Investment income (loss) (4.7 ) (0.4 ) (0.2 ) (5.3 ) EBITDA from discontinued operations of the Energy business - (117.9 ) - (117.9 ) EBITDA $ 1,303.0 $ 308.3 $ (89.4 ) $ 1,521.9 EBITDA from discontinued operations of the Energy business 117.9 Depreciation and amortization of fixed assets (164.2 ) Amortization of intangible assets (74.4 ) Interest expense (138.8 ) Provision for income taxes (220.3 ) Income (loss) from discontinued operations (87.8 ) Net income $ 954.3 Long-lived assets by country are provided below as of December 31: 2024 2023 Long-lived assets: U.S. $ 2,303.1 $ 2,455.7 U.K. 589.4 597.9 Other countries 460.6 502.4 Total long-lived assets $ 3,353.1 $ 3,556.0

Note 20 - Related Parties

Note 20 - Related Parties	12 Months Ended
	Dec. 31, 2024
Notes to Financial Statements
Related Party Transactions Disclosure [Text Block]	20. We consider our stockholders that own more than 5% 850, Related Party Disclosures no 5% December 31, 2024 2023. Therese M. Vaughan, one January 31, 2024. 1% 2024 2023. Greg Hendrick, one Lee M. Shavel, our President and CEO and one no

Note 21 - Commitments and Conti

Note 21 - Commitments and Contingencies	12 Months Ended
	Dec. 31, 2024
Notes to Financial Statements
Commitments and Contingencies Disclosure [Text Block]	21. We are a party to legal proceedings, investigations, examinations, subpoenas, third may Telematics Litigation As of April 19, 2024, twenty sixteen four third June 7, No. 1:24 03115 ) December 13, 2024, Adam Dinitz, et al. v. Verisk Analytics, Inc. Dinitz No. 24 11157, Dinitz December 13, 2024. not Indemnification Claim In December 2023, 2016, 2016 not Commercial Litigation On February 12, 2024, No. N24C 02 130 June 21, 2024, August 29, 2024. not Data Privacy Litigation On or about February 8, 2023, No. 000903 24, 19,640 June 21, 2024, not August 20, 2024. August 26, 2024. October 11, 2024, not On January 30, 2023, No.: 8:23 00186. April 13, 2023. not February 7, 2024. February 22, 2024. On June 27, 2022, No. 3:22 03789. 631 scrappyrent2own.com 17200 January 27, 2023. February 28, 2023. April 13, 2023. August 18, 2023 September 20, 2023. September 20, 2023. December 18, 2023. January 30, 2024. February 9, 2024 July 19, 2024 September 20, 2024. November 20, 2024, On December 15, 2021, No. 2:21 6911. April 22, 2022. March 30, 2023, February 16, 2024. December 23, 2024,

Note 22 - Subsequent Events

Note 22 - Subsequent Events	12 Months Ended
	Dec. 31, 2024
Notes to Financial Statements
Subsequent Events [Text Block]	22. In January 2025, four On February 19, 2025, March 31, 2025 , March 14, 2025 . **************

Schedule II - Valuation and Qua

Schedule II - Valuation and Qualifying Accounts and Reserves	12 Months Ended
	Dec. 31, 2024
Notes to Financial Statements
SEC Schedule, 12-09, Schedule of Valuation and Qualifying Accounts Disclosure [Text Block]	Supplementary Financial Information (Unaudited) Valuation and Qualifying Accounts and Reserves For the Years Ended December 31, 2024, 2023, 2022 (In millions) Balance at Charged to Beginning Costs and Deductions— Balance at Description of Year Expenses (1) Write-offs (2) End of Year Year ended December 31, 2024 Allowance for doubtful accounts $ 15.1 $ 13.3 $ (5.9 ) $ 22.5 Valuation allowance for income taxes $ 5.6 $ 1.1 $ (2.5 ) $ 4.2 Year ended December 31, 2023 Allowance for doubtful accounts $ 14.3 $ 8.7 $ (7.9 ) $ 15.1 Valuation allowance for income taxes $ 45.3 $ 1.2 $ (40.9 ) $ 5.6 Year ended December 31, 2022 Allowance for doubtful accounts $ 15.4 $ 6.4 $ (7.5 ) $ 14.3 Valuation allowance for income taxes $ 38.3 $ 41.2 $ (34.2 ) $ 45.3 ( 1 Primarily additional reserves for bad debts ( 2 Primarily accounts receivable balances written off, net of recoveries, the expiration of loss carryforwards, and businesses held for sale

Significant Accounting Policies

Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2024
Accounting Policies [Abstract]
Basis of Accounting, Policy [Policy Text Block]	Our accompanying consolidated financial statements have been prepared on the basis of accounting principles generally accepted in the United States of America (“U.S. GAAP”). The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting periods. Significant estimates include acquisition purchase price allocations, the fair value of goodwill, the realization of deferred tax assets and liabilities, acquisition-related liabilities, fair value of stock-based compensation for equity awards granted, and assets and liabilities for pension and postretirement benefits. Actual results may On February 1, 2023, 205 20, Discontinued Operations 205 20” 205 20.
Consolidation, Subsidiaries or Other Investments, Consolidated Entities, Policy [Policy Text Block]	(a) Intercompany Accounts and Transactions The consolidated financial statements include all of our accounts. All intercompany accounts and transactions have been eliminated.
Revenue from Contract with Customer [Policy Text Block]	(b) Revenue Recognition The following describes our primary types of revenues and the applicable revenue recognition policies. We recognize revenues through recurring and non-recurring long-term agreements (generally one five Hosted Subscriptions We offer hosted subscriptions, where customers access content only through our online portal (the "Hosted Subscription"). We grant a license to our customer to enter our online portal. The license is a contractual mechanism that allows our customer to access our online portal for a defined period of time. As the license alone does not no not 606, Revenue from Contracts with Customers 606" Advisory/Consulting Services We provide certain discrete project based advisory/consulting services, which are recognized over time by measuring the progress toward complete satisfaction of the performance obligation, based on the input method of consulting hours worked; this aligns with the results achieved and value transferred to our customer. The hours consumed are most reflective of the measure of progress towards satisfying the performance obligation, as the resources hours worked directly tie to the progress of the services to be provided. In general, they are billed over the course of the project. Transactional Solutions Certain solutions are also paid for by customers on a transactional basis. We recognize these revenues as the solutions are delivered or services performed at a point in time. In general, our customers are billed monthly at the end of each month. (c) Deferred Revenues We invoice our customers in annual, quarterly, monthly, or milestone installments. Amounts billed and/or collected in advance of services being provided are recorded as “Deferred revenues” and “Other noncurrent liabilities” in our accompanying consolidated balance sheets and are recognized as the services are performed, control is transferred to customers, and the applicable revenue recognition criteria is met. (d) Accounts Receivable and Allowance for Doubtful Accounts Accounts receivable are generally recorded at the invoiced amount. Unbilled receivables are short-term in nature and expected to be billed within one (e) Deferred Commissions We recognize an asset for the incremental costs of obtaining a contract with a customer if we expect the benefit of those costs to be longer than one five December 31, 2024
Property, Plant and Equipment, Policy [Policy Text Block]	(f) Fixed Assets and Finite-lived Intangible Assets Fixed assets and finite-lived intangibles are stated at cost less accumulated depreciation and amortization, which is computed on a straight-line basis over their estimated useful lives. Leasehold improvements are amortized over the shorter of the useful life of the asset or the lease term. Our internal software development costs primarily relate to internal-use software. Such costs are capitalized in the application development stage in accordance with ASC 350 40, Internal-use Software 350 40" three In accordance with ASC 360, Property, Plant & Equipment may not first
Lessee, Leases [Policy Text Block]	(g) Leases We have operating and finance leases for corporate offices, data centers, and certain equipment that are accounted for under ASC 842, Leases 2033 We determine if an arrangement is a lease at inception. We consider any contract where there is an identified asset and that it has the right to control the use of such asset in determining whether the contract contains a lease. A right-of-use ("ROU") asset represents our right to use an underlying asset for the lease term and the lease liabilities represent our obligation to make lease payments arising from the lease. Operating lease ROU assets and lease liabilities are recognized at the commencement date based on the present value of lease payments over the lease term. As our operating leases do not zero
Fair Value of Financial Instruments, Policy [Policy Text Block]	(h) Fair Value of Financial and Non-financial Instruments We follow the provisions of ASC 820 10, Fair Value Measurements 820 10” 820 10 820 10
Foreign Currency Transactions and Translations Policy [Policy Text Block]	(i) Foreign Currency We have determined local currencies are the functional currencies of our foreign operations. The assets and liabilities of foreign subsidiaries are translated at the period-end rate of exchange and statement of operations items are translated at the average rates prevailing during the year. The resulting translation adjustment is recorded as a component of “Accumulated other comprehensive losses” in our accompanying consolidated statements of changes in stockholders’ equity.
Share-Based Payment Arrangement [Policy Text Block]	(j) Stock-Based Compensation We follow ASC 718, Stock Compensation 718” 718, Our nonqualified stock options have an exercise price equal to the closing price of our common stock on the grant date, with a ten no zero The fair value of our restricted stock is determined using the closing price of our common stock on the grant date. Our restricted stock is not four Performance share units (“PSU”) vest at the end of a three one third zero 500 We estimate expected forfeitures of equity awards at the date of grant and recognize compensation expense only for those awards expected to vest. The forfeiture assumption is ultimately adjusted to the actual forfeiture rate. Estimated forfeiture is ultimately adjusted to actual forfeiture. Changes in the forfeiture assumptions may Excess tax benefit from exercised stock options, lapsing of restricted stock and PSUs is recorded as an income tax benefit in our accompanying consolidated statements of operations. This tax benefit is calculated as the excess of the intrinsic value of options exercised and of the market value of restricted stock lapsed over the compensation recognized for financial reporting purposes.
Research and Development Expense, Policy [Policy Text Block]	(k) Research and Development Costs Research and development costs, which are primarily related to personnel and related overhead costs incurred in developing new services for customers, are expensed as incurred. Such costs were $35.3 million, $36.8 million, and $43.1 million for the years ended December 31, 2024, 2023, 2022
Advertising Cost [Policy Text Block]	(l) Advertising Costs Advertising costs, which are primarily associate d with promoting our brand, names and solutions provided, are expensed as incurred. Such costs were $9.1 million, $11.9 million, and $14.7 million for the years ended December 31, 2024, 2023, 2022
Income Tax, Policy [Policy Text Block]	(m) Income Taxes We account for income taxes under the asset and liability method under ASC 740, Income Taxes 740” Deferred tax assets are recorded to the extent these assets are more likely than not not not We follow ASC 740 10, Income Taxes 740 10” , 740 10 may not not 740 10. We recognize interest and penalties related to unrecognized tax benefits within the income tax expense line in our accompanying consolidated statements of operations. Accrued interest and penalties are included within “Other liabilities” on our accompanying consolidated balance sheets.
Earnings Per Share, Policy [Policy Text Block]	(n) Earnings Per Share Basic and diluted earnings per share (“EPS”) are determined in accordance with ASC 260, Earnings per Share
Pension and Other Postretirement Plans, Policy [Policy Text Block]	(o) Pension and Postretirement Benefits We account for our pension and postretirement benefits under ASC 715, Compensation — Retirement Benefits 715” 715 not December 31.
Standard Product Warranty, Policy [Policy Text Block]	(p) Product Warranty Obligations We provide warranty coverage for certain of our solutions. We recognize a product warranty obligation when claims are probable and can be reasonably estimated. As of December 31, 2024 2023 not
Commitments and Contingencies, Policy [Policy Text Block]	(q) Loss Contingencies We accrue for costs relating to litigation, claims, and other contingent matters when such liabilities become probable and reasonably estimable. Such estimates are based on management’s judgment. Actual amounts paid may In the ordinary course of business, we enter into numerous agreements that contain standard indemnities whereby we indemnify another party for breaches of confidentiality, infringement of intellectual property or gross negligence. Such indemnifications are primarily granted under licensing of computer software. Most agreements contain provisions to limit the maximum potential amount of future payments that we could be required to make under these indemnifications; however, we are not not
Goodwill and Intangible Assets, Policy [Policy Text Block]	(r) Goodwill and Indefinite-Lived Intangible Assets Goodwill represents the excess of acquisition costs over the fair value of tangible net assets and identifiable intangible assets of our businesses acquired. Goodwill and intangible assets deemed to have indefinite lives are not June 30, may not may first not not not
New Accounting Pronouncements, Policy [Policy Text Block]	(s) Recent Accounting Pronouncements Accounting Standard Description Effective Date Effect on Consolidated Financial Statements or Other Significant Matters Segment Reporting (Topic 280 November 2023, No. 2023 07, No. 2023 07" This update changes the reportable segment disclosure requirements requiring enhanced disclosures about significant segment expenses. Public entities are required to disclose significant segment expenses that are regularly provided to the chief operating decision maker and to disclose how reported measures of segment profit or loss are used in assessing segment performance and allocating resources. ASU No. 2023 07 December 15, 2023, December 15, 2024. We adopted this standard within our December 31, 2024 10 ASU 2024 03, 220 Disaggregation of Income Statement Expenses requires disclosures about specific types of expenses included in the expense captions presented on the face of the income statement, as well disclosures about selling expenses. This standard is effective for our annual periods beginning after December 15, 2026 December 15, 2027, We are currently evaluating the impact of adopting this ASU on our income statement disaggregation disclosures. Income Taxes (Topic 740 December 2023, No. 2023 09, No. 2023 09 The amendments within ASU No. 2023 09 The ASU’s amendments are effective for public business entities for fiscal years beginning after December 15, 2024. The adoption of this guidance is not

Note 4 - Accounts Receivable (T

Note 4 - Accounts Receivable (Tables)	12 Months Ended
	Dec. 31, 2024
Notes Tables
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]	2024 2023 Billed receivables $ 421.4 $ 317.1 Unbilled receivables 35.5 32.2 Total receivables 456.9 349.3 Less allowance for doubtful accounts (22.5 ) (15.1 ) Accounts receivable, net $ 434.4 $ 334.2

Note 6 - Revenues (Tables)

Note 6 - Revenues (Tables)	12 Months Ended
	Dec. 31, 2024
Notes Tables
Disaggregation of Revenue [Table Text Block]	2024 2023 2022 Insurance: Underwriting $ 2,024.3 $ 1,892.7 $ 1,734.5 Claims 857.4 788.7 702.5 Total Insurance 2,881.7 2,681.4 2,437.0 Specialized Markets — — 22.4 Financial Services — — 37.6 Total revenues $ 2,881.7 $ 2,681.4 $ 2,497.0 2024 2023 2022 Revenues: United States $ 2,386.1 $ 2,238.3 $ 2,120.1 United Kingdom 214.4 190.1 169.5 Other countries 281.2 253.0 207.4 Total revenues $ 2,881.7 $ 2,681.4 $ 2,497.0
Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block]	Contract Liabilities at December 31, 2022 $ 321.7 Revenue (2,681.4 ) Additions to contract liabilities 2,737.8 Foreign currency translation adjustment (3.0 ) Contract Liabilities at December 31, 2023 375.1 Revenue (2,881.7 ) Additions to contract liabilities 2,956.9 Foreign currency translation adjustment 0.8 Contract Liabilities at December 31, 2024 $ 451.1

Note 7 - Fair Value Measureme_2

Note 7 - Fair Value Measurements (Tables)	12 Months Ended
	Dec. 31, 2024
Notes Tables
Schedule of Carrying Values and Estimated Fair Values of Debt Instruments [Table Text Block]	2024 2023 Fair Value Carrying Estimated Carrying Estimated Hierarchy Value Fair Value Value Fair Value Financial instrument not carried at fair value: Senior Notes (Note 15) Level 2 $ 3,021.0 $ 2,866.5 $ 2,833.7 $ 2,735.3

Note 8 - Leases (Tables)

Note 8 - Leases (Tables)	12 Months Ended
	Dec. 31, 2024
Notes Tables
Lease, Cost [Table Text Block]	2024 2023 Lease cost: Operating lease cost (1) $ 32.7 $ 33.9 Sublease income (4.0 ) (1.7 ) Finance lease cost Depreciation of finance lease assets (2) 19.4 14.4 Interest on finance lease liabilities (3) 2.3 1.0 Total lease cost $ 50.4 $ 47.6 Other information: Cash paid for amounts included in the measurement of lease liabilities Operating cash outflows from operating leases $ (34.5 ) $ (34.9 ) Operating cash outflows from finance leases $ (2.3 ) $ (1.0 ) Financing cash outflows from finance leases $ (21.9 ) $ (15.7 )
Schedule of Weighted Average Number of Shares [Table Text Block]	2024 2023 Weighted-average remaining lease term - operating leases (in years) 7.0 8.2 Weighted-average remaining lease term - finance leases (in years) 3.0 3.1 Weighted-average discount rate - operating leases 4.2 % 4.0 % Weighted-average discount rate - finance leases 4.2 % 4.2 %
Lessee, Lease Liability Maturity [Table Text Block]	Years Ending Operating Leases Finance Leases 2025 $ 32.8 $ 22.1 2026 31.1 10.7 2027 30.5 9.0 2028 29.3 4.8 2029 28.0 - 2030 and thereafter 61.5 - Total lease payments 213.2 46.6 Less: Amount representing interest (28.5 ) (5.2 ) Present value of total lease payments $ 184.7 $ 41.4

Note 9 - Fixed Assets (Tables)

Note 9 - Fixed Assets (Tables)	12 Months Ended
	Dec. 31, 2024
Notes Tables
Property, Plant and Equipment [Table Text Block]	Useful Life (in years) Cost Accumulated Depreciation and Amortization Net December 31, 2024 Furniture and office equipment 3 - 10 $ 164.2 $ (144.8 ) $ 19.4 Leasehold improvements Lease term 101.4 (62.3 ) 39.1 Purchased software 3 58.2 (55.6 ) 2.6 Software development costs 3 1,334.8 (837.4 ) 497.4 Leased equipment 3 - 4 125.0 (77.6 ) 47.4 Total fixed assets $ 1,783.6 $ (1,177.7 ) $ 605.9 December 31, 2023 Furniture and office equipment 3 - 10 $ 178.5 $ (156.7 ) $ 21.8 Leasehold improvements Lease term 116.5 (63.0 ) 53.5 Purchased software 3 59.9 (55.2 ) 4.7 Software development costs 3 1,136.6 (653.0 ) 483.6 Leased equipment 3 - 4 105.1 (63.8 ) 41.3 Total fixed assets $ 1,596.6 $ (991.7 ) $ 604.9

Note 10 - Acquisitions (Tables)

Note 10 - Acquisitions (Tables)	12 Months Ended
	Dec. 31, 2024
Notes Tables
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]	Krug Other Total Cash and cash equivalents $ 7.0 $ 1.0 $ 8.0 Accounts receivable 1.8 0.8 2.6 Other current assets 3.8 0.1 3.9 Fixed assets 0.2 0.1 0.3 Operating lease right-of-use assets, net — 0.2 0.2 Intangible assets 15.1 18.4 33.5 Goodwill 33.1 22.8 55.9 Total assets acquired 61.0 43.4 104.4 Accounts payable and accrued liabilities 5.8 2.1 7.9 Operating lease liabilities — 0.1 0.1 Deferred income tax, net 4.8 3.9 8.7 Other noncurrent liabilities 0.1 1.4 1.5 Total liabilities assumed 10.7 7.5 18.2 Net assets acquired 50.3 35.9 86.2 Less: cash acquired 7.0 1.0 8.0 Net cash purchase price $ 43.3 $ 34.9 $ 78.2 Opta Infutor Others Total Cash and cash equivalents $ 0.4 $ 17.0 $ - $ 17.4 Accounts receivable 5.2 10.7 - 15.9 Other current assets 1.3 3.8 0.1 5.2 Fixed assets 1.5 0.9 0.3 2.7 Operating lease right-of-use assets, net 1.1 2.3 - 3.4 Intangible assets 87.0 83.4 2.3 172.7 Goodwill 141.1 140.3 3.0 284.4 Other assets - 0.1 - 0.1 Total assets acquired 237.6 258.5 5.7 501.8 Current liabilities 4.9 14.4 0.1 19.4 Deferred revenues 0.2 3.1 0.1 3.4 Operating lease liabilities 1.1 3.3 - 4.4 Deferred income tax, net 13.5 - 0.5 14.0 Other liabilities - - 0.2 0.2 Total liabilities assumed 19.7 20.8 0.9 41.4 Net assets acquired 217.9 237.7 4.8 460.4 Cash acquired 0.4 17.0 — 17.4 Net cash purchase price $ 217.5 $ 220.7 $ 4.8 $ 443.0
Schedule of Finite-Lived Intangible Assets Acquired as Part of Business Combination [Table Text Block]	Weighted Average Useful Life (in years) Total Technology-based 5 $ 9.9 Marketing-related 2 0.5 Customer-related 13 23.1 Total intangible assets $ 33.5 Weighted Average Useful Life (in years) Total Technology-based 6 $ 48.5 Marketing-related 4 2.0 Customer-related 13 122.2 Total intangible assets $ 172.7

Note 11 - Dispositions and Di_2

Note 11 - Dispositions and Discontinued Operations (Tables)	12 Months Ended
	Dec. 31, 2024
Notes Tables
Disposal Groups, Including Discontinued Operations [Table Text Block]	For the Year Ended December 31, 2024 2023 2022 Revenues $ - $ 46.8 $ 537.3 Operating expenses: Cost of revenues (exclusive of items shown separately below) - 18.2 207.4 Selling, general and administrative - 33.2 117.2 Depreciation and amortization of fixed assets - - 32.9 Amortization of intangible assets - - 68.5 Impairment loss - - 303.7 Other operating loss - 131.1 33.9 Total operating expenses - 182.5 763.6 Operating (loss) income - (135.7 ) (226.3 ) Other (expense) income: Investment (loss) income and others, net - (5.7 ) 7.0 Total other (expense) income, net - (5.7 ) 7.0 Loss from discontinued operations before income taxes - (141.4 ) (219.3 ) Income tax benefit (expense) 6.8 (12.6 ) 131.5 Income (loss) from discontinued operations, net of income taxes $ 6.8 $ (154.0 ) $ (87.8 ) For the Year Ended December 31, 2024 2023 2022 Significant non-cash operating activities: Depreciation and amortization of fixed assets $ - $ - $ 32.9 Amortization of intangible assets - - 68.5 Impairment loss - - 303.7 Operating lease right-of-use assets, net - 0.1 7.6 Investing activities: Capital expenditures - (6.5 ) (72.6 ) Supplemental disclosures: Fixed assets included in accounts payable and accrued liabilities - - 3.0

Note 12 - Goodwill and Intang_2

Note 12 - Goodwill and Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2024
Notes Tables
Schedule of Goodwill [Table Text Block]	Insurance Goodwill at January 1, 2023 $ 1,676.0 Acquisitions 55.9 Purchase accounting reclassifications (0.1 ) Foreign currency translation adjustment 29.0 Goodwill at December 31, 2023 1,760.8 Acquisitions 10.6 Dispositions (15.8 ) Purchase accounting reclassifications 0.3 Foreign currency translation adjustment (29.3 ) Goodwill at December 31, 2024 $ 1,726.6
Schedule of Finite-Lived Intangible Assets [Table Text Block]	Weighted Average Useful Life Accumulated (in years) Cost Amortization Net December 31, 2024 Technology-based 8 $ 364.9 $ (285.3 ) $ 79.6 Marketing-related 6 37.8 (35.5 ) 2.3 Contract-based 6 5.0 (5.0 ) - Customer-related 13 529.1 (224.0 ) 305.1 Database-based 8 15.1 (9.7 ) 5.4 Total intangible assets $ 951.9 $ (559.5 ) $ 392.4 December 31, 2023 Technology-based 8 $ 370.2 $ (261.2 ) $ 109.0 Marketing-related 6 42.7 (38.7 ) 4.0 Contract-based 6 5.0 (5.0 ) — Customer-related 13 542.1 (190.7 ) 351.4 Database-based 8 15.2 (7.9 ) 7.3 Total intangible assets $ 975.2 $ (503.5 ) $ 471.7
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]	Years Ending Amount 2025 $ 62.0 2026 60.1 2027 52.1 2028 45.1 2029 40.3 2030 and thereafter 132.8 Total $ 392.4

Note 13 - Income Taxes (Tables)

Note 13 - Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2024
Notes Tables
Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]	2024 2023 2022 U.S. $ 1,201.6 $ 1,021.9 $ 1,277.1 Foreign 27.0 5.3 (14.7 ) Total income before income taxes $ 1,228.6 $ 1,027.2 $ 1,262.4
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]	2024 2023 2022 Current: Federal $ 223.0 $ 226.8 $ 247.8 State and local 67.5 52.0 64.7 Foreign 7.9 9.0 1.1 Total current provision for income taxes 298.4 287.8 313.6 Deferred: Federal (17.2 ) (23.4 ) (43.3 ) State and local (1.4 ) (3.4 ) (11.2 ) Foreign (1.9 ) (2.2 ) (38.8 ) Total deferred provision for income taxes (20.5 ) (29.0 ) (93.3 ) Provision for income taxes $ 277.9 $ 258.8 $ 220.3
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]	2024 2023 2022 Federal statutory rate 21.0 % 21.0 % 21.0 % State and local taxes, net of federal tax benefit 4.3 3.7 3.4 Impact of dispositions (0.2 ) - (3.0 ) UK valuation allowance release - - (2.4 ) Global Intangible Low-taxed Income 0.2 1.3 0.4 Stock-based compensation (1.9 ) (1.8 ) (1.7 ) Other (0.8 ) 1.0 (0.2 ) Effective tax rate 22.6 % 25.2 % 17.5 %
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]	2024 2023 Deferred tax assets: Employee wages and other benefits $ 47.2 $ 49.9 Lease liabilities 46.3 55.4 Net operating loss carryover 7.6 9.4 Interest expense 30.8 31.0 Other 16.1 17.1 Total 148.0 162.8 Less valuation allowance (4.2 ) (5.6 ) Deferred tax assets 143.8 157.2 Deferred tax liabilities: Right of use assets (40.9 ) (48.3 ) Fixed assets and intangible assets (168.6 ) (194.1 ) Commissions (19.3 ) (18.2 ) Pensions (59.2 ) (57.0 ) Other (13.1 ) (18.9 ) Deferred tax liabilities (301.1 ) (336.5 ) Deferred tax liabilities, net $ (157.3 ) $ (179.3 )
Summary of Operating Loss Carryforwards [Table Text Block]	Years Ending Amount 2025 - 2032 $ 16.1 2033 - 2037 4.6 2038 - 2044 32.3 Total $ 53.0
Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block]	2024 2023 2022 Unrecognized tax benefit as of January 1 $ 2.0 $ 3.2 $ 3.4 Gross increase in tax positions in prior period 2.3 0.8 1.0 Gross decrease in tax positions in prior period - - - Settlements - - (0.6 ) Lapse of statute of limitations (0.2 ) (2.0 ) (0.6 ) Unrecognized tax benefit as of December 31 $ 4.1 $ 2.0 $ 3.2

Note 14 - Composition of Cert_2

Note 14 - Composition of Certain Financial Statement Caption (Tables)	12 Months Ended
	Dec. 31, 2024
Notes Tables
Schedule of Accounts Payable and Accrued Liabilities [Table Text Block]	2024 2023 Accounts payable and accrued liabilities: Accrued salaries, benefits and other related costs $ 143.6 $ 149.4 Escrow liabilities - 3.9 Accrued interest 20.7 19.1 Trade accounts payable and other accrued expenses 85.5 158.4 Acquisition-related liabilities - 10.0 Total accounts payable and accrued liabilities $ 249.8 $ 340.8
Schedule of Other Assets, Noncurrent [Table Text Block]	2024 2023 Other noncurrent assets: Pension benefits $ 125.3 $ 121.4 Other assets - prepaid expenses 87.6 73.2 Investments in nonpublic companies 222.2 231.4 State income tax receivable - 67.7 Deposits and other 2.8 2.4 Total other noncurrent assets $ 437.9 $ 496.1

Note 15 - Debt (Tables)

Note 15 - Debt (Tables)	12 Months Ended
	Dec. 31, 2024
Notes Tables
Schedule of Debt [Table Text Block]	Issuance Maturity Date Date 2024 2023 Short-term debt and current portion of long-term debt: Credit Facilities: Syndicated revolving credit facility Various Various $ - $ - Senior Notes: 4.000 0.3 5/15/2015 6/15/2025 $ 499.7 $ - Finance lease liabilities (1) Various Various 14.5 14.5 Short-term debt and current portion of long-term debt 514.2 14.5 Long-term debt: Senior notes: 4.000 1.8 5/15/2015 6/15/2025 - 898.2 4.125 6.3 7.8 3/6/2019 3/15/2029 606.3 607.8 5.500 3.7 3.8 5/15/2015 6/15/2045 346.3 346.2 3.625 9.2 9.6 5/13/2020 5/15/2050 490.8 490.4 5.750 7.9 8.9 3/3/2023 4/1/2033 492.1 491.1 5.250 14.2 6/5/2024 6/5/2034 585.8 - Finance lease liabilities (1) Various Various 26.9 20.0 Syndicated revolving credit facility debt issuance costs Various Various (1.3 ) (1.5 ) Long-term debt 2,546.9 2,852.2 Total debt $ 3,061.1 $ 2,866.7
Schedule of Maturities of Long-Term Debt [Table Text Block]	Years Ending Amount 2025 $ 520.4 2026 9.3 2027 7.6 2028 4.0 2029 600.0 2030 and thereafter 1,950.0 Total $ 3,091.3

Note 16 - Stockholders' Equity

Note 16 - Stockholders' Equity (Tables)	12 Months Ended
	Dec. 31, 2024
Notes Tables
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	2024 2023 2022 (In millions, except for share and per share data) Numerator used in basic and diluted EPS: Income from continuing operations $ 950.7 $ 768.4 $ 1,042.1 Less: Net loss (income) attributable to noncontrolling interests 0.7 0.2 (0.4 ) Income (loss) from discontinued operations, net of tax 6.8 (154.0 ) (87.8 ) Net income attributable to Verisk $ 958.2 $ 614.6 $ 953.9 Denominator: Weighted average number of common shares used in basic EPS 142,154,655 146,623,989 157,905,718 Effect of dilutive shares: Potential common shares issuable from stock options and stock-based awards 687,606 712,170 1,023,224 Weighted average number of common shares and dilutive potential common shares used in diluted EPS 142,842,261 147,336,159 158,928,942
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]	2024 2023 Foreign currency translation adjustment $ 90.1 $ 130.7 Pension and postretirement adjustment, net of tax (75.1 ) (72.5 ) Accumulated other comprehensive income $ 15.0 $ 58.2
Comprehensive Income (Loss) [Table Text Block]	Tax Benefit Before Tax (Expense) After Tax December 31, 2024 Foreign currency translation adjustment attributable to Verisk $ (40.6 ) $ — $ (40.6 ) Foreign currency translation adjustment attributable to noncontrolling interests 0.9 — 0.9 Foreign currency translation adjustment (39.7 ) — (39.7 ) Pension and postretirement adjustment before reclassifications 0.4 0.1 0.5 Amortization of net actuarial loss and prior service benefit reclassified from accumulated other comprehensive income (losses) (1) (4.1 ) 1.0 (3.1 ) Pension and postretirement adjustment (3.7 ) 1.1 (2.6 ) Total other comprehensive loss $ (43.4 ) $ 1.1 $ (42.3 ) December 31, 2023 Foreign currency translation adjustment attributable to Verisk $ 67.0 $ — $ 67.0 Foreign currency translation adjustment attributable to noncontrolling interests 0.6 — 0.6 Cumulative translation adjustment recognized upon deconsolidation of the Energy business 700.6 — 700.6 Foreign currency translation adjustment 768.2 — 768.2 Pension and postretirement adjustment before reclassifications 35.1 (8.9 ) 26.2 Amortization of net actuarial loss and prior service benefit reclassified from accumulated other comprehensive income (losses) (1) (5.8 ) 1.4 (4.4 ) Pension and postretirement adjustment 29.3 (7.5 ) 21.8 Total other comprehensive income $ 797.5 $ (7.5 ) $ 790.0 December 31, 2022 Foreign currency translation adjustment $ (298.9 ) $ — $ (298.9 ) Foreign currency translation adjustment attributable to noncontrolling interests (1.4 ) — (1.4 ) Foreign currency translation adjustment (300.3 ) — (300.3 ) Pension and postretirement adjustment before reclassifications (45.7 ) 13.5 (32.2 ) Amortization of net actuarial loss and prior service benefit reclassified from accumulated other comprehensive income (losses) (1) (4.4 ) (1.1 ) (5.5 ) Pension and postretirement adjustment (50.1 ) 12.4 (37.7 ) Total other comprehensive loss $ (350.4 ) $ 12.4 $ (338.0 )

Note 17 - Compensation Plans (T

Note 17 - Compensation Plans (Tables)	12 Months Ended
	Dec. 31, 2024
Notes Tables
Share-Based Payment Arrangement, Option, Activity [Table Text Block]	Stock Option Restricted Stock PSU Weighted Weighted Weighted Average Average Average Aggregate Grant Date Grant Date Number Exercise Intrinsic Number Fair Value Number Fair Value of Options Price Value of Shares Per Share of Shares Per Share (in millions) Outstanding at January 1, 2022 5,067,098 $ 115.73 $ 572.6 351,504 $ 161.33 163,123 $ 192.99 Granted 653,802 $ 196.64 201,617 $ 193.33 111,333 $ 168.63 Dividend reinvestment — $ — — $ — 1,371 N/A Exercised or lapsed (1,435,673 ) $ 92.38 $ 129.1 (205,407 ) $ 157.22 (54,927 ) $ 174.42 Canceled, expired or forfeited (261,411 ) $ 181.48 (40,139 ) $ 182.35 (21,406 ) $ 202.55 Outstanding at December 31, 2022 4,023,816 $ 132.90 $ 193.3 307,575 $ 182.07 199,494 $ 195.34 Granted 211,945 $ 185.29 194,236 $ 185.22 48,486 $ 212.86 Dividend reinvestment — $ — — $ — 1,142 N/A Exercised or lapsed (1,295,815 ) $ 108.85 $ 118.1 (178,602 ) $ 179.39 (45,997 ) $ 192.93 Canceled, expired or forfeited (227,436 ) $ 187.56 (32,170 ) $ 183.25 (21,889 ) $ 207.27 Outstanding at December 31, 2023 2,712,510 $ 143.91 $ 257.6 291,039 $ 186.28 181,236 $ 199.62 Granted 203,884 $ 237.10 155,304 $ 237.93 47,838 $ 265.94 Dividend reinvestment — $ — — $ — 1,073 N/A Exercised or lapsed (976,351 ) $ 127.80 $ 124.8 (120,287 ) $ 188.06 (47,821 ) $ 210.07 Canceled, expired or forfeited (29,710 ) $ 199.81 (18,515 ) $ 207.81 (1,870 ) $ 210.07 Outstanding at December 31, 2024 1,910,333 $ 161.16 $ 218.3 307,541 $ 210.62 180,456 $ 205.10 Exercisable at December 31, 2024 1,345,181 $ 142.14 $ 179.3 Exercisable at December 31, 2023 1,947,253 $ 127.43 $ 217.0 Nonvested at December 31, 2024 565,152 307,541 180,456 Expected to vest at December 31, 2024 462,867 264,717 246,313 (1)
Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]	2024 2023 2022 Option pricing model Black-Scholes Black-Scholes Black-Scholes Weighted average grant price $ 237.10 $ 185.29 $ 196.64 Expected volatility 23.51 % 27.28 % 25.33 % Risk-free interest rate 3.89 % 3.77 % 1.55 % Expected term in years 3.7 4.0 4.2 Dividend yield 0.66 % 0.66 % 0.60 % Weighted average grant date fair value per stock option $ 53.45 $ 48.14 $ 42.25
Schedule of Nonvested Share Activity [Table Text Block]	Number of Options Weighted Average Grant-Date Fair Value Per Share Nonvested balance at January 1, 2022 1,893,506 $ 28.49 Granted 653,802 $ 42.25 Vested (964,156 ) $ 22.97 Cancelled or expired (261,411 ) $ 35.23 Nonvested balance at December 31, 2022 1,321,741 $ 34.65 Granted 211,945 $ 52.69 Vested (540,993 ) $ 33.08 Cancelled or expired (227,436 ) $ 38.03 Nonvested balance at December 31, 2023 765,257 $ 39.74 Granted 203,884 $ 53.75 Vested (374,279 ) $ 36.67 Cancelled or expired (29,710 ) $ 44.34 Nonvested balance at December 31, 2024 565,152 $ 46.59

Note 18 - Pension and Postret_2

Note 18 - Pension and Postretirement Benefits (Tables)	12 Months Ended
	Dec. 31, 2024
Notes Tables
Changes in Projected Benefit Obligations, Fair Value of Plan Assets, and Funded Status of Plan [Table Text Block]	Pension Plan and SERP Postretirement Plan 2024 2023 2024 2023 Change in benefit obligation: Benefit obligation at January 1 $ 317.8 $ 330.9 $ 4.1 $ 4.2 Interest cost 16.1 17.1 0.1 0.2 Actuarial (gain) loss (7.8 ) (0.8 ) (0.4 ) 1.1 Plan participants’ contributions — — 1.4 1.3 Benefits paid (28.1 ) (29.4 ) (2.2 ) (2.7 ) Benefit obligation at December 31 $ 298.0 $ 317.8 $ 3.0 $ 4.1 Accumulated benefit obligation at December 31 $ 298.0 $ 317.8 Change in plan assets: Fair value of plan assets at January 1 $ 425.9 $ 406.3 $ 8.1 $ 7.6 Actuarial gain 11.0 47.3 — 0.4 Employer contributions, net 0.7 1.7 0.8 1.5 Plan participants’ contributions — — 1.4 1.3 Benefits paid (28.1 ) (29.4 ) (2.2 ) (2.7 ) Fair value of plan assets at December 31 $ 409.5 $ 425.9 $ 8.1 $ 8.1 Funded status at December 31 $ (111.5 ) $ (108.1 ) $ (5.1 ) $ (4.0 ) Amounts recognized in the consolidated balance sheets consist of: Pension assets, noncurrent (1) $ (120.4 ) $ (117.4 ) $ (5.1 ) $ (4.0 ) Pension, SERP and postretirement benefits, current (2) 0.7 1.0 — — Pension, SERP and postretirement benefits, noncurrent (3) 8.2 8.3 — — Total Pension, SERP and Postretirement benefits $ (111.5 ) $ (108.1 ) $ (5.1 ) $ (4.0 )
Schedule of Defined Benefit Plans Disclosures [Table Text Block]	Pension Plan and SERP Postretirement Plan 2024 2023 2024 2023 Prior service cost $ 2.3 $ 2.4 $ — $ — Actuarial losses 122.6 118.3 3.1 3.6 Accumulated other comprehensive losses, pretax $ 124.9 $ 120.7 $ 3.1 $ 3.6 Quoted Prices Significant in Active Other Markets for Observable Identical Assets Inputs Total (Level 1) (Level 2) December 31, 2024 Equity Managed equity accounts (1) $ 117.0 $ 117.0 $ — Equity — pooled separate account (2) 32.4 — 32.4 Debt Fixed income manager — separately managed account (5) 235.7 — 235.7 Fixed income manager — government securities (3) 8.1 8.1 — Others Cash — pooled separate account (2) 4.5 — 4.5 Global real estate account (4) 19.9 — 19.9 Total $ 417.6 $ 125.1 $ 292.5 December 31, 2023 Equity Managed equity accounts (1) $ 131.6 $ 131.6 $ — Equity — pooled separate account (2) 38.6 — 38.6 Debt Fixed income manager — separately managed account (5) 138.9 — 138.9 Fixed income manager — pooled separate account (2) 89.2 — 89.2 Fixed income manager — government securities (3) 8.1 8.1 — Others Cash — pooled separate account (2) 5.2 — 5.2 Global real estate account (4) 22.4 — 22.4 Total $ 434.0 $ 139.7 $ 294.3
Schedule of Net Benefit Costs [Table Text Block]	Pension Plan and SERP Postretirement Plan 2024 2023 2022 2024 2023 2022 Interest cost $ 16.1 $ 17.1 $ 14.7 $ 0.1 $ 0.2 $ 0.1 Expected return on plan assets (26.8 ) (24.1 ) (28.2 ) (0.2 ) (0.1 ) (0.2 ) Amortization of prior service cost reclassified from accumulated other comprehensive income 0.2 0.2 0.2 — — — Amortization of net actuarial loss reclassified from accumulated other comprehensive income 3.6 5.2 4.0 0.3 0.4 0.2 Net periodic (credit) benefit cost (6.9 ) (1.6 ) (9.3 ) 0.2 0.5 0.1 Less: Amortization of prior service cost reclassified from accumulated other comprehensive income (0.1 ) (0.2 ) (0.2 ) — — — Less: Amortization of actuarial loss reclassified from accumulated other comprehensive losses (0.1 ) (0.1 ) (0.2 ) — — — Less: Net loss recognized reclassified from accumulated other comprehensive losses (3.5 ) (5.1 ) (3.8 ) (0.3 ) (0.4 ) (0.2 ) Actuarial loss (gain) 7.9 (24.3 ) 53.5 (0.2 ) 0.8 1.0 Total recognized in other comprehensive income 4.2 (29.7 ) 49.3 (0.5 ) 0.4 0.8 Total recognized in net periodic benefit credit and other comprehensive (income) loss $ (2.7 ) $ (31.3 ) $ 40.0 $ (0.3 ) $ 0.9 $ 0.9
Defined Benefit Plan, Assumptions [Table Text Block]	Pension Plan and SERP Postretirement Plan Weighted-average assumptions used to determine benefit obligations: 2024 2023 2024 2023 Discount rate 5.64 % 5.37 % 5.17 % 4.75 % Expected return on plan assets 6.50 % 6.50 % 1.75 % 1.75 % Cash balance interest credit rate 5.42 % 4.43 % N/A Weighted-average assumptions used to determine net periodic benefit (credit) cost: 2024 2023 2022 2024 2023 2022 Discount rate 5.37 % 5.48 % 2.75 % 4.75 % 5.25 % 2.25 % Expected return on plan assets 6.50 % 6.25 % 6.25 % 1.75 % 1.75 % 1.75 % Cash balance interest credit rate 5.42 % 4.43 % 2.57 % N/A
Schedule of Expected Benefit Payments [Table Text Block]	Pension Plan Postretirement and SERP Plan Gross Gross Medicare Net Benefit Benefit Subsidy Benefit Amount Amount Payments Amount 2025 $ 29.0 $ 0.6 $ — $ 0.6 2026 $ 28.6 $ 0.5 $ — $ 0.5 2027 $ 28.7 $ 0.4 $ — $ 0.4 2028 $ 27.4 $ 0.4 $ — $ 0.4 2029 $ 26.1 $ 0.3 $ — $ 0.3 2030 and thereafter $ 118.9 $ 1.1 $ — $ 1.1
Schedule of Allocation of Plan Assets [Table Text Block]	Target Percentage of Plan Assets Asset Category Allocation 2024 2023 Equity securities 40.0 % 36.5 % 40.0 % Debt securities 60.0 57.5 53.5 Real Estate — 4.9 5.3 Other — 1.1 1.2 Total 100.0 % 100.0 % 100.0 %

Note 19 - Segment Reporting (Ta

Note 19 - Segment Reporting (Tables)	12 Months Ended
	Dec. 31, 2024
Notes Tables
Schedule of Segment Reporting Information, by Segment [Table Text Block]	2022 Insurance Energy and Specialized Markets Financial Services Total Revenues $ 2,437.0 $ 22.4 $ 37.6 $ 2,497.0 Expenses: Cost of revenues (exclusive of items shown separately below) (781.9 ) (19.1 ) (23.6 ) (824.6 ) Selling, general and administrative (347.4 ) (26.7 ) (7.4 ) (381.5 ) Other operating (loss) gain - 450.0 (95.8 ) 354.2 Investment income (loss) (4.7 ) (0.4 ) (0.2 ) (5.3 ) EBITDA from discontinued operations of the Energy business - (117.9 ) - (117.9 ) EBITDA $ 1,303.0 $ 308.3 $ (89.4 ) $ 1,521.9 EBITDA from discontinued operations of the Energy business 117.9 Depreciation and amortization of fixed assets (164.2 ) Amortization of intangible assets (74.4 ) Interest expense (138.8 ) Provision for income taxes (220.3 ) Income (loss) from discontinued operations (87.8 ) Net income $ 954.3
Long-Lived Assets by Geographic Areas [Table Text Block]	2024 2023 Long-lived assets: U.S. $ 2,303.1 $ 2,455.7 U.K. 589.4 597.9 Other countries 460.6 502.4 Total long-lived assets $ 3,353.1 $ 3,556.0

Schedule II - Valuation and Q_2

Schedule II - Valuation and Qualifying Accounts and Reserves (Tables)	12 Months Ended
	Dec. 31, 2024
Notes Tables
Valuation Allowances and Reserves [Table Text Block]	Balance at Charged to Beginning Costs and Deductions— Balance at Description of Year Expenses (1) Write-offs (2) End of Year Year ended December 31, 2024 Allowance for doubtful accounts $ 15.1 $ 13.3 $ (5.9 ) $ 22.5 Valuation allowance for income taxes $ 5.6 $ 1.1 $ (2.5 ) $ 4.2 Year ended December 31, 2023 Allowance for doubtful accounts $ 14.3 $ 8.7 $ (7.9 ) $ 15.1 Valuation allowance for income taxes $ 45.3 $ 1.2 $ (40.9 ) $ 5.6 Year ended December 31, 2022 Allowance for doubtful accounts $ 15.4 $ 6.4 $ (7.5 ) $ 14.3 Valuation allowance for income taxes $ 38.3 $ 41.2 $ (34.2 ) $ 45.3

Note 2 - Basis of Presentatio_2

Note 2 - Basis of Presentation and Summary of Significant Accounting Policies (Details Textual) $ in Millions	12 Months Ended
	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Unbilled Receivables, Expected Billing Period (Year)	1 year
Nonqualified Stock Option, Contractual Term (Year)	10 years
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)	4 years
Research and Development Expense	$ 35.3	$ 36.8	$ 43.1
Advertising Expense	$ 9.1	$ 11.9	$ 14.7
Restricted Stock [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)	4 years
First Option to Extend Corporate Headquarters [Member]
Lessee, Leases, Number of Extensions	1
Lessee, Lease, Extension Lease Term (Year)	10 years
Second Option to Extend Corporate Headquarters [Member]
Lessee, Leases, Number of Extensions	2
Lessee, Lease, Extension Lease Term (Year)	5 years
Software Development [Member] | Minimum [Member]
Property, Plant and Equipment, Useful Life (Year)	3 years

Note 4 - Accounts Receivable -

Note 4 - Accounts Receivable - Accounts Receivable, Net (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Receivables	$ 456.9	$ 349.3
Less allowance for doubtful accounts	(22.5)	(15.1)
Accounts receivable, net	434.4	334.2
Billed Revenues [Member]
Receivables	421.4	317.1
Unbilled Revenues [Member]
Receivables	$ 35.5	$ 32.2

Note 5 - Concentration of Cre_2

Note 5 - Concentration of Credit Risk (Details Textual) $ in Thousands	12 Months Ended
	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022
Cash, FDIC Insured Amount	$ 250	$ 250
Number Of Banks	5	7
Cash Balances On Deposit FDIC Insured Amount	$ 129,000	$ 171,800
Cash Deposit with Foreign Banks	$ 161,000	$ 129,200
Revenue Benchmark [Member] | Customer Concentration Risk [Member]
Number of Customers	50	50	50
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Top Fifty Customers [Member]
Concentration Risk, Percentage	43%	45%	41%
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Individual Customer [Member]
Number of Customers	0	0	0
Concentration Risk, Percentage	3%	3%	3%
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Individual Customer [Member]
Number of Customers	0	0
Concentration Risk, Percentage	4%	5%

Note 6 - Revenues (Details Text

Note 6 - Revenues (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Contract with Customer, Asset, after Allowance for Credit Loss, Total	$ 0	$ 0
Revenue, Remaining Performance Obligation, Amount	$ 451,100	$ 375,100
Revenue Remaining Performance Obligation, Current Percentage	98%	99%
Contract with Customer, Liability, Noncurrent	$ 78,500	$ 76,400

Note 6 - Revenues - Disaggregat

Note 6 - Revenues - Disaggregated Revenues (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Revenues	$ 2,881.7	$ 2,681.4	$ 2,497
UNITED STATES
Revenues	2,386.1	2,238.3	2,120.1
UNITED KINGDOM
Revenues	214.4	190.1	169.5
Other Countries [Member]
Revenues	281.2	253	207.4
Specialized Markets [Member]
Revenues	0	0	22.4
Insurance [Member]
Revenues	2,881.7	2,681.4	2,437
Insurance [Member] | Underwriting [Member]
Revenues	2,024.3	1,892.7	1,734.5
Insurance [Member] | Claims [Member]
Revenues	857.4	788.7	702.5
Financial Services [Member]
Revenues	$ 0	$ 0	$ 37.6

Note 6 - Revenues - Summary of

Note 6 - Revenues - Summary of Change in Contract Liabilities (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Contract Liabilities	$ 375.1	$ 321.7
Revenue	(2,881.7)	(2,681.4)
Additions to contract liabilities	2,956.9	2,737.8
Foreign currency translation adjustment	0.8	(3)
Contract Liabilities	$ 451.1	$ 375.1

Note 7 - Fair Value Measureme_3

Note 7 - Fair Value Measurements (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Equity Securities without Readily Determinable Fair Value, Amount	$ 195,300	$ 200,900
Equity Method Investments	27,000	30,500
Provision for Credit Loss on Investments	0	0
Stock of Non-Public Company [Member]
Proceeds from Sale of Equity Method Investments	112,100
Gain (Loss) on Sale of Investments	100,600
Registered Investment Companies [Member] | Fair Value, Inputs, Level 1 [Member] | Fair Value, Recurring [Member]
Investments, Fair Value Disclosure	$ 1,200	$ 1,200

Note 7 - Fair Value Measureme_4

Note 7 - Fair Value Measurements - Long-term Debt (Details) - Fair Value, Inputs, Level 2 [Member] - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Reported Value Measurement [Member]
Senior Notes (Note 15)	$ 3,021	$ 2,833.7
Estimate of Fair Value Measurement [Member]
Senior Notes (Note 15)	$ 2,866.5	$ 2,735.3

Note 8 - Leases (Details Textua

Note 8 - Leases (Details Textual) $ in Millions		12 Months Ended
	Aug. 16, 2024 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Finance Lease, Right-of-Use Asset, after Accumulated Amortization		$ 47.7	$ 41.2
Finance Lease, Liability		41.4	34.5
Increase (Decrease) in Operating Lease Right of Use Assets		(28.8)	(26.8)	$ (46.6)
Increase (Decrease) in Operating Lease Liabilities		(35)	(27.1)	(43.9)
Gain (Loss) on Lease Modification		1.9	0	0
Gain (Loss) on Disposition of Assets		$ (6.5)	$ (3.8)	$ (1.1)
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]		Debt, Current	Debt, Current
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]		Long-term debt	Long-term debt
First Option to Extend Corporate Headquarters [Member]
Lessee, Leases, Number of Extensions		1
Lessee, Lease, Extension Lease Term (Year)		10 years
Second Option to Extend Corporate Headquarters [Member]
Lessee, Leases, Number of Extensions		2
Lessee, Lease, Extension Lease Term (Year)		5 years
Jersey City Office [Member]
Operating Lease, Lease Modification, Number of Floors Vacated	2
Increase (Decrease) in Operating Lease Right of Use Assets	$ 11.7
Increase (Decrease) in Operating Lease Liabilities	13.6
Gain (Loss) on Lease Modification	1.9
Gain (Loss) on Disposition of Assets	$ 7.6

Note 8 - Leases - Lease Cost an

Note 8 - Leases - Lease Cost and Other Information (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2024	Dec. 31, 2023
Operating lease cost	[1]	$ 32.7	$ 33.9
Sublease income		(4)	(1.7)
Depreciation of finance lease assets	[2]	19.4	14.4
Interest on finance lease liabilities	[3]	2.3	1
Total lease cost		50.4	47.6
Operating cash outflows from operating leases		(34.5)	(34.9)
Operating cash outflows from finance leases		(2.3)	(1)
Financing cash outflows from finance leases		$ (21.9)	$ (15.7)
[1]Included in "Cost of revenues" and "Selling, general and administrative" expenses in our accompanying condensed consolidated statements of operations[2]Included in "Depreciation and amortization of fixed assets" in our accompanying condensed consolidated statements of operations[3]Included in "Interest expense" in our accompanying condensed consolidated statements of operations

Note 8 - Leases - Weighted-aver

Note 8 - Leases - Weighted-average Remaining Lease Terms and Weighted-average Discount Rates (Details)	Dec. 31, 2024	Dec. 31, 2023
Weighted-average remaining lease term - operating leases (in years) (Year)	7 years	8 years 2 months 12 days
Weighted-average remaining lease term - finance leases (in years) (Year)	3 years	3 years 1 month 6 days
Weighted-average discount rate - operating leases	4.20%	4%
Weighted-average discount rate - finance leases	4.20%	4.20%

Note 8 - Leases - Maturities of

Note 8 - Leases - Maturities of Lease Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
2025, operating leases	$ 32.8
2025, finance leases	22.1
2026, operating leases	31.1
2026, finance leases	10.7
2027, operating leases	30.5
2027, finance leases	9
2028, operating leases	29.3
2028, finance leases	4.8
2029, operating leases	28
2029, finance leases	0
2030 and thereafter, operating leases	61.5
2030 and thereafter, finance lease	0
Total lease payments, operating leases	213.2
Total lease payments, finance leases	46.6
Less: Amount representing interest, operating leases	(28.5)
Less: Amount representing interest, finance leases	(5.2)
Present value of total lease payments, operating leases	184.7
Present value of total lease payments, finance leases	$ 41.4	$ 34.5

Note 9 - Fixed Assets (Details

Note 9 - Fixed Assets (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Depreciation, Depletion and Amortization, Nonproduction	$ 233,600	$ 206,800	$ 164,200
Capitalized Computer Software, Amortization	193,500	165,500	116,600
Unamortized Costs Capitalized	0	1,200
Impairment of Long-Lived Assets to be Disposed of	7,600	0
Asset Impairment Charges	7,600	0	377,400
Software and Software Development Costs [Member]
Depreciation, Depletion and Amortization, Nonproduction	1,200	4,800	$ 7,600
Unamortized Costs Capitalized	$ 497,400	$ 482,400

Note 9 - Fixed Assets - Summary

Note 9 - Fixed Assets - Summary of Fixed Assets (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Cost	$ 1,783.6	$ 1,596.6
Accumulated Depreciation and Amortization	(1,177.7)	(991.7)
Net	605.9	604.9
Furniture and Office Equipment [Member]
Cost	164.2	178.5
Accumulated Depreciation and Amortization	(144.8)	(156.7)
Net	$ 19.4	$ 21.8
Furniture and Office Equipment [Member] | Minimum [Member]
Useful Life (Year)	3 years	3 years
Furniture and Office Equipment [Member] | Maximum [Member]
Useful Life (Year)	10 years	10 years
Leasehold Improvements [Member]
Cost	$ 101.4	$ 116.5
Accumulated Depreciation and Amortization	(62.3)	(63)
Net	$ 39.1	$ 53.5
Purchased Software [Member]
Useful Life (Year)	3 years	3 years
Cost	$ 58.2	$ 59.9
Accumulated Depreciation and Amortization	(55.6)	(55.2)
Net	2.6	4.7
Software Development [Member]
Cost	1,334.8	1,136.6
Accumulated Depreciation and Amortization	(837.4)	(653)
Net	$ 497.4	483.6
Software Development [Member] | Minimum [Member]
Useful Life (Year)	3 years
Leased Equipment [Member]
Cost	$ 125	105.1
Accumulated Depreciation and Amortization	(77.6)	(63.8)
Net	$ 47.4	$ 41.3
Leased Equipment [Member] | Minimum [Member]
Useful Life (Year)	3 years	3 years
Leased Equipment [Member] | Maximum [Member]
Useful Life (Year)	4 years	4 years

Note 10 - Acquisitions (Details

Note 10 - Acquisitions (Details Textual) - USD ($)					1 Months Ended	12 Months Ended
	Jan. 08, 2024	Apr. 20, 2023	Mar. 01, 2022	Feb. 11, 2022	Feb. 28, 2023	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Feb. 01, 2023	Feb. 01, 2022
Goodwill						$ 1,726,600,000	$ 1,760,800,000
Escrow Release						3,800	0
Current Portion of Escrow						0	3,900,000
Business Combination, Contingent Consideration, Liability, Current						0	10,000,000
Business Combination, Contingent Consideration, Liability, Noncurrent						2,200,000	2,100,000
Rocket Enterprise Solutions GmbH [Member]
Business Acquisition, Percentage of Voting Interests Acquired	100%
Business Combination, Consideration Transferred	$ 10,100,000
Goodwill	10,600,000
Business Combination, Acquisition Related Costs						$ 300,000
Rocket Enterprise Solutions GmbH [Member] | Deferred Payments [Member]
Business Combination, Consideration Transferred, Liabilities Incurred	2,200,000
Rocket Enterprise Solutions GmbH [Member] | Holdback Payments [Member]
Business Combination, Consideration Transferred, Liabilities Incurred	$ 300,000
Krug Sachverständigen GmbH [Member]
Business Combination, Consideration Transferred		$ 43,300,000
Goodwill							33,100,000
Business Combination, Consideration Transferred, Indemnity Escrows		$ 3,800,000
Mavera [Member]
Business Acquisition, Percentage of Voting Interests Acquired										100%
Business Combination, Consideration Transferred					$ 28,300,000
Business Combination, Indemnification Assets, Amount as of Acquisition Date									$ 4,200,000
Goodwill, Acquired During Period							55,900,000
The 2023 Acquisitions [Member]
Business Combination, Acquisition Related Costs							$ 2,500,000
Opta Information Intelligence Corp. [Member]
Business Acquisition, Percentage of Voting Interests Acquired			100%
Business Combination, Consideration Transferred			$ 217,500,000
Goodwill								$ 141,100,000
Business Combination, Indemnification Assets, Amount as of Acquisition Date			$ 800,000
Infutor Data Solutions, LLC [Member]
Business Acquisition, Percentage of Voting Interests Acquired				100%
Business Combination, Consideration Transferred				$ 220,700,000
Goodwill								140,300,000
Business Combination, Working Capital Escrow				1,500,000
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High				$ 25,000,000
The 2022 Acquisitions [Member]
Goodwill								284,400,000
Business Combination, Acquisition Related Costs								1,800,000
Business Acquisition, Goodwill Non-tax Deductible, Amount								$ 144,500,000

Note 10 - Acquisitions - Assets

Note 10 - Acquisitions - Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Goodwill	$ 1,726.6	$ 1,760.8
Less: cash acquired	$ 1.8	8	$ 17.4
Krug Sachverständigen GmbH [Member]
Cash and cash equivalents		7
Accounts receivable		1.8
Other current assets		3.8
Fixed assets		0.2
Operating lease right-of-use assets, net		0
Intangible assets		15.1
Goodwill		33.1
Total assets acquired		61
Accounts payable and accrued liabilities		5.8
Operating lease liabilities		0
Deferred income tax, net		4.8
Other noncurrent liabilities		0.1
Total liabilities assumed		10.7
Net assets acquired		50.3
Less: cash acquired		7
Net cash purchase price		43.3
Net cash purchase price		43.3
Acquisition, Others [Member]
Cash and cash equivalents		1	0
Accounts receivable		0.8	0
Other current assets		0.1	0.1
Fixed assets		0.1	0.3
Operating lease right-of-use assets, net		0.2	0
Intangible assets		18.4	2.3
Goodwill		22.8	3
Total assets acquired		43.4	5.7
Accounts payable and accrued liabilities		2.1
Operating lease liabilities		0.1	0
Deferred income tax, net		3.9	0.5
Other noncurrent liabilities		1.4	0.2
Total liabilities assumed		7.5	0.9
Net assets acquired		35.9	4.8
Less: cash acquired		1	0
Net cash purchase price		34.9	4.8
Other assets			0
Current liabilities			0.1
Deferred revenues			0.1
Net cash purchase price		34.9	4.8
Acquisition 2023 [Member]
Cash and cash equivalents		8
Accounts receivable		2.6
Other current assets		3.9
Fixed assets		0.3
Operating lease right-of-use assets, net		0.2
Intangible assets		33.5
Goodwill		55.9
Total assets acquired		104.4
Accounts payable and accrued liabilities		7.9
Operating lease liabilities		0.1
Deferred income tax, net		8.7
Other noncurrent liabilities		1.5
Total liabilities assumed		18.2
Net assets acquired		86.2
Less: cash acquired		8
Net cash purchase price		78.2
Net cash purchase price		$ 78.2
Opta Information Intelligence Corp. [Member]
Cash and cash equivalents			0.4
Accounts receivable			5.2
Other current assets			1.3
Fixed assets			1.5
Operating lease right-of-use assets, net			1.1
Intangible assets			87
Goodwill			141.1
Total assets acquired			237.6
Operating lease liabilities			1.1
Deferred income tax, net			13.5
Other noncurrent liabilities			0
Total liabilities assumed			19.7
Net assets acquired			217.9
Less: cash acquired			0.4
Net cash purchase price			217.5
Other assets			0
Current liabilities			4.9
Deferred revenues			0.2
Net cash purchase price			217.5
Infutor Data Solutions, LLC [Member]
Cash and cash equivalents			17
Accounts receivable			10.7
Other current assets			3.8
Fixed assets			0.9
Operating lease right-of-use assets, net			2.3
Intangible assets			83.4
Goodwill			140.3
Total assets acquired			258.5
Operating lease liabilities			3.3
Deferred income tax, net			0
Other noncurrent liabilities			0
Total liabilities assumed			20.8
Net assets acquired			237.7
Less: cash acquired			17
Net cash purchase price			220.7
Other assets			0.1
Current liabilities			14.4
Deferred revenues			3.1
Net cash purchase price			220.7
2022 Acquisition [Member]
Cash and cash equivalents			17.4
Accounts receivable			15.9
Other current assets			5.2
Fixed assets			2.7
Operating lease right-of-use assets, net			3.4
Intangible assets			172.7
Goodwill			284.4
Total assets acquired			501.8
Operating lease liabilities			4.4
Deferred income tax, net			14
Other noncurrent liabilities			0.2
Total liabilities assumed			41.4
Net assets acquired			460.4
Less: cash acquired			17.4
Net cash purchase price			443
Other assets			0.1
Current liabilities			19.4
Deferred revenues			3.4
Net cash purchase price			$ 443

Note 10 - Acquisitions - Amount

Note 10 - Acquisitions - Amounts Assigned to Intangible Assets (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Total intangible assets	$ 33.5
The 2021 Acquisitions [Member]
Total intangible assets		$ 172.7
Technology-Based Intangible Assets [Member]
Weighted average useful life (Year)	5 years
Total intangible assets	$ 9.9
Technology-Based Intangible Assets [Member] | The 2021 Acquisitions [Member]
Weighted average useful life (Year)		6 years
Total intangible assets		$ 48.5
Marketing-Related Intangible Assets [Member]
Weighted average useful life (Year)	2 years
Total intangible assets	$ 0.5
Marketing-Related Intangible Assets [Member] | The 2021 Acquisitions [Member]
Weighted average useful life (Year)		4 years
Total intangible assets		$ 2
Customer-Related Intangible Assets [Member]
Weighted average useful life (Year)	13 years
Total intangible assets	$ 23.1
Customer-Related Intangible Assets [Member] | The 2021 Acquisitions [Member]
Weighted average useful life (Year)		13 years
Total intangible assets		$ 122.2

Note 11 - Dispositions and Di_3

Note 11 - Dispositions and Discontinued Operations (Details Textual) - USD ($) $ in Thousands		12 Months Ended
	Feb. 01, 2023	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Impairment of Long-Lived Assets to be Disposed of		$ 7,600	$ 0
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal, Statement of Income or Comprehensive Income [Extensible Enumeration]		Other Operating Income (Expense), Net
Discontinued Operations, Held-for-Sale [Member] | AER [Member]
Disposal Group, Including Discontinued Operation, Consideration		$ 7,100
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal		(12,100)
Discontinued Operations, Held-for-Sale [Member] | Energy Business [Member]
Disposal Group, Including Discontinued Operation, Consideration	$ 3,100,000
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal	(128,400)
Proceeds from Sales of Business, Affiliate and Productive Assets	3,066,400
Disposal Group, Including Discontinued Operation, Contingent Cash Consideration	200,000
Impairment of Long-Lived Assets to be Disposed of	$ 303,700	$ 0	0	$ 303,700
Discontinued Operation, Amount of Adjustment to Prior Period Gain (Loss) on Disposal, before Income Tax			$ (2,700)

Note 11 - Dispositions and Di_4

Note 11 - Dispositions and Discontinued Operations - Divestitures and Business Held for Sale (Details) - USD ($) $ in Thousands		12 Months Ended
	Feb. 01, 2023	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Impairment of Long-Lived Assets to be Disposed of		$ 7,600	$ 0
Energy Business [Member] | Discontinued Operations, Held-for-Sale [Member]
Revenues		0	46,800	$ 537,300
Cost of revenues (exclusive of items shown separately below)		0	18,200	207,400
Selling, general and administrative		0	33,200	117,200
Depreciation and amortization of fixed assets		0	0	32,900
Amortization of intangible assets		0	0	68,500
Impairment of Long-Lived Assets to be Disposed of	$ 303,700	0	0	303,700
Other operating loss		0	131,100	33,900
Total operating expenses		0	182,500	763,600
Operating (loss) income		0	(135,700)	(226,300)
Investment (loss) income and others, net		0	(5,700)	7,000
Total other (expense) income, net		0	(5,700)	7,000
Loss from discontinued operations before income taxes		0	(141,400)	(219,300)
Income tax benefit (expense)		6,800	(12,600)	131,500
Income (loss) from discontinued operations, net of income taxes		6,800	(154,000)	(87,800)
Depreciation and amortization of fixed assets		0	0	32,900
Amortization of intangible assets		0	0	68,500
Operating lease right-of-use assets, net		0	100	7,600
Capital expenditures		0	(6,500)	(72,600)
Fixed assets included in accounts payable and accrued liabilities		$ 0	$ 0	$ 3,000

Note 12 - Goodwill and Intang_3

Note 12 - Goodwill and Intangible Assets (Details Textual) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Amortization of Intangible Assets	$ 72.3	$ 74.6	$ 74.4

Note 12 - Goodwill and Intang_4

Note 12 - Goodwill and Intangible Assets - Summary of Changes in Goodwill (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Goodwill	$ 1,760.8
Goodwill	1,726.6	$ 1,760.8
Insurance [Member]
Goodwill	1,760.8	1,676
Goodwill, Acquired During Period	10.6	55.9
Purchase accounting reclassifications	0.3	(0.1)
Foreign currency translation adjustment	(29.3)	29
Dispositions	(15.8)
Goodwill	$ 1,726.6	$ 1,760.8

Note 12 - Goodwill and Intang_5

Note 12 - Goodwill and Intangible Assets - Intangible Assets and Related Accumulated Amortization (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Cost	$ 951.9	$ 975.2
Accumulated amortization	(559.5)	(503.5)
Net	$ 392.4	$ 471.7
Technology-Based Intangible Assets [Member]
Weighted average useful life (Year)	8 years	8 years
Cost	$ 364.9	$ 370.2
Accumulated amortization	(285.3)	(261.2)
Net	$ 79.6	$ 109
Marketing-Related Intangible Assets [Member]
Weighted average useful life (Year)	6 years	6 years
Cost	$ 37.8	$ 42.7
Accumulated amortization	(35.5)	(38.7)
Net	$ 2.3	$ 4
Contract-Based Intangible Assets [Member]
Weighted average useful life (Year)	6 years	6 years
Cost	$ 5	$ 5
Accumulated amortization	(5)	(5)
Net	$ 0	$ 0
Customer-Related Intangible Assets [Member]
Weighted average useful life (Year)	13 years	13 years
Cost	$ 529.1	$ 542.1
Accumulated amortization	(224)	(190.7)
Net	$ 305.1	$ 351.4
Database [Member]
Weighted average useful life (Year)	8 years	8 years
Cost	$ 15.1	$ 15.2
Accumulated amortization	(9.7)	(7.9)
Net	$ 5.4	$ 7.3

Note 12 - Goodwill and Intang_6

Note 12 - Goodwill and Intangible Assets - Estimated Amortization Expense (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
2025	$ 62
2026	60.1
2027	52.1
2028	45.1
2029	40.3
2030 and thereafter	132.8
Total	$ 392.4	$ 471.7

Note 13 - Income Taxes (Details

Note 13 - Income Taxes (Details Textual) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Deferred Tax Liabilities, Net	$ 157.3	$ 179.3
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	0.7	$ 0.2	$ 0.4
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit	$ 0.9
Domestic Tax Jurisdiction [Member]
Open Tax Year	2020 2021 2022 2023 2024
Foreign Tax Jurisdiction [Member]
Open Tax Year	2020 2021 2022 2023 2024
State and Local Jurisdiction [Member]
Open Tax Year	2020 2021 2022 2023 2024

Note 13 - Income Taxes - Domest

Note 13 - Income Taxes - Domestic and Foreign Income (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
U.S.	$ 1,201.6	$ 1,021.9	$ 1,277.1
Foreign	27	5.3	(14.7)
Total income before income taxes	$ 1,228.6	$ 1,027.2	$ 1,262.4

Note 13 - Income Taxes - Provis

Note 13 - Income Taxes - Provision for Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Federal	$ 223	$ 226.8	$ 247.8
State and local	67.5	52	64.7
Foreign	7.9	9	1.1
Total current provision for income taxes	298.4	287.8	313.6
Federal	(17.2)	(23.4)	(43.3)
State and local	(1.4)	(3.4)	(11.2)
Foreign	(1.9)	(2.2)	(38.8)
Total deferred provision for income taxes	(20.5)	(29)	(93.3)
Provision for income taxes	$ 277.9	$ 258.8	$ 220.3

Note 13 - Income Taxes - Effect

Note 13 - Income Taxes - Effective Tax Rate on Income from Continuing Operations (Details)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Federal statutory rate	21%	21%	21%
State and local taxes, net of federal tax benefit	4.30%	3.70%	3.40%
Impact of dispositions	(0.20%)	0%	(3.00%)
UK valuation allowance release	0%	0%	(2.40%)
Global Intangible Low-taxed Income	0.20%	1.30%	0.40%
Stock-based compensation	(1.90%)	(1.80%)	(1.70%)
Other	(0.80%)	1%	(0.20%)
Effective tax rate	22.60%	25.20%	17.50%

Note 13 - Income Taxes - Summar

Note 13 - Income Taxes - Summary of Deferred Tax Assets (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Employee wages and other benefits	$ 47.2	$ 49.9
Lease liabilities	46.3	55.4
Net operating loss carryover	7.6	9.4
Interest expense	30.8	31
Other	16.1	17.1
Total	148	162.8
Less valuation allowance	(4.2)	(5.6)
Deferred tax assets	143.8	157.2
Right of use assets	(40.9)	(48.3)
Fixed assets and intangible assets	(168.6)	(194.1)
Commissions	(19.3)	(18.2)
Pensions	(59.2)	(57)
Other	(13.1)	(18.9)
Deferred tax liabilities	(301.1)	(336.5)
Deferred tax liabilities, net	$ (157.3)	$ (179.3)

Note 13 - Income Taxes - Summ_2

Note 13 - Income Taxes - Summary of Company's Net Operating Loss Carryforwards Expires (Details) $ in Millions	Dec. 31, 2024 USD ($)
Operating loss carryforwards	$ 53
Period One [Member]
Operating loss carryforwards	16.1
Period Two [Member]
Operating loss carryforwards	4.6
Period Three [Member]
Operating loss carryforwards	$ 32.3

Note 13 - Income Taxes - Reconc

Note 13 - Income Taxes - Reconciliation of Beginning and Ending Amount of Unrecognized Tax Benefit (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Unrecognized tax benefit as of January 1	$ 2	$ 3.2	$ 3.4
Gross increase in tax positions in prior period	2.3	0.8	1
Gross decrease in tax positions in prior period	0	0	0
Settlements	0	0	(0.6)
Lapse of statute of limitations	(0.2)	(2)	(0.6)
Unrecognized tax benefit as of December 31	$ 4.1	$ 2	$ 3.2

Note 14 - Composition of Cert_3

Note 14 - Composition of Certain Financial Statement Caption - Accounts Payable and Accrued Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Accrued salaries, benefits and other related costs	$ 143.6	$ 149.4
Escrow liabilities	0	3.9
Accrued interest	20.7	19.1
Trade accounts payable and other accrued expenses	85.5	158.4
Acquisition-related liabilities	0	10
Total accounts payable and accrued liabilities	$ 249.8	$ 340.8

Note 14 - Composition of Cert_4

Note 14 - Composition of Certain Financial Statement Caption - Components of Other Noncurrent Assets (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Pension benefits	$ 125.3	$ 121.4
Other assets - prepaid expenses	87.6	73.2
Investments in nonpublic companies	222.2	231.4
State income tax receivable	0	67.7
Deposits and other	2.8	2.4
Total other noncurrent assets	$ 437.9	$ 496.1

Note 15 - Debt (Details Textual

Note 15 - Debt (Details Textual) - USD ($)		12 Months Ended
	Jun. 07, 2024	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Jun. 05, 2024
Interest Payable, Current		$ 20,700,000	$ 19,100,000
Interest Expense Excluding Earn Out Interest		140,300,000	131,300,000	$ 135,500,000
Gain (Loss) on Extinguishment of Debt		3,600,000	0	0
Payment for Debt Extinguishment or Debt Prepayment Cost		396,400,000	0	$ 0
Letters of Credit Outstanding, Amount		4,600,000	4,600,000
Revolving Credit Facility [Member]
Line of Credit Facility, Maximum Borrowing Capacity		1,000,000,000
Line of Credit Facility, Remaining Borrowing Capacity		$ 995,400,000	$ 995,400,000
The 2034 Senior Notes [Member]
Debt Instrument, Face Amount					$ 600,000,000
Debt Instrument, Interest Rate, Stated Percentage		5.25%			5.25%
Debt Instrument, Unamortized Discount		$ 14,200,000			$ 9,800,000
Debt Issuance Costs, Net					$ 5,600,000
The 4.000% Senior Note [Member]
Long-Term Debt, Gross	$ 500,000,000
Debt Instrument, Interest Rate, Stated Percentage	4%	4%	4%
Debt Instrument, Unamortized Discount	$ 5,200,000		$ 1,800,000
Debt Instrument, Repurchase Amount	$ 400,000,000
Debt Instrument, Redemption Price, Percentage	44.40%
Debt Instrument, Repurchased Price Per One Thousand Face Amount	$ 987.09
Gain (Loss) on Extinguishment of Debt	3,600,000
Payment for Debt Extinguishment or Debt Prepayment Cost	$ 1,600,000
Senior Notes [Member]
Long-Term Debt, Gross		$ 3,050,000,000	$ 2,850,000,000

Note 15 - Debt - Short-term and

Note 15 - Debt - Short-term and Long-term Debt (Details) - USD ($) $ in Millions		Dec. 31, 2024	Dec. 31, 2023
Finance lease liabilities, current	[1]	$ 14.5	$ 14.5
Short-term debt and current portion of long-term debt		514.2	14.5
Finance lease liabilities, noncurrent	[1]	26.9	20
Syndicated revolving credit facility debt issuance costs		(1.3)	(1.5)
Long-term debt		2,546.9	2,852.2
Total debt		3,061.1	2,866.7
The 4.000% Senior Note [Member]
4.000% senior notes, less unamortized discount and debt issuance costs of $(0.3)		499.7	0
Long-term debt		0	898.2
The 4.125% Senior Note [Member]
Long-term debt		606.3	607.8
The 5.500% Senior Note [Member]
Long-term debt		346.3	346.2
The 3.625% Senior Note [Member]
Long-term debt		490.8	490.4
The 5.750% Senior Notes [Member]
Long-term debt		492.1	491.1
The 2034 Senior Notes [Member]
Long-term debt		585.8	0
Line of Credit [Member]
Syndicated revolving credit facility		$ 0	$ 0
[1]Refer to Note 8. Leases

Note 15 - Debt - Short-term a_2

Note 15 - Debt - Short-term and Long-term Debt (Details) (Parentheticals) - USD ($) $ in Millions	Dec. 31, 2024	Jun. 07, 2024	Jun. 05, 2024	Dec. 31, 2023
The 4.000% Senior Note [Member]
Unamortized discount, current	$ 0.3
Interest rate	4%	4%		4%
Unamortized discount		$ 5.2		$ 1.8
The 4.125% Senior Note [Member]
Interest rate	4.125%			4.125%
Unamortized discount	$ 6.3			$ 7.8
The 5.500% Senior Note [Member]
Interest rate	5.50%			5.50%
Unamortized discount	$ 3.7			$ 3.8
The 3.625% Senior Note [Member]
Interest rate	3.625%			3.625%
Unamortized discount	$ 9.2			$ 9.6
The 5.750% Senior Notes [Member]
Interest rate	5.75%			5.75%
Unamortized discount	$ 7.9			$ 8.9
The 2034 Senior Notes [Member]
Interest rate	5.25%		5.25%
Unamortized discount	$ 14.2		$ 9.8

Note 15 - Debt - Debt Maturitie

Note 15 - Debt - Debt Maturities (Details) $ in Millions	Dec. 31, 2024 USD ($)
2025, debt	$ 520.4
2026, debt	9.3
2027, debt	7.6
2028, debt	4
2029, debt	600
2030 and thereafter, debt	1,950
Total, debt	$ 3,091.3

Note 16 - Stockholders' Equit_2

Note 16 - Stockholders' Equity (Details Textual) - USD ($) $ / shares in Units, $ in Millions							1 Months Ended					3 Months Ended					12 Months Ended
	Nov. 12, 2024	Aug. 31, 2024	Aug. 07, 2024	Jun. 13, 2024	Mar. 13, 2024	Dec. 14, 2023	Jan. 31, 2025	Oct. 31, 2024	Jul. 31, 2024	Apr. 30, 2024	Feb. 29, 2024	Mar. 31, 2025	Dec. 31, 2024	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Common Stock, Shares Authorized (in shares)													2,000,000,000				2,000,000,000	2,000,000,000
Share Price (in dollars per share)													$ 275.43				$ 275.43	$ 238.86	$ 176.42
Preferred Stock, Shares Authorized (in shares)													80,000,000				80,000,000
Preferred Stock, Par or Stated Value Per Share (in dollars per share)													$ 0.001				$ 0.001
Preferred Stock, Shares Issued (in shares)													0				0	0
Common Stock, Dividends, Per Share, Declared (in dollars per share)													$ 0.39	$ 0.39	$ 0.39	$ 0.39
Payments of Dividends																	$ 221.3	$ 196.8	$ 195.2
Treasury Stock, Shares, Acquired (in shares)																	3,994,244	12,849,921	8,600,963
Treasury Stock, Common, Shares (in shares)													403,588,401				403,588,401	400,694,309
Stock Issued During Period, Shares, Treasury Stock Reissued (in shares)																	1,100,152	1,457,514	1,650,460
Common Stock Issued From Treasury, Weighted Average Price Per Share (in dollars per share)																	$ 23.4	$ 19.5	$ 14.25
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)																	227,384	540,221	1,350,159
Subsequent Event [Member]
Common Stock, Dividends, Per Share, Declared (in dollars per share)												$ 0.45
Accelerated Share Repurchase ("ASR") Agreement [Member]
Share Repurchase Program, Authorized, Amount	$ 300	$ 400													$ 150	$ 200		$ 250
Treasury Stock, Shares, Acquired (in shares)	885,663		1,302,981	483,761	714,046	873,479		212,635	68,645	148,286	178,227						3,994,244
Shares Acquired, Average Cost Per Share (in dollars per share)	$ 287.92	$ 263.92							$ 271.54	$ 231.93	$ 237.71						$ 263.04
Share Repurchase Program, Remaining Authorized, Amount													$ 591.5				$ 591.5
Accelerated Share Repurchase ("ASR") Agreement [Member] | Subsequent Event [Member]
Treasury Stock, Shares, Acquired (in shares)							189,909
Shares Acquired, Average Cost Per Share (in dollars per share)							$ 278.92

Note 16 - Stockholders' Equit_3

Note 16 - Stockholders' Equity - Computation of Basic and Diluted Earnings Per Share (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Income from continuing operations	$ 950.7	$ 768.4	$ 1,042.1
Less: Net loss (income) attributable to noncontrolling interests	0.7	0.2	(0.4)
Income (loss) from discontinued operations, net of tax	6.8	(154)	(87.8)
Net income attributable to Verisk	$ 958.2	$ 614.6	$ 953.9
Weighted average number of common shares used in basic EPS (in shares)	142,154,655	146,623,989	157,905,718
Potential common shares issuable from stock options and stock-based awards (in shares)	687,606	712,170	1,023,224
Weighted average number of common shares and dilutive potential common shares used in diluted EPS (in shares)	142,842,261	147,336,159	158,928,942

Note 16 - Stockholders' Equit_4

Note 16 - Stockholders' Equity - Summary of Accumulated Other Comprehensive Losses (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Foreign currency translation adjustment	$ 90.1	$ 130.7
Pension and postretirement adjustment, net of tax	(75.1)	(72.5)
Accumulated other comprehensive income	$ 15	$ 58.2

Note 16 - Stockholders' Equit_5

Note 16 - Stockholders' Equity - Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2024		Dec. 31, 2023		Dec. 31, 2022
Foreign currency translation adjustment attributable to Verisk, before tax		$ (40.6)		$ 67		$ (298.9)
Foreign currency translation adjustment attributable to Verisk, tax		0		0		0
Foreign currency translation adjustment attributable to Verisk, after tax		(40.6)		67		(298.9)
Foreign currency translation adjustment attributable to noncontrolling interests, before tax		0.9		0.6		(1.4)
Foreign currency translation adjustment attributable to noncontrolling interests, tax		0		0		0
Foreign currency translation adjustment attributable to noncontrolling interests, after tax		0.9		0.6		(1.4)
Foreign currency translation adjustment, before tax		(39.7)		768.2		(300.3)
Foreign currency translation adjustment, tax		0		0		0
Foreign currency translation adjustment, after tax		(39.7)		768.2		(300.3)
Total other comprehensive loss, before tax		(43.4)		797.5		(350.4)
Total other comprehensive loss, tax		1.1		(7.5)		12.4
Total other comprehensive loss, after tax		(42.3)		790		(338)
Cumulative translation adjustment recognized upon deconsolidation of the Energy business, before tax				700.6
Cumulative translation adjustment recognized upon deconsolidation of the Energy business, tax				0
Cumulative translation adjustment recognized upon deconsolidation of the Energy business, after tax				700.6
Pension and Postretirement Adjustment [Member]
Other comprehensive income (loss), before reclassifications, before tax		0.4		35.1		(45.7)
Other comprehensive income (loss), before reclassifications, tax		0.1		(8.9)		13.5
Other comprehensive income (loss), before reclassifications, after tax		0.5		26.2		(32.2)
Amortization of net actuarial loss and prior service benefit reclassified from accumulated other comprehensive income (losses), before tax (1)		(4.1)	[1]	(5.8)	[1]	(4.4)
Amortization of net actuarial loss and prior service benefit reclassified from accumulated other comprehensive income (losses), tax (1)	[1]	1		1.4		(1.1)
Amortization of net actuarial loss and prior service benefit reclassified from accumulated other comprehensive income (losses), after tax (1)	[1]	(3.1)		(4.4)		(5.5)
Other comprehensive income (loss), before tax		(3.7)		29.3		(50.1)
Other comprehensive income (loss), tax		1.1		(7.5)		12.4
Other comprehensive income (loss), after tax		$ (2.6)		$ 21.8		$ (37.7)
[1]These accumulated other comprehensive loss components, before tax, are included under “Cost of revenues” and “Selling, general and administrative” in our accompanying consolidated statements of operations. These components are also included in the computation of net periodic (benefit) cost (See Note 18. Pension and Postretirement Benefits for additional details).

Note 17 - Compensation Plans (D

Note 17 - Compensation Plans (Details Textual)		12 Months Ended
	Jan. 01, 2019	Dec. 31, 2024 USD ($) $ / shares shares	Dec. 31, 2023 USD ($) $ / shares shares	Dec. 31, 2022 USD ($) $ / shares shares
Share-Based Payment Arrangement, Expense		$ 47,900,000	$ 54,000,000	$ 56,500,000
Number of Service Hours		1,000
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)		4 years
Profit Sharing Contributions		$ 0	0	0
Proceeds from Stock Options Exercised		124,800,000	141,900,000	132,500,000
Share-Based Payment Arrangement, Expense, Tax Benefit		$ 27,300,000	$ 20,600,000	$ 26,500,000
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term (Year)		5 years 6 months	5 years 7 months 6 days
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term (Year)		4 years 6 months	4 years 9 months 18 days
Unrecognized Compensation Cost Related to Nonvested Share Based Compensation Arrangements		$ 75,100,000
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)		2 years 3 months 3 days
Share-based Compensation Arrangement by Share-based Payment Award, Discount from Market Price, Purchase Date		5%
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares) | shares		203,884	211,945	653,802
Share-based Compensation Arrangement by Share-based Payment Award, Maximum Employee Subscription Rate		20%
Share Based Compensation Arrangement By Share Based Payment Award, Percentage Of Short Term Incentive Compensation Available For Payroll Deductions Maximum		50%
Share Based Compensation Arrangement By Share Based Payment Award, Payroll Deductions Amount Maximum		$ 25,000
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value (in dollars per share) | $ / shares		$ 53.75	$ 52.69	$ 42.25
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Target Levels		0%
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Target Levels		200%
The 2021 Incentive Plan [Member]
Common Stock, Capital Shares Reserved for Future Issuance (in shares) | shares		12,813,327
Proceeds from Stock Options Exercised		$ 124,800,000	$ 141,900,000
KSOP [Member]
Maximum Pre Tax Employee Contribution To Saving Plan		$ 23,000	22,500	$ 20,500
Share-based Compensation Arrangement by Share-based Payment Award, Additional Employee Contribution, Minimum Participant Age (Year)		50 years
Additional Pre Tax Certain Eligible Employee Contribution To Saving Plan		$ 7,500	7,500	6,500
Maximum Employee Contribution As Percentage Of Compensation	6%	10%
Percentage Of Employer Contribution	100%
Share-Based Payment Arrangement, Expense		$ 33,800,000	$ 32,400,000	$ 40,000,000
Number of Service Hours			1,000
Employee Stock Purchase Plan [Member] | UK Sharesave Plan [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)		3 years
Common Stock, Capital Shares Reserved for Future Issuance (in shares) | shares		442,363
Share-based Compensation Arrangement by Share-based Payment Award, Discount from Market Price, Purchase Date		5%
Share-Based Compensation Arrangement by Share-Based Payment Award, Shares Issued in Period (in shares) | shares		3,268	5,144
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares) | shares				9,370
Value of Common Stock Issued to Employees Per Share (in dollars per share) | $ / shares		$ 257.05	$ 227.65	$ 178.26
Employee Stock Purchase Plan [Member] | US ESPP [Member]
Common Stock, Capital Shares Reserved for Future Issuance (in shares) | shares		1,160,295
Share-Based Compensation Arrangement by Share-Based Payment Award, Shares Issued in Period (in shares) | shares		16,964	18,636	30,398
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value (in dollars per share) | $ / shares		$ 247.44	$ 209.68	$ 174.66

Note 17 - Compensation Plans -

Note 17 - Compensation Plans - Summary of Stock Activity (Details) - USD ($) $ / shares in Units, $ in Millions		12 Months Ended			24 Months Ended
		Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2024	Dec. 31, 2021
Outstanding beginning balance, options (in shares)		2,712,510	4,023,816	5,067,098	4,023,816
Outstanding beginning balance, options, weighted average exercise price (in dollars per share)		$ 143.91	$ 132.9	$ 115.73	$ 132.9
Outstanding, options, aggregate intrinsic value		$ 218.3	$ 257.6	$ 193.3	$ 218.3	$ 572.6
Number of options, granted (in shares)		203,884	211,945	653,802
Weighted average grant price (in dollars per share)		$ 237.1	$ 185.29	$ 196.64
Dividend reinvestment, options (in shares)		0	0	0
Dividend reinvestment, options, weighted average exercise price (in (in dollars per share)		$ 0	$ 0	$ 0
Exercised or lapsed, options (in shares)		(976,351)	(1,295,815)	(1,435,673)
Exercised or lapsed, options, weighted average exercise price (in dollars per share)		$ 127.8	$ 108.85	$ 92.38
Exercised or lapsed, options, aggregate intrinsic value		$ 124.8	$ 118.1	$ 129.1
Canceled, expired or forfeited, option (in shares)		(29,710)	(227,436)	(261,411)
Canceled, expired or forfeited, options, weighted average exercise price (in dollars per share)		$ 199.81	$ 187.56	$ 181.48
Outstanding, option (in shares)		1,910,333	2,712,510	4,023,816	1,910,333
Outstanding beginning balance, options, weighted average exercise price (in dollars per share)		$ 161.16	$ 143.91	$ 132.9	$ 161.16
Exercisable, options (in shares)		1,345,181	1,947,253		1,345,181
Exercisable, options, weighted average exercise price (in dollars per share)		$ 142.14	$ 127.43		$ 142.14
Exercisable, options, aggregate intrinsic value		$ 179.3	$ 217		$ 179.3
Nonvested, options (in shares)		565,152	765,257	1,321,741	565,152	1,893,506
Expected to vest, options (in shares)		462,867			462,867
Restricted Stock [Member]
Outstanding beginning balance, number of shares (in shares)		291,039	307,575	351,504	307,575
Outstanding beginning balance, weighted average exercise price (in dollars per share)		$ 186.28	$ 182.07	$ 161.33	$ 182.07
Granted, number of shares (in shares)			194,236	201,617	155,304
Granted, weighted average exercise price (in dollars per share)		237.93	$ 185.22	$ 193.33
Dividend reinvestment, number of shares (in shares)			0	0	0
Dividend reinvestment (in dollars per share)		0	$ 0	$ 0
Exercised or lapsed, number of shares (in shares)			(178,602)	(205,407)	(120,287)
Exercised or lapsed, weighted average exercise price (in dollars per share)		188.06	$ 179.39	$ 157.22
Canceled, expired or forfeited, number of shares (in shares)			(32,170)	(40,139)	(18,515)
Canceled, expired or forfeited, weighted average exercise price (in dollars per share)		$ 207.81	$ 183.25	$ 182.35
Outstanding ending balance, number of shares (in shares)		307,541	291,039	307,575	307,541
Outstanding ending balance, weighted average exercise price (in dollars per share)		$ 210.62	$ 186.28	$ 182.07	$ 210.62
Nonvested, number of shares (in shares)		307,541	291,039	307,575	307,541	351,504
Expected, number of shares (in shares)		264,717			264,717
Performance Shares [Member]
Outstanding beginning balance, number of shares (in shares)		181,236	199,494	163,123	199,494
Outstanding beginning balance, weighted average exercise price (in dollars per share)		$ 199.62	$ 195.34	$ 192.99	$ 195.34
Granted, number of shares (in shares)			48,486	111,333	47,838
Granted, weighted average exercise price (in dollars per share)		265.94	$ 212.86	$ 168.63
Dividend reinvestment, number of shares (in shares)			1,142	1,371	1,073
Exercised or lapsed, number of shares (in shares)			(45,997)	(54,927)	(47,821)
Exercised or lapsed, weighted average exercise price (in dollars per share)		$ 210.07	$ 192.93
Canceled, expired or forfeited, number of shares (in shares)			(21,889)	(21,406)	(1,870)
Canceled, expired or forfeited, weighted average exercise price (in dollars per share)			$ 207.27	$ 202.55
Outstanding ending balance, number of shares (in shares)		180,456	181,236	199,494	180,456
Outstanding ending balance, weighted average exercise price (in dollars per share)		$ 205.1	$ 199.62	$ 195.34	$ 205.1
Nonvested, number of shares (in shares)		180,456	181,236	199,494	180,456	163,123
Expected, number of shares (in shares)	[1]	246,313			246,313
[1]Includes estimated performance achievement

Note 17 - Compensation Plans _2

Note 17 - Compensation Plans - Stock Options Granted Weighted Average Assumptions (Details) - $ / shares	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Weighted average grant price (in dollars per share)	$ 237.1	$ 185.29	$ 196.64
Expected volatility	23.51%	27.28%	25.33%
Risk-free interest rate	3.89%	3.77%	1.55%
Expected term in years (Year)	3 years 8 months 12 days	4 years	4 years 2 months 12 days
Dividend yield	0.66%	0.66%	0.60%
Weighted average grant date fair value per stock option (in dollars per share)	$ 53.45	$ 48.14	$ 42.25

Note 17 - Compensation Plans _3

Note 17 - Compensation Plans - Summary of Nonvested Options (Details) - $ / shares	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Nonvested balance (in shares)	765,257	1,321,741	1,893,506
Nonvested balance, Weighted Average Grant-Date Fair Value Per Share (in dollars per share)	$ 39.74	$ 34.65	$ 28.49
Number of options, granted (in shares)	203,884	211,945	653,802
Granted, Weighted Average Grant-Date Fair Value Per Share (in dollars per share)	$ 53.75	$ 52.69	$ 42.25
Number of options, vested (in shares)	(374,279)	(540,993)	(964,156)
Vested, Weighted Average Grant-Date Fair Value Per Share (in dollars per share)	$ 36.67	$ 33.08	$ 22.97
Number of options, cancelled or expired (in shares)	(29,710)	(227,436)	(261,411)
Cancelled or expired, Weighted Average Grant-Date Fair Value Per Share (in dollars per share)	$ 44.34	$ 38.03	$ 35.23
Nonvested balance (in shares)	565,152	765,257	1,321,741
Nonvested balance, Weighted Average Grant-Date Fair Value Per Share (in dollars per share)	$ 46.59	$ 39.74	$ 34.65

Note 18 - Pension and Postret_3

Note 18 - Pension and Postretirement Benefits (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Mar. 31, 2024
Defined Benefit Plan, Prescription Drug Benefit, Accumulated Postretirement Benefit Obligation, Decrease for Subsidy	$ 1,000,000	$ 1,000,000
Defined Benefit Plan, Ultimate Health Care Cost Trend Rate	8.75%
Defined Benefit Plan Ultimate Health Care Cost Decreasing Trend Rate	4.50%
Defined Benefit Plan, Prescription Drug Benefit, Net Periodic Postretirement Benefit Cost, (Increase) Decrease for Subsidy	$ 132,900	$ 118,100	$ 80,700
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	100%
Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage	100%	100%
Equity Securities [Member]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	40%	40%		40%
Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage	36.50%	40%
Debt Securities [Member]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	60%	60%		60%
Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage	57.50%	53.50%
Debt Securities [Member] | Veba [Member]
Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage	100%	100%
Pension Plan And Supplemental Cash Balance Plan [Member]
Defined Benefit Plan, Prescription Drug Benefit, Accumulated Postretirement Benefit Obligation, Decrease for Subsidy	$ 700,000	$ 1,700,000
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year	$ 800,000
Pension Plan and SERP Plan [Member]
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-Term Rate of Return on Plan Assets	6.50%	6.25%	6.25%

Note 18 - Pension and Postret_4

Note 18 - Pension and Postretirement Benefits - Summary of Changes in Benefit Obligations and Plan Assets Amount Recognized (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Fair value of plan assets at January 1		$ 434
Fair value of plan assets at December 31		417.6	$ 434
Pension Plan and SERP Plan [Member]
Benefit obligation		317.8	330.9
Interest cost		16.1	17.1	$ 14.7
Actuarial (gain) loss		(7.8)	(0.8)
Plan participants’ contributions		0	0
Benefits paid		(28.1)	(29.4)
Benefit obligation		298	317.8	330.9
Accumulated benefit obligation at December 31		298	317.8
Fair value of plan assets at January 1		425.9	406.3
Actuarial gain		11	47.3
Employer contributions, net		0.7	1.7
Plan participants’ contributions		0	0
Benefits paid		(28.1)	(29.4)
Fair value of plan assets at December 31		409.5	425.9	406.3
Funded status at December 31		(111.5)	(108.1)
Pension assets, noncurrent (1)	[1]	(120.4)	(117.4)
Pension, SERP and postretirement benefits, current (2)	[2]	0.7	1
Pension, SERP and postretirement benefits, noncurrent (3)	[3]	8.2	8.3
Total Pension, SERP and Postretirement benefits		(111.5)	(108.1)
Other Postretirement Benefits Plan [Member]
Benefit obligation		4.1	4.2
Interest cost		0.1	0.2	0.1
Actuarial (gain) loss		(0.4)	1.1
Plan participants’ contributions		1.4	1.3
Benefits paid		(2.2)	(2.7)
Benefit obligation		3	4.1	4.2
Accumulated benefit obligation at December 31
Fair value of plan assets at January 1		8.1	7.6
Actuarial gain		0	0.4
Employer contributions, net		0.8	1.5
Plan participants’ contributions		1.4	1.3
Benefits paid		(2.2)	(2.7)
Fair value of plan assets at December 31		8.1	8.1	$ 7.6
Funded status at December 31		(5.1)	(4)
Pension assets, noncurrent (1)	[1]	(5.1)	(4)
Pension, SERP and postretirement benefits, current (2)	[2]	0	0
Pension, SERP and postretirement benefits, noncurrent (3)	[3]	0	0
Total Pension, SERP and Postretirement benefits		$ (5.1)	$ (4)
[1]Included in "Other noncurrent assets" in our accompanying consolidated balance sheets[2]Included in "Accounts payable and accrued liabilities" in our accompanying consolidated balance sheets[3]Included in "Other noncurrent liabilities" in our accompanying consolidated balance sheets

Note 18 - Pension and Postret_5

Note 18 - Pension and Postretirement Benefits - Summary of Pre-tax Components of Accumulated Other Comprehensive Losses (Details) - USD ($) $ in Millions		Dec. 31, 2024		Dec. 31, 2023		Dec. 31, 2022
Defined Benefit Plan, Plan Assets, Amount		$ 417.6		$ 434
Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan, Plan Assets, Amount		125.1		139.7
Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan, Plan Assets, Amount		292.5		294.3
Managed Equity Accounts [Member]
Defined Benefit Plan, Plan Assets, Amount	[1]	117		131.6
Managed Equity Accounts [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan, Plan Assets, Amount	[1]	117		131.6
Managed Equity Accounts [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan, Plan Assets, Amount	[1]	0		0
Equity - Pooled Separate Account [Member]
Defined Benefit Plan, Plan Assets, Amount	[2]	32.4		38.6
Equity - Pooled Separate Account [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan, Plan Assets, Amount	[2]	0		0
Equity - Pooled Separate Account [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan, Plan Assets, Amount	[2]	32.4		38.6
Fixed Income Manager - Separately Managed Accounts [Member]
Defined Benefit Plan, Plan Assets, Amount	[3]	235.7		138.9
Fixed Income Manager - Separately Managed Accounts [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan, Plan Assets, Amount	[3]	0		0
Fixed Income Manager - Separately Managed Accounts [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan, Plan Assets, Amount	[3]	235.7		138.9
Fixed Income Manager - Government Securities [Member]
Defined Benefit Plan, Plan Assets, Amount		8.1	[4]	8.1	[2]
Fixed Income Manager - Government Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan, Plan Assets, Amount		8.1	[4]	8.1	[2]
Fixed Income Manager - Government Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan, Plan Assets, Amount		0	[4]	0	[2]
Cash - Pooled Separate Account [Member]
Defined Benefit Plan, Plan Assets, Amount	[2]	4.5		5.2
Cash - Pooled Separate Account [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan, Plan Assets, Amount	[2]	0		0
Cash - Pooled Separate Account [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan, Plan Assets, Amount	[2]	4.5		5.2
Global Real Estate [Member]
Defined Benefit Plan, Plan Assets, Amount	[5]	19.9		22.4
Global Real Estate [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan, Plan Assets, Amount	[5]	0		0
Global Real Estate [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan, Plan Assets, Amount	[5]	19.9		22.4
Fixed Income Manager - Pooled Separate Accounts [Member]
Defined Benefit Plan, Plan Assets, Amount	[2]			89.2
Fixed Income Manager - Pooled Separate Accounts [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan, Plan Assets, Amount	[2]			0
Fixed Income Manager - Pooled Separate Accounts [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan, Plan Assets, Amount	[2]			89.2
Pension Plan and SERP Plan [Member]
Prior service cost		2.3		2.4
Actuarial losses		122.6		118.3
Accumulated other comprehensive losses, pretax		124.9		120.7
Defined Benefit Plan, Plan Assets, Amount		409.5		425.9		$ 406.3
Other Postretirement Benefits Plan [Member]
Prior service cost		0		0
Actuarial losses		3.1		3.6
Accumulated other comprehensive losses, pretax		3.1		3.6
Defined Benefit Plan, Plan Assets, Amount		$ 8.1		$ 8.1		$ 7.6
[1]Valued at the closing price of shares for domestic stocks within the managed equity accounts, and valued at the net asset value (“NAV”) of shares for mutual funds at either the closing price reported in the active market or based on yields currently available on comparable securities of issuers with similar credit ratings for corporate bonds held by the Pension Plan in these managed accounts.[2]The pooled separate accounts invest in domestic and foreign stocks, bonds and mutual funds. The fair values of these stocks, bonds and mutual funds are publicly quoted and are used in determining the NAV of the pooled separate account, which is not publicly quoted.[3]The separately managed accounts invest in U.S. Treasury Bonds and U.S. Treasury Separate Trading of Registered Interest and Principal of Securities (“UST STRIPS”). The fair values of these bonds and UST STRIPS are publicly quoted and are used in determining the NAV of the separately managed account, which is not publicly quoted.[4]The fund invested in the U.S. government, its agencies or instrumentalities or securities that are rated AAA by S&P, AAA by Fitch, or Aaa by Moody’s, including but not limited to mortgage securities such as agency and non-agency collateralized mortgage obligations, and other obligations that are secured by mortgages or mortgage backed securities, and valued at the closing price reported in the active market.[5]The funds invested in common stocks and other equity securities issued by domestic and foreign real estate companies, including real estate investment trusts ("REIT") and similar REIT-like entities. The fair values of these stocks, bonds and mutual funds are publicly quoted and are used in determining the NAV of the funds, which is not publicly quoted.

Note 18 - Pension and Postret_6

Note 18 - Pension and Postretirement Benefits - Components of Net Periodic Benefit Cost and Amounts Recognized in Other Comprehensive Income (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Pension Plan and SERP Plan [Member]
Interest cost	$ 16.1	$ 17.1	$ 14.7
Expected return on plan assets	(26.8)	(24.1)	(28.2)
Amortization of prior service cost reclassified from accumulated other comprehensive income	0.2	0.2	0.2
Amortization of net actuarial loss reclassified from accumulated other comprehensive income	3.6	5.2	4
Net periodic (credit) benefit cost	(6.9)	(1.6)	(9.3)
Less: Amortization of prior service cost reclassified from accumulated other comprehensive income	(0.1)	(0.2)	(0.2)
Less: Amortization of actuarial loss reclassified from accumulated other comprehensive losses	(0.1)	(0.1)	(0.2)
Less: Net loss recognized reclassified from accumulated other comprehensive losses	(3.5)	(5.1)	(3.8)
Actuarial loss (gain)	7.9	(24.3)	53.5
Total recognized in other comprehensive income	4.2	(29.7)	49.3
Total recognized in net periodic benefit credit and other comprehensive (income) loss	(2.7)	(31.3)	40
Other Postretirement Benefits Plan [Member]
Interest cost	0.1	0.2	0.1
Expected return on plan assets	(0.2)	(0.1)	(0.2)
Amortization of prior service cost reclassified from accumulated other comprehensive income	0	0	0
Amortization of net actuarial loss reclassified from accumulated other comprehensive income	0.3	0.4	0.2
Net periodic (credit) benefit cost	0.2	0.5	0.1
Less: Amortization of prior service cost reclassified from accumulated other comprehensive income	0	0	0
Less: Amortization of actuarial loss reclassified from accumulated other comprehensive losses	0	0	0
Less: Net loss recognized reclassified from accumulated other comprehensive losses	(0.3)	(0.4)	(0.2)
Actuarial loss (gain)	(0.2)	0.8	1
Total recognized in other comprehensive income	(0.5)	0.4	0.8
Total recognized in net periodic benefit credit and other comprehensive (income) loss	$ (0.3)	$ 0.9	$ 0.9

Note 18 - Pension and Postret_7

Note 18 - Pension and Postretirement Benefits - Summary of Weighted-average Assumptions Used in Calculating Net Periodic Benefit (Credit) Cost (Details)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Pension Plan and SERP Plan [Member]
Discount rate	5.64%	5.37%
Expected return on plan assets	6.50%	6.50%
Cash balance interest credit rate	5.42%	4.43%
Discount rate	5.37%	5.48%	2.75%
Expected return on plan assets	6.50%	6.25%	6.25%
Cash balance interest credit rate	5.42%	4.43%	2.57%
Other Postretirement Benefits Plan [Member]
Discount rate	5.17%	4.75%
Expected return on plan assets	1.75%	1.75%
Discount rate	4.75%	5.25%	2.25%
Expected return on plan assets	1.75%	1.75%	1.75%

Note 18 - Pension and Postret_8

Note 18 - Pension and Postretirement Benefits - Summary of Estimated Future Benefit Payments for Respective Plans (Details) $ in Millions	Dec. 31, 2024 USD ($)
Pension Plan and SERP Plan [Member]
2025, gross benefit amount	$ 29
2026, gross benefit amount	28.6
2027, gross benefit amount	28.7
2028, gross benefit amount	27.4
2029, gross benefit amount	26.1
2030 and thereafter, gross benefit amount	118.9
Other Postretirement Benefits Plan [Member]
2025, gross benefit amount	0.6
2025, Medicare subsidy payments	0
2025, net benefit amount	0.6
2026, gross benefit amount	0.5
2026, Medicare subsidy payments	0
2026, net benefit amount	0.5
2027, gross benefit amount	0.4
2027, Medicare subsidy payments	0
2027, net benefit amount	0.4
2028, gross benefit amount	0.4
2028, Medicare subsidy payments	0
2028, net benefit amount	0.4
2029, gross benefit amount	0.3
2029, Medicare subsidy payments	0
2029, net benefit amount	0.3
2030 and thereafter, gross benefit amount	1.1
2030 and thereafter, Medicare subsidy payments	0
2030 and thereafter, Net benefit amount	$ 1.1

Note 18 - Pension and Postret_9

Note 18 - Pension and Postretirement Benefits - Summary of Asset Allocation and Target Allocation (Details)	Dec. 31, 2024	Mar. 31, 2024	Dec. 31, 2023
Target Allocation	100%
Percentage of Plan Assets	100%		100%
Equity Securities [Member]
Target Allocation	40%	40%	40%
Percentage of Plan Assets	36.50%		40%
Debt Securities [Member]
Target Allocation	60%	60%	60%
Percentage of Plan Assets	57.50%		53.50%
Real Estate [Member]
Target Allocation	0%
Percentage of Plan Assets	4.90%		5.30%
Other Contract [Member]
Target Allocation	0%
Percentage of Plan Assets	1.10%		1.20%

Note 19 - Segment Reporting - R

Note 19 - Segment Reporting - Revenue and EBITDA by Reportable Segment (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Revenues	$ 2,881.7	$ 2,681.4	$ 2,497
Cost of revenues (exclusive of items shown separately below)	(901.1)	(876.5)	(824.6)
Selling, general and administrative	(408.7)	(391.8)	(381.5)
Other operating (loss) gain	(12.1)	0	354.2
Investment income (loss)			(5.3)
EBITDA from discontinued operations of the Energy business			(117.9)
EBITDA			1,521.9
EBITDA from discontinued operations of the Energy business			117.9
Depreciation and amortization of fixed assets	(233.6)	(206.8)	(164.2)
Amortization of intangible assets	(72.3)	(74.6)	(74.4)
Interest expense			(138.8)
Provision for income taxes	(277.9)	(258.8)	(220.3)
Income (loss) from discontinued operations	6.8	(154)	(87.8)
Net income	957.5	614.4	954.3
Insurance [Member]
Revenues	2,881.7	2,681.4	2,437
Cost of revenues (exclusive of items shown separately below)			(781.9)
Selling, general and administrative			(347.4)
Other operating (loss) gain			0
Investment income (loss)			(4.7)
EBITDA from discontinued operations of the Energy business			0
EBITDA			1,303
EBITDA from discontinued operations of the Energy business			0
Energy and Specialized Markets [Member]
Revenues			22.4
Cost of revenues (exclusive of items shown separately below)			(19.1)
Selling, general and administrative			(26.7)
Other operating (loss) gain			450
Investment income (loss)			(0.4)
EBITDA from discontinued operations of the Energy business			(117.9)
EBITDA			308.3
EBITDA from discontinued operations of the Energy business			117.9
Financial Services [Member]
Revenues	$ 0	$ 0	37.6
Cost of revenues (exclusive of items shown separately below)			(23.6)
Selling, general and administrative			(7.4)
Other operating (loss) gain			(95.8)
Investment income (loss)			(0.2)
EBITDA from discontinued operations of the Energy business			0
EBITDA			(89.4)
EBITDA from discontinued operations of the Energy business			$ 0

Note 19 - Segment Reporting - L

Note 19 - Segment Reporting - Long-lived Assets By Country (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Total long-lived assets	$ 3,353.1	$ 3,556
UNITED STATES
Total long-lived assets	2,303.1	2,455.7
UNITED KINGDOM
Total long-lived assets	589.4	597.9
Other Countries [Member]
Total long-lived assets	$ 460.6	$ 502.4

Note 20 - Related Parties (Deta

Note 20 - Related Parties (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Related Party Transaction, Amounts of Transaction	$ 0	$ 0

Note 21 - Commitments and Con_2

Note 21 - Commitments and Contingencies (Details Textual) - USD ($)	Feb. 08, 2023	Jan. 30, 2023	Jun. 27, 2022
Atlas Data Privacy Corp., et al. v. Verisk Analytics, Inc. [Member]
Loss Contingency, Damages Per Violation	$ 1,000
Ahringer et al. v. LoanDepot, Inc. and Verisk Analytics [Member]
Loss Contingency, Aggregate Claims of Proposed Class		$ 5,000,000
Williams v. DDR Merida, LLC and Lead Intelligence, Inc. [Member]
Loss Contingency, Damages Per Violation			$ 5,000

Note 22 - Subsequent Events (De

Note 22 - Subsequent Events (Details Textual) - USD ($) $ / shares in Units, $ in Billions		1 Months Ended	3 Months Ended					12 Months Ended			24 Months Ended
	Feb. 19, 2025	Jan. 31, 2025	Mar. 31, 2025	Dec. 31, 2024	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2024
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)								203,884	211,945	653,802
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)								4 years
Common Stock, Dividends, Per Share, Declared (in dollars per share)				$ 0.39	$ 0.39	$ 0.39	$ 0.39
Subsequent Event [Member]
Common Stock, Dividends, Per Share, Declared (in dollars per share)			$ 0.45
Stock Repurchase Program, Additional Authorized Amount	$ 1
Nonqualified Stock Option [Member] | Subsequent Event [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)		4 years
Nonqualified Stock Option [Member] | Key Employees [Member] | Subsequent Event [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)		212,590
Restricted Stock [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)									194,236	201,617	155,304
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)								4 years
Restricted Stock [Member] | Subsequent Event [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)		4 years
Restricted Stock [Member] | Key Employees [Member] | Subsequent Event [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)		125,835
Performance Shares [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)									48,486	111,333	47,838
Performance Shares [Member] | Key Employees [Member] | Subsequent Event [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)		46,225
TSR Based PSUs [Member] | Subsequent Event [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)		28,822
ROIC Based PSUs [Member] | Subsequent Event [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)		17,403

Schedule II - Valuation and Q_3

Schedule II - Valuation and Qualifying Accounts and Reserves (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
SEC Schedule, 12-09, Allowance, Credit Loss [Member]
Balance		$ 15.1	$ 14.3	$ 15.4
Charged to Expenses / Against Revenue	[1]	13.3	8.7	6.4
Deductions - Write-offs	[2]	(5.9)	(7.9)	(7.5)
Balance		22.5	15.1	14.3
SEC Schedule, 12-09, Valuation Allowance, Deferred Tax Asset [Member]
Balance		5.6	45.3	38.3
Charged to Expenses / Against Revenue	[1]	1.1	1.2	41.2
Deductions - Write-offs	[2]	(2.5)	(40.9)	(34.2)
Balance		$ 4.2	$ 5.6	$ 45.3
[1]Primarily additional reserves for bad debts[2]Primarily accounts receivable balances written off, net of recoveries, the expiration of loss carryforwards, and businesses held for sale