Verisk Analytics (VRSK) 10-Q 30 Apr 19 2019 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2019	Apr. 26, 2019
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q1
Trading Symbol	VRSK
Entity Registrant Name	Verisk Analytics, Inc.
Entity Central Index Key	0001442145
Current Fiscal Year End Data	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Common Stock, Shares Outstanding		163,665,652

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 179.5	$ 139.5
Accounts receivable, net of allowance for doubtful accounts of $6.5 and $5.7, respectively	438.6	356.4
Prepaid expenses	59.8	63.9
Income taxes receivable	6	34
Other current assets	51	50.7
Total current assets	734.9	644.5
Noncurrent assets:
Fixed assets, net	557.7	555.9
Operating lease right-of-use assets, net	239.6	0
Intangible assets, net	1,249	1,227.8
Goodwill, net	3,431.7	3,361.5
Deferred income tax assets	11.4	11.1
Other assets	116.8	99.5
Total assets	6,341.1	5,900.3
Current liabilities:
Accounts payable and accrued liabilities	236.3	263.5
Short-term debt and current portion of long-term debt	180.5	672.8
Deferred revenues	602.1	383.1
Operating lease liabilities	37	0
Income taxes payable	2.5	5.2
Total current liabilities	1,058.4	1,324.6
Noncurrent liabilities:
Long-term debt	2,443.3	2,050.5
Deferred income tax liabilities	354.2	350.6
Operating lease liabilities	230.5	0
Other liabilities	84.2	104
Total liabilities	4,170.6	3,829.7
Commitments and contingencies
Stockholders’ equity:
Verisk common stock, $.001 par value; 2,000,000,000 shares authorized; 544,003,038 shares issued and 163,652,594 and 163,970,410 shares outstanding, respectively	0.1	0.1
Additional paid-in capital	2,301.9	2,283
Treasury stock, at cost, 380,350,444 and 380,032,628 shares, respectively	(3,635.2)	(3,563.2)
Retained earnings	4,036	3,942.6
Accumulated other comprehensive losses	(532.3)	(591.9)
Total stockholders’ equity	2,170.5	2,070.6
Total liabilities and stockholders’ equity	$ 6,341.1	$ 5,900.3

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
Statement of Financial Position [Abstract]
Allowance for doubtful accounts	$ 6.5	$ 5.7
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)	163,652,594	163,970,410
Treasury stock (in shares)	380,350,444	380,032,628

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Income Statement [Abstract]
Revenues	$ 625	$ 581.2
Operating expenses:
Cost of revenues (exclusive of items shown separately below)	231.4	221.2
Selling, general and administrative	111.4	91.8
Depreciation and amortization of fixed assets	46.6	40.5
Amortization of intangible assets	33.2	33.2
Total operating expenses	422.6	386.7
Operating income	202.4	194.5
Other income (expense):
Investment income and others, net	(0.4)	0.6
Interest expense	(31.9)	(32.8)
Nonoperating Income Expense And Interest Expense	(32.3)	(32.2)
Income before income taxes	170.1	162.3
Provision for income taxes	(35.7)	(29.3)
Net income	$ 134.4	$ 133
Basic net income per share (USD per shares)	$ 0.82	$ 0.81
Diluted net income per share (USD per shares)	$ 0.81	$ 0.79
Weighted average shares outstanding:
Basic (in shares)	163,528,343	165,043,047
Diluted (in shares)	166,544,945	168,992,535

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Statement of Comprehensive Income [Abstract]
Net income	$ 134.4	$ 133
Other comprehensive income, net of tax:
Foreign currency translation adjustment	58.5	102.7
Pension and postretirement liability adjustment	1.1	1
Total other comprehensive income	59.6	103.7
Comprehensive income	$ 194	$ 236.7

Condensed Consolidated Statem_3

Condensed Consolidated Statements of Changes in Stockholders' Equity (Unaudited) - USD ($) $ in Millions	Total	Par Value	Additional Paid-in Capital	Treasury Stock	Retained Earnings	Accumulated Other Comprehensive Losses	Common Stock Issued
Beginning balance (in shares) at Dec. 31, 2017							544,003,038
Beginning balance at Dec. 31, 2017	$ 1,925.4	$ 0.1	$ 2,180.1	$ (3,150.5)	$ 3,308	$ (412.3)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	133				133
Other comprehensive income	103.7					103.7
Treasury stock acquired	(39.8)			(39.8)
Stock options exercised	17.3		12.4	4.9
Stock-based compensation	8.8		8.8
Other stock issuances	0.7		0.6	0.1
Ending balance (in shares) at Mar. 31, 2018							544,003,038
Ending balance at Mar. 31, 2018	$ 2,184.3	0.1	2,201.9	(3,185.3)	3,476.9	(309.3)
Beginning balance (in shares) at Dec. 31, 2018	544,003,038						544,003,038
Beginning balance at Dec. 31, 2018	$ 2,070.6	0.1	2,283	(3,563.2)	3,942.6	(591.9)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	134.4				134.4
Common stock dividend ($0.25 per share declared)	(41)				(41)
Other comprehensive income	59.6					59.6
Treasury stock acquired	(75)			(75)
Stock options exercised	11.6		8.7	2.9
Stock-based compensation	9.2		9.2
Other stock issuances	$ 1.1		1	0.1
Ending balance (in shares) at Mar. 31, 2019	544,003,038						544,003,038
Ending balance at Mar. 31, 2019	$ 2,170.5	$ 0.1	$ 2,301.9	$ (3,635.2)	$ 4,036	$ (532.3)

Condensed Consolidated Statem_4

Condensed Consolidated Statements of Changes in Stockholders' Equity (Unaudited) (Parenthetical) - $ / shares	3 Months Ended	12 Months Ended
	Mar. 31, 2019	Dec. 31, 2018
Statement of Stockholders' Equity [Abstract]
Treasury stock, shares acquired (in shares)	636,590	382,508
Shares reissued from treasury stock (in shares)	307,270	592,968
Other stock issuances (in shares)	11,504	10,379
Common stock, dividends, per share, declared (in dollars per share)	$ 0.25

Condensed Consolidated Statem_5

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Cash flows from operating activities:
Net income	$ 134.4	$ 133
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization of fixed assets	46.6	40.5
Amortization of intangible assets	33.2	33.2
Amortization of debt issuance costs and original issue discount	0.9	1
Provision for doubtful accounts	1.2	1.5
Stock based compensation	9.2	8.8
Realized loss on available-for-sale securities, net	(0.4)	0
Deferred income taxes	3.3	(0.6)
Changes in assets and liabilities, net of effects from acquisitions:
Accounts receivable	(81.6)	(74.7)
Prepaid expenses and other assets	6.6	(6.9)
Income taxes	25.3	24.4
Accounts payable and accrued liabilities	(29.9)	(3)
Deferred revenues	217.7	199.1
Other liabilities	(0.4)	(29.3)
Net cash provided by operating activities	366.1	327
Cash flows from investing activities:
Acquisitions, net of cash acquired of $3.7 and $2.3, respectively	(69.1)	(21.8)
Escrow funding associated with acquisitions	0	(0.4)
Capital expenditures	(45.2)	(43.2)
Purchases of available-for-sale securities	(0.1)	(0.1)
Proceeds from sales and maturities of available-for-sale securities	0.1	0.1
Other investing activities, net	(6)	(3.1)
Net cash used in investing activities	(120.3)	(68.5)
Cash flows from financing activities:
Repayments of short-term debt, net	(245)	(235)
Repayments of current portion of long-term debt, net	(250)	0
Proceeds from issuance of long-term debt, net of original issue discount	397.9	0
Payment of debt issuance costs	(2.9)	0
Repurchases of common stock	(75)	(36.2)
Proceeds from stock options exercised	11.6	17.5
Dividends paid	(40.9)	0
Other financing activities, net	(2.1)	(0.5)
Net cash used in financing activities	(206.4)	(254.2)
Effect of exchange rate changes	0.6	3.2
Increase in cash and cash equivalents	40	7.5
Cash and cash equivalents, beginning of period	139.5	142.3
Cash and cash equivalents, end of period	179.5	149.8
Supplemental disclosures:
Income taxes paid	7.5	5.1
Interest paid	15.3	19.3
Noncash investing and financing activities:
Repurchases of common stock included in accounts payable and accrued liabilities	0	3.6
Deferred tax (asset) liability established on date of acquisition	(0.1)	1.6
Right-of-use assets obtained in exchange for new operating lease liabilities	247.6	0
Finance lease obligations	1.7	7.7
Debt issuance costs included in accounts payable and accrued liabilities	1	0
Fixed assets included in accounts payable and accrued liabilities	0.7	1
Dividend included in other liabilities	$ 0.1	$ 0

Condensed Consolidated Statem_6

Condensed Consolidated Statements of Cash Flows (Unaudited) (Parenthetical) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Statement of Cash Flows [Abstract]
Cash acquired from acquisition	$ 3.7	$ 2.3

Organization

Organization	3 Months Ended
	Mar. 31, 2019
Accounting Policies [Abstract]
Organization	Organization: Verisk Analytics, Inc. and its consolidated subsidiaries (“Verisk” or the “Company”) is a data analytics provider serving customers in insurance, energy and specialized markets, and financial services. Using various technologies to collect and analyze billions of records, Verisk draws on numerous data assets and domain expertise to provide first-to-market innovations that are integrated into customer workflows. Verisk offers predictive analytics and decision support solutions to customers in rating, underwriting, claims, catastrophe and weather risk, global risk analytics, natural resources intelligence, economic forecasting, and many other fields. Around the world, Verisk helps customers protect people, property, and financial assets. Verisk was established to serve as the parent holding company of Insurance Services Office, Inc. (“ISO”) upon completion of the initial public offering (“IPO”), which occurred on October 9, 2009. ISO was formed in 1971 as an advisory and rating organization for the property and casualty ("P&C") insurance industry to provide statistical and actuarial services, to develop insurance programs and to assist insurance companies in meeting state regulatory requirements. Over the past decade, the Company broadened its data assets, entered new markets, placed a greater emphasis on analytics, and pursued strategic acquisitions. Verisk trades under the ticker symbol “VRSK” on the Nasdaq Global Select Market.

Basis of Presentation and Summa

Basis of Presentation and Summary of Significant Accounting Policies	3 Months Ended
	Mar. 31, 2019
Accounting Policies [Abstract]
Basis of Presentation and Summary of Significant Accounting Policies	Basis of Presentation and Summary of Significant Accounting Policies: The accompanying unaudited condensed consolidated financial statements have been prepared on the basis of accounting principles generally accepted in the U.S. (“U.S. GAAP”). The preparation of financial statements in conformity with these accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and 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 stock options granted, and assets and liabilities for pension and postretirement benefits. Actual results may ultimately differ from those estimates. The condensed consolidated financial statements as of March 31, 2019 and for the three months ended March 31, 2019 and 2018 , in the opinion of management, include all adjustments, consisting of normal recurring items, to present fairly the Company’s financial position, results of operations and cash flows. The operating results for the three months ended March 31, 2019 are not necessarily indicative of the results to be expected for the full year. Other than adopting Accounting Standard Codification ("ASC") 842, Leases ("ASC 842") and Regulatory Identifier Number ("RIN") 3235-AL82, Disclosure Update and Simplification issued by the Securities and Exchange Commission (“SEC”) as of January 1, 2019, the condensed consolidated financial statements and related notes as of and for the three months ended March 31, 2019 have been prepared on the same basis as and should be read in conjunction with the annual report on Form 10-K for the year ended December 31, 2018 . Certain information and footnote disclosures normally included in financial statements prepared in accordance with U.S. GAAP have been condensed or omitted pursuant to the rules of the SEC. The Company believes the disclosures made are adequate to keep the information presented from being misleading. (a) Leases In February 2016, the Financial Accounting Standards Board ("FASB") established ASC 842 which focused on increasing transparency and comparability related to leases among organizations by requiring the recognition of right-of-use (“ROU”) assets and lease liabilities on the balance sheet. The core principle of ASC 842 is that a lessee should recognize the assets and liabilities that arise from leases. This concept requires a lessee to recognize on the balance sheet an ROU asset representing the lessee’s right to use the underlying asset over the duration of the lease term and a liability to make lease payments. Most prominent among the changes in the standard is the recognition of ROU assets and lease liabilities by lessees for those leases classified as operating leases. Under the standard, disclosures are required to meet the objective of enabling users of financial statements to assess the amount, timing, and uncertainty of cash flows arising from leases. The Company is also required to recognize and measure leases existing at, or entered into after the adoption date using a modified retrospective approach, with certain practical expedients available. The Company adopted ASC 842 on January 1, 2019 using the modified retrospective approach and elected the transition relief package of practical expedients by applying previous accounting conclusions under ASC 840 to all leases that existed prior to the transition date. As a result, the Company did not reassess 1) whether existing or expired contracts contain leases, 2) lease classification for any existing or expired leases, and 3) whether lease origination costs qualified as initial direct costs. The Company did not elect the practical expedient to use hindsight in determining a lease term and impairment of the ROU assets at the adoption date. The Company did not separate lease components from non-lease components for the specified asset classes. The election applies to all operating leases where fixed rent payments incorporate common area maintenance. For leases where the election does not apply, the common area maintenance is billed by the landlord separately. Additionally, the Company did not apply the recognition requirements under ASC 842 to short-term leases, generally defined as lease term of less than one year. The Company has operating and finance leases for corporate offices, data centers, and certain equipment. The leases have remaining lease terms ranging from one year to fourteen years, some of which include the options to extend the leases for up to twenty years, and some of which include the options to terminate the leases within one year. As of March 31, 2019 , extension and termination options have not been considered in the calculation of the ROU assets and lease liabilities as the Company determined it was not reasonably certain that it will exercise those options. The Company determines if an arrangement is a lease at inception. The Company considers 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 ROU asset represents the Company’s right to use an underlying asset for the lease term and the lease liabilities represent its obligation to make lease payments arising from the lease. Operating lease ROU assets and lease liabilities are recognized at commencement date based on the present value of lease payments over the lease term. As the Company’s operating leases do not provide an implicit rate, the Company uses an incremental borrowing rate based on the information available on the adoption date in determining the present value of lease payments. The incremental borrowing rate was calculated by using the Company's credit rating on its publicly traded U.S. unsecured bonds and estimating an appropriate credit rating for similar secured debt instruments. The Company's calculated credit rating on secured debt instruments determined the yield curve used. The Company calculated an implied spread and applied the spreads to the risk-free interest rates, based on the yield of the U.S. Treasury zero coupon securities with a maturity equal to the remaining lease term, in determining the borrowing rates for all operating leases. The operating lease ROU assets include any lease payments made prior to the rent commencement date and exclude lease incentives. Lease expense for lease payments are recognized on a straight-line basis over the lease term. Operating lease transactions are included in "Operating lease right-of-use assets, net", and "Operating lease liabilities", current and noncurrent, within the accompanying condensed consolidated balance sheets. Finance leases are included in property and equipment under "Fixed assets, net", "Short-term debt and current portion of long-term debt", and "Long-term debt" within the accompanying condensed consolidated balance sheets.

Revenues

Revenues	3 Months Ended
	Mar. 31, 2019
Revenue from Contract with Customer [Abstract]
Revenues	Revenues: In May 2014, the FASB issued Topic 606, which replaces numerous requirements under Topic 605, Revenue Recognition ("Topic 605"), in U.S. GAAP, including industry-specific requirements, and provides companies with a single revenue recognition model for recognizing revenue from contracts with customers. The core principle of the new standard is that a company should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the company expects to be entitled in exchange for those goods or services. Revenue is recognized in a five-step model: 1) identify the contract with a customer; 2) identify the performance obligations in the contract; 3) determine the transaction price; 4) allocate the transaction price to the performance obligations in the contract; and 5) recognize revenue when or as the company satisfies a performance obligation. Disaggregated revenues by type of service and by country are provided below for the three months ended March 31, 2019 and 2018 . No individual country outside of the U.S. accounted for 10.0% or more of the Company's consolidated revenues for the three months ended March 31, 2019 or 2018 . Three Months Ended March 31, 2019 2018 Insurance: Underwriting & rating $ 303.5 $ 280.6 Claims 147.7 132.0 Total Insurance 451.2 412.6 Energy and Specialized Markets 130.8 125.5 Financial Services 43.0 43.1 Total revenues $ 625.0 $ 581.2 Three Months Ended March 31, 2019 2018 Revenues: U.S. $ 480.6 $ 449.5 U.K. 44.2 35.0 Other countries 100.2 96.7 Total revenues $ 625.0 $ 581.2 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 March 31, 2019 and December 31, 2018 , the Company had 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 (an amount of consideration is due) from the customer. As of March 31, 2019 and December 31, 2018 , the Company had contract liabilities of $607.7 million and $385.1 million , respectively. The $222.6 million increase in contract liabilities from December 31, 2018 to March 31, 2019 was primarily due to billings of $314.5 million that were paid in advance, partially offset by $91.9 million of revenue recognized in the three months ended March 31, 2019 . Contract liabilities are included in "Deferred revenues" and "Other liabilities" in the condensed consolidated balance sheet as of March 31, 2019 and December 31, 2018 . The Company’s most significant remaining performance obligations relate to providing customers with the right to use and update the online content over the remaining contract term. Revenues expected to be recognized in the future related to performance obligations, included within our deferred revenue and other liabilities, that are unsatisfied at March 31, 2019 are $607.7 million . 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 be subject to modifications, impacting the timing of satisfying the performance obligations. These performance obligations, which are expected to be satisfied within one year, comprised approximately 99.0% of the balance at March 31, 2019 .

Fair Value Measurements

Fair Value Measurements	3 Months Ended
	Mar. 31, 2019
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements: Certain assets and liabilities of the Company are reported at fair value in the accompanying condensed consolidated balance sheets. To increase consistency and comparability of assets and liabilities recorded at fair value, ASC 820-10, Fair Value Measurements (“ASC 820-10”), established a three-level fair value hierarchy to prioritize the inputs to valuation techniques used to measure fair value. ASC 820-10 requires disclosures detailing the extent to which companies measure assets and liabilities at fair value, the methods and assumptions used to measure fair value and the effect of fair value measurements on earnings. In accordance with ASC 820-10, the Company applied the following fair value hierarchy: Level 1 - Assets or liabilities for which the identical item is traded on an active exchange, such as publicly-traded instruments. Level 2 - Assets and liabilities valued based on observable market data for similar instruments. Level 3 - Assets or liabilities for which significant valuation assumptions are not readily observable in the market; instruments valued based on the best available data, some of which are internally-developed, and considers risk premiums that market participants would require. The fair values 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 instruments. The following table summarizes fair value measurements by level for registered investment companies that were measured at fair value on a recurring basis: Quoted Prices in Active Markets for Identical Assets (Level 1) March 31, 2019 Registered investment companies (1) $ 3.7 December 31, 2018 Registered investment companies (1) $ 3.3 _______________ (1) Registered investment companies are classified as available-for-sale securities and are valued using quoted prices in active markets multiplied by the number of shares owned. The Company has elected not to carry its long-term debt at fair value. The carrying value of the long-term debt represents amortized cost less unamortized discount and debt issuance costs. The Company assesses the fair value of these financial instruments based on an estimate of interest rates available to the Company for financial instruments with similar features, the Company’s current credit rating and spreads applicable to the Company. The following table summarizes the carrying value and estimated fair value of these financial instruments as of March 31, 2019 and December 31, 2018 , respectively: 2019 2018 Fair Value Hierarchy Carrying Value Estimated Fair Value Carrying Value Estimated Fair Value Financial instruments not carried at fair value: Long-term debt excluding finance Level 2 $ 2,425.9 $ 2,565.8 $ 2,031.0 $ 2,347.4 The Company received a 10.0% non-participating interest in VCVH Holdings LLC in 2016 with the sale of the Company's healthcare business. As of March 31, 2019 and December 31, 2018 , the balance of this investment was $8.4 million and accounted for as a cost based investment under ASC 323-10-25, The Equity Method of Accounting for Investments in Common Stock ("ASC 323-10-25"), because the interest is currently non-participating, and the Company does not have the ability to exercise significant influence over the investees’ operating and financial policies. As of March 31, 2019 and December 31, 2018 , the Company also had an investment in a limited partnership of $11.0 million and $5.9 million , respectively, accounted for in accordance with ASC 323-10-25 as an equity method investment.

Leases

Leases	3 Months Ended
	Mar. 31, 2019
Leases [Abstract]
Leases	Leases: The following table presents the cumulative effect of the changes made to the condensed consolidated balance sheet as of January 1, 2019 as a result of the adoption of ASC 842: December 31, 2018 Adjustments due to ASC 842 January 1, 2019 Prepaid expenses $ 63.9 $ (0.2 ) $ 63.7 Operating lease right-of-use assets, net $ — $ 247.8 $ 247.8 Accounts payable and accrued liabilities $ 263.5 $ (2.0 ) $ 261.5 Operating lease liabilities, current $ — $ 39.5 $ 39.5 Operating lease liabilities, noncurrent $ — $ 236.4 $ 236.4 Other liabilities $ 104.0 $ (26.3 ) $ 77.7 The following table presents lease cost, cash paid for amounts included in the measurement of lease liabilities, ROU assets obtained, weighted-average remaining lease terms, and weighted-average discount rates for finance and operating leases for the three months ended March 31, 2019 . For the Three Months Ended March 31, 2019 Lease cost: Operating lease cost (1) $ 12.1 Finance lease cost Depreciation of finance lease assets (2) 2.8 Interest on finance lease liabilities (3) 0.4 Total lease cost $ 15.3 Other information: Cash paid for amounts included in the measurement of lease liabilities Operating cash outflows from operating leases $ (12.5 ) Operating cash outflows from finance leases $ (0.4 ) Financing cash outflows from finance leases $ (2.1 ) Weighted-average remaining lease term - operating leases 9.7 years Weighted-average remaining lease term - finance leases 2.8 years Weighted-average discount rate - operating leases 3.9 % Weighted-average discount rate - finance leases 4.4 % _______________ (1) Included in "Cost of revenues" and "Selling, general and administrative" expenses in the accompanying condensed consolidated statements of operations (2) Included in "Depreciation and amortization of fixed assets" in the accompanying condensed consolidated statements of operations (3) Included in "Interest expense" in the accompanying condensed consolidated statements of operations The ROU assets and lease liabilities for finance leases were $28.5 million and $27.9 million , respectively, as of March 31, 2019 . The ROU assets for finance leases were included in "Fixed assets, net" in the accompanying condensed consolidated balance sheets. The lease liabilities for finance leases were included in the "Short-term debt and current portion of long-term debt" and "Long-term debt" in the accompanying condensed consolidated balance sheets (see Note 9 Debt). Maturities of lease liabilities for the remainder of 2019 and the years through 2025 and thereafter are as follows: March 31, 2019 Years Ending Operating Leases Finance Leases 2019 $ 34.5 $ 9.3 2020 47.3 9.9 2021 37.4 8.0 2022 34.0 2.5 2023 29.1 — 2024 19.7 — 2025 and thereafter 128.0 — Total lease payments 330.0 29.7 Less amount representing interest (62.5 ) (1.8 ) Present value of total lease payments $ 267.5 $ 27.9
Leases	Leases: The following table presents the cumulative effect of the changes made to the condensed consolidated balance sheet as of January 1, 2019 as a result of the adoption of ASC 842: December 31, 2018 Adjustments due to ASC 842 January 1, 2019 Prepaid expenses $ 63.9 $ (0.2 ) $ 63.7 Operating lease right-of-use assets, net $ — $ 247.8 $ 247.8 Accounts payable and accrued liabilities $ 263.5 $ (2.0 ) $ 261.5 Operating lease liabilities, current $ — $ 39.5 $ 39.5 Operating lease liabilities, noncurrent $ — $ 236.4 $ 236.4 Other liabilities $ 104.0 $ (26.3 ) $ 77.7 The following table presents lease cost, cash paid for amounts included in the measurement of lease liabilities, ROU assets obtained, weighted-average remaining lease terms, and weighted-average discount rates for finance and operating leases for the three months ended March 31, 2019 . For the Three Months Ended March 31, 2019 Lease cost: Operating lease cost (1) $ 12.1 Finance lease cost Depreciation of finance lease assets (2) 2.8 Interest on finance lease liabilities (3) 0.4 Total lease cost $ 15.3 Other information: Cash paid for amounts included in the measurement of lease liabilities Operating cash outflows from operating leases $ (12.5 ) Operating cash outflows from finance leases $ (0.4 ) Financing cash outflows from finance leases $ (2.1 ) Weighted-average remaining lease term - operating leases 9.7 years Weighted-average remaining lease term - finance leases 2.8 years Weighted-average discount rate - operating leases 3.9 % Weighted-average discount rate - finance leases 4.4 % _______________ (1) Included in "Cost of revenues" and "Selling, general and administrative" expenses in the accompanying condensed consolidated statements of operations (2) Included in "Depreciation and amortization of fixed assets" in the accompanying condensed consolidated statements of operations (3) Included in "Interest expense" in the accompanying condensed consolidated statements of operations The ROU assets and lease liabilities for finance leases were $28.5 million and $27.9 million , respectively, as of March 31, 2019 . The ROU assets for finance leases were included in "Fixed assets, net" in the accompanying condensed consolidated balance sheets. The lease liabilities for finance leases were included in the "Short-term debt and current portion of long-term debt" and "Long-term debt" in the accompanying condensed consolidated balance sheets (see Note 9 Debt). Maturities of lease liabilities for the remainder of 2019 and the years through 2025 and thereafter are as follows: March 31, 2019 Years Ending Operating Leases Finance Leases 2019 $ 34.5 $ 9.3 2020 47.3 9.9 2021 37.4 8.0 2022 34.0 2.5 2023 29.1 — 2024 19.7 — 2025 and thereafter 128.0 — Total lease payments 330.0 29.7 Less amount representing interest (62.5 ) (1.8 ) Present value of total lease payments $ 267.5 $ 27.9

Acquisitions

Acquisitions	3 Months Ended
	Mar. 31, 2019
Business Combinations [Abstract]
Acquisitions	Acquisitions: 2019 Acquisition On March 29, 2019, the Company entered into a partnership agreement with an enterprise application software provider to acquire their Content as a Service (“CaaS”) business, which included the Environmental Health and Safety Regulatory Content and Environmental Health and Safety Regulatory Documentation teams and data assets, for a net cash purchase price of $69.1 million . The CaaS business has become part of the Company's Energy and Specialized Markets segment. This transaction strengthened the Company’s environmental health and safety services business and extended its global customer footprint and European operations. The preliminary purchase price allocation of the CaaS business resulted in the following: CaaS Cash and cash equivalents $ 3.7 Other current assets 3.0 Fixed assets 0.1 Intangible assets 34.4 Goodwill 32.8 Deferred income taxes, net 0.1 Total assets acquired 74.1 Current liabilities (1.3 ) Net assets acquired 72.8 Cash acquired (3.7 ) Net cash purchase price $ 69.1 The preliminary amounts assigned to intangible assets by type for the CaaS business are summarized in the table below: Weighted Average Useful Life Total Technology-based 7 years $ 4.0 Marketing-related 3 years 0.3 Customer-related 12 years 15.5 Database-related 10 years 14.6 Total intangible assets $ 34.4 The preliminary allocations of the purchase price for the 2018 and 2019 acquisitions with less than a year ownership are subject to revisions as additional information is obtained about the facts and circumstances that existed as of each acquisition date. The revisions may have a significant impact on the condensed consolidated financial statements. The allocations of the purchase price will be finalized once all information is obtained, but not to exceed one year from the acquisition date. The primary areas of the purchase price allocation that are not yet finalized relate to operating leases, income and non-income taxes, deferred revenues, the valuation of intangible assets acquired, and residual goodwill. The preliminary amounts assigned to intangible assets by type for these acquisitions were based upon the Company's valuation model and historical experiences with entities with similar business characteristics. For the three months ended March 31, 2019 , the Company finalized the purchase accounting for the acquisitions of Marketview Limited and Business Insight Limited during the measurement periods in accordance with ASC 805, Business Combinations . The impact of finalization of the purchase accounting associated with these acquisitions was not material to the accompanying condensed consolidated statements of operations for the three months ended March 31, 2019 and 2018 . For the three months ended March 31, 2019 and 2018 , the Company incurred transaction costs of $0.9 million and $0.7 million , respectively. The transaction costs were included within "Selling, general and administrative" expenses in the accompanying condensed consolidated statements of operations. For the 2019 acquisition, the goodwill of $2.9 million associated with the stock purchase of the CaaS business is not deductible for tax purposes. The 2019 acquisition was immaterial to the Company's condensed consolidated financial statements for the three months ended March 31, 2019 and 2018 , and therefore, supplemental information disclosure on an unaudited pro forma basis is not presented. Acquisition Escrows and Related Liabilities Pursuant to the related acquisition agreements, the Company has funded various escrow accounts to satisfy pre-acquisition indemnity and tax claims arising subsequent to the acquisition date, as well as a portion of the contingent payments. At March 31, 2019 and December 31, 2018 , the current portion of the escrows amounted to $31.3 million and $31.2 million , and the noncurrent portion of the escrows amounted to $8.9 million and $8.7 million , respectively. The current and noncurrent portions of the escrows have been included in “Other current assets” and "Other assets" in the accompanying condensed consolidated balance sheets, respectively. The acquisitions of Emergent Network Intelligence Limited, Healix International Holdings Limited, Rebmark Legal Solutions Limited, PowerAdvocate, Inc. and Validus-IVC Limited include acquisition related contingencies, for which the sellers of these acquisitions could receive additional payments by achieving the specific predetermined revenue and EBITDA earn-out targets for exceptional performance. The Company believes that the liabilities recorded as of March 31, 2019 and December 31, 2018 reflect the best estimate of acquisition related contingent payments. The associated current liabilities for these acquisitions of $21.0 million and $12.7 million have been included in “Accounts payable and accrued liabilities” in the accompanying condensed consolidated balance sheets as of March 31, 2019 and December 31, 2018 , respectively. The associated noncurrent liabilities for these acquisitions of $30.6 million and $28.3 million have been included in “Other liabilities” in the accompanying condensed consolidated balance sheets as of March 31, 2019 and December 31, 2018 , respectively.

Goodwill and Intangible Assets

Goodwill and Intangible Assets	3 Months Ended
	Mar. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	Goodwill and Intangible Assets: The following is a summary of the change in goodwill from December 31, 2018 through March 31, 2019 , both in total and as allocated to the Company’s operating segments: Insurance Energy and Specialized Markets Financial Services Total Goodwill, net at December 31, 2018 (1) $ 833.8 $ 2,054.7 $ 473.0 $ 3,361.5 Current period acquisitions — 32.8 — 32.8 Purchase accounting reclassification (0.1 ) — (0.1 ) (0.2 ) Foreign currency translation 7.3 30.2 0.1 37.6 Goodwill, net at March 31, 2019 (1) $ 841.0 $ 2,117.7 $ 473.0 $ 3,431.7 _______________ (1) These balances are net of accumulated impairment charges of $3.2 million that occurred prior to December 31, 2018 . Goodwill and intangible assets with indefinite lives are subject to impairment testing annually as of June 30, or whenever events or changes in circumstances indicate that the carrying amount may not be fully recoverable. Goodwill impairment testing compares the carrying value of each reporting unit to its fair value. If the fair value of the reporting unit exceeds the carrying value of the net assets, including goodwill assigned to that reporting unit, goodwill is not impaired. If the carrying value of the reporting unit’s net assets including goodwill exceeds the fair value of the reporting unit, then the Company will determine the implied fair value of the reporting unit’s goodwill. If the carrying value of a reporting unit’s goodwill exceeds its implied fair value, then an impairment loss is recorded for the difference between the carrying amount and the implied fair value of goodwill. The Company completed the required annual impairment test as of June 30, 2018, and concluded that there was no impairment of goodwill. There were no triggering events for the three months ended March 31, 2019 that would impact the results of the impairment test performed as of June 30, 2018. The Company’s intangible assets and related accumulated amortization consisted of the following: Weighted Average Useful Life Cost Accumulated Amortization Net March 31, 2019 Technology-based 8 years $ 446.7 $ (266.4 ) $ 180.3 Marketing-related 16 years 260.8 (82.2 ) 178.6 Contract-based 6 years 5.0 (5.0 ) — Customer-related 14 years 741.1 (238.9 ) 502.2 Database-related 19 years 474.6 (86.7 ) 387.9 Total intangible assets $ 1,928.2 $ (679.2 ) $ 1,249.0 December 31, 2018 Technology-based 8 years $ 438.8 $ (255.5 ) $ 183.3 Marketing-related 16 years 255.8 (77.2 ) 178.6 Contract-based 6 years 5.0 (5.0 ) — Customer-related 14 years 718.2 (223.9 ) 494.3 Database-related 19 years 450.5 (78.9 ) 371.6 Total intangible assets $ 1,868.3 $ (640.5 ) $ 1,227.8 Amortization expense related to intangible assets for the three months ended March 31, 2019 and 2018 was $33.2 million . Estimated amortization expense for the remainder of 2019 and the years through 2023 and thereafter for intangible assets subject to amortization is as follows: Year Amount 2019 $ 102.6 2020 134.6 2021 124.2 2022 112.6 2023 100.0 2024 and thereafter 675.0 $ 1,249.0

Income Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2019
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes: The Company’s effective tax rate for the three months ended March 31, 2019 was 21.0% compared to the effective tax rate for the three months ended March 31, 2018 of 18.0% . The effective tax rate for the three months ended March 31, 2019 is higher than the effective tax rate for the three months ended March 31, 2018 primarily due to the impact of lower tax benefits from equity compensation in the current period versus the prior period. The difference between statutory tax rates and the Company’s effective tax rate is primarily due to tax benefits attributable to equity compensation, offset by additional state and local income taxes.

Debt

Debt	3 Months Ended
	Mar. 31, 2019
Debt Disclosure [Abstract]
Debt	Debt: The following table presents short-term and long-term debt by issuance as of March 31, 2019 and December 31, 2018 : Issuance Date Maturity Date 2019 2018 Short-term debt and current portion of long-term debt: Syndicated revolving credit facility Various Various $ 170.0 $ 415.0 Senior notes: 4.875% senior notes 12/8/2011 1/15/2019 — 250.0 Finance lease liabilities (1) Various Various 10.5 7.8 Short-term debt and current portion of long-term 180.5 672.8 Long-term debt: Senior notes: 4.125% senior notes, less unamortized discount 03/06/2019 03/15/2029 394.0 — 4.000% senior notes, less unamortized discount 05/15/2015 06/15/2025 892.3 892.1 5.500% senior notes, less unamortized discount 05/15/2015 06/15/2045 345.4 345.3 4.125% senior notes, less unamortized discount 09/12/2012 09/12/2022 347.9 347.7 5.800% senior notes, less unamortized discount 04/06/2011 05/01/2021 448.9 448.8 Finance lease liabilities (1) Various Various 17.4 19.5 Syndicated revolving credit facility debt issuance Various Various (2.6 ) (2.9 ) Long-term debt 2,443.3 2,050.5 Total debt $ 2,623.8 $ 2,723.3 _______________ (1) Refer to Note 5 Leases On January 15, 2019 , the Company utilized borrowings from its committed senior unsecured Syndicated Revolving Credit Facility (the "Credit Facility") and cash from operations to repay the 4.875% senior notes in full in an amount of $250.0 million . On March 6, 2019 , the Company completed an issuance of $400.0 million aggregate principal amount of 4.125% senior notes due 2029 (the "2029 notes"). The 2029 notes mature on March 15, 2029 and accrue interest at a fixed rate of 4.125% per annum. Interest is payable semiannually on the 2029 notes on March 15th and September 15th of each year, beginning on September 15, 2019. The 2029 notes were issued at a discount of $2.1 million and the Company incurred debt issuance costs of $3.9 million . The original issue discount and debt issuance costs were recorded in "Long-term debt" in the accompanying condensed consolidated balance sheets and these costs will be amortized to "Interest expense" in the accompanying consolidated statements of operations over the life of the 2029 notes. The net proceeds from the issuance of the 2029 notes were utilized to partially repay the Credit Facility and for general corporate purposes. The indenture governing the 2029 notes restricts the Company's ability to, among other things, create certain liens, enter into sale/leaseback transactions and consolidate with, sell, lease, convey or otherwise transfer all or substantially all of the Company's assets, or merge with or into, any other person or entity. As of March 31, 2019 and December 31, 2018 , the Company had senior notes with an aggregate principal amount of $2,450.0 million and $2,300.0 million outstanding, respectively, and was in compliance with their financial and other debt covenants. As of March 31, 2019 , the Company had a borrowing capacity of $1,500.0 million under the Credit Facility with Bank of America N.A., JP Morgan Chase, N.A., and a syndicate of other banks. The Credit Facility may be used for general corporate purposes, including working capital needs and capital expenditures, acquisitions and the share repurchase program (the "Repurchase Program"). As of March 31, 2019 , the Company was in compliance with all financial and other debt covenants under the Credit Facility. As of March 31, 2019 and December 31, 2018 , the available capacity under the Credit Facility was $1,324.6 million and $1,078.9 million , net of the letters of credit of $5.4 million and $6.1 million , respectively. In April 2019, the Company repaid $70.0 million of outstanding borrowings as of March 31, 2019 , under the Credit Facility.

Stockholders' Equity

Stockholders' Equity	3 Months Ended
	Mar. 31, 2019
Equity [Abstract]
Stockholders' Equity	Stockholders’ Equity: The Company's common shares have rights to any dividend declared by the board of directors (the "Board"), subject to any preferential or other rights of any outstanding preferred stock, and voting rights to elect all current members of the Board. The Company has 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. The Company did not issue any preferred shares as of March 31, 2019 . At March 31, 2019 and December 31, 2018 , the adjusted closing price of Verisk common stock was $133.00 and $108.83 per share, respectively. On February 13, 2019, the Company’s Board of Directors approved a cash dividend of $0.25 per share of common stock issued and outstanding to the holders of record as of March 15, 2019. The cash dividend of $40.9 million was paid on March 29, 2019 and recorded as a reduction to retained earnings. On April 29, 2019, the Company's Board of Directors approved a cash dividend of $0.25 per share of common stock issued and outstanding, payable on June 28, 2019, to the holders of record as of June 14, 2019. The dividend is recorded, subsequent to March 31, 2019 as a reduction to retained earnings and will be adjusted for actual payments. Share Repurchase Program Since May 2010, the Company has authorized repurchases of up to $3,300.0 million of its common stock through its Repurchase Program. The Company has repurchased shares with an aggregate value of $2,947.4 million . The Company repurchased 636,590 shares of common stock with an aggregate value of $75.0 million during the three months ended March 31, 2019 . As of March 31, 2019 , the Company had $352.6 million available to repurchase shares through its Repurchase Program. In December 2018, the Company entered into an Accelerated Share Repurchase ("ASR") agreement to repurchase shares of its common stock for an aggregate purchase price of $75.0 million with Morgan Stanley & Co. LLC. The ASR agreement is accounted for as a treasury stock transaction and a forward stock purchase agreement indexed to the Company's common stock. The forward stock purchase agreement is classified as an equity instrument under ASC 815-40, Contracts in Entity's Own Equity ("ASC 815-40") and was deemed to have a fair value of zero at the effective date. Upon payment of the aggregate purchase price on January 2, 2019, the Company received an aggregate delivery of 636,590 shares of its common stock at a price of $117.82 per share during the three months ended March 31, 2019 . The aggregate purchase price was recorded as a reduction to stockholders' equity in the Company's condensed consolidated statements of changes in stockholders' equity for the three months ended March 31, 2019 . These 636,590 shares 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 March 2019, the Company entered into an additional ASR agreement with Morgan Stanley & Co. LLC to repurchase shares of its common stock for an aggregate purchase price of $50.0 million . Upon payment of the aggregate purchase price on April 1, 2019, the Company received an initial delivery of 300,752 shares of its common stock at a price of $133.00 per share, representing approximately $40.0 million of the aggregate purchase price. Upon the final settlement of the ASR agreement in June 2019, the Company may be entitled to receive additional shares of its common stock or, under certain limited circumstances, be required to deliver shares to the counter-party. Treasury Stock As of March 31, 2019 , the Company’s treasury stock consisted of 380,350,444 shares of common stock. During the three months ended March 31, 2019 , the Company reissued 318,774 shares of common stock from the treasury shares at a weighted average price of $9.54 per share. Earnings Per Share Basic EPS is computed by dividing net income by the weighted average number of common shares outstanding during the period. The computation of diluted EPS is similar to the computation of basic EPS except that the denominator is increased to include the number of additional common shares that would have been outstanding, using the treasury stock method, if the dilutive potential common shares, including vested and nonvested stock options, nonvested restricted stock awards, nonvested restricted stock units, nonvested performance awards, consisting of performance share units (“PSU”), and nonvested deferred stock units, had been issued. The following is a presentation of the numerators and denominators of the basic and diluted EPS computations for the three months ended March 31, 2019 and 2018 : Three Months Ended March 31, 2019 2018 Numerator used in basic and diluted EPS: Net income $ 134.4 $ 133.0 Denominator: Weighted average number of common shares used in basic EPS 163,528,343 165,043,047 Effect of dilutive shares: Potential common shares issuable from stock options and stock awards 3,016,602 3,949,488 Weighted average number of common shares and dilutive potential common 166,544,945 168,992,535 The potential shares of common stock that were excluded from diluted EPS were 49,820 and 3,718 for the three months ended March 31, 2019 and 2018 , respectively, because the effect of including these potential shares was anti-dilutive. Accumulated Other Comprehensive Losses The following is a summary of accumulated other comprehensive losses as of March 31, 2019 and December 31, 2018 : 2019 2018 Foreign currency translation adjustment $ (430.0 ) $ (488.5 ) Pension and postretirement adjustment, net of tax (102.3 ) (103.4 ) Accumulated other comprehensive losses $ (532.3 ) $ (591.9 ) The before tax and after tax amounts of other comprehensive income for the three months ended March 31, 2019 and 2018 are summarized below: Before Tax Tax (Expense) Benefit After Tax For the Three Months Ended March 31, 2019 Foreign currency translation adjustment $ 58.5 $ — $ 58.5 Pension and postretirement adjustment before reclassifications 2.8 (0.7 ) 2.1 Amortization of net actuarial loss and prior service benefit (1) (1.3 ) 0.3 (1.0 ) Pension and postretirement adjustment 1.5 (0.4 ) 1.1 Total other comprehensive gain $ 60.0 $ (0.4 ) $ 59.6 For the Three Months Ended March 31, 2018 Foreign currency translation adjustment $ 102.7 $ — $ 102.7 Pension and postretirement adjustment before reclassifications 2.1 (0.5 ) 1.6 Amortization of net actuarial loss and prior service benefit (1) (0.9 ) 0.3 (0.6 ) Pension and postretirement adjustment 1.2 (0.2 ) 1.0 Total other comprehensive gain $ 103.9 $ (0.2 ) $ 103.7 _______________ (1) These accumulated other comprehensive loss components, before tax, are included under “Cost of revenues” and “Selling, general and administrative” in the accompanying condensed consolidated statements of operations. These components are also included in the computation of net periodic (benefit) cost (see Note 12 Pension and Postretirement Benefits for additional details).

Equity Compensation Plans

Equity Compensation Plans	3 Months Ended
	Mar. 31, 2019
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Equity Compensation Plans	Equity Compensation Plans: Equity Compensation Plans All of the Company’s outstanding stock options and restricted stock awards are covered under the 2013 Incentive Plan or 2009 Incentive Plan. Awards under the 2013 Incentive Plan may include one or more of the following types: (i) stock options (both nonqualified and incentive stock options), (ii) stock appreciation rights, (iii) restricted stock, (iv) restricted stock units, (v) performance awards, (vi) other share based awards, and (vii) cash. Employees, directors and consultants are eligible for awards under the 2013 Incentive Plan. The Company issued common stock under these plans from the Company’s treasury shares. As of March 31, 2019 , there were 5,644,400 shares of common stock reserved and available for future issuance under the 2013 Incentive Plan. Cash received from stock option exercises for the three months ended March 31, 2019 and 2018 was $11.6 million and $17.5 million , respectively. The Company granted equity awards to key employees of the Company. The nonqualified stock options have an exercise price equal to the adjusted closing price of the Company’s common stock on the grant date, with a ten -year contractual term. The fair value of the restricted stock is determined using the closing price of the Company’s common stock on the grant date. The restricted stock is not assignable or transferable until it becomes vested. PSUs vest at the end of a three -year performance period, subject to the recipient’s continued service. Each PSU represents the right to receive one share of Verisk common stock and the ultimate realization is based on the Company’s achievement of certain market performance criteria and may range from 0% to 200% of the recipient’s target levels of 100% established on the grant date. The fair value of PSUs is determined on the grant date using the Monte Carlo Simulation model. The Company recognizes the expense of the equity awards ratably over the vesting period, which could be up to four years . The expected term for the stock options granted was estimated based on studies of historical experience and projected exercise behavior. However, for certain awards granted, for which no historical exercise pattern exists, the expected term was estimated using the simplified method. The risk-free interest rate is based on the yield of U.S. Treasury zero coupon securities with a maturity equal to the expected term of the equity award. The volatility factor is calculated using historical daily closing prices over the most recent period that is commensurate with the expected term of the stock option award. The expected dividend yield was based on the Company’s expected annual dividend rate on the date of grant. A summary of the status of the stock options, restricted stock, and PSUs awarded under the 2013 Incentive Plan as of December 31, 2018 and March 31, 2019 and changes during the interim period are presented below: Stock Option Restricted Stock PSU Number Weighted Aggregate Number of Shares Weighted Average Grant Date Fair Value Per Share Number of Shares Weighted Average Grant Date Fair Value Per Share (in millions) Outstanding at December 31, 2018 6,820,046 $ 67.27 $ 284.9 533,335 $ 88.55 42,050 $ 140.70 Exercised or lapsed (307,270 ) $ 37.75 $ 26.8 (3,194 ) $ 100.09 — $ — Canceled, expired or forfeited (11,118 ) $ 96.39 (2,079 ) $ 97.71 — $ — Outstanding at March 31, 2019 6,501,658 $ 68.61 $ 418.7 528,062 $ 88.40 42,050 $ 140.70 Exercisable at March 31, 2019 4,057,449 $ 57.38 $ 306.8 Exercisable at December 31, 2018 4,360,117 $ 55.94 $ 231.5 Nonvested at March 31, 2019 2,444,209 528,062 42,050 Expected to vest at March 31, 2019 2,036,319 443,221 81,998 (1) _______________ (1) Includes estimated performance achievement Intrinsic value for stock options is calculated based on the exercise price of the underlying awards and the adjusted closing price of Verisk common stock as of the reporting date. Excess tax benefits from exercised stock options were recorded as income tax benefit in the condensed consolidated statements of operations. This tax benefit is calculated as the excess of the intrinsic value of options exercised and restricted stock lapsed in excess of compensation recognized for financial reporting purposes. The weighted average remaining contractual terms were 5.77 years and 4.54 years for outstanding and exercisable stock options, respectively, as of March 31, 2019 . On April 1, 2019, the Company granted 835,792 stock options, 149,335 shares of restricted stock and 51,792 PSUs to key employees. The stock options and restricted stock have a graded service vesting period of four years. The PSUs have a three -year performance period, subject to the recipients' continued service. The Company’s employee stock purchase plan (“ESPP”) offers eligible employees the opportunity to purchase shares of the Company’s common stock at a discount of its fair market value at the time of purchase. During the three months ended March 31, 2019 and 2018 , the Company issued 8,310 and 7,218 shares of common stock at a weighted discounted price of $126.35 and $98.80 for the ESPP, respectively. As of March 31, 2019 , there was $61.0 million of total unrecognized compensation costs, exclusive of the impact of vesting upon retirement eligibility, related to nonvested share-based compensation arrangements granted under the 2009 and 2013 Incentive Plans. That cost is expected to be recognized over a weighted average period of 2.32 years. The total grant date fair value of options vested was $4.4 million and $3.7 million during the three months ended March 31, 2019 and 2018 , respectively. The total grant date fair value of restricted stock vested during the three months ended March 31, 2019 and 2018 was $4.7 million and $4.2 million , respectively.

Pension and Postretirement Bene

Pension and Postretirement Benefits	3 Months Ended
	Mar. 31, 2019
Retirement Benefits [Abstract]
Pension and Postretirement Benefits	Pension and Postretirement Benefits: The Company maintained a frozen qualified defined benefit pension plan for certain of its employees through membership in the Pension Plan for Insurance Organizations (the “Pension Plan”), a multiple-employer trust. The Company has applied a cash balance formula to determine future benefits. Under the cash balance formula, each participant has an account, which is credited annually based on the interest earned on the previous year-end cash balance. The Company also has a frozen non-qualified supplemental cash balance plan (“SERP”) for certain employees. The SERP is funded from the general assets of the Company. The Company also provides certain healthcare and life insurance benefits to certain qualifying 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. The components of net periodic (benefit) cost for the three months ended March 31, are summarized below: For the Three Months Ended March 31, Pension Plan and SERP Postretirement Plan 2019 2018 2019 2018 Interest cost $ 3.7 $ 3.6 $ — $ 0.1 Expected return on plan assets (6.4 ) (7.7 ) — (0.1 ) Amortization of net actuarial loss 1.2 0.8 0.1 0.1 Net periodic (benefit) cost $ (1.5 ) $ (3.3 ) $ 0.1 $ 0.1 Employer contributions, net $ 0.2 $ 0.2 $ (0.3 ) $ (0.1 ) _______________ The expected contributions to the Pension Plan, SERP and Postretirement Plan for the year ending December 31, 2019 are consistent with the amounts previously disclosed as of December 31, 2018 .

Segment Reporting

Segment Reporting	3 Months Ended
	Mar. 31, 2019
Segment Reporting [Abstract]
Segment Reporting	Segment Reporting: ASC 280-10, Disclosures About Segments of an Enterprise and Related Information (“ASC 280-10”), establishes standards for reporting information about operating segments. ASC 280-10 requires that a public business enterprise reports financial and descriptive information about its reportable operating segments. Operating segments are components of an enterprise for which separate financial information is available that is evaluated regularly by the chief operating decision maker (“CODM”) in deciding how to allocate resources and in assessing performance. The Company’s President and CEO is identified as the CODM as defined by ASC 280-10. The operating segments of the Company are the following: Insurance, Energy and Specialized Markets, and Financial Services. These three operating segments are also the Company's reportable segments. Each of the reportable segments, Insurance, Energy and Specialized Markets, and Financial Services has a portion of its revenue from more than one of the three revenue types described within the Company's revenue recognition policy. Below is the overview of the solutions offered within each reportable segment. Insurance: The Company is the leading provider of statistical, actuarial and underwriting data for the U.S. P&C insurance industry. The Company’s databases include cleansed and standardized records describing premiums and losses in insurance transactions, casualty and property risk attributes for commercial buildings and their occupants and fire suppression capabilities of municipalities. The Company uses this data to create policy language and proprietary risk classifications that are industry standards and to generate prospective loss cost estimates used to price insurance policies, which are accessed via a hosted platform. The Company also develops solutions that its customers use to analyze key processes in managing risk. The Company’s combination of algorithms and analytic methods incorporates its proprietary data to generate solutions. In most cases, the Company’s customers integrate the solutions into their models, formulas or underwriting criteria in order to predict potential loss events, ranging from hurricanes to earthquakes. The Company develops catastrophe and extreme event models and offers solutions covering natural and man-made risks, including acts of terrorism. The Company further develops solutions that allow customers to quantify costs after loss events occur. The Company's multitier, multispectral terrestrial imagery and data acquisition, processing, analytics, and distribution system using the remote sensing and machine learning technologies help gather, store, process, and deliver geographic and spatially referenced information that supports uses in many markets. Additionally, the Company offers fraud-detection solutions including review of data on claim histories, analysis of claims to find emerging patterns of fraud, and identification of suspicious claims in the insurance sector. The Company’s underwriting & rating, insurance anti-fraud claims, catastrophe modeling, loss quantification and aerial imagery solutions are included in this segment. Energy and Specialized Markets: The Company is a leading provider of data analytics via hosted platform for the global energy, chemicals, and metals and mining industries. Its research and consulting solutions focus on exploration strategies and screening, asset development and acquisition, commodity markets, and corporate analysis in the areas of business environment, business improvement, business strategies, commercial advisory, and transaction support. The Company gathers and manages proprietary information, insight, and analysis on oil and gas fields, mines, refineries and other assets across the interconnected global energy sectors to advise customers in making asset investment and portfolio allocation decisions. The Company also helps businesses and governments better anticipate and manage climate and weather-related risks. The Company's analytical tools measure and observe environmental properties and translate those measurements into actionable information based on customer needs. The Company further offers a suite of data and information services that enable improved compliance with global Environmental Health and Safety requirements related to the safe manufacturing, distribution, transportation, usage, and disposal of chemicals and products. The Company’s energy business, environmental health and safety services and, weather risk solutions are included in this segment. Financial Services: The Company maintains a bank account consortia to provide competitive benchmarking, decisioning algorithms, business intelligence, and customized analytic services that help financial institutions, payment networks and processors, alternative lenders, regulators and merchants make better strategy, marketing, and risk decisions. Customers apply the Company's solutions in the areas of tailored data management and media effectiveness that include business intelligence platforms, profile views, mobile data solutions, enterprise database services, and fraud risk scoring algorithms for marketing, fraud, and risk mitigation. In addition, the Company's bankruptcy management solutions assist creditors, debt servicing businesses and credit services to enhance regulatory compliance by eliminating stay violation and portfolio valuation risk. The Company’s financial services and retail analytics solutions are included in this segment. The three aforementioned operating segments represent the segments for which discrete financial information is available and upon which operating results are regularly evaluated by the CODM in order to assess performance and allocate resources. The Company uses EBITDA as the profitability measure for making decisions regarding ongoing operations. EBITDA is net income before interest expense, provision for income taxes, depreciation and amortization of fixed and intangible assets. EBITDA is the measure of operating results used to assess corporate performance and optimal utilization of debt and acquisitions. Operating expenses consist of direct and indirect costs principally related to personnel, facilities, software license fees, consulting, travel, and third-party information services. Indirect costs are generally allocated to the segments using fixed rates established by management based upon estimated expense contribution levels and other assumptions that management considers reasonable. The Company does not allocate interest expense and provision for income taxes, since these items are not considered in evaluating the segment’s overall operating performance. In addition, the CODM does not evaluate the financial performance of each segment based on assets. See Note 3. Revenues for information on disaggregated revenues by type of service and by country. The following table provides the Company’s revenue and EBITDA by reportable segment for the three months ended March 31, 2019 and 2018 , and the reconciliation of EBITDA to operating income as shown in the accompanying condensed consolidated statements of operations: For the Three Months Ended March 31, 2019 March 31, 2018 Insurance Energy and Specialized Markets Financial Services Total Insurance Energy and Specialized Markets Financial Services Total Revenues $ 451.2 $ 130.8 $ 43.0 $ 625.0 $ 412.6 $ 125.5 $ 43.1 $ 581.2 Expenses: Cost of revenues (150.6 ) (56.5 ) (24.3 ) (231.4 ) (138.7 ) (55.7 ) (26.8 ) (221.2 ) Selling, general and (68.4 ) (37.6 ) (5.4 ) (111.4 ) (52.4 ) (34.1 ) (5.3 ) (91.8 ) Investment income and 0.1 (0.5 ) — (0.4 ) 2.5 (2.1 ) 0.2 0.6 EBITDA 232.3 36.2 13.3 281.8 224.0 33.6 11.2 268.8 Depreciation and (31.9 ) (10.3 ) (4.4 ) (46.6 ) (27.4 ) (11.0 ) (2.1 ) (40.5 ) Amortization of (6.8 ) (20.6 ) (5.8 ) (33.2 ) (5.4 ) (21.6 ) (6.2 ) (33.2 ) Less: Investment income (0.1 ) 0.5 — 0.4 (2.5 ) 2.1 (0.2 ) (0.6 ) Operating income $ 193.5 $ 5.8 $ 3.1 202.4 $ 188.7 $ 3.1 $ 2.7 194.5 Investment income and others, (0.4 ) 0.6 Interest expense (31.9 ) (32.8 ) Income before income $ 170.1 $ 162.3 Long-lived assets by country are provided below: March 31, 2019 December 31, 2018 Long-lived assets: U.S $ 2,537.0 $ 2,335.8 U.K. 2,662.3 2,595.5 Other countries 406.9 324.5 Total long-lived assets $ 5,606.2 $ 5,255.8

Related Parties

Related Parties	3 Months Ended
	Mar. 31, 2019
Related Party Transactions [Abstract]
Related Parties	Related Parties: The Company considers its stockholders that own more than 5.0% of the outstanding common stock to be related parties as defined within ASC 850, Related Party Disclosures . As of March 31, 2019 and December 31, 2018 , the Company had no material transactions with related parties.

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2019
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies: The Company is a party to legal proceedings with respect to a variety of matters in the ordinary course of business, including the matters described below. With respect to ongoing matters, the Company is unable, at the present time, to determine the ultimate resolution of or provide a reasonable estimate of the range of possible loss attributable to these matters or the impact they may have on the Company’s results of operations, financial position or cash flows. In the case of the 360Value Litigation, this is primarily because the matter is generally in early stages and discovery has not yet commenced. Although the Company believes it has strong defenses and intends to vigorously defend these matters, the Company could in the future incur judgments or enter into settlements of claims that could have a material adverse effect on its results of operations, financial position or cash flows. Xactware Solutions, Inc. Patent Litigation On October 8, 2015, the Company was served with a summons and complaint in an action titled Eagle View Technologies, Inc. and Pictometry International Group, Inc. v. Xactware Solutions, Inc. and Verisk Analytics, Inc. filed in the United States District Court for the District of New Jersey. The complaint alleges that the Company’s Roof InSight (now known as Geomni Roof), Property InSight product (now known as Geomni Property) and Aerial Sketch product in combination with the Company's Xactimate product infringe seven patents owned by Eagle View and Pictometry namely, Patent Nos. 8,078,436 (the "436 patent"), 8,170,840 (the "840 patent"), 8,209,152 (the "152 patent"), 8,542,880 (the "880 patent"), 8,818,770 (the "770 patent"), 8,823,732 (the "732 patent"), and 8,825,454 (the "454 patent"). On November 30, 2015, plaintiffs filed a First Amended Complaint adding Patent Nos. 9,129,376 (the "376 patent") and 9,135,737 (the "737 patent") to the lawsuit. The First Amended Complaint seeks an entry of judgment by the Court that defendants have and continue to directly infringe and/or indirectly infringe, including by way of inducement the Patents-in-Suit, permanent injunctive relief, damages, costs and attorney’s fees. On May 19, 2017, the District Court entered a Joint Stipulated Order of Partial Dismissal with Prejudice dismissing all claims or assertions pertaining to the 880 and 732 patents, and certain asserted claims of the 436, 840, 152, 770, 454, 376 and 737 patents (collectively the “Patents in Suit”). Eagle View further reduced the number of asserted claims pertaining to the Patents in Suit to 18 asserted claims. Thereafter, Eagle View dropped the 152 patent and further reduced the number of asserted claims from the six remaining Patents in Suit to 11 asserted claims. Fact discovery and expert discovery are now closed and defendants' summary judgment motions were fully submitted on October 26, 2018. On December 6, 2018, the Court denied Eagle View’s motion for summary judgment that a key prior art reference be excluded. On December 20, 2018, the Court denied the Company’s motion for summary judgment of equitable estoppel. On January 29, 2019, the Court denied the Company’s motion for summary judgment of unpatentability pursuant to Section 101 of the Patent Statute. The Court has ordered the commencement of trial on June 10, 2019. At this time, it is not reasonably possible to determine the ultimate resolution of, or estimate the liability related to, this matter. 360Value Litigation On December 10, 2018, the Company was served with a First Amended Complaint filed in the United States District Court for the Northern District of California titled Sheahan, et al. v. State Farm General Insurance Co., Inc., et al. The action is brought by California homeowners, on their own behalf and on behalf of an unspecified putative class of State Farm policyholders whose homes were damaged or lost during the Northern California wildfires of 2017, against State Farm as well as the Company, ISO, and Xactware Solutions, Inc. Plaintiffs served a Second Amended Complaint on January 6, 2019. Like the First Amended Complaint, it alleges that defendants through the use of the Company’s 360Value product conspired to under-insure plaintiffs’ homes by issuing undervalued policies and underestimating the costs of rebuilding those homes. Plaintiffs claim that defendants violated federal antitrust law as well as California consumer protection law and common law. Defendants filed their motions to dismiss the Second Amended Complaint on March 8, 2019. At this time, it is not reasonably possible to determine the ultimate resolution of, or estimate the liability related to, this matter.

Basis of Presentation and Sum_2

Basis of Presentation and Summary of Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2019
Accounting Policies [Abstract]
Leases	Leases In February 2016, the Financial Accounting Standards Board ("FASB") established ASC 842 which focused on increasing transparency and comparability related to leases among organizations by requiring the recognition of right-of-use (“ROU”) assets and lease liabilities on the balance sheet. The core principle of ASC 842 is that a lessee should recognize the assets and liabilities that arise from leases. This concept requires a lessee to recognize on the balance sheet an ROU asset representing the lessee’s right to use the underlying asset over the duration of the lease term and a liability to make lease payments. Most prominent among the changes in the standard is the recognition of ROU assets and lease liabilities by lessees for those leases classified as operating leases. Under the standard, disclosures are required to meet the objective of enabling users of financial statements to assess the amount, timing, and uncertainty of cash flows arising from leases. The Company is also required to recognize and measure leases existing at, or entered into after the adoption date using a modified retrospective approach, with certain practical expedients available. The Company adopted ASC 842 on January 1, 2019 using the modified retrospective approach and elected the transition relief package of practical expedients by applying previous accounting conclusions under ASC 840 to all leases that existed prior to the transition date. As a result, the Company did not reassess 1) whether existing or expired contracts contain leases, 2) lease classification for any existing or expired leases, and 3) whether lease origination costs qualified as initial direct costs. The Company did not elect the practical expedient to use hindsight in determining a lease term and impairment of the ROU assets at the adoption date. The Company did not separate lease components from non-lease components for the specified asset classes. The election applies to all operating leases where fixed rent payments incorporate common area maintenance. For leases where the election does not apply, the common area maintenance is billed by the landlord separately. Additionally, the Company did not apply the recognition requirements under ASC 842 to short-term leases, generally defined as lease term of less than one year. The Company has operating and finance leases for corporate offices, data centers, and certain equipment. The leases have remaining lease terms ranging from one year to fourteen years, some of which include the options to extend the leases for up to twenty years, and some of which include the options to terminate the leases within one year. As of March 31, 2019 , extension and termination options have not been considered in the calculation of the ROU assets and lease liabilities as the Company determined it was not reasonably certain that it will exercise those options. The Company determines if an arrangement is a lease at inception. The Company considers 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 ROU asset represents the Company’s right to use an underlying asset for the lease term and the lease liabilities represent its obligation to make lease payments arising from the lease. Operating lease ROU assets and lease liabilities are recognized at commencement date based on the present value of lease payments over the lease term. As the Company’s operating leases do not provide an implicit rate, the Company uses an incremental borrowing rate based on the information available on the adoption date in determining the present value of lease payments. The incremental borrowing rate was calculated by using the Company's credit rating on its publicly traded U.S. unsecured bonds and estimating an appropriate credit rating for similar secured debt instruments. The Company's calculated credit rating on secured debt instruments determined the yield curve used. The Company calculated an implied spread and applied the spreads to the risk-free interest rates, based on the yield of the U.S. Treasury zero coupon securities with a maturity equal to the remaining lease term, in determining the borrowing rates for all operating leases. The operating lease ROU assets include any lease payments made prior to the rent commencement date and exclude lease incentives. Lease expense for lease payments are recognized on a straight-line basis over the lease term. Operating lease transactions are included in "Operating lease right-of-use assets, net", and "Operating lease liabilities", current and noncurrent, within the accompanying condensed consolidated balance sheets. Finance leases are included in property and equipment under "Fixed assets, net", "Short-term debt and current portion of long-term debt", and "Long-term debt" within the accompanying condensed consolidated balance sheets.
Segment Reporting	ASC 280-10, Disclosures About Segments of an Enterprise and Related Information (“ASC 280-10”), establishes standards for reporting information about operating segments. ASC 280-10 requires that a public business enterprise reports financial and descriptive information about its reportable operating segments. Operating segments are components of an enterprise for which separate financial information is available that is evaluated regularly by the chief operating decision maker (“CODM”) in deciding how to allocate resources and in assessing performance. The Company’s President and CEO is identified as the CODM as defined by ASC 280-10.
Related Party Disclosures	The Company considers its stockholders that own more than 5.0% of the outstanding common stock to be related parties as defined within ASC 850, Related Party Disclosures . As of March 31, 2019 and December 31, 2018 , the Company had no material transactions with related parties.

Revenues (Tables)

Revenues (Tables)	3 Months Ended
	Mar. 31, 2019
Revenue from Contract with Customer [Abstract]
Disaggregation of Revenue	Disaggregated revenues by type of service and by country are provided below for the three months ended March 31, 2019 and 2018 . No individual country outside of the U.S. accounted for 10.0% or more of the Company's consolidated revenues for the three months ended March 31, 2019 or 2018 . Three Months Ended March 31, 2019 2018 Insurance: Underwriting & rating $ 303.5 $ 280.6 Claims 147.7 132.0 Total Insurance 451.2 412.6 Energy and Specialized Markets 130.8 125.5 Financial Services 43.0 43.1 Total revenues $ 625.0 $ 581.2 Three Months Ended March 31, 2019 2018 Revenues: U.S. $ 480.6 $ 449.5 U.K. 44.2 35.0 Other countries 100.2 96.7 Total revenues $ 625.0 $ 581.2

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	3 Months Ended
	Mar. 31, 2019
Fair Value Disclosures [Abstract]
Financial Assets and Liabilities Accounted at Fair Value	The following table summarizes fair value measurements by level for registered investment companies that were measured at fair value on a recurring basis: Quoted Prices in Active Markets for Identical Assets (Level 1) March 31, 2019 Registered investment companies (1) $ 3.7 December 31, 2018 Registered investment companies (1) $ 3.3 _______________ (1) Registered investment companies are classified as available-for-sale securities and are valued using quoted prices in active markets multiplied by the number of shares owned.
Summary of Carrying Value and Estimated Fair Value of Long-Term Debt	The following table summarizes the carrying value and estimated fair value of these financial instruments as of March 31, 2019 and December 31, 2018 , respectively: 2019 2018 Fair Value Hierarchy Carrying Value Estimated Fair Value Carrying Value Estimated Fair Value Financial instruments not carried at fair value: Long-term debt excluding finance Level 2 $ 2,425.9 $ 2,565.8 $ 2,031.0 $ 2,347.4

Leases (Tables)

Leases (Tables)	3 Months Ended
	Mar. 31, 2019
Leases [Abstract]
Schedule of New Accounting Pronouncements	The following table presents the cumulative effect of the changes made to the condensed consolidated balance sheet as of January 1, 2019 as a result of the adoption of ASC 842: December 31, 2018 Adjustments due to ASC 842 January 1, 2019 Prepaid expenses $ 63.9 $ (0.2 ) $ 63.7 Operating lease right-of-use assets, net $ — $ 247.8 $ 247.8 Accounts payable and accrued liabilities $ 263.5 $ (2.0 ) $ 261.5 Operating lease liabilities, current $ — $ 39.5 $ 39.5 Operating lease liabilities, noncurrent $ — $ 236.4 $ 236.4 Other liabilities $ 104.0 $ (26.3 ) $ 77.7
Lease, Cost and Other Information	The following table presents lease cost, cash paid for amounts included in the measurement of lease liabilities, ROU assets obtained, weighted-average remaining lease terms, and weighted-average discount rates for finance and operating leases for the three months ended March 31, 2019 . For the Three Months Ended March 31, 2019 Lease cost: Operating lease cost (1) $ 12.1 Finance lease cost Depreciation of finance lease assets (2) 2.8 Interest on finance lease liabilities (3) 0.4 Total lease cost $ 15.3 Other information: Cash paid for amounts included in the measurement of lease liabilities Operating cash outflows from operating leases $ (12.5 ) Operating cash outflows from finance leases $ (0.4 ) Financing cash outflows from finance leases $ (2.1 ) Weighted-average remaining lease term - operating leases 9.7 years Weighted-average remaining lease term - finance leases 2.8 years Weighted-average discount rate - operating leases 3.9 % Weighted-average discount rate - finance leases 4.4 % _______________ (1) Included in "Cost of revenues" and "Selling, general and administrative" expenses in the accompanying condensed consolidated statements of operations (2) Included in "Depreciation and amortization of fixed assets" in the accompanying condensed consolidated statements of operations (3) Included in "Interest expense" in the accompanying condensed consolidated statements of operations
Finance Lease, Liability, Maturity	Maturities of lease liabilities for the remainder of 2019 and the years through 2025 and thereafter are as follows: March 31, 2019 Years Ending Operating Leases Finance Leases 2019 $ 34.5 $ 9.3 2020 47.3 9.9 2021 37.4 8.0 2022 34.0 2.5 2023 29.1 — 2024 19.7 — 2025 and thereafter 128.0 — Total lease payments 330.0 29.7 Less amount representing interest (62.5 ) (1.8 ) Present value of total lease payments $ 267.5 $ 27.9
Lessee, Operating Lease, Liability, Maturity	Maturities of lease liabilities for the remainder of 2019 and the years through 2025 and thereafter are as follows: March 31, 2019 Years Ending Operating Leases Finance Leases 2019 $ 34.5 $ 9.3 2020 47.3 9.9 2021 37.4 8.0 2022 34.0 2.5 2023 29.1 — 2024 19.7 — 2025 and thereafter 128.0 — Total lease payments 330.0 29.7 Less amount representing interest (62.5 ) (1.8 ) Present value of total lease payments $ 267.5 $ 27.9

Acquisitions (Tables)

Acquisitions (Tables)	3 Months Ended
	Mar. 31, 2019
Business Combinations [Abstract]
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed	The preliminary purchase price allocation of the CaaS business resulted in the following: CaaS Cash and cash equivalents $ 3.7 Other current assets 3.0 Fixed assets 0.1 Intangible assets 34.4 Goodwill 32.8 Deferred income taxes, net 0.1 Total assets acquired 74.1 Current liabilities (1.3 ) Net assets acquired 72.8 Cash acquired (3.7 ) Net cash purchase price $ 69.1
Finite-Lived and Indefinite-Lived Intangible Assets Acquired as Part of Business Combination	The preliminary amounts assigned to intangible assets by type for the CaaS business are summarized in the table below: Weighted Average Useful Life Total Technology-based 7 years $ 4.0 Marketing-related 3 years 0.3 Customer-related 12 years 15.5 Database-related 10 years 14.6 Total intangible assets $ 34.4

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	3 Months Ended
	Mar. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Summary of Change in Goodwill	The following is a summary of the change in goodwill from December 31, 2018 through March 31, 2019 , both in total and as allocated to the Company’s operating segments: Insurance Energy and Specialized Markets Financial Services Total Goodwill, net at December 31, 2018 (1) $ 833.8 $ 2,054.7 $ 473.0 $ 3,361.5 Current period acquisitions — 32.8 — 32.8 Purchase accounting reclassification (0.1 ) — (0.1 ) (0.2 ) Foreign currency translation 7.3 30.2 0.1 37.6 Goodwill, net at March 31, 2019 (1) $ 841.0 $ 2,117.7 $ 473.0 $ 3,431.7 _______________ (1) These balances are net of accumulated impairment charges of $3.2 million that occurred prior to December 31, 2018 .
Intangible Assets and Related Accumulated Amortization	The Company’s intangible assets and related accumulated amortization consisted of the following: Weighted Average Useful Life Cost Accumulated Amortization Net March 31, 2019 Technology-based 8 years $ 446.7 $ (266.4 ) $ 180.3 Marketing-related 16 years 260.8 (82.2 ) 178.6 Contract-based 6 years 5.0 (5.0 ) — Customer-related 14 years 741.1 (238.9 ) 502.2 Database-related 19 years 474.6 (86.7 ) 387.9 Total intangible assets $ 1,928.2 $ (679.2 ) $ 1,249.0 December 31, 2018 Technology-based 8 years $ 438.8 $ (255.5 ) $ 183.3 Marketing-related 16 years 255.8 (77.2 ) 178.6 Contract-based 6 years 5.0 (5.0 ) — Customer-related 14 years 718.2 (223.9 ) 494.3 Database-related 19 years 450.5 (78.9 ) 371.6 Total intangible assets $ 1,868.3 $ (640.5 ) $ 1,227.8
Estimated Amortization Expense	Estimated amortization expense for the remainder of 2019 and the years through 2023 and thereafter for intangible assets subject to amortization is as follows: Year Amount 2019 $ 102.6 2020 134.6 2021 124.2 2022 112.6 2023 100.0 2024 and thereafter 675.0 $ 1,249.0

Debt (Tables)

Debt (Tables)	3 Months Ended
	Mar. 31, 2019
Debt Disclosure [Abstract]
Short-Term and Long-Term Debt	The following table presents short-term and long-term debt by issuance as of March 31, 2019 and December 31, 2018 : Issuance Date Maturity Date 2019 2018 Short-term debt and current portion of long-term debt: Syndicated revolving credit facility Various Various $ 170.0 $ 415.0 Senior notes: 4.875% senior notes 12/8/2011 1/15/2019 — 250.0 Finance lease liabilities (1) Various Various 10.5 7.8 Short-term debt and current portion of long-term 180.5 672.8 Long-term debt: Senior notes: 4.125% senior notes, less unamortized discount 03/06/2019 03/15/2029 394.0 — 4.000% senior notes, less unamortized discount 05/15/2015 06/15/2025 892.3 892.1 5.500% senior notes, less unamortized discount 05/15/2015 06/15/2045 345.4 345.3 4.125% senior notes, less unamortized discount 09/12/2012 09/12/2022 347.9 347.7 5.800% senior notes, less unamortized discount 04/06/2011 05/01/2021 448.9 448.8 Finance lease liabilities (1) Various Various 17.4 19.5 Syndicated revolving credit facility debt issuance Various Various (2.6 ) (2.9 ) Long-term debt 2,443.3 2,050.5 Total debt $ 2,623.8 $ 2,723.3 _______________ (1) Refer to Note 5 Leases

Stockholders' Equity (Tables)

Stockholders' Equity (Tables)	3 Months Ended
	Mar. 31, 2019
Equity [Abstract]
Computation of Basic and Diluted Earnings Per Share	The following is a presentation of the numerators and denominators of the basic and diluted EPS computations for the three months ended March 31, 2019 and 2018 : Three Months Ended March 31, 2019 2018 Numerator used in basic and diluted EPS: Net income $ 134.4 $ 133.0 Denominator: Weighted average number of common shares used in basic EPS 163,528,343 165,043,047 Effect of dilutive shares: Potential common shares issuable from stock options and stock awards 3,016,602 3,949,488 Weighted average number of common shares and dilutive potential common 166,544,945 168,992,535
Summary of Accumulated Other Comprehensive Losses	The following is a summary of accumulated other comprehensive losses as of March 31, 2019 and December 31, 2018 : 2019 2018 Foreign currency translation adjustment $ (430.0 ) $ (488.5 ) Pension and postretirement adjustment, net of tax (102.3 ) (103.4 ) Accumulated other comprehensive losses $ (532.3 ) $ (591.9 )
Schedule of Amounts Recognized in Other Comprehensive Income (Loss)	The before tax and after tax amounts of other comprehensive income for the three months ended March 31, 2019 and 2018 are summarized below: Before Tax Tax (Expense) Benefit After Tax For the Three Months Ended March 31, 2019 Foreign currency translation adjustment $ 58.5 $ — $ 58.5 Pension and postretirement adjustment before reclassifications 2.8 (0.7 ) 2.1 Amortization of net actuarial loss and prior service benefit (1) (1.3 ) 0.3 (1.0 ) Pension and postretirement adjustment 1.5 (0.4 ) 1.1 Total other comprehensive gain $ 60.0 $ (0.4 ) $ 59.6 For the Three Months Ended March 31, 2018 Foreign currency translation adjustment $ 102.7 $ — $ 102.7 Pension and postretirement adjustment before reclassifications 2.1 (0.5 ) 1.6 Amortization of net actuarial loss and prior service benefit (1) (0.9 ) 0.3 (0.6 ) Pension and postretirement adjustment 1.2 (0.2 ) 1.0 Total other comprehensive gain $ 103.9 $ (0.2 ) $ 103.7 _______________ (1) These accumulated other comprehensive loss components, before tax, are included under “Cost of revenues” and “Selling, general and administrative” in the accompanying condensed consolidated statements of operations. These components are also included in the computation of net periodic (benefit) cost (see Note 12 Pension and Postretirement Benefits for additional details).

Equity Compensation Plans (Tabl

Equity Compensation Plans (Tables)	3 Months Ended
	Mar. 31, 2019
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Summary of Stock Options Outstanding	A summary of the status of the stock options, restricted stock, and PSUs awarded under the 2013 Incentive Plan as of December 31, 2018 and March 31, 2019 and changes during the interim period are presented below: Stock Option Restricted Stock PSU Number Weighted Aggregate Number of Shares Weighted Average Grant Date Fair Value Per Share Number of Shares Weighted Average Grant Date Fair Value Per Share (in millions) Outstanding at December 31, 2018 6,820,046 $ 67.27 $ 284.9 533,335 $ 88.55 42,050 $ 140.70 Exercised or lapsed (307,270 ) $ 37.75 $ 26.8 (3,194 ) $ 100.09 — $ — Canceled, expired or forfeited (11,118 ) $ 96.39 (2,079 ) $ 97.71 — $ — Outstanding at March 31, 2019 6,501,658 $ 68.61 $ 418.7 528,062 $ 88.40 42,050 $ 140.70 Exercisable at March 31, 2019 4,057,449 $ 57.38 $ 306.8 Exercisable at December 31, 2018 4,360,117 $ 55.94 $ 231.5 Nonvested at March 31, 2019 2,444,209 528,062 42,050 Expected to vest at March 31, 2019 2,036,319 443,221 81,998 (1) _______________ (1) Includes estimated performance achievement

Pension and Postretirement Be_2

Pension and Postretirement Benefits (Tables)	3 Months Ended
	Mar. 31, 2019
Retirement Benefits [Abstract]
Components of Net Periodic (Benefit) Cost	The components of net periodic (benefit) cost for the three months ended March 31, are summarized below: For the Three Months Ended March 31, Pension Plan and SERP Postretirement Plan 2019 2018 2019 2018 Interest cost $ 3.7 $ 3.6 $ — $ 0.1 Expected return on plan assets (6.4 ) (7.7 ) — (0.1 ) Amortization of net actuarial loss 1.2 0.8 0.1 0.1 Net periodic (benefit) cost $ (1.5 ) $ (3.3 ) $ 0.1 $ 0.1 Employer contributions, net $ 0.2 $ 0.2 $ (0.3 ) $ (0.1 ) _______________

Segment Reporting (Tables)

Segment Reporting (Tables)	3 Months Ended
	Mar. 31, 2019
Segment Reporting [Abstract]
Reconciliations To Income Before Income Taxes	The following table provides the Company’s revenue and EBITDA by reportable segment for the three months ended March 31, 2019 and 2018 , and the reconciliation of EBITDA to operating income as shown in the accompanying condensed consolidated statements of operations: For the Three Months Ended March 31, 2019 March 31, 2018 Insurance Energy and Specialized Markets Financial Services Total Insurance Energy and Specialized Markets Financial Services Total Revenues $ 451.2 $ 130.8 $ 43.0 $ 625.0 $ 412.6 $ 125.5 $ 43.1 $ 581.2 Expenses: Cost of revenues (150.6 ) (56.5 ) (24.3 ) (231.4 ) (138.7 ) (55.7 ) (26.8 ) (221.2 ) Selling, general and (68.4 ) (37.6 ) (5.4 ) (111.4 ) (52.4 ) (34.1 ) (5.3 ) (91.8 ) Investment income and 0.1 (0.5 ) — (0.4 ) 2.5 (2.1 ) 0.2 0.6 EBITDA 232.3 36.2 13.3 281.8 224.0 33.6 11.2 268.8 Depreciation and (31.9 ) (10.3 ) (4.4 ) (46.6 ) (27.4 ) (11.0 ) (2.1 ) (40.5 ) Amortization of (6.8 ) (20.6 ) (5.8 ) (33.2 ) (5.4 ) (21.6 ) (6.2 ) (33.2 ) Less: Investment income (0.1 ) 0.5 — 0.4 (2.5 ) 2.1 (0.2 ) (0.6 ) Operating income $ 193.5 $ 5.8 $ 3.1 202.4 $ 188.7 $ 3.1 $ 2.7 194.5 Investment income and others, (0.4 ) 0.6 Interest expense (31.9 ) (32.8 ) Income before income $ 170.1 $ 162.3
Long-lived Assets by Geographic Areas	Long-lived assets by country are provided below: March 31, 2019 December 31, 2018 Long-lived assets: U.S $ 2,537.0 $ 2,335.8 U.K. 2,662.3 2,595.5 Other countries 406.9 324.5 Total long-lived assets $ 5,606.2 $ 5,255.8

Basis of Presentation and Sum_3

Basis of Presentation and Summary of Significant Accounting Policies (Details)	3 Months Ended
	Mar. 31, 2019
Lessee, Lease, Description [Line Items]
Operating and financing lease, extension lease term	20 years
Operating and financing lease, option to terminate	1 year
Minimum
Lessee, Lease, Description [Line Items]
Operating and financing lease, remaining lease term	1 year
Maximum
Lessee, Lease, Description [Line Items]
Operating and financing lease, remaining lease term	14 years

Revenues - Disaggregated Revenu

Revenues - Disaggregated Revenues (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Disaggregation of Revenue [Line Items]
Revenues	$ 625	$ 581.2
U.S.
Disaggregation of Revenue [Line Items]
Revenues	480.6	449.5
U.K.
Disaggregation of Revenue [Line Items]
Revenues	44.2	35
Other countries
Disaggregation of Revenue [Line Items]
Revenues	100.2	96.7
Insurance
Disaggregation of Revenue [Line Items]
Revenues	451.2	412.6
Insurance | Underwriting & rating
Disaggregation of Revenue [Line Items]
Revenues	303.5	280.6
Insurance | Claims
Disaggregation of Revenue [Line Items]
Revenues	147.7	132
Energy and Specialized Markets
Disaggregation of Revenue [Line Items]
Revenues	130.8	125.5
Financial Services
Disaggregation of Revenue [Line Items]
Revenues	$ 43	$ 43.1

Revenues - (Details)

Revenues - (Details) - USD ($)	3 Months Ended
	Mar. 31, 2019	Dec. 31, 2018
Revenue from Contract with Customer [Abstract]
Contract with customer, asset	$ 0	$ 0
Deferred revenues	607,700,000	$ 385,100,000
Increase in contract liabilities	222,600,000
Billings paid in advance	314,500,000
Revenue recognized	91,900,000
Revenue, remaining performance obligation	$ 607,700,000
Revenue, remaining performance obligation, current, percentage	99.00%

Fair Value Measurements - Fina

Fair Value Measurements - Financial Assets and Liabilities Accounted at Fair Value (Details) - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
Recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Registered investment companies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Registered investment companies	$ 3.7	$ 3.3

Fair Value Measurements - Summ

Fair Value Measurements - Summary of Carrying Value and Estimated Fair Value of Long-Term Debt (Details) - Level 2 - Recurring basis - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt excluding finance lease liabilities, carrying value	$ 2,425.9	$ 2,031
Long-term debt excluding finance lease liabilities, estimated fair value	$ 2,565.8	$ 2,347.4

Fair Value Measurements - (Deta

Fair Value Measurements - (Details) - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Non-participating interests, percentage	10.00%
Equity method investments	$ 8.4	$ 8.4
Limited Partner
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Equity method investments	$ 11	$ 5.9

Leases - Cumulative Effect (Det

Leases - Cumulative Effect (Details) - USD ($) $ in Millions	Mar. 31, 2019	Jan. 01, 2019	Dec. 31, 2018
Lessee, Lease, Description [Line Items]
Prepaid expenses	$ 59.8	$ 63.7	$ 63.9
Operating lease right-of-use assets, net	239.6	247.8	0
Accounts payable and accrued liabilities	236.3	261.5	263.5
Operating lease liabilities, current	37	39.5	0
Operating lease liabilities, noncurrent	230.5	236.4	0
Other liabilities	$ 84.2	77.7	$ 104
Accounting Standards Update 2016-02
Lessee, Lease, Description [Line Items]
Prepaid expenses		(0.2)
Operating lease right-of-use assets, net		247.8
Accounts payable and accrued liabilities		(2)
Operating lease liabilities, current		39.5
Operating lease liabilities, noncurrent		236.4
Other liabilities		$ (26.3)

Leases - Lease Cost and Other I

Leases - Lease Cost and Other Information (Details) $ in Millions	3 Months Ended
	Mar. 31, 2019USD ($)
Leases [Abstract]
Operating lease cost	$ 12.1
Depreciation of finance lease assets	2.8
Interest on finance lease liabilities	0.4
Total lease cost	15.3
Operating cash outflows from operating leases	(12.5)
Operating cash outflows from finance leases	(0.4)
Financing cash outflows from finance leases	$ (2.1)
Weighted-average remaining lease term - operating leases	9 years 8 months
Weighted-average remaining lease term - finance leases	2 years 9 months
Weighted-average discount rate - operating leases	3.90%
Weighted-average discount rate - finance leases	4.40%

Leases (Details)

Leases (Details) $ in Millions	Mar. 31, 2019USD ($)
Leases [Abstract]
Finance lease, right-of-use asset, net	$ 28.5
Finance lease	$ 27.9

Leases - Maturities (Details)

Leases - Maturities (Details) $ in Millions	Mar. 31, 2019USD ($)
Operating Leases
2019	$ 34.5
2020	47.3
2021	37.4
2022	34
2023	29.1
2024	19.7
2025 and thereafter	128
Total lease payments	330
Less amount representing interest	(62.5)
Present value of total lease payments	267.5
Finance Leases
2019	9.3
2020	9.9
2021	8
2022	2.5
2023	0
2024	0
2025 and thereafter	0
Total lease payments	29.7
Less amount representing interest	(1.8)
Present value of total lease payments	$ 27.9

Acquisitions - Additional Info

Acquisitions - Additional Information (Details) - USD ($) $ in Millions	Mar. 29, 2019	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Business Acquisition [Line Items]
Current portion of escrow		$ 31.3		$ 31.2
Escrow deposit		8.9		8.7
Contingent consideration, payable		21		12.7
Acquisition related liabilities		30.6		$ 28.3
CaaS
Business Acquisition [Line Items]
Consideration transferred	$ 69.1
Transaction costs		0.9	$ 0.7
Non tax deductible, goodwill		$ 2.9

Acquisitions - Assets Acquired

Acquisitions - Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Millions	Mar. 29, 2019	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Business Acquisition [Line Items]
Goodwill		$ 3,431.7		$ 3,361.5
Cash acquired		$ (3.7)	$ (2.3)
CaaS
Business Acquisition [Line Items]
Cash and cash equivalents	$ 3.7
Other current assets	3
Fixed assets	0.1
Intangible assets	34.4
Goodwill	32.8
Deferred income taxes, net	0.1
Total assets acquired	74.1
Current liabilities	(1.3)
Net assets acquired	72.8
Cash acquired	(3.7)
Net cash purchase price	$ 69.1

Acquisitions - Intangible Asse

Acquisitions - Intangible Assets Acquired (Details) - CaaS $ in Millions	Mar. 29, 2019USD ($)
Business Acquisition [Line Items]
Finite-lived intangible assets acquired	$ 34.4
Technology-related
Business Acquisition [Line Items]
Weighted average useful life (in years)	7 years
Finite-lived intangible assets acquired	$ 4
Marketing-related
Business Acquisition [Line Items]
Weighted average useful life (in years)	3 years
Finite-lived intangible assets acquired	$ 0.3
Customer-related
Business Acquisition [Line Items]
Weighted average useful life (in years)	12 years
Finite-lived intangible assets acquired	$ 15.5
Database-related
Business Acquisition [Line Items]
Weighted average useful life (in years)	10 years
Finite-lived intangible assets acquired	$ 14.6

Goodwill and Intangible Asset_2

Goodwill and Intangible Assets - Summary of Change in Goodwill (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Dec. 31, 2018
Goodwill [Roll Forward]
Goodwill, beginning balance	$ 3,361.5
Current period acquisitions	32.8
Purchase accounting reclassification	(0.2)
Foreign currency translation	37.6
Goodwill, ending balance	3,431.7
Accumulated impairment loss		$ 3.2
Operating Segments | Insurance
Goodwill [Roll Forward]
Goodwill, beginning balance	833.8
Current period acquisitions	0
Purchase accounting reclassification	(0.1)
Foreign currency translation	7.3
Goodwill, ending balance	841
Operating Segments | Energy and Specialized Markets
Goodwill [Roll Forward]
Goodwill, beginning balance	2,054.7
Current period acquisitions	32.8
Purchase accounting reclassification	0
Foreign currency translation	30.2
Goodwill, ending balance	2,117.7
Operating Segments | Financial Services
Goodwill [Roll Forward]
Goodwill, beginning balance	473
Current period acquisitions	0
Purchase accounting reclassification	(0.1)
Foreign currency translation	0.1
Goodwill, ending balance	$ 473

Goodwill and Intangible Asset_3

Goodwill and Intangible Assets - Additional Information (Details) - USD ($)	3 Months Ended
	Mar. 31, 2019	Jun. 30, 2018	Mar. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill, impairment loss		$ 0
Amortization of intangible assets	$ 33,200,000		$ 33,200,000

Goodwill and Intangible Asset_4

Goodwill and Intangible Assets - Intangible Assets and Related Accumulated Amortization (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2019	Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]
Cost	$ 1,928.2	$ 1,868.3
Accumulated Amortization	(679.2)	(640.5)
Net	$ 1,249	$ 1,227.8
Technology-based
Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life (in years)	8 years	8 years
Cost	$ 446.7	$ 438.8
Accumulated Amortization	(266.4)	(255.5)
Net	$ 180.3	$ 183.3
Marketing-related
Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life (in years)	16 years	16 years
Cost	$ 260.8	$ 255.8
Accumulated Amortization	(82.2)	(77.2)
Net	$ 178.6	$ 178.6
Contract-based
Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life (in years)	6 years	6 years
Cost	$ 5	$ 5
Accumulated Amortization	(5)	(5)
Net	$ 0	$ 0
Customer-related
Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life (in years)	14 years	14 years
Cost	$ 741.1	$ 718.2
Accumulated Amortization	(238.9)	(223.9)
Net	$ 502.2	$ 494.3
Database-related
Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life (in years)	19 years	19 years
Cost	$ 474.6	$ 450.5
Accumulated Amortization	(86.7)	(78.9)
Net	$ 387.9	$ 371.6

Goodwill and Intangible Asset_5

Goodwill and Intangible Assets - Estimated Amortization Expense (Details) $ in Millions	Mar. 31, 2019USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
2019	$ 102.6
2020	134.6
2021	124.2
2022	112.6
2023	100
2024 and thereafter	675
Total	$ 1,249

Income Taxes (Details)

Income Taxes (Details)	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Income Tax Disclosure [Abstract]
Effective tax rate	21.00%	18.00%

Debt - Short-Term and Long-Ter

Debt - Short-Term and Long-Term Debt (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 06, 2019	Jan. 15, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Finance lease liabilities, current	$ 10.5
Finance lease liabilities, current				$ 7.8
Short-term debt and current portion of long-term debt	180.5			672.8
Finance lease liabilities, noncurrent	17.4
Finance lease liabilities, noncurrent				19.5
Syndicated revolving credit facility debt issuance costs	(2.6)			(2.9)
Long-term debt	2,443.3			2,050.5
Total debt	$ 2,623.8			2,723.3
4.875% Senior Note
Debt Instrument [Line Items]
Debt issuance date	Dec. 8, 2011
Debt maturity date	Jan. 15, 2019
Short-term debt	$ 0			250
Long term debt instrument interest rate stated percentage	4.875%		4.875%
4.125% Senior Note
Debt Instrument [Line Items]
Debt issuance date	Mar. 6, 2019
Debt maturity date	Mar. 15, 2029
Long-term debt	$ 394			0
Long term debt instrument interest rate stated percentage	4.125%	4.125%
Unamortized discount on senior notes	$ 6	$ 2.1		0
4.000% Senior Note
Debt Instrument [Line Items]
Debt issuance date	May 15, 2015
Debt maturity date	Jun. 15, 2025
Long-term debt	$ 892.3			892.1
Long term debt instrument interest rate stated percentage	4.00%
Unamortized discount on senior notes	$ 7.7			7.9
5.500% Senior Note
Debt Instrument [Line Items]
Debt issuance date	May 15, 2015
Debt maturity date	Jun. 15, 2045
Long-term debt	$ 345.4			345.3
Long term debt instrument interest rate stated percentage	5.50%
Unamortized discount on senior notes	$ 4.6			4.7
4.125% Senior Note
Debt Instrument [Line Items]
Debt issuance date	Sep. 12, 2012
Debt maturity date	Sep. 12, 2022
Long-term debt	$ 347.9			347.7
Long term debt instrument interest rate stated percentage	4.125%
Unamortized discount on senior notes	$ 2.1			2.3
5.800% Senior Note
Debt Instrument [Line Items]
Debt issuance date	Apr. 6, 2011
Debt maturity date	May 1, 2021
Long-term debt	$ 448.9			448.8
Long term debt instrument interest rate stated percentage	5.80%
Unamortized discount on senior notes	$ 1.1			1.2
Line of Credit
Debt Instrument [Line Items]
Syndicated revolving credit facility	$ 170			$ 415

Debt - Additional Information

Debt - Additional Information (Details) - USD ($)	Jan. 15, 2019	Apr. 30, 2019	Mar. 31, 2019	Mar. 06, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Long-term debt, gross			$ 2,450,000,000		$ 2,300,000,000
Line of credit facility, remaining borrowing capacity			1,324,600,000		1,078,900,000
Revolving Credit Facility
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity			1,500,000,000
Revolving Credit Facility | Subsequent Event
Debt Instrument [Line Items]
Repayments of debt		$ 70,000,000
Letters of Credit
Debt Instrument [Line Items]
Line of credit facility, remaining borrowing capacity			$ 5,400,000		6,100,000
4.875% Senior Note
Debt Instrument [Line Items]
Long term debt instrument interest rate stated percentage	4.875%		4.875%
Repayments of debt	$ 250,000,000
4.125% Senior Note
Debt Instrument [Line Items]
Long term debt instrument interest rate stated percentage			4.125%	4.125%
Long term debt				$ 400,000,000
Unamortized discount on senior notes			$ 6,000,000	2,100,000	$ 0
Debt issuance costs, net				$ 3,900,000

Stockholders' Equity - Additio

Stockholders' Equity - Additional Information (Details) - USD ($)	Apr. 29, 2019	Apr. 01, 2019	Mar. 29, 2019	Feb. 13, 2019	Jan. 02, 2019	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Class of Stock [Line Items]
Preferred stock, authorized (in shares)						80,000,000		80,000,000
Preferred stock, par value (in dollars per share)						$ 0.001		$ 0.001
Share price (per share)						$ 133	$ 108.83	133		$ 108.83
Common stock, dividends, per share, declared (in dollars per share)				$ 0.25				$ 0.25
Dividends			$ 40,900,000					$ 40,900,000	$ 0
Cumulative value of shares repurchased						$ 2,947,400,000		$ 2,947,400,000
Treasury stock, shares acquired (in shares)								636,590		382,508
Treasury stock acquired								$ 75,000,000	$ 39,800,000
Accelerated share repurchases, purchase price		$ 40,000,000				$ 50,000,000	$ 75,000,000
Accelerated share repurchases, initial price, shares (in shares)		300,752			636,590			636,590
Accelerated share repurchases, initial price paid per share (in dollars per share)		$ 133						$ 117.82
Treasury stock (in shares)						380,350,444	380,032,628	380,350,444		380,032,628
Reissued of common stock (in shares)								318,774
Weighted average price per share (in dollars per share)						$ 9.54		$ 9.54
Common stock shares excluded from diluted EPS (in shares)								49,820	3,718
Common Stock Issued
Class of Stock [Line Items]
Share repurchase program, authorized capacity						$ 3,300,000,000		$ 3,300,000,000
Available shares for repurchase						$ 352,600,000		$ 352,600,000
Subsequent Event
Class of Stock [Line Items]
Common stock, dividends, per share, declared (in dollars per share)	$ 0.25

Stockholders' Equity - Computa

Stockholders' Equity - Computation of Basic and Diluted Earnings Per Share (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Numerator used in basic and diluted EPS:
Net income	$ 134.4	$ 133
Denominator:
Weighted average number of common shares used in basic EPS (in shares)	163,528,343	165,043,047
Effect of dilutive shares:
Potential common shares issuable from stock options and stock awards (in shares)	3,016,602	3,949,488
Weighted average number of common shares and dilutive potential common shares used in diluted EPS (in shares)	166,544,945	168,992,535

Stockholders' Equity - Summary

Stockholders' Equity - Summary of Accumulated Other Comprehensive Losses (Details) - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
Equity [Abstract]
Foreign currency translation adjustment	$ (430)	$ (488.5)
Pension and postretirement adjustment, net of tax	(102.3)	(103.4)
Accumulated other comprehensive losses	$ (532.3)	$ (591.9)

Stockholders' Equity - Before

Stockholders' Equity - Before Tax and After Tax Amounts of Other Comprehensive Income (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Before Tax
Other comprehensive income	$ 60	$ 103.9
Tax (Expense) Benefit
Other comprehensive income	(0.4)	(0.2)
After Tax
Other comprehensive income	59.6	103.7
Foreign Currency Adjustment
Before Tax
Other comprehensive income	58.5	102.7
Tax (Expense) Benefit
Other comprehensive income	0	0
After Tax
Other comprehensive income	58.5	102.7
Pension and Postretirement Adjustment
Before Tax
Other comprehensive income (loss) before reclassifications	2.8	2.1
Reclassification from accumulated other comprehensive income	(1.3)	(0.9)
Other comprehensive income	1.5	1.2
Tax (Expense) Benefit
Other comprehensive income (loss) before reclassifications	(0.7)	(0.5)
Reclassification from accumulated other comprehensive income	0.3	0.3
Other comprehensive income	(0.4)	(0.2)
After Tax
Other comprehensive income (loss) before reclassifications	2.1	1.6
Reclassification from accumulated other comprehensive income	(1)	(0.6)
Other comprehensive income	$ 1.1	$ 1

Equity Compensation Plans - Ad

Equity Compensation Plans - Additional Information (Details) - USD ($) $ / shares in Units, $ in Millions	Apr. 01, 2019	Mar. 31, 2019	Mar. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Proceeds from stock options exercised		$ 11.6	$ 17.5
Nonqualified stock options contractual term (in years)		10 years
Vesting period		4 years
Exercisable, contractual term		5 years 9 months 7 days
Outstanding, contractual term		4 years 6 months 16 days
Common stock issued, discounted price (in dollars per share)		$ 126.35	$ 98.80
Total unrecognized compensation cost related to nonvested share-based compensation arrangements		$ 61
Unrecognized compensation cost weighted average period (in years)		2 years 3 months 25 days
Grant date fair value options		$ 4.4	$ 3.7
Grant date fair value restricted stock vested		$ 4.7	$ 4.2
Subsequent Event
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options granted (in shares)	835,792
Performance shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		3 years
Number of shares per award		1
Target levels		100.00%
Performance shares | Subsequent Event
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years
Stock granted (in shares)	51,792
Stock options | Subsequent Event
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	4 years
Restricted stock | Subsequent Event
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	4 years
Stock granted (in shares)	149,335
Employee stock purchase plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares issued in period (in shares)		8,310	7,218
2013 Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock reserved and available for future issuance (in shares)		5,644,400
Minimum | Performance shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Target levels		0.00%
Maximum | Performance shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Target levels		200.00%

Equity Compensation Plans - Su

Equity Compensation Plans - Summary of Stock Activity (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 31, 2019	Dec. 31, 2018
Number of Options/Shares
Outstanding, beginning balance (in shares)	6,820,046
Exercised or lapsed (in shares)	(307,270)
Cancelled or expired (in shares)	(11,118)
Outstanding, ending balance (in shares)	6,501,658
Options exercisable (in shares)	4,057,449	4,360,117
Nonvested (in shares)	2,444,209
Expected to vest (in shares)	2,036,319
Weighted Average Exercise Price
Outstanding, beginning balance (in dollars per share)	$ 67.27
Exercised or lapsed (in dollars per share)	37.75
Cancelled or expired (in dollars per share)	96.39
Outstanding, ending balance (in dollars per share)	68.61
Options exercisable (in dollars per share)	$ 57.38	$ 55.94
Aggregate Intrinsic Value
Outstanding	$ 418.7	$ 284.9
Exercised or lapsed	26.8
Aggregate intrinsic value, options exercisable	$ 306.8	$ 231.5
Restricted stock
Number of Options/Shares
Outstanding, beginning balance (in shares)	533,335
Exercised or lapsed (in shares)	(3,194)
Cancelled or expired (in shares)	(2,079)
Outstanding, ending balance (in shares)	528,062
Nonvested (in shares)	528,062
Expected to vest (in shares)	443,221
Weighted Average Exercise Price
Outstanding, beginning balance (in dollars per share)	$ 88.55
Exercised or lapsed (in dollars per share)	100.09
Cancelled or expired (in dollars per share)	97.71
Outstanding, ending balance (in dollars per share)	$ 88.40
Performance shares
Number of Options/Shares
Outstanding, beginning balance (in shares)	42,050
Outstanding, ending balance (in shares)	42,050
Nonvested (in shares)	42,050
Expected to vest (in shares)	81,998
Weighted Average Exercise Price
Outstanding, beginning balance (in dollars per share)	$ 140.70
Outstanding, ending balance (in dollars per share)	$ 140.70

Pension and Postretirement Be_3

Pension and Postretirement Benefits (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Pension Plan and SERP
Defined Benefit Plan Disclosure [Line Items]
Interest cost	$ 3.7	$ 3.6
Expected return on plan assets	(6.4)	(7.7)
Amortization of net actuarial loss	1.2	0.8
Net periodic (benefit) cost	(1.5)	(3.3)
Employer contributions, net	0.2	0.2
Postretirement Plan
Defined Benefit Plan Disclosure [Line Items]
Interest cost	0	0.1
Expected return on plan assets	0	(0.1)
Amortization of net actuarial loss	0.1	0.1
Net periodic (benefit) cost	0.1	0.1
Employer contributions, net	$ (0.3)	$ (0.1)

Segment Reporting - Additional

Segment Reporting - Additional Information (Details)	3 Months Ended
	Mar. 31, 2019segment
Segment Reporting [Abstract]
Number of operating segments	3

Segment Reporting - Reconcilia

Segment Reporting - Reconciliations Income Before Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Segment Reporting Information [Line Items]
Revenues	$ 625	$ 581.2
Operating expenses:
Cost of revenues (exclusive of items shown separately below)	(231.4)	(221.2)
Selling, general and administrative	(111.4)	(91.8)
Investment income and others, net	0.4	(0.6)
EBITDA	281.8	268.8
Depreciation and amortization of fixed assets	(46.6)	(40.5)
Amortization of intangible assets	(33.2)	(33.2)
Operating income	202.4	194.5
Interest expense	(31.9)	(32.8)
Income before income taxes	170.1	162.3
Insurance
Segment Reporting Information [Line Items]
Revenues	451.2	412.6
Operating expenses:
Cost of revenues (exclusive of items shown separately below)	(150.6)	(138.7)
Selling, general and administrative	(68.4)	(52.4)
Investment income and others, net	(0.1)	(2.5)
EBITDA	232.3	224
Depreciation and amortization of fixed assets	(31.9)	(27.4)
Amortization of intangible assets	(6.8)	(5.4)
Operating income	193.5	188.7
Energy and Specialized Markets
Segment Reporting Information [Line Items]
Revenues	130.8	125.5
Operating expenses:
Cost of revenues (exclusive of items shown separately below)	(56.5)	(55.7)
Selling, general and administrative	(37.6)	(34.1)
Investment income and others, net	0.5	2.1
EBITDA	36.2	33.6
Depreciation and amortization of fixed assets	(10.3)	(11)
Amortization of intangible assets	(20.6)	(21.6)
Operating income	5.8	3.1
Financial Services
Segment Reporting Information [Line Items]
Revenues	43	43.1
Operating expenses:
Cost of revenues (exclusive of items shown separately below)	(24.3)	(26.8)
Selling, general and administrative	(5.4)	(5.3)
Investment income and others, net	0	(0.2)
EBITDA	13.3	11.2
Depreciation and amortization of fixed assets	(4.4)	(2.1)
Amortization of intangible assets	(5.8)	(6.2)
Operating income	$ 3.1	$ 2.7

Segment Reporting - Regional L

Segment Reporting - Regional Long-lived Assets By Country (Details) - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
Segment Reporting Information [Line Items]
Long-lived assets	$ 5,606.2	$ 5,255.8
U.S.
Segment Reporting Information [Line Items]
Long-lived assets	2,537	2,335.8
U.K.
Segment Reporting Information [Line Items]
Long-lived assets	2,662.3	2,595.5
Other countries
Segment Reporting Information [Line Items]
Long-lived assets	$ 406.9	$ 324.5

Related Parties (Details)

Related Parties (Details) - relatedparty relatedparty in Millions	Mar. 31, 2019	Dec. 31, 2018
Related Party Transactions [Abstract]
Percentage of ownership on outstanding common stock required to become related party (more than)	5.00%
Number of related parties	0	0

Commitments and Contingencies (

Commitments and Contingencies (Details)	Oct. 08, 2015patent	Mar. 31, 2019patentclaim	May 19, 2017claim
Loss Contingencies [Line Items]
Patents allegedly infringed, number | patent		6
Number of asserted claims | claim		11
Xactware Solutions
Loss Contingencies [Line Items]
Patents allegedly infringed, number | patent	7
Number of asserted claims | claim			18

Uncategorized Items - vrsk-2019

Label	Element	Value
Accounting Standards Update 2016-01 [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	$ 35,200,000
Accounting Standards Update 2016-01 [Member] | AOCI Attributable to Parent [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	(700,000)
Accounting Standards Update 2016-01 [Member] | Retained Earnings [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	$ 35,900,000