TransUnion (TRU) 10-Q 28 Apr 20 2020 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information shares in Millions	3 Months Ended
	Mar. 31, 2020shares
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2020
Document Transition Report	false
Entity File Number	001-37470
Entity Registrant Name	TransUnion
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	61-1678417
Entity Address, Address Line One	555 West Adams,
Entity Address, City or Town	Chicago,
Entity Address, State or Province	IL
Entity Address, Postal Zip Code	60661
City Area Code	312
Local Phone Number	985-2000
Title of 12(b) Security	Common Stock, $0.01 par value
Trading Symbol	TRU
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding	189.8
Amendment Flag	false
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q1
Entity Central Index Key	0001552033
Current Fiscal Year End Date	--12-31

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 305.7	$ 274.1
Trade accounts receivable, net of allowance of $23.2 and $19.0	468	443.9
Other current assets	151.1	170.2
Total current assets	924.8	888.2
Property, plant and equipment, net of accumulated depreciation and amortization of $471.0 and $454.4	210	219
Goodwill	3,277.6	3,377.8
Other intangibles, net of accumulated amortization of $1,524.3 and $1,482.1	2,287.1	2,391.9
Other assets	233.4	236.3
Total assets	6,932.9	7,113.2
Current liabilities:
Trade accounts payable	187.1	176.2
Short-term debt and current portion of long-term debt	58.6	58.7
Other current liabilities	309.8	336.5
Total current liabilities	555.5	571.4
Long-term debt	3,585.6	3,598.3
Deferred Income Tax Liabilities, Net	415.9	439.1
Other liabilities	211.7	165
Total liabilities	4,768.7	4,773.8
Stockholders’ equity:
Common stock, $0.01 par value; 1.0 billion shares authorized at March 31, 2020 and December 31, 2019, 195.0 million and 193.5 million shares issued at March 31, 2020 and December 31, 2019, respectively, and 189.8 million shares and 188.7 million shares outstanding as of March 31, 2020 and December 31, 2019, respectively	1.9	1.9
Additional paid-in capital	2,038.1	2,022.3
Treasury stock at cost; 5.2 million and 4.8 million shares at March 31, 2020 and December 31, 2019, respectively	(211.8)	(179.2)
Retained earnings	707.7	652
Accumulated other comprehensive loss	(468.2)	(251.6)
Total TransUnion stockholders’ equity	2,067.7	2,245.4
Noncontrolling interests	96.5	94
Total stockholders’ equity	2,164.2	2,339.4
Total liabilities and stockholders’ equity	$ 6,932.9	$ 7,113.2

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) shares in Millions, $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Trade accounts receivable, allowance	$ 23.2	$ 19
Property, plant and equipment, accumulated depreciation and amortization	471	454.4
Other intangibles, net of accumulated amortization	$ 1,524.3	$ 1,482.1
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	1,000	1,000
Common stock, shares issued	195	193.5
Common stock, shares outstanding	189.8	188.7
Treasury stock, shares	5.2	4.8

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Revenue	$ 687.6	$ 619.3
Operating expenses
Cost of services (exclusive of depreciation and amortization below)	225.1	208.1
Selling, general and administrative	235.4	195.7
Depreciation and amortization	90.3	93.5
Total operating expenses	550.8	497.2
Operating income	136.8	122.1
Non-operating income and (expense)
Interest expense	(37.7)	(45)
Interest income	1.9	1.5
Earnings from equity method investments	2.6	3.8
Other income and (expense), net	(7)	(6.8)
Total non-operating income and (expense)	(40.2)	(46.5)
Income from continuing operations before income taxes	96.6	75.5
Provision for income taxes	(22.3)	(0.6)
Income from continuing operations	74.3	74.9
Discontinued operations, net of tax	0	(1.6)
Net income	74.3	73.4
Less: net income attributable to the noncontrolling interests	(4.1)	(2.4)
Net income attributable to TransUnion	70.2	70.9
Net Income
Income from continuing operations	74.3	74.9
Less: net income from continuing operations attributable to noncontrolling interests	(4.1)	(2.4)
Income from continuing operations attributable to TransUnion	70.2	72.5
Discontinued operations, net of tax	0	(1.6)
Net income attributable to TransUnion	$ 70.2	$ 70.9
Basic earnings per common share from:
Income from continuing operations attributable to TransUnion	$ 0.37	$ 0.39
Discontinued operations, net of tax	0	(0.01)
Net Income attributable to TransUnion	0.37	0.38
Diluted earnings per common share from:
Income from continuing operations attributable to TransUnion	0.37	0.38
Discontinued operations, net of tax	0	(0.01)
Net Income attributable to TransUnion	$ 0.37	$ 0.37
Weighted Average Number of Shares Outstanding, Basic	189.2	186.6
Weighted Average Number of Shares Outstanding, Diluted	192.2	191

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Net income	$ 74.3	$ 73.4
Foreign currency translation:
Foreign currency translation adjustment	(183)	66.3
Benefit (expense) for income taxes	0.4	(0.2)
Foreign currency translation, net	(182.6)	66.1
Hedge instruments:
Hedge instruments: Net change on interest rate cap	(0.5)	(4.6)
Hedge instruments: Net change on interest rate swap	(46.9)	(13.8)
Hedge instruments: Cumulative effect of adopting ASU 2017-12	0	1
Hedge instruments: Expense for income taxes	11.7	4.6
Hedge instruments, net	(35.7)	(12.8)
Available-for-sale debt securities:
Available-for-sale debt securities: Net unrealized loss	0	0
Available-for-sale debt securities: Benefit for income taxes	0	0
Available-for-sale debt securities, net	0	0
Total other comprehensive (loss) income, net of tax	(218.3)	53.3
Comprehensive income	(144)	126.7
Less: comprehensive income attributable to noncontrolling interests	(2.4)	(2.5)
Comprehensive (loss) income attributable to TransUnion	$ (146.4)	$ 124.2

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Cash flows from operating activities:
Net income	$ 74.3	$ 73.4
Discontinued operations, net of tax	0	1.6
Income from continuing operations	74.3	74.9
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	90.3	93.5
Net (gain) on assets-held-for sale and impairment of investments in affiliated companies	(1.8)	5.3
Equity in net income of affiliates, net of dividends	(2)	(3.3)
Deferred taxes	(0.6)	(0.2)
Amortization of discount and deferred financing fees	1	1.6
Stock-based compensation	4.9	9.9
Provision for losses on trade accounts receivable	6.2	1.8
Other	2.3	(0.3)
Changes in assets and liabilities:
Trade accounts receivable	(40.6)	(11.4)
Other current and long-term assets	(0.5)	(16.1)
Trade accounts payable	12.3	0
Other current and long-term liabilities	(20.3)	(29.5)
Cash provided by operating activities of continuing operations	125.5	126.2
Cash used in operating activities of discontinued operations	0	(2.4)
Cash provided by operating activities	125.5	123.8
Cash flows from investing activities:
Capital expenditures	(42)	(41.9)
Proceeds from sale/maturity of other investments	19.4	6.8
Purchases of other investments	(0.2)	(14.4)
Investment in non-consolidated affiliate	(5.2)	0
Proceeds from disposals of assets held for sale	1.6	0.8
Other	0.9	(2.2)
Net Cash Provided by (Used in) Investing Activities, Continuing Operations	(25.5)	(50.9)
Cash Provided by (Used in) Investing Activities, Discontinued Operations	0	0
Cash used in investing activities	(25.5)	(50.9)
Cash flows from financing activities:
Repayments of debt	(13.8)	(18.8)
Proceeds from issuance of common stock and exercise of stock options	10.9	10.1
Dividends to shareholders	(14.7)	(14.4)
Employee taxes paid on restricted stock units recorded as treasury stock	(32.1)	(36.8)
Cash used in financing activities	(49.7)	(59.9)
Effect of exchange rate changes on cash and cash equivalents	(18.7)	0.5
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect	31.6	13.5
Cash and cash equivalents, beginning of period	274.1	187.4
Cash and cash equivalents, end of period	$ 305.7	$ 200.9

Consolidated Statements of Stoc

Consolidated Statements of Stockholders' Equity - USD ($) shares in Millions, $ in Millions	Total	Common Stock	Paid-In Capital	Treasury Stock	Retained Earnings	Accumulated Other Comprehensive Loss	Noncontrolling Interests	Total
Balance (in shares) at Dec. 31, 2018		185.7
Balance at Dec. 31, 2018		$ 1.9	$ 1,947.3	$ (139.9)	$ 363.1	$ (282.7)	$ 92.5	$ 1,982.2
Net Income (Loss) Attributable to Parent	$ 70.9				70.9
Net Income (Loss) Attributable to Nonredeemable Noncontrolling Interest							2.4
Net income (loss)	73.4							73.4
Other comprehensive income	53.3					53.2	0.1	53.3
Stock-based compensation			9.2					9.2
Employee share purchase plan		0.1
Employee share purchase plan		$ 0	6.9					6.9
Exercise of stock options		0.5
Exercise of stock options		$ 0	4.2					4.2
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures		1.6
Treasury stock purchased		(0.6)
Treasury stock purchased				(37.1)				(37.1)
Dividends to shareholders					(14.2)			(14.2)
Balance (in shares) at Mar. 31, 2019		187.3
Balance at Mar. 31, 2019		$ 1.9	1,967.6	(177)	418.8	(229.4)	95	2,076.9
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets | Accounting Standards Update 2017-12 [Member]					(1)			(1)
Balance (in shares) at Dec. 31, 2019		188.7
Balance at Dec. 31, 2019	2,339.4	$ 1.9	2,022.3	(179.2)	652	(251.6)	94	2,339.4
Net Income (Loss) Attributable to Parent	70.2				70.2
Net Income (Loss) Attributable to Nonredeemable Noncontrolling Interest							4.1
Net income (loss)	74.3							74.3
Other comprehensive income	(218.3)					(216.6)	(1.7)	(218.3)
Stock-based compensation			4.1					4.1
Employee share purchase plan		0.1
Employee share purchase plan		$ 0	8.9					8.9
Exercise of stock options		0.4
Exercise of stock options		$ 0	2.8					2.8
Vesting of restricted stock units		0.9
Treasury stock purchased		(0.3)
Treasury stock purchased				(32.6)				(32.6)
Dividends to shareholders					(14.4)			(14.4)
Balance (in shares) at Mar. 31, 2020		189.8
Balance at Mar. 31, 2020	$ 2,164.2	$ 1.9	$ 2,038.1	$ (211.8)	707.7	$ (468.2)	96.5	2,164.2
Stockholders' Equity, Other					$ (0.1)		$ 0.1	$ 0

Significant Accounting and Repo

Significant Accounting and Reporting Policies	3 Months Ended
	Mar. 31, 2020
Accounting Policies [Abstract]
Significant Accounting and Reporting Policies	Significant Accounting and Reporting Policies Basis of Presentation Unless the context indicates otherwise, any reference in this report to the “Company,” “we,” “our,” “us,” and “its” refers to TransUnion and its consolidated subsidiaries, collectively. The accompanying unaudited Condensed Consolidated Financial Statements have been prepared in accordance with instructions to Form 10-Q and Rule 10-01 of Regulation S-X and do not include all the information required by accounting principles generally accepted in the United States of America (“U.S. GAAP”) for complete financial statements. In the opinion of management, all adjustments, including normal recurring adjustments, considered necessary for a fair statement have been included. All significant intercompany transactions and balances have been eliminated. The operating results of TransUnion for the periods presented are not necessarily indicative of the results that may be expected for the full year ending December 31, 2020. The Company’s year end Consolidated Balance Sheet data was derived from audited financial statements. Therefore, these unaudited consolidated financial statements should be read in conjunction with our audited financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2019 , filed with the Securities and Exchange Commission (“SEC”) on February 18, 2020. Principles of Consolidation The consolidated financial statements of TransUnion include the accounts of TransUnion and all of its controlled subsidiaries. Investments in nonmarketable unconsolidated entities in which the Company is able to exercise significant influence are accounted for using the equity method. Investments in nonmarketable unconsolidated entities in which the Company is not able to exercise significant influence, our “Cost Method Investments,” are accounted for at our initial cost, minus any impairment, plus or minus changes resulting from observable price changes in orderly transactions for the identical or a similar investment of the same issuer. Impact of coronavirus (“COVID-19”) On Our Financial Statements The global spread and unprecedented impact of COVID-19 is complex and rapidly-evolving. On March 11, 2020, the World Health Organization declared COVID-19 a global pandemic and recommended extensive containment and mitigation measures worldwide. The outbreak has reached all of the regions in which we do business, and governmental authorities around the world have implemented numerous measures attempting to contain and mitigate the effects of the virus, including travel bans and restrictions, border closings, quarantines, shelter-in-place orders, shutdowns, limitations or closures of non-essential businesses, school closures, and social distancing requirements. The global spread of COVID-19 and actions taken in response to the virus have negatively affected workforces, customers, consumer confidence, financial markets, employment rates, consumer spending, credit markets and housing demand, caused significant economic and business disruption, volatility and financial uncertainty, and led to a significant economic downturn, including in the markets where we operate. We have assessed various accounting estimates and other matters, including those that require consideration of forecasted financial information, in context of the unknown future impacts of COVID-19 using information that is reasonably available to us at this time. The accounting estimates and other matters we have assessed include, but were not limited to, our allowance for doubtful accounts, stock-based compensation, goodwill and other long-lived assets, financial assets, valuation allowances for tax assets and revenue recognition. While based on our current assessment of these estimates there was not a material impact to our consolidated financial statements as of and for the quarter ended March 31, 2020, as additional information becomes available to us, our future assessment of these estimates, including our expectations at the time regarding the duration, scope and severity of the pandemic, as well as other factors, could materially and adversely impact our consolidated financial statements in future reporting periods. Trade Accounts Receivable We base our allowance for doubtful accounts estimate on our historical write-off experience, current conditions, an analysis of the aging of outstanding receivables and customer payment patterns, and specific reserves for customers in adverse financial condition or for existing contractual disputes. Beginning January 1, 2020, we also considered our current expectations of future economic conditions, including the impact of COVID-19, when estimating our allowance for doubtful accounts. We made an immaterial increase to our allowance for doubtful accounts as a result of our current estimate of the impact COVID-19 will have on the collectability of our accounts receivable. As additional information becomes available to us, our future assessment of our allowance for doubtful accounts could materially and adversely impact our consolidated financial statements in future reporting periods. The following is a rollforward of the allowance for doubtful accounts for the periods presented: Three Months Ended March 31, 2020 2019 Beginning Balance $ 19.0 $ 13.5 Provision for losses on trade accounts receivable 6.2 1.8 Write-offs, net of recovered accounts (2.0 ) (1.2 ) Ending balance $ 23.2 $ 14.1 Long-Lived Assets and Goodwill We review long-lived asset groups that are subject to amortization for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset group may not be recoverable. We test goodwill for impairment on an annual basis, in the fourth quarter, or on an interim basis if there is an indicator of impairment. As additional information becomes available to us, our future assessment of impairments to long-lived assets and goodwill could materially and adversely impact our consolidated financial statements in future reporting periods. The decrease in other intangibles, net of accumulated amortization, as of March 31, 2020, compared with December 31, 2019, includes a decrease of $63.6 million due to the translation adjustment of our foreign entities long-lived assets, net of accumulated amortization, resulting from changes to foreign exchange rates between periods. The decrease in goodwill as of March 31, 2020, compared with December 31, 2019, is due to a $100.2 million translation adjustment of our foreign entities goodwill resulting from changes to foreign exchange rates between periods. The offset to these translation adjustments are included in accumulated other comprehensive loss on our balance sheet. Recently Adopted Accounting Pronouncements On June 16, 2016, the FASB issued Accounting Standards Update (“ASU”) No. 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments. This ASU amends the accounting for credit losses on available-for-sale debt securities and purchased financial assets with credit deterioration. In addition, these amendments require the measurement of all expected credit losses for financial assets, including trade accounts receivable, held at the reporting date based on historical experience, current conditions, and current expectations of future economic conditions based on reasonable and supportable forecasts. We adopted this guidance on January 1, 2020. Upon adoption and at March 31, 2020, this new guidance did not have a material impact on our consolidated financial statements. Recent Accounting Pronouncements Not Yet Adopted On December 18, 2019, the FASB issued ASU 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes. This ASU removes specific exceptions to the general principles in Topic 740. Among other things it eliminates the need for organizations to analyze whether the following apply in a given period: an exception to the incremental approach for intra-period tax allocation; exceptions to accounting for basis differences when there are ownership changes in foreign investments; and an exception in interim period income tax accounting for year-to-date losses that exceed anticipated losses. This amendment also improves financial statement preparers’ application of income tax-related guidance and simplifies GAAP for: franchise taxes that are partially based on income; transactions with a government that result in a step up in the tax basis of goodwill; separate financial statements of legal entities that are not subject to tax; and enacted changes in tax laws in interim periods. This guidance is effective for annual reporting periods beginning after December 15, 2020, including interim periods therein. We are assessing the impact this guidance will have on our consolidated financial statements. On January 16, 2020, the FASB issued ASU 2020-01, Investments-Equity Securities (Topic 321), Investments-Equity Method and Joint Ventures (Topic 323), and Derivatives and Hedging (Topic 815)-Clarifying the Interactions between Topic 321, Topic 323, and Topic 815. This amendment, among other things, clarifies that a company should consider observable transactions that require a company to either apply or discontinue the equity method of accounting under Topic 323, Investments-Equity Method and Joint Ventures, for the purposes of applying the measurement alternative in accordance with Topic 321 immediately before applying or upon discontinuing the equity method. This amendment also clarifies that, when determining the accounting for certain forward contracts and purchased options a company should not consider, whether upon settlement or exercise, if the underlying securities would be accounted for under the equity method or fair value option. This guidance is effective for annual reporting periods beginning after December 15, 2020, including interim periods therein. We are assessing the impact this guidance will have on our consolidated financial statements. We do not believe the impact will be material. In March 2020, the FASB issued ASU 2020-4, Reference Rate Reform (Topic 848), Facilitation of the Effects of Reference Rate Reform on Financial Reporting. In response to concerns about structural risks of interbank offered rates including the risk of cessation of the London Interbank Offered Rate (LIBOR), regulators in several jurisdictions around the world have undertaken reference rate reform initiatives to identify alternative reference rates that are more observable and less susceptible to manipulation. The provisions of this ASU are elective and apply to all entities, subject to meeting certain criteria, that have debt or hedging contracts, among other contracts, that reference LIBOR or another reference rate expected to be discontinued because of reference rate reform. This ASU, among other things, provides optional expedients and exceptions for a limited period of time for applying U.S. GAAP to these contracts if certain criteria are met to ease the potential burden in accounting for or recognizing the effects of reference rate reform on financial reporting. ASU 2020-04 is effective for all entities as of March 12, 2020 through December 31, 2022. We are still evaluating the impact, but do not expect the adoption of the standard to have a material impact on our Consolidated Financial Statements.

Fair Value

Fair Value	3 Months Ended
	Mar. 31, 2020
Fair Value Disclosures [Abstract]
Fair Value	Fair Value The following table summarizes financial instruments measured at fair value, on a recurring basis, as of March 31, 2020 : (in millions) Total Level 1 Level 2 Level 3 Assets Available-for-sale debt securities (Note 3) $ 2.8 $ — $ 2.8 $ — Total $ 2.8 $ — $ 2.8 $ — Liabilities Interest rate swaps and caps (Notes 7 and 8) $ 95.9 $ — $ 95.9 $ — Contingent consideration (Note 6) 7.5 — — 7.5 Total $ 103.4 $ — $ 95.9 $ 7.5 Level 2 instruments consist of foreign exchange-traded corporate bonds, interest rate caps, and interest rate swaps. Foreign exchange-traded corporate bonds are available-for-sale securities valued at their current quoted prices. These securities mature between 2027 and 2033. The interest rate caps fair values are determined using the market standard methodology of discounting the future expected cash receipts that would occur if variable interest rates rise above the strike rate of the caps in conjunction with the cash payments related to financing the premium of the interest rate caps. The interest rate swaps fair values are determined using the market standard methodology of discounting the future expected net cash receipts or payments that would occur if variable interest rates rise above or fall below the fixed rates of the swaps. The variable interest rates used in the calculations of projected receipts on both the caps and swaps are based on an expectation of future interest rates derived from observable market interest rate curves and volatilities. Unrealized gains and losses on available-for-sale debt securities are included in other comprehensive income. There were no significant realized or unrealized gains or losses on any of our securities for any of the periods presented. Level 3 instruments consist of contingent consideration obligations related to companies we have acquired with remaining maximum payouts totaling $7.5 million . These obligations are contingent upon meeting certain quantitative or qualitative performance metrics through 2019, and are included in other current liabilities on our balance sheet. The fair values of the obligations are determined based on an income approach, using our expectations of the future expected earnings of the acquired entities. We assess the fair value of these obligations each reporting period with any changes reflected as gains or losses in selling, general and administrative expenses in the consolidated statements of income. During the three months ended March 31, 2020 , we recorded additional expense of $0.3 million

Other Current Assets

Other Current Assets	3 Months Ended
	Mar. 31, 2020
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Other Current Assets	Other Current Assets Other current assets consisted of the following: (in millions) March 31, December 31, 2019 Prepaid expenses $ 83.4 $ 84.1 Other receivables 18.9 15.2 Income taxes receivable 17.7 19.0 Other investments 10.4 30.7 Marketable securities (Note 2) 2.8 2.9 Contract assets 1.5 1.4 Deferred financing fees (Note 10) 0.5 0.5 Other 15.9 16.4 Total other current assets $ 151.1 $ 170.2 Other receivables primarily include amounts recoverable under insurance policies for certain litigation costs. Other investments include non-negotiable certificates of deposit that are recorded at their carrying value which approximates fair value. The decrease in these investments is due to non-negotiable certificates of deposit that matured and converted to cash equivalents.

Other Assets

Other Assets	3 Months Ended
	Mar. 31, 2020
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Other Assets	Other Assets Other assets consisted of the following: (in millions) March 31, December 31, 2019 Investments in nonconsolidated affiliates (Note 5) $ 132.3 $ 133.7 Right-of-use lease assets 71.1 71.2 Non-qualified employee benefit plan assets 10.7 12.7 Deposits 4.5 4.1 Notes receivable from affiliated companies 4.0 4.0 Deferred financing fees 1.8 1.9 Other 9.0 8.7 Total other assets $ 233.4 $ 236.3

Investments in Affiliated Compa

Investments in Affiliated Companies	3 Months Ended
	Mar. 31, 2020
Investments in Affiliated Companies [Abstract]
Equity Method Investments and Joint Ventures Disclosure	Investments in Affiliated Companies Investments in affiliated companies represent our investment in non-consolidated domestic and foreign entities. These entities are in businesses similar to ours, such as credit reporting, credit-scoring and credit-monitoring services. We use the equity method to account for investments in affiliates where we are able to exercise significant influence. For these investments, we adjust the carrying value for our proportionate share of the affiliates’ earnings, losses and distributions, as well as for purchases and sales of our ownership interest. We account for nonmarketable investments in equity securities in which we are not able to exercise significant influence, our “Cost Method Investments”, at our initial cost, minus any impairment, plus or minus changes resulting from observable price changes in orderly transactions for the identical or a similar investment of the same issuer. For these investments, we adjust the carrying value for any purchases or sales of our ownership interests. We record any dividends received from these investments as other income in non-operating income and expense. There was a $5.3 million loss on the impairment of an investment in one of our affiliated companies during the three months ended March 31, 2019 . The loss was included in other income and expense in the consolidated statements of income. Investments in affiliated companies consisted of the following: (in millions) March 31, December 31, 2019 Equity Method investments $ 42.4 $ 49.0 Cost Method investments 89.9 84.7 Total investments in affiliated companies (Note 4) $ 132.3 $ 133.7 These balances are included in other assets in the consolidated balance sheets. The increase in cost method investments is due to a new investment in our U.S. Markets segment. Earnings from equity method investments, which are included in other non-operating income and expense, and dividends received from equity method investments consisted of the following: Three Months Ended (in millions) 2020 2019 Earnings from equity method investments (Note 13) $ 2.6 $ 3.8 Dividends received from equity method investments $ 0.6 $ 0.5

Other Current Liabilities

Other Current Liabilities	3 Months Ended
	Mar. 31, 2020
Payables and Accruals [Abstract]
Other Current Liabilities	Other Current Liabilities Other current liabilities consisted of the following (in millions) March 31, December 31, 2019 Deferred revenue (Note 10) $ 90.3 $ 82.8 Accrued legal and regulatory (Note 14) 60.0 30.4 Accrued payroll 55.0 110.6 Income taxes payable 25.6 14.9 Accrued employee benefits 23.4 35.4 Operating lease liabilities 18.7 19.9 Contingent consideration (Note 2) 7.5 7.2 Accrued interest 4.0 4.0 Other 25.3 31.3 Total other current liabilities $ 309.8 $ 336.5 The decrease in accrued payroll was due primarily to the payment of accrued bonuses during the first quarter of 2020 that were earned in 2019. Accrued legal and regulatory increased due primarily to an additional accrual related to the Ramirez litigation.

Other Liabilities

Other Liabilities	3 Months Ended
	Mar. 31, 2020
Other Liabilities Disclosure [Abstract]
Other Liabilities Disclosure	Other Liabilities Other liabilities consisted of the following: (in millions) March 31, December 31, 2019 Interest rate swaps and caps (Notes 2 and 8) $ 95.9 $ 46.6 Operating lease liabilities 58.1 57.2 Unrecognized tax benefits 32.4 32.8 Deferred revenue (Note 10) 12.5 15.7 Non-qualified and other employee benefit plan liabilities 9.2 11.6 Other 3.6 1.1 Total other liabilities $ 211.7 $ 165.0 The increase in the interest rate swaps and caps liability was due primarily to changes to the fair value of these instruments due to the forward LIBOR curve during the quarter.

Debt

Debt	3 Months Ended
	Mar. 31, 2020
Debt Disclosure [Abstract]
Debt	Debt Debt outstanding consisted of the following: (in millions) March 31, December 31, 2019 Senior Secured Term Loan B-5, payable in quarterly installments through November 15, 2026, with periodic variable interest at LIBOR or alternate base rate, plus applicable margin (2.74% at March 31, 2020, and 3.55% at December 31, 2019), net of original issue discount and deferred financing fees of $4.7 million and $11.3 million, respectively, at March 31, 2020, and original issue discount and deferred financing fees of $4.8 million and $11.7 million, respectively, at December 31, 2019 $ 2,502.5 $ 2,508.5 Senior Secured Term Loan A-3, payable in quarterly installments through December 10, 2024, with periodic variable interest at LIBOR or alternate base rate, plus applicable margin (2.49% at March 31, 2020, and 3.30% at December 31, 2019), net of original issue discount and deferred financing fees of $3.1 million and $1.9 million, respectively, at March 31, 2020, and original issue discount and deferred financing fees of $3.3 million and $2.2 million, respectively, at December 31, 2019 1,137.8 1,144.5 Senior Secured Revolving Credit Facility — — Other notes payable 3.7 3.7 Finance leases 0.2 0.3 Total debt 3,644.2 3,657.0 Less short-term debt and current portion of long-term debt (58.6 ) (58.7 ) Total long-term debt $ 3,585.6 $ 3,598.3 Senior Secured Credit Facility On June 15, 2010, we entered into a Senior Secured Credit Facility with various lenders. This facility has been amended several times and currently consists of the Senior Secured Term Loan B-5 and the Senior Secured Term Loan A-3 (collectively, the “Senior Secured Term Loans”), and the Senior Secured Revolving Credit Facility. As of March 31, 2020 , we had no outstanding balance under the Senior Secured Revolving Credit Facility, $0.1 million of outstanding letters of credit, and could have borrowed up to the remaining $299.9 million available. TransUnion also has the ability to request incremental loans on the same terms under the Senior Secured Credit Facility up to the greater of $1,000.0 million and 100% of consolidated EBITDA for the four quarters preceding such request date, and may incur additional incremental loans so long as the senior secured net leverage ratio does not exceed 4.25 -to-1, subject to certain additional conditions and commitments by existing or new lenders to fund any additional borrowings. With certain exceptions, the Senior Secured Credit Facility obligations are secured by a first-priority security interest in substantially all of the assets of Trans Union LLC, including its investment in subsidiaries. The Senior Secured Credit Facility contains various restrictions and nonfinancial covenants, along with a senior secured net leverage ratio test. The nonfinancial covenants include restrictions on dividends, investments, dispositions, future borrowings and other specified payments, as well as additional reporting and disclosure requirements. The senior secured net leverage test must be met as a condition to incur additional indebtedness, make certain investments, and may be required to make certain restricted payments. The senior secured net leverage ratio must not exceed 5.5 -to-1 at any such measurement date. Under the terms of the Senior Secured Credit Facility, TransUnion may make dividend payments up to the greater of $75 million or 7.5% of Consolidated EBITDA per year, or an unlimited amount provided that no default or event of default exists and so long as the total net leverage ratio does not exceed 4.75 -to-1. As of March 31, 2020 , we were in compliance with all debt covenants. On March 10, 2020, we entered into two tranches of interest rate swap agreements with various counter-parties that effectively fix our LIBOR exposure on a portion of our Senior Secured Term Loans or similar replacement debt. The first tranche commences on June 30, 2020 and expires on June 30, 2022 with an initial notional amount of $1,150.0 million that amortizes each quarter. The first tranche requires TransUnion to pay fixed rates varying between 0.5200% and 0.5295% in exchange for receiving a variable rate that matches the variable rate on our loans. The second tranche commences on June 30, 2022 and expires on June 30, 2025 with an initial notional amount of $1,110.0 million that amortizes each quarter. The second tranche requires TransUnion to pay fixed rates varying between 0.9125% and 0.9280% in exchange for receiving a variable rate that matches the variable rate on our loans. We have designated these swap agreements as cash flow hedges. On December 17, 2018, we entered into interest rate swap agreements with various counter-parties that effectively fix our LIBOR exposure on a portion of our Senior Secured Term Loans or similar replacement debt, which is currently fixed at 2.702% and 2.706% . We have designated these swap agreements as cash flow hedges. The current aggregate notional amount under these agreements is $1,425.0 million , decreasing each quarter until the second agreement terminates on December 30, 2022. On December 18, 2015, we entered into interest rate cap agreements with various counter-parties that effectively cap our LIBOR exposure on a portion of our Senior Secured Term Loans or similar replacement debt at 0.75% beginning June 30, 2016. We have designated these cap agreements as cash flow hedges. The current aggregate notional amount under these agreements is $1,246.9 million and will continue to decrease each quarter until the agreement terminates on June 30, 2020. We began to pay the various counter-parties a fixed rate on the outstanding notional amounts of between 0.98% and 0.994% and receive payments to the extent LIBOR exceeds 0.75% . Based on how the fair value of interest rate caps are determined, the earlier interest periods have lower fair values at inception than the later interest periods, resulting in less interest expense being recognized in the earlier periods compared with the later periods. Any payments we receive to the extent LIBOR exceeds 0.75% is also reclassified from other comprehensive income to interest expense in the period received. The change in the fair value of our hedging instruments, included in our assessment of hedge effectiveness, is recorded in other comprehensive income, and reclassified to interest expense when the corresponding hedged debt affects earnings. The change in the fair value of the swaps resulted in an unrealized loss of $46.9 million ( $35.3 million , net of tax) and $13.8 million ( $10.4 million , net of tax) for the three months ended March 31, 2020 , and 2019 recorded in other comprehensive income. Interest expense on the swaps in the three months ended March 31, 2020 and 2019 was expense of $3.7 million ( $3.1 million , net of tax) and $0.5 million ( $0.3 million , net of tax). We expect to recognize a loss of approximately $35.9 million as interest expense due to our expectation that LIBOR will exceed the fixed rates of interest over the next twelve months. The change in the fair value of the caps resulted in an unrealized loss of $0.5 million ( $0.3 million , net of tax) and $4.6 million ( $3.4 million , net of tax) for the three months ended March 31, 2020 , and 2019 , recorded in other comprehensive income. Interest expense reclassified from other comprehensive income to interest expense related to the fair value of the portion of the caps expiring in the three months ended March 31, 2020 , and 2019 was expense of $2.1 million ( $1.8 million , net of tax) and income of $1.6 million ( $1.0 million , net of tax), respectively. We expect to reclassify a loss of approximately $4.5 million from other comprehensive income to interest expense related to the fair value of the portion of the caps expiring and payments received to the extent LIBOR exceeds 0.75% in the next twelve months. Fair Value of Debt As of March 31, 2020 , the fair value of our variable-rate Senior Secured Term Loan A-3, excluding original issue discounts and deferred fees was approximately $1,057.1 million . As of March 31, 2020 , the fair value of our Senior Secured Term Loan B-5, excluding original issue discounts and deferred fees, was approximately $2,398.9 million . The fair values of our variable-rate term loans are determined using Level 2 inputs, based on quoted market prices for the publicly traded instruments.

Stockholders' Equity

Stockholders' Equity	3 Months Ended
	Mar. 31, 2020
Stockholders' Equity Attributable to Parent [Abstract]
Stockholders' Equity	Stockholders’ Equity Common Stock Dividends On February 28, 2020 , the board of directors declared a dividend of $0.075 per share to holders of record as of the close of business on March 13, 2020 . The total dividend declared was $14.4 million , of which $14.2 million was paid on March 30, 2020 , with the remainder due as dividend equivalents to employees who hold restricted stock units when and if those units vest. An additional $0.5 million of dividend equivalents were paid to employees whose restricted stock units vested in the first quarter of 2020. Any determination to pay dividends in the future will be at the discretion of our board of directors and will depend upon results of operations, financial condition, contractual restrictions, restrictions imposed by applicable law and other factors our board of directors deems relevant. We currently have capacity and intend to continue to pay a quarterly dividend, subject to approval by our board. While we are comfortable paying the dividend at this time, if circumstances further deteriorate, we would consider recommending that our board temporarily reduce or suspend our dividend. Treasury Stock On February 13, 2017, our board of directors authorized the repurchase of up to $300.0 million of our common stock over the next 3 years . Our board of directors removed the three-year time limitation on February 8, 2018. To date, we have repurchased $133.5 million of our common stock and have the ability to repurchase the remaining $166.5 million . We have no obligation to repurchase additional shares, and the timing, actual number and value of the shares that are repurchased, if any, will be at the discretion of management and will depend on a number of factors, including market conditions, the cost of repurchasing shares, the availability of alternative investment opportunities, liquidity, and other factors deemed appropriate. Repurchases may be suspended, terminated or modified at any time for any reason. Any repurchased shares will have the status of treasury shares and may be used, if and when needed, for general corporate purposes. While the existing share repurchase program remains authorized by the board of directors, given the uncertainties arising from the COVID-19 pandemic, we do not intend to repurchase additional shares in the short term. We may resume share repurchases in the future at any time, depending upon market conditions, our capital needs and other factors. During the first quarter of 2020 , 0.9 million outstanding employee restricted stock units vested and became taxable to the employees. The employees used 0.3 million shares of the vested stock to satisfy their payroll tax withholding obligations in a net share settlement arrangement whereby the employees received 0.6 million of the shares and gave TransUnion the remaining 0.3 million shares that we have recorded as treasury stock. We remitted cash equivalent to the $32.1 million vest date value of the treasury stock to the respective governmental agencies in settlement of the employee withholding tax obligations. Preferred Stock As of March 31, 2020 and December 31, 2019, we had 100.0 million shares of preferred stock authorized, and no

Revenue

Revenue	3 Months Ended
	Mar. 31, 2020
Revenue [Abstract]
Revenue	Revenue All of our revenue is derived from contracts with customers and is reported as revenue in the consolidated statements of income generally as, or at the point in time, the performance obligation is satisfied. A performance obligation is a promise in a contract to transfer a distinct good or service to a customer. We have contracts with two general groups of performance obligations: those that require us to stand ready to provide goods and services to a customer to use as and when requested (“Stand Ready Performance Obligations”) and those that do not require us to stand ready (“Other Performance Obligations”) . Our Stand Ready Performance Obligations include obligations to stand ready to provide data, process transactions, access our databases, software-as-a-service and direct-to-consumer products, provide rights to use our intellectual property and other services. Our Other Performance Obligations include the sale of certain batch data sets and various professional and other services. Most of our Stand Ready Performance Obligations consist of a series of distinct goods and services that are substantially the same and have the same monthly pattern of transfer to our customers. We consider each month of service in this time series to be a distinct performance obligation and, accordingly, recognize revenue over time. For a majority of these Stand Ready Performance Obligations the total contractual price is variable because our obligation is to process an unknown quantity of transactions, as and when requested by our customers, over the contract period. We allocate the variable price to each month of service using the time-series concept and recognize revenue based on the most likely amount of consideration to which we will be entitled , which is generally the amount we have the right to invoice. This monthly amount can be based on the actual volume of units delivered or a guaranteed minimum, if higher. Occasionally we have contracts pursuant to which the amount we will be entitled to for the transactions processed is uncertain, in which case we estimate the revenue based on what we consider to be the most likely amount of consideration to which we will be entitled, and adjust any estimates as facts and circumstances evolve. Certain Stand Ready Performance Obligation fees result from contingent fee based contracts that require us to provide services before we have an enforceable right to payment. For these performance obligations, we recognize revenue at the point in time the contingency is met and we have an enforceable contract and right to payment. For all contracts that include a Stand Ready Performance Obligation with variable pricing, we are unable to estimate the variable price attributable to future performance obligations because the number of units to be purchased is not known. As a result, we use the exception available to forgo disclosures about revenue attributable to the future performance obligations where we recognize revenue using the time-series concept as discussed above, including those qualifying for the right to invoice practical expedient. We also use the exception available to forgo disclosures about revenue attributable to contracts with expected durations of one year or less. Certain of our Other Performance Obligations, including certain batch data sets and certain professional and other services, are delivered at a point in time. Accordingly, we recognize revenue upon delivery, once we have satisfied that obligation. For certain Other Performance Obligations, including certain professional and other services, we recognize revenue over time, based on an estimate of progress towards completion of that obligation. These contracts are not material. In certain circumstances we apply the revenue recognition guidance to a portfolio of contracts with similar characteristics. We use estimates and assumptions when accounting for a portfolio that reflect the size and composition of the portfolio of contracts. Our contracts include standard commercial payment terms generally acceptable in each region, and do not include financing with extended payment terms. We have no significant obligations for refunds, warranties, or similar obligations . Our revenue does not include taxes collected from our customers. Accounts receivable are shown separately on our balance sheet. Contract assets and liabilities result due to the timing of revenue recognition, billings and cash collections. Contract assets include our right to payment for goods and services already transferred to a customer when the right to payment is conditional on something other than the passage of time, for example, contracts pursuant to which we recognize revenue over time but do not have a contractual right to payment until we complete the contract. Contract assets are included in our other current assets and are not material as of March 31, 2020 . As our other contracts with customers generally have a duration of one year or less, our contract liabilities consist of deferred revenue that is primarily short-term in nature. Contract liabilities include current and long-term deferred revenue that are included in other current liabilities and other liabilities. We expect to recognize the December 31, 2019, current deferred revenue balance as revenue during 2020. Our long-term deferred revenue, which is not material, is expected to be recognized in approximately two years. For additional disclosures about the disaggregation of our revenue see Note 13, “Reportable Segments.”

Earnings Per Share

Earnings Per Share	3 Months Ended
	Mar. 31, 2020
Earnings Per Share [Abstract]
Earnings Per Share	Earnings Per Share Basic earnings per share represents income available to common stockholders divided by the weighted-average number of common shares outstanding during the reported period. Diluted earnings per share reflects the effect of the increase in shares outstanding determined by using the treasury stock method for awards issued under our incentive stock plans. As of March 31, 2020 and March 31, 2019 , there were 0.2 million anti-dilutive weighted stock-based awards outstanding and 1.3 million contingently-issuable performance-based stock awards outstanding that were excluded from the diluted earnings per share calculation because the contingencies had not been met. Basic and diluted weighted average shares outstanding and earnings per share were as follows: Three Months Ended (in millions, except per share data) 2020 2019 Income from continuing operations $ 74.3 $ 74.9 Less: net income from continuing operations attributable to noncontrolling interests (4.1 ) (2.4 ) Income from continuing operations attributable to TransUnion 70.2 72.5 Discontinued operations, net of tax — (1.6 ) Net income attributable to TransUnion $ 70.2 $ 70.9 Basic earnings per common share from: Income from continuing operations attributable to TransUnion $ 0.37 $ 0.39 Discontinued operations, net of tax — (0.01 ) Net Income attributable to TransUnion $ 0.37 $ 0.38 Diluted earnings per common share from: Income from continuing operations attributable to TransUnion $ 0.37 $ 0.38 Discontinued operations, net of tax — (0.01 ) Net Income attributable to TransUnion $ 0.37 $ 0.37 Weighted-average shares outstanding: Basic 189.2 186.6 Dilutive impact of stock based awards 3.0 4.4 Diluted 192.2 191.0

Income Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2020
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes For the three months ended March 31, 2020 , we reported an effective tax rate of 23.1% , which was higher than the 21.0% U.S. federal statutory rate due primarily to $16.2 million of various foreign, federal and state tax impacts and $2.1 million valuation allowance for foreign tax credit reserves due to decreased foreign source income, partially offset by $16.2 million of excess tax benefits on stock-based compensation. We periodically assess the recoverability of our deferred tax assets, and a valuation allowance is recorded against deferred tax assets if it is more likely than not that some portion of the deferred tax assets will not be realized. COVID-19 had no material impact on our assessment of the recoverability of our deferred tax assets at March 31, 2020. As additional information becomes available to us, our future assessment of the recoverability of our deferred tax assets could materially and adversely impact our consolidated financial statements in future reporting periods. For the three months ended March 31, 2019 , we reported an effective tax rate of 0.8% , which was lower than the 21.0% U.S. federal statutory rate due primarily to $21.0 million of excess tax benefits on stock-based compensation and $7.9 million of valuation allowance releases on foreign tax credit carryforwards, partially offset by $13.7 million of various foreign, state and federal tax impacts. The total amount of unrecognized tax benefits was $34.7 million as of March 31, 2020 , and $32.8 million as of December 31, 2019 . The amounts that would affect the effective tax rate if recognized are $14.1 million and $13.6 million , respectively. We classify interest and penalties, which are not significant, as income tax expense in the consolidated statements of income and their associated liabilities, which are also not significant, as other liabilities in the consolidated balance sheets. We are regularly audited by federal, state and foreign taxing authorities. Given the uncertainties inherent in the audit process, it is reasonably possible that certain audits could result in a significant increase or decrease in the total amounts of unrecognized tax benefits. An estimate of the range of the increase or decrease in unrecognized tax benefits due to audit results cannot be made at this time. Generally, tax years 2010 and forward remain open for examination in some foreign jurisdictions, 2011 and forward in some state jurisdictions, and tax years 2012 and forward remain open for examination for U.S. federal income tax purposes.

Reportable Segments

Reportable Segments	3 Months Ended
	Mar. 31, 2020
Segment Reporting [Abstract]
Reportable Segments	Reportable Segments We have three reportable segments, U.S. Markets, International, and Consumer Interactive, and the Corporate unit, which provides support services to each of the segments. Our chief operating decision maker (“CODM”) uses the profit measure of Adjusted EBITDA, on both a consolidated and segment basis, to allocate resources and assess performance of our businesses. We use Adjusted EBITDA as our profit measure because it eliminates the impact of certain items that we do not consider indicative of operating performance, which is useful to compare operating results between periods. Our board of directors and executive management team also use Adjusted EBITDA as a compensation measure for both segment and corporate management under our incentive compensation plans. Adjusted EBITDA is also a measure frequently used by securities analysts, investors and other interested parties in their evaluation of the operating performance of companies similar to ours. We define Adjusted EBITDA as net income (loss) attributable to each segment plus (less) loss (income) from discontinued operations, plus net interest expense, plus (less) provision (benefit) for income taxes, plus depreciation and amortization, plus (less) certain deferred revenue acquisition-revenue related adjustments, plus stock-based compensation, plus mergers, acquisitions, divestitures and business optimization-related expenses including Callcredit integration-related expenses, plus certain expenses associated with our accelerated technology investment, plus (less) certain other expenses (income). The segment financial information below aligns with how we report information to our CODM to assess operating performance and how we manage the business. The accounting policies of the segments are the same as described in Note 1, “Significant Accounting and Reporting Policies” and Note 10, “Revenue.” The following is a more detailed description of our three reportable segments and the Corporate unit, which provides support services to each segment: U.S. Markets The U.S. Markets segment provides consumer reports, actionable insights and analytics such as credit and other scores, and decisioning capabilities to businesses. These businesses use our services to acquire new customers, assess consumers’ ability to pay for services, identify cross-selling opportunities, measure and manage debt portfolio risk, collect debt, verify consumer identities and investigate potential fraud. The core capabilities and delivery methods in our U.S. Markets segment allow us to serve a broad set of customers across industries. We report disaggregated revenue of our U.S. Markets segment for Financial Services and Emerging Verticals: • Financial Services: The Financial Services vertical consists of our consumer lending, mortgage, auto, and cards and payments lines of business. Our Financial Services clients consist of most banks, credit unions, finance companies, auto lenders, mortgage lenders, online-only lenders (FinTech), and other consumer lenders in the United States. We also distribute our solutions through most major resellers, secondary market players and sales agents. Beyond traditional lenders, we work with a variety of credit arrangers, such as auto dealers and peer-to-peer lenders. We provide solutions across every aspect of the lending lifecycle; customer acquisition and engagement, fraud and ID management, retention and recovery. Our products are focused on mitigating risk and include credit reporting, credit marketing, analytics and consulting, identity verification and authentication and debt recovery solutions. • Emerging Verticals: Emerging Verticals include Healthcare, Insurance, Tenant and Employment, Collections, Public Sector, Media, Diversified Markets and other verticals. Our solutions in these verticals are also data-driven and address the entire customer lifecycle. We offer onboarding and transaction processing products, scoring and analytic products, marketing solutions, fraud and identity management solutions, and customer retention solutions. International The International segment provides services similar to our U.S. Markets segment to businesses in select regions outside the United States. Depending on the maturity of the credit economy in each country, services may include credit reports, analytics and decisioning services and other value-added risk management services. In addition, we have insurance, business and automotive databases in select geographies. These services are offered to customers in a number of industries including financial services, insurance, automotive, collections, and communications, and are delivered through both direct and indirect channels. The International segment also provides consumer services similar to those offered by our Consumer Interactive segment that help consumers proactively manage their personal finances and take precautions against identity theft. We report disaggregated revenue of our International segment for the following regions: Canada, Latin America, the United Kingdom, Africa, India and Asia Pacific. Consumer Interactive The Consumer Interactive segment provides solutions that help consumers manage their personal finances and take precautions against identity theft. Services in this segment include credit reports and scores, credit monitoring, fraud protection and resolution, and financial management for consumers. The segment also provides solutions that help businesses respond to data breach events. Our products are provided through user-friendly online and mobile interfaces and are supported by educational content and customer support. Our Consumer Interactive segment serves consumers through both direct and indirect channels. Corporate Corporate provides support services for each of the segments, holds investments, and conducts enterprise functions. Certain costs incurred in Corporate that are not directly attributable to one or more of the segments remain in Corporate. These costs are typically enterprise-level costs and are primarily administrative in nature. Selected segment financial information and disaggregated revenue consisted of the following: Three Months Ended March 31, (in millions) 2020 2019 Gross Revenue: U.S. Markets: Financial Services $ 230.4 $ 189.1 Emerging Verticals 191.5 179.7 Total U.S. Markets 421.9 368.8 International: Canada 26.5 23.0 Latin America 24.3 25.3 United Kingdom 48.8 42.2 Africa 14.3 15.0 India 30.8 27.7 Asia Pacific 13.0 12.8 Total International 157.7 146.0 Total Consumer Interactive 126.7 123.4 Total revenue, gross $ 706.3 $ 638.2 Intersegment revenue eliminations: U.S. Markets $ (17.1 ) $ (17.5 ) International (1.3 ) (1.2 ) Consumer Interactive (0.4 ) (0.2 ) Total intersegment eliminations (18.7 ) (18.9 ) Total revenue as reported $ 687.6 $ 619.3 As a result of displaying amounts in millions, rounding differences may exist in the table above. A reconciliation of Segment Adjusted EBITDA to income from continuing operations before taxes for the periods presented is as follows: Three Months Ended March 31, (in millions) 2020 2019 U.S. Markets Adjusted EBITDA $ 171.5 $ 142.0 International Adjusted EBITDA 60.2 65.0 Consumer Interactive Adjusted EBITDA 57.4 60.2 Total 289.1 267.2 Adjustments to reconcile to income from continuing operations before income taxes: Corporate expenses (1) (25.8 ) (28.3 ) Net interest expense (35.8 ) (43.5 ) Depreciation and amortization (90.3 ) (93.5 ) Acquisition-related revenue adjustments (2) — (4.2 ) Stock-based compensation (3) (2.3 ) (12.7 ) Mergers and acquisitions, divestitures and business optimization (4) (4.3 ) (11.3 ) Accelerated technology investment (5) (2.5 ) — Other (6) (35.7 ) (0.7 ) Net income attributable to non-controlling interests 4.1 2.4 Total adjustments (192.5 ) (191.7 ) Income from continuing operations before income taxes $ 96.6 $ 75.5 As a result of displaying amounts in millions, rounding differences may exist in the table above. (1) Certain costs that are not directly attributable to one or more of the segments remain in Corporate. These costs are typically enterprise-level costs and are primarily administrative in nature. (2) This adjustment represents certain non-cash adjustments related to acquired entities, predominantly adjustments to increase revenue resulting from purchase accounting reductions to deferred revenue we record on the opening balance sheets of acquired entities. Deferred revenue results when a company receives payment in advance of fulfilling their performance obligations under contracts. Business combination accounting rules require us to record deferred revenue of acquired entities at fair value if we are obligated to perform any future services under these contracts. The fair value of this deferred revenue is determined based on the direct and indirect incremental costs of fulfilling our performance obligations under these contracts, plus a normal profit margin. Generally, this fair value calculation results in a reduction to the purchased deferred revenue balance. The above adjustment includes an estimate for the increase in revenue equal to the difference between what the acquired entities would have recorded as revenue and the lower revenue we record as a result of the reduced deferred revenue balance. This increase is partially offset by an estimated decrease to revenue for certain acquired non-core customer contracts that are not classified as discontinued operations that will expire within approximately one year from the date of acquisition. Beginning in the third quarter of 2019, we no longer have these adjustments to revenue. (3) Consisted of stock-based compensation and cash-settled stock-based compensation. (4) For the three months ended March 31, 2020 , consisted of the following adjustments: $3.8 million of Callcredit integration costs; $2.1 million of acquisition expenses; $0.3 million of adjustments to contingent consideration expense from previous acquisitions; a ($1.8) million gain on the disposal of assets of a small business in our United Kingdom region that are classified as held-for-sale; and a ($0.1) million reimbursement for transition services provided to the buyers of certain of our discontinued operations. For the three months ended March 31, 2019 , consisted of the following adjustments: a $5.3 million loss on the impairment of an investment in a nonconsolidated affiliate; $4.2 million of Callcredit integration costs; a $0.9 million adjustment to contingent consideration expense from previous acquisitions; and $0.9 million of acquisition expenses. (5) Represents expenses associated with our accelerated technology investment. (6) For the three months ended March 31, 2020 , consisted of the following adjustments: $30.5 million of expense incurred in connection with the Ramirez litigation, as discussed in footnote 14, “Contingencies”; a $4.9 million loss from currency remeasurement of our foreign operations; $0.4 million of loan fees; $0.2 million of fees related to our new swap agreements; $0.2 million of administrative expenses associated with the Fraud Incident; and a ($0.5) million reimbursement of fees associated with the refinancing of our Senior Secured Credit Facility. For the three months ended March 31, 2019 , consisted of the following adjustments: a $0.3 million loss from currency remeasurement of our foreign operations; and $0.4 million of loan fees. Earnings from equity method investments included in non-operating income and expense was as follows: Three Months Ended March 31, (in millions) 2020 2019 U.S. Markets $ 0.6 $ 0.6 International 1.9 3.2 Total $ 2.6 $ 3.8

Contingencies Contingencies

Contingencies Contingencies	3 Months Ended
	Mar. 31, 2020
Contingencies [Abstract]
Contingencies Disclosure [Text Block]	14. Contingencies Litigation The following discussion describes material developments in previously disclosed material legal proceedings that occurred in the three months ended March 31, 2020. Refer to Part II, Item 8, Footnote 21, “Contingencies” of our Annual Report on Form 10-K for the year ended December 31, 2019, for a full description of our material pending legal proceedings at that time. Ramirez v. Trans Union LLC On February 27, 2020, the United States Court of Appeals for the Ninth Circuit issued its opinion in Ramirez v. Trans Union LLC , (No. 3:12-cv-00632-JSC, United States District Court for the Northern District of California), which affirmed in part and reversed and vacated in part the trial court’s judgment, holding that the punitive damages award was excessive in violation of constitutional due process. The appeals court remanded the case to the trial court with instructions to reduce the punitive damages award from approximately $52.0 million ( $6,353.08 per class member) to approximately $32.0 million ( $3,936.88 per class member). On April 8, 2020, the Ninth Circuit denied our petition for rehearing en banc. We determined that punitive damages were probable and reasonably estimable and recorded an estimated liability at March 31, 2020, in an amount equal to the portion of the punitive damages award affirmed by the Ninth Circuit and a partially offsetting insurance receivable, with expense of $30.5 million recorded in selling, general and administrative expense. We also recorded a related tax benefit of $7.6 million

Significant Accounting and Re_2

Significant Accounting and Reporting Policies (Policies)	3 Months Ended
	Mar. 31, 2020
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation Unless the context indicates otherwise, any reference in this report to the “Company,” “we,” “our,” “us,” and “its” refers to TransUnion and its consolidated subsidiaries, collectively. The accompanying unaudited Condensed Consolidated Financial Statements have been prepared in accordance with instructions to Form 10-Q and Rule 10-01 of Regulation S-X and do not include all the information required by accounting principles generally accepted in the United States of America (“U.S. GAAP”) for complete financial statements. In the opinion of management, all adjustments, including normal recurring adjustments, considered necessary for a fair statement have been included. All significant intercompany transactions and balances have been eliminated. The operating results of TransUnion for the periods presented are not necessarily indicative of the results that may be expected for the full year ending December 31, 2020. The Company’s year end Consolidated Balance Sheet data was derived from audited financial statements. Therefore, these unaudited consolidated financial statements should be read in conjunction with our audited financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2019 , filed with the Securities and Exchange Commission (“SEC”) on February 18, 2020.
Principles of Consolidation	Principles of Consolidation The consolidated financial statements of TransUnion include the accounts of TransUnion and all of its controlled subsidiaries. Investments in nonmarketable unconsolidated entities in which the Company is able to exercise significant influence are accounted for using the equity method. Investments in nonmarketable unconsolidated entities in which the Company is not able to exercise significant influence, our “Cost Method Investments,” are accounted for at our initial cost, minus any impairment, plus or minus changes resulting from observable price changes in orderly transactions for the identical or a similar investment of the same issuer.
COVID-19 Accounting Policy [Policy Text Block]	Impact of coronavirus (“COVID-19”) On Our Financial Statements The global spread and unprecedented impact of COVID-19 is complex and rapidly-evolving. On March 11, 2020, the World Health Organization declared COVID-19 a global pandemic and recommended extensive containment and mitigation measures worldwide. The outbreak has reached all of the regions in which we do business, and governmental authorities around the world have implemented numerous measures attempting to contain and mitigate the effects of the virus, including travel bans and restrictions, border closings, quarantines, shelter-in-place orders, shutdowns, limitations or closures of non-essential businesses, school closures, and social distancing requirements. The global spread of COVID-19 and actions taken in response to the virus have negatively affected workforces, customers, consumer confidence, financial markets, employment rates, consumer spending, credit markets and housing demand, caused significant economic and business disruption, volatility and financial uncertainty, and led to a significant economic downturn, including in the markets where we operate. We have assessed various accounting estimates and other matters, including those that require consideration of forecasted financial information, in context of the unknown future impacts of COVID-19 using information that is reasonably available to us at this time. The accounting estimates and other matters we have assessed include, but were not limited to, our allowance for doubtful accounts, stock-based compensation, goodwill and other long-lived assets, financial assets, valuation allowances for tax assets and revenue recognition. While based on our current assessment of these estimates there was not a material impact to our consolidated financial statements as of and for the quarter ended March 31, 2020, as additional information becomes available to us, our future assessment of these estimates, including our expectations at the time regarding the duration, scope and severity of the pandemic, as well as other factors, could materially and adversely impact our consolidated financial statements in future reporting periods.
Long Lived Assets [Policy Text Block]	Long-Lived Assets and Goodwill We review long-lived asset groups that are subject to amortization for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset group may not be recoverable. We test goodwill for impairment on an annual basis, in the fourth quarter, or on an interim basis if there is an indicator of impairment. As additional information becomes available to us, our future assessment of impairments to long-lived assets and goodwill could materially and adversely impact our consolidated financial statements in future reporting periods. The decrease in other intangibles, net of accumulated amortization, as of March 31, 2020, compared with December 31, 2019, includes a decrease of $63.6 million due to the translation adjustment of our foreign entities long-lived assets, net of accumulated amortization, resulting from changes to foreign exchange rates between periods. The decrease in goodwill as of March 31, 2020, compared with December 31, 2019, is due to a $100.2 million translation adjustment of our foreign entities goodwill resulting from changes to foreign exchange rates between periods. The offset to these translation adjustments are included in accumulated other comprehensive loss on our balance sheet.
Recent Accounting Pronouncements	Recently Adopted Accounting Pronouncements On June 16, 2016, the FASB issued Accounting Standards Update (“ASU”) No. 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments. This ASU amends the accounting for credit losses on available-for-sale debt securities and purchased financial assets with credit deterioration. In addition, these amendments require the measurement of all expected credit losses for financial assets, including trade accounts receivable, held at the reporting date based on historical experience, current conditions, and current expectations of future economic conditions based on reasonable and supportable forecasts. We adopted this guidance on January 1, 2020. Upon adoption and at March 31, 2020, this new guidance did not have a material impact on our consolidated financial statements. Recent Accounting Pronouncements Not Yet Adopted On December 18, 2019, the FASB issued ASU 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes. This ASU removes specific exceptions to the general principles in Topic 740. Among other things it eliminates the need for organizations to analyze whether the following apply in a given period: an exception to the incremental approach for intra-period tax allocation; exceptions to accounting for basis differences when there are ownership changes in foreign investments; and an exception in interim period income tax accounting for year-to-date losses that exceed anticipated losses. This amendment also improves financial statement preparers’ application of income tax-related guidance and simplifies GAAP for: franchise taxes that are partially based on income; transactions with a government that result in a step up in the tax basis of goodwill; separate financial statements of legal entities that are not subject to tax; and enacted changes in tax laws in interim periods. This guidance is effective for annual reporting periods beginning after December 15, 2020, including interim periods therein. We are assessing the impact this guidance will have on our consolidated financial statements. On January 16, 2020, the FASB issued ASU 2020-01, Investments-Equity Securities (Topic 321), Investments-Equity Method and Joint Ventures (Topic 323), and Derivatives and Hedging (Topic 815)-Clarifying the Interactions between Topic 321, Topic 323, and Topic 815. This amendment, among other things, clarifies that a company should consider observable transactions that require a company to either apply or discontinue the equity method of accounting under Topic 323, Investments-Equity Method and Joint Ventures, for the purposes of applying the measurement alternative in accordance with Topic 321 immediately before applying or upon discontinuing the equity method. This amendment also clarifies that, when determining the accounting for certain forward contracts and purchased options a company should not consider, whether upon settlement or exercise, if the underlying securities would be accounted for under the equity method or fair value option. This guidance is effective for annual reporting periods beginning after December 15, 2020, including interim periods therein. We are assessing the impact this guidance will have on our consolidated financial statements. We do not believe the impact will be material. In March 2020, the FASB issued ASU 2020-4, Reference Rate Reform (Topic 848), Facilitation of the Effects of Reference Rate Reform on Financial Reporting. In response to concerns about structural risks of interbank offered rates including the risk of cessation of the London Interbank Offered Rate (LIBOR), regulators in several jurisdictions around the world have undertaken reference rate reform initiatives to identify alternative reference rates that are more observable and less susceptible to manipulation. The provisions of this ASU are elective and apply to all entities, subject to meeting certain criteria, that have debt or hedging contracts, among other contracts, that reference LIBOR or another reference rate expected to be discontinued because of reference rate reform. This ASU, among other things, provides optional expedients and exceptions for a limited period of time for applying U.S. GAAP to these contracts if certain criteria are met to ease the potential burden in accounting for or recognizing the effects of reference rate reform on financial reporting. ASU 2020-04 is effective for all entities as of March 12, 2020 through December 31, 2022. We are still evaluating the impact, but do not expect the adoption of the standard to have a material impact on our Consolidated Financial Statements.

Significant Accounting and Re_3

Significant Accounting and Reporting Policies Allowance for Doubtful Accounts (Tables)	3 Months Ended
	Mar. 31, 2020
Allowance for Doubtful Accounts [Abstract]
Accounts Receivable, Allowance for Credit Loss [Table Text Block]	Trade Accounts Receivable We base our allowance for doubtful accounts estimate on our historical write-off experience, current conditions, an analysis of the aging of outstanding receivables and customer payment patterns, and specific reserves for customers in adverse financial condition or for existing contractual disputes. Beginning January 1, 2020, we also considered our current expectations of future economic conditions, including the impact of COVID-19, when estimating our allowance for doubtful accounts. We made an immaterial increase to our allowance for doubtful accounts as a result of our current estimate of the impact COVID-19 will have on the collectability of our accounts receivable. As additional information becomes available to us, our future assessment of our allowance for doubtful accounts could materially and adversely impact our consolidated financial statements in future reporting periods. The following is a rollforward of the allowance for doubtful accounts for the periods presented: Three Months Ended March 31, 2020 2019 Beginning Balance $ 19.0 $ 13.5 Provision for losses on trade accounts receivable 6.2 1.8 Write-offs, net of recovered accounts (2.0 ) (1.2 ) Ending balance $ 23.2 $ 14.1

Fair Value (Tables)

Fair Value (Tables)	3 Months Ended
	Mar. 31, 2020
Fair Value Disclosures [Abstract]
Financial Instruments Measured At Fair Value, on Recurring Basis	The following table summarizes financial instruments measured at fair value, on a recurring basis, as of March 31, 2020 : (in millions) Total Level 1 Level 2 Level 3 Assets Available-for-sale debt securities (Note 3) $ 2.8 $ — $ 2.8 $ — Total $ 2.8 $ — $ 2.8 $ — Liabilities Interest rate swaps and caps (Notes 7 and 8) $ 95.9 $ — $ 95.9 $ — Contingent consideration (Note 6) 7.5 — — 7.5 Total $ 103.4 $ — $ 95.9 $ 7.5

Other Current Assets (Tables)

Other Current Assets (Tables)	3 Months Ended
	Mar. 31, 2020
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Other Current Assets	Other current assets consisted of the following: (in millions) March 31, December 31, 2019 Prepaid expenses $ 83.4 $ 84.1 Other receivables 18.9 15.2 Income taxes receivable 17.7 19.0 Other investments 10.4 30.7 Marketable securities (Note 2) 2.8 2.9 Contract assets 1.5 1.4 Deferred financing fees (Note 10) 0.5 0.5 Other 15.9 16.4 Total other current assets $ 151.1 $ 170.2

Other Assets (Tables)

Other Assets (Tables)	3 Months Ended
	Mar. 31, 2020
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Other assets	Other assets consisted of the following: (in millions) March 31, December 31, 2019 Investments in nonconsolidated affiliates (Note 5) $ 132.3 $ 133.7 Right-of-use lease assets 71.1 71.2 Non-qualified employee benefit plan assets 10.7 12.7 Deposits 4.5 4.1 Notes receivable from affiliated companies 4.0 4.0 Deferred financing fees 1.8 1.9 Other 9.0 8.7 Total other assets $ 233.4 $ 236.3

Investments in Affiliated Com_2

Investments in Affiliated Companies (Tables)	3 Months Ended
	Mar. 31, 2020
Investments in Affiliated Companies [Abstract]
Investments in and Advances to Affiliates	Investments in affiliated companies consisted of the following: (in millions) March 31, December 31, 2019 Equity Method investments $ 42.4 $ 49.0 Cost Method investments 89.9 84.7 Total investments in affiliated companies (Note 4) $ 132.3 $ 133.7
Schedule Of Equity Investments Income Statement Information	Earnings from equity method investments, which are included in other non-operating income and expense, and dividends received from equity method investments consisted of the following: Three Months Ended (in millions) 2020 2019 Earnings from equity method investments (Note 13) $ 2.6 $ 3.8 Dividends received from equity method investments $ 0.6 $ 0.5

Other Current Liabilities (Tabl

Other Current Liabilities (Tables)	3 Months Ended
	Mar. 31, 2020
Payables and Accruals [Abstract]
Other Current Liabilities	Other current liabilities consisted of the following (in millions) March 31, December 31, 2019 Deferred revenue (Note 10) $ 90.3 $ 82.8 Accrued legal and regulatory (Note 14) 60.0 30.4 Accrued payroll 55.0 110.6 Income taxes payable 25.6 14.9 Accrued employee benefits 23.4 35.4 Operating lease liabilities 18.7 19.9 Contingent consideration (Note 2) 7.5 7.2 Accrued interest 4.0 4.0 Other 25.3 31.3 Total other current liabilities $ 309.8 $ 336.5

Other Liabilties (Tables)

Other Liabilties (Tables)	3 Months Ended
	Mar. 31, 2020
Other Liabilities Disclosure [Abstract]
Other Noncurrent Liabilities	Other liabilities consisted of the following: (in millions) March 31, December 31, 2019 Interest rate swaps and caps (Notes 2 and 8) $ 95.9 $ 46.6 Operating lease liabilities 58.1 57.2 Unrecognized tax benefits 32.4 32.8 Deferred revenue (Note 10) 12.5 15.7 Non-qualified and other employee benefit plan liabilities 9.2 11.6 Other 3.6 1.1 Total other liabilities $ 211.7 $ 165.0

Earnings Per Share (Tables)

Earnings Per Share (Tables)	3 Months Ended
	Mar. 31, 2020
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted	Basic and diluted weighted average shares outstanding and earnings per share were as follows: Three Months Ended (in millions, except per share data) 2020 2019 Income from continuing operations $ 74.3 $ 74.9 Less: net income from continuing operations attributable to noncontrolling interests (4.1 ) (2.4 ) Income from continuing operations attributable to TransUnion 70.2 72.5 Discontinued operations, net of tax — (1.6 ) Net income attributable to TransUnion $ 70.2 $ 70.9 Basic earnings per common share from: Income from continuing operations attributable to TransUnion $ 0.37 $ 0.39 Discontinued operations, net of tax — (0.01 ) Net Income attributable to TransUnion $ 0.37 $ 0.38 Diluted earnings per common share from: Income from continuing operations attributable to TransUnion $ 0.37 $ 0.38 Discontinued operations, net of tax — (0.01 ) Net Income attributable to TransUnion $ 0.37 $ 0.37 Weighted-average shares outstanding: Basic 189.2 186.6 Dilutive impact of stock based awards 3.0 4.4 Diluted 192.2 191.0

Reportable Segments (Tables)

Reportable Segments (Tables)	3 Months Ended
	Mar. 31, 2020
Segment Reporting [Abstract]
Selected Segment Financial Information and Disaggregated Revenue	Selected segment financial information and disaggregated revenue consisted of the following: Three Months Ended March 31, (in millions) 2020 2019 Gross Revenue: U.S. Markets: Financial Services $ 230.4 $ 189.1 Emerging Verticals 191.5 179.7 Total U.S. Markets 421.9 368.8 International: Canada 26.5 23.0 Latin America 24.3 25.3 United Kingdom 48.8 42.2 Africa 14.3 15.0 India 30.8 27.7 Asia Pacific 13.0 12.8 Total International 157.7 146.0 Total Consumer Interactive 126.7 123.4 Total revenue, gross $ 706.3 $ 638.2 Intersegment revenue eliminations: U.S. Markets $ (17.1 ) $ (17.5 ) International (1.3 ) (1.2 ) Consumer Interactive (0.4 ) (0.2 ) Total intersegment eliminations (18.7 ) (18.9 ) Total revenue as reported $ 687.6 $ 619.3 As a result of displaying amounts in millions, rounding differences may exist in the table above.
Reconciliation of Other Significant Reconciling Items from Segments to Consolidated [Table Text Block]	A reconciliation of Segment Adjusted EBITDA to income from continuing operations before taxes for the periods presented is as follows: Three Months Ended March 31, (in millions) 2020 2019 U.S. Markets Adjusted EBITDA $ 171.5 $ 142.0 International Adjusted EBITDA 60.2 65.0 Consumer Interactive Adjusted EBITDA 57.4 60.2 Total 289.1 267.2 Adjustments to reconcile to income from continuing operations before income taxes: Corporate expenses (1) (25.8 ) (28.3 ) Net interest expense (35.8 ) (43.5 ) Depreciation and amortization (90.3 ) (93.5 ) Acquisition-related revenue adjustments (2) — (4.2 ) Stock-based compensation (3) (2.3 ) (12.7 ) Mergers and acquisitions, divestitures and business optimization (4) (4.3 ) (11.3 ) Accelerated technology investment (5) (2.5 ) — Other (6) (35.7 ) (0.7 ) Net income attributable to non-controlling interests 4.1 2.4 Total adjustments (192.5 ) (191.7 ) Income from continuing operations before income taxes $ 96.6 $ 75.5 As a result of displaying amounts in millions, rounding differences may exist in the table above. (1) Certain costs that are not directly attributable to one or more of the segments remain in Corporate. These costs are typically enterprise-level costs and are primarily administrative in nature. (2) This adjustment represents certain non-cash adjustments related to acquired entities, predominantly adjustments to increase revenue resulting from purchase accounting reductions to deferred revenue we record on the opening balance sheets of acquired entities. Deferred revenue results when a company receives payment in advance of fulfilling their performance obligations under contracts. Business combination accounting rules require us to record deferred revenue of acquired entities at fair value if we are obligated to perform any future services under these contracts. The fair value of this deferred revenue is determined based on the direct and indirect incremental costs of fulfilling our performance obligations under these contracts, plus a normal profit margin. Generally, this fair value calculation results in a reduction to the purchased deferred revenue balance. The above adjustment includes an estimate for the increase in revenue equal to the difference between what the acquired entities would have recorded as revenue and the lower revenue we record as a result of the reduced deferred revenue balance. This increase is partially offset by an estimated decrease to revenue for certain acquired non-core customer contracts that are not classified as discontinued operations that will expire within approximately one year from the date of acquisition. Beginning in the third quarter of 2019, we no longer have these adjustments to revenue. (3) Consisted of stock-based compensation and cash-settled stock-based compensation. (4) For the three months ended March 31, 2020 , consisted of the following adjustments: $3.8 million of Callcredit integration costs; $2.1 million of acquisition expenses; $0.3 million of adjustments to contingent consideration expense from previous acquisitions; a ($1.8) million gain on the disposal of assets of a small business in our United Kingdom region that are classified as held-for-sale; and a ($0.1) million reimbursement for transition services provided to the buyers of certain of our discontinued operations. For the three months ended March 31, 2019 , consisted of the following adjustments: a $5.3 million loss on the impairment of an investment in a nonconsolidated affiliate; $4.2 million of Callcredit integration costs; a $0.9 million adjustment to contingent consideration expense from previous acquisitions; and $0.9 million of acquisition expenses. (5) Represents expenses associated with our accelerated technology investment. (6) For the three months ended March 31, 2020 , consisted of the following adjustments: $30.5 million of expense incurred in connection with the Ramirez litigation, as discussed in footnote 14, “Contingencies”; a $4.9 million loss from currency remeasurement of our foreign operations; $0.4 million of loan fees; $0.2 million of fees related to our new swap agreements; $0.2 million of administrative expenses associated with the Fraud Incident; and a ($0.5) million reimbursement of fees associated with the refinancing of our Senior Secured Credit Facility. For the three months ended March 31, 2019 , consisted of the following adjustments: a $0.3 million loss from currency remeasurement of our foreign operations; and $0.4 million of loan fees.
Earning from Equity Method Investments Included in Other Income and Expense, Net	Earnings from equity method investments included in non-operating income and expense was as follows: Three Months Ended March 31, (in millions) 2020 2019 U.S. Markets $ 0.6 $ 0.6 International 1.9 3.2 Total $ 2.6 $ 3.8

Summary of Significant Accounti

Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019	Dec. 31, 2018
Allowance for Doubtful Accounts [Abstract]
Accounts Receivable, Allowance for Credit Loss	$ 23.2	$ 14.1	$ 19	$ 13.5
Accounts Receivable, Allowance for Credit Loss, Period Increase (Decrease)	6.2	1.8
Accounts Receivable, Allowance for Credit Loss, Writeoff	(2)	$ (1.2)
Goodwill, Foreign Currency Translation Gain (Loss)	(100.2)
Finite Lived Intangible Assets, Foreign Currency Translation Gain (Loss)	$ 63.6

Financial Instruments Measured

Financial Instruments Measured At Fair Value, on Recurring Basis (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Liabilities, Fair Value Disclosure [Abstract]
Interest rate swaps	$ 95.9		$ 46.6
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net, Available-for-sale Securities	0
Investments, Fair Value Disclosure [Abstract]
Other Comprehensive Income (Loss), Securities, Available-for-sale, Adjustment, before Tax	0	$ 0
Available-for-sale Securities, Gross Realized Gain (Loss)	$ 0	0
Level 2 | Minimum [Member]
Investments, Fair Value Disclosure [Abstract]
Debt Securities, Available-for-sale, Maturity Date	Jan. 1, 2027
Level 2 | Maximum [Member]
Investments, Fair Value Disclosure [Abstract]
Debt Securities, Available-for-sale, Maturity Date	Dec. 31, 2033
Level 3
Contingent Consideration [Abstract]
Contingent Consideration, Maximum Payout	$ 7.5
Fair Value, Assets and Liabilities Measured on Recurring Basis, Gain (Loss) Included in Earnings	(0.3)	$ (0.9)
Fair Value, Recurring
Assets, Fair Value Disclosure [Abstract]
Available-for-sale debt securities	2.8
Total	2.8
Liabilities, Fair Value Disclosure [Abstract]
Interest rate swaps	95.9
Contingent consideration	7.5
Total	103.4
Fair Value, Recurring | Level 1
Assets, Fair Value Disclosure [Abstract]
Available-for-sale debt securities	0
Total	0
Liabilities, Fair Value Disclosure [Abstract]
Interest rate swaps	0
Contingent consideration	0
Total	0
Fair Value, Recurring | Level 2
Assets, Fair Value Disclosure [Abstract]
Available-for-sale debt securities	2.8
Total	2.8
Liabilities, Fair Value Disclosure [Abstract]
Interest rate swaps	95.9
Contingent consideration	0
Total	95.9
Fair Value, Recurring | Level 3
Assets, Fair Value Disclosure [Abstract]
Available-for-sale debt securities	0
Total	0
Liabilities, Fair Value Disclosure [Abstract]
Interest rate swaps	0
Contingent consideration	7.5
Total	$ 7.5

Other Current Assets (Detail)

Other Current Assets (Detail) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Prepaid expenses	$ 83.4	$ 84.1
Other Receivables, Gross, Current	18.9	15.2
Income Taxes Receivable, Current	17.7	19
Other investments	10.4	30.7
Marketable securities (Note 2)	2.8	2.9
Contract assets	1.5	1.4
Deferred financing fees (Note 10)	0.5	0.5
Other	15.9	16.4
Total other current assets	$ 151.1	$ 170.2

Other Assets (Detail)

Other Assets (Detail) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Other assets
Investments in nonconsolidated affiliates (Note 5)	$ 132.3	$ 133.7
Right-of-use lease assets	71.1	71.2
Assets Held-in-trust, Noncurrent	10.7	12.7
Deposits	4.5	4.1
Notes receivable from affiliated companies	4	4
Deferred financing fees	1.8	1.9
Other	9	8.7
Total other assets	$ 233.4	$ 236.3

Investments in Affiliated Com_3

Investments in Affiliated Companies (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2020	Dec. 31, 2019
Investments in and Advances to Affiliates [Line Items]
Unrealized Gain (Loss) on Securities	$ (5.3)
Equity method investments		$ 42.4	$ 49
Cost method Investments		89.9	84.7
Total investments in affiliated companies		$ 132.3	$ 133.7

Earnings and Dividends from Inv

Earnings and Dividends from Investment (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Investments in and Advances to Affiliates, Schedule of Investments [Abstract]
Earnings from equity method investments	$ 2.6	$ 3.8
Dividends received from equity method investments	$ 0.6	$ 0.5

Other Current Liabilities (Deta

Other Current Liabilities (Detail) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Deferred revenue (Note 10)	$ 90.3	$ 82.8
Accrued legal and regulatory (Note 14)	60	30.4
Accrued payroll	55	110.6
Income taxes payable	25.6	14.9
Accrued employee benefits	23.4	35.4
Operating lease liabilities	18.7	19.9
Contingent consideration (Note 2)	7.5	7.2
Accrued interest	4	4
Other	25.3	31.3
Total other current liabilities	$ 309.8	$ 336.5

Other Liabilities (Details)

Other Liabilities (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Other Liabilities Disclosure [Abstract]
Interest rate swaps and caps (Notes 2 and 8)	$ 95.9	$ 46.6
Operating lease liabilities	58.1	57.2
Unrecognized tax benefits	32.4	32.8
Deferred revenue (Note 10)	12.5	15.7
Non-qualified and other employee benefit plan liabilities	9.2	11.6
Other Noncurrent Other Liabilities	3.6	1.1
Total other liabilities	$ 211.7	$ 165

Debt outstanding (Detail)

Debt outstanding (Detail) - USD ($)	3 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Debt Disclosure [Abstract]
Debt outstanding	Debt outstanding consisted of the following: (in millions) March 31, December 31, 2019 Senior Secured Term Loan B-5, payable in quarterly installments through November 15, 2026, with periodic variable interest at LIBOR or alternate base rate, plus applicable margin (2.74% at March 31, 2020, and 3.55% at December 31, 2019), net of original issue discount and deferred financing fees of $4.7 million and $11.3 million, respectively, at March 31, 2020, and original issue discount and deferred financing fees of $4.8 million and $11.7 million, respectively, at December 31, 2019 $ 2,502.5 $ 2,508.5 Senior Secured Term Loan A-3, payable in quarterly installments through December 10, 2024, with periodic variable interest at LIBOR or alternate base rate, plus applicable margin (2.49% at March 31, 2020, and 3.30% at December 31, 2019), net of original issue discount and deferred financing fees of $3.1 million and $1.9 million, respectively, at March 31, 2020, and original issue discount and deferred financing fees of $3.3 million and $2.2 million, respectively, at December 31, 2019 1,137.8 1,144.5 Senior Secured Revolving Credit Facility — — Other notes payable 3.7 3.7 Finance leases 0.2 0.3 Total debt 3,644.2 3,657.0 Less short-term debt and current portion of long-term debt (58.6 ) (58.7 ) Total long-term debt $ 3,585.6 $ 3,598.3
Debt Instrument [Line Items]
Debt outstanding	$ 3,644,200,000	$ 3,657,000,000
Less short-term debt and current portion of long-term debt	(58,600,000)	(58,700,000)
Debt Issuance Costs, Noncurrent, Net	1,800,000	1,900,000
Total long-term debt	3,585,600,000	3,598,300,000
Senior Secured Term Loan B-5 [Member]
Debt Instrument [Line Items]
Debt outstanding	$ 2,502,500,000	$ 2,508,500,000
Debt Instrument, Maturity Date	Nov. 15, 2026
Long-term Debt, Percentage Bearing Variable Interest, Percentage Rate	2.74%	3.55%
Debt Instrument, Unamortized Discount (Premium), Net	$ 4,700,000	$ 4,800,000
Debt Issuance Costs, Noncurrent, Net	11,300,000	11,700,000
Debt Instrument, Fair Value Disclosure	2,398,900,000
Senior Secured Term Loan A-3 [Member]
Debt Instrument [Line Items]
Debt outstanding	$ 1,137,800,000	$ 1,144,500,000
Debt Instrument, Maturity Date	Dec. 10, 2024
Long-term Debt, Percentage Bearing Variable Interest, Percentage Rate	2.49%	3.30%
Debt Instrument, Unamortized Discount (Premium), Net	$ 3,100,000	$ 3,300,000
Debt Issuance Costs, Noncurrent, Net	1,900,000	2,200,000
Debt Instrument, Fair Value Disclosure	1,057,100,000
Senior Secured Revolving Line of Credit
Debt Instrument [Line Items]
Debt outstanding	0	0
Other notes payable
Debt Instrument [Line Items]
Debt outstanding	3,700,000	3,700,000
Finance leases
Debt Instrument [Line Items]
Debt outstanding	$ 200,000	$ 300,000

Senior Secured Credit Facility

Senior Secured Credit Facility (Detail) - USD ($)	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019	Jun. 30, 2016
Senior Secured Credit Facility
Debt and Lease Obligation	$ 3,644,200,000		$ 3,657,000,000
Letters of Credit Outstanding, Amount	100,000
Incremental Borrowings, Amount	$ 1,000,000,000
Incremental Borrowings Criteria, Percentage of Consolidated EBITDA	100.00%
Incremental Borrowings Criteria, Senior Secured Leverage ratio	4.25
Net Leverage Ratio Requirement	5.5
Covenant Dividend Restriction Amount	$ 75,000,000
Covenant Dividend Restriction Percentage of Consolidated EBITDA	7.50%
Net Leverage Ratio Requirement, Dividends	4.75
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax	$ 35,700,000	$ 12,800,000
Hedge instruments: Net change on interest rate cap	500,000	4,600,000
2020 3 year Interest Rate Swap [Member]
Senior Secured Credit Facility
Derivative, Notional Amount	$ 1,110,000,000
2020 3 year Interest Rate Swap [Member] | Minimum [Member]
Senior Secured Credit Facility
Derivative, Fixed Interest Rate	0.9125%
2020 3 year Interest Rate Swap [Member] | Maximum [Member]
Senior Secured Credit Facility
Derivative, Fixed Interest Rate	0.928%
2020 2 year Interest Rate Swap [Member]
Senior Secured Credit Facility
Derivative, Notional Amount	$ 1,150,000,000
2020 2 year Interest Rate Swap [Member] | Minimum [Member]
Senior Secured Credit Facility
Derivative, Fixed Interest Rate	0.52%
2020 2 year Interest Rate Swap [Member] | Maximum [Member]
Senior Secured Credit Facility
Derivative, Fixed Interest Rate	0.5295%
Interest Rate Swap [Member]
Senior Secured Credit Facility
Derivative, Notional Amount	$ 1,425,000,000
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax	35,300,000	10,400,000
Interest Expense, Hedge, gross of tax	3,700,000	500,000
Hedge instruments: Net change on interest rate cap	46,900,000	13,800,000
Interest Expense, Hedge, net of tax	3,100,000	300,000
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months	$ (35,900,000)
Interest Rate Swap [Member] | Minimum [Member]
Senior Secured Credit Facility
Derivative, Fixed Interest Rate	2.702%
Interest Rate Swap [Member] | Maximum [Member]
Senior Secured Credit Facility
Derivative, Fixed Interest Rate	2.706%
Interest Rate Cap [Member]
Senior Secured Credit Facility
Derivative, Cap Interest Rate	0.75%			0.75%
Derivative, Notional Amount	$ 1,246,900,000
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax	300,000	3,400,000
Hedge instruments: Net change on interest rate cap	500,000	4,600,000
Derivative Instruments, Gain Reclassified from Accumulated OCI into Income, Effective Portion	(2,100,000)	(1,600,000)
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	1,800,000	$ 1,000,000
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months	$ 4,500,000
Interest Rate Cap [Member] | London Interbank Offered Rate (LIBOR) [Member]
Senior Secured Credit Facility
Debt Instrument, Description of Variable Rate Basis	LIBOR
Interest Rate Cap [Member] | Minimum [Member]
Senior Secured Credit Facility
Derivative, Fixed Interest Rate	0.98%
Interest Rate Cap [Member] | Maximum [Member]
Senior Secured Credit Facility
Derivative, Fixed Interest Rate	0.994%
Senior Loans [Member]
Senior Secured Credit Facility
Debt Instrument, Description of Variable Rate Basis	LIBOR
Senior Secured Term Loan B-5 [Member]
Senior Secured Credit Facility
Debt and Lease Obligation	$ 2,502,500,000		2,508,500,000
Debt Instrument, Fair Value Disclosure	2,398,900,000
Senior Secured Revolving Line of Credit
Senior Secured Credit Facility
Debt and Lease Obligation	0		0
Line of Credit Facility, Remaining Borrowing Capacity	299,900,000
Senior Secured Term Loan A-3 [Member]
Senior Secured Credit Facility
Debt and Lease Obligation	1,137,800,000		$ 1,144,500,000
Debt Instrument, Fair Value Disclosure	$ 1,057,100,000

Stockholders' Equity (Details)

Stockholders' Equity (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Feb. 07, 2018	Dec. 31, 2017	Dec. 31, 2019	Feb. 13, 2017
Dividends, Common Stock [Abstract]
Dividends Payable, Date Declared	Feb. 28, 2020
Dividends Payable, Amount Per Share	$ 0.075
Dividends Payable, Date of Record	Mar. 13, 2020
Dividends Payable, Date to be Paid	Mar. 30, 2020
Payment, Tax Withholding, Share-based Payment Arrangement	$ 32.1	$ 36.8
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Preferred Stock, Shares Authorized	100				100
Preferred Stock, Shares Issued	0				0
Preferred Stock, Shares Outstanding	0				0
Stock Repurchase Program, Authorized Amount						$ 300
Stock Repurchase Program, Period in Force			3 years
Treasury Stock, Shares, Acquired				133.5
Stock Repurchase Program, Remaining Authorized Repurchase Amount	$ 166.5
Dividend Declared [Member]
Dividends, Common Stock [Abstract]
Dividends, Common Stock, Cash	14.4
Dividend Paid [Member]
Dividends, Common Stock [Abstract]
Dividends, Common Stock, Cash	14.2
Restricted Stock Units (RSUs) [Member]
Dividends, Common Stock [Abstract]
Dividends Paid, Share-based compensation, Cash	$ 0.5
Vesting of restricted stock units	0.9
Share-based Payment Arrangement, Shares Withheld for Tax Withholding Obligation	0.3
Stock, Shares Issued Net of Shares for Tax Withholdings	0.6

Revenue (Details)

Revenue (Details)	3 Months Ended
	Mar. 31, 2020
Revenue, Performance Obligation [Abstract]
Number of Types of Performance Obligations	2
Stand Ready Performance Obligations [Member]
Revenue, Performance Obligation [Abstract]
Revenue, Performance Obligation, Description of Good or Service	those that require us to stand ready to provide goods and services to a customer to use as and when requested (“Stand Ready Performance Obligations”)
Other Performance Obligations [Member]
Revenue, Performance Obligation [Abstract]
Revenue, Performance Obligation, Description of Good or Service	those that do not require us to stand ready (“Other Performance Obligations”)

Earnings Per Share (Details)

Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Net Income
Income from continuing operations	$ 74.3	$ 74.9
Less: net income attributable to the noncontrolling interests	(4.1)	(2.4)
Income from continuing operations attributable to TransUnion	70.2	72.5
Discontinued operations, net of tax	0	(1.6)
Net income attributable to TransUnion	$ 70.2	$ 70.9
Basic earnings per common share from:
Income from continuing operations attributable to TransUnion	$ 0.37	$ 0.39
Discontinued operations, net of tax	0	(0.01)
Net Income attributable to TransUnion common stockholders, Basic	0.37	0.38
Diluted earnings per common share from:
Income from continuing operations attributable to TransUnion	0.37	0.38
Discontinued operations, net of tax	0	(0.01)
Net Income attributable to TransUnion common stockholders, Diluted	$ 0.37	$ 0.37
Weighted Average Number of Shares Outstanding, Basic	189.2	186.6
Weighted Average Number Diluted Shares Outstanding Adjustment	3	4.4
Weighted Average Number of Shares Outstanding, Diluted	192.2	191
Performance Shares Contingency Not Met [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	1.3	1.3
Performance Shares [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	0.2	0.2

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Income Tax Examination [Line Items]
Effective tax benefit rate	23.10%	0.80%
U.S. federal statutory rate	21.00%	21.00%
Effective Income Tax, Reconciliation Foreign, Federal, and State, Amount	$ 16.2	$ 13.7
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount	(2.1)	(7.9)
Effective Income Tax Rate Reconciliation, Tax Expense (Benefit), Share-based Payment Arrangement, Amount	(16.2)	$ (21)
Unrecognized tax benefits	34.7		$ 32.8
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	$ 14.1		$ 13.6

Selected Financial Information

Selected Financial Information (Detail) $ in Millions	3 Months Ended
	Mar. 31, 2020USD ($)Segmentsegment	Mar. 31, 2019USD ($)
Segment Reporting Information [Line Items]
Revenue	$ 687.6	$ 619.3
Number of Reportable Segments | Segment	3
Number of Corporate Units | segment	1
Unrealized Gain (Loss) on Securities		5.3
Gain (Loss) on Sale of Assets and Asset Impairment Charges	$ 1.8	(5.3)
Loss Contingency, Loss in Period	30.5
Reimbursement	(0.1)
Write off of Deferred Debt Issuance Cost	(0.5)
Currency remeasurement	4.9	0.3
Loan Related Fees	0.4	0.4
Loan Related Fees - Hedge Fees	0.2
EBITDA [Abstract]
Segments Adjusted EBITDA	289.1	267.2
EBITDA Adjustment - Corporate Expense	(25.8)	(28.3)
EBITDA Adjustment - Net Interest Expense	(35.8)	(43.5)
EBITDA Adjustment - Depreciation and Amortization	(90.3)	(93.5)
EBITDA Adjustment - Acquisition Related Revenue Adjustment	0	(4.2)
EBITDA Adjustment - Stockbased Compensation	(2.3)	(12.7)
EBITDA Adjustment - Mergers and Acquisition	(4.3)	(11.3)
EBITDA Adjustment - Accelerated Technology	(2.5)	0
EBITDA Adjustment - Other	(35.7)	(0.7)
Less: net income attributable to the noncontrolling interests	(4.1)	(2.4)
EBITDA Adjustment - Total	(192.5)	(191.7)
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	96.6	75.5
Income (Loss) from Equity Method Investments	2.6	3.8
Acquisition-related Costs [Member]
Segment Reporting Information [Line Items]
Business Combination, Acquisition Related Costs	2.1	0.9
Fair Value, Inputs, Level 3 [Member]
Segment Reporting Information [Line Items]
Fair Value, Assets and Liabilities Measured on Recurring Basis, Gain (Loss) Included in Earnings	0.3	0.9
UNITED KINGDOM
Segment Reporting Information [Line Items]
Gain (Loss) on Sale of Assets and Asset Impairment Charges	(1.8)
U.S. Markets
Segment Reporting Information [Line Items]
Revenue	421.9	368.8
EBITDA [Abstract]
Segments Adjusted EBITDA	171.5	142
Income (Loss) from Equity Method Investments	0.6	0.6
U.S. Markets | Financial Services [Member]
Segment Reporting Information [Line Items]
Revenue	230.4	189.1
U.S. Markets | Emerging Verticals [Member]
Segment Reporting Information [Line Items]
Revenue	191.5	179.7
International
Segment Reporting Information [Line Items]
Revenue	157.7	146
EBITDA [Abstract]
Segments Adjusted EBITDA	60.2	65
Income (Loss) from Equity Method Investments	1.9	3.2
International | CANADA
Segment Reporting Information [Line Items]
Revenue	26.5	23
International | Latin America [Member]
Segment Reporting Information [Line Items]
Revenue	24.3	25.3
International | UNITED KINGDOM
Segment Reporting Information [Line Items]
Revenue	48.8	42.2
International | Africa [Member]
Segment Reporting Information [Line Items]
Revenue	14.3	15
International | INDIA
Segment Reporting Information [Line Items]
Revenue	30.8	27.7
International | Asia Pacific [Member]
Segment Reporting Information [Line Items]
Revenue	13	12.8
Consumer Interactive
Segment Reporting Information [Line Items]
Revenue	126.7	123.4
EBITDA [Abstract]
Segments Adjusted EBITDA	57.4	60.2
Reportable Segments [Member]
Segment Reporting Information [Line Items]
Revenue	706.3	638.2
Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Revenue	(18.7)	(18.9)
Intersegment Eliminations [Member] | U.S. Markets
Segment Reporting Information [Line Items]
Revenue	(17.1)	(17.5)
Intersegment Eliminations [Member] | International
Segment Reporting Information [Line Items]
Revenue	(1.3)	(1.2)
Intersegment Eliminations [Member] | Consumer Interactive
Segment Reporting Information [Line Items]
Revenue	(0.4)	(0.2)
Callcredit [Member] | Acquisition-related Costs [Member]
Segment Reporting Information [Line Items]
Business Combination, Integration Related Costs	3.8	$ 4.2
Fraudulent Incident [Member]
Segment Reporting Information [Line Items]
Other General and Administrative Expense	$ 0.2

Reportable Segments Earnings fr

Reportable Segments Earnings from Equity Method Investments Included in Non-Operating Income and Expense (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Segment Reporting Information [Line Items]
Earnings from equity method investments	$ 2.6	$ 3.8
U.S. Markets
Segment Reporting Information [Line Items]
Earnings from equity method investments	0.6	0.6
International
Segment Reporting Information [Line Items]
Earnings from equity method investments	$ 1.9	$ 3.2

Contingencies Contingencies Det

Contingencies Contingencies Details - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Loss Contingencies [Line Items]
Loss Contingency, Loss in Period	$ 30,500,000
Tax Adjustments, Settlements, and Unusual Provisions	22,300,000	$ 600,000
Ramirez v. Trans Union LLC [Member] | Judicial Ruling [Member] | Punitive Damages [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Awarded, Value	32,000,000		$ 52,000,000
Tax Adjustments, Settlements, and Unusual Provisions	7,600,000
Per person [Member] | Ramirez v. Trans Union LLC [Member] | Judicial Ruling [Member] | Punitive Damages [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Awarded, Value	$ 3,936.88		$ 6,353.08