Outfront Media (OUT) 10-K 22 Feb 24 2023 FY Annual report Financial data

Cover Page

Cover Page - USD ($) $ in Billions	12 Months Ended
	Dec. 31, 2023	Feb. 21, 2024	Jun. 30, 2023
Cover [Abstract]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2023
Document Transition Report	false
Entity File Number	001-36367
Entity Registrant Name	OUTFRONT Media Inc.
Entity Incorporation, State or Country Code	MD
Entity Tax Identification Number	46-4494703
Entity Address, Address Line One	90 Park Avenue, 9th Floor
Entity Address, City or Town	New York,
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	10016
City Area Code	212
Local Phone Number	297-6400
Title of 12(b) Security	Common Stock, $0.01, par value
Trading Symbol	OUT
Security Exchange Name	NYSE
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Attestation	true
Entity Shell Company	false
Entity Public Float			$ 2.6
Entity Common Stock, Shares Outstanding		165,877,514
Entity Central Index Key	0001579877
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	FY
Amendment Flag	false
Document Financial Statement Error Correction [Flag]	false

Audit Information

Audit Information	12 Months Ended
	Dec. 31, 2023
Audit Information [Abstract]
Auditor Name	PricewaterhouseCoopers LLP
Auditor Location	New York, New York
Auditor Firm ID	238

Consolidated Statements of Fina

Consolidated Statements of Financial Position - USD ($) $ in Millions	Dec. 31, 2023		Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 36		$ 40.4
Receivables, less allowances of $17.2 in 2023 and $20.2 in 2022	287.6		315.5
Prepaid lease and transit franchise costs	4.5		9.1
Other prepaid expenses	19.2		19.8
Assets held for sale	34.6		0
Other current assets	15.7		5.6
Total current assets	397.6		390.4
Noncurrent assets:
Property and equipment, net	657.8		699.8
Goodwill	2,006.4		2,076.4
Intangible assets	695.4	[1]	858.5
Operating lease assets	1,591.9	[2]	1,562.6
Prepaid MTA equipment deployment costs	0		363.2
Assets held for sale	214.3		0
Other assets	19.5		39.1
Total assets	5,582.9		5,990
Current liabilities:
Accounts payable	55.5		65.4
Accrued compensation	41.4		68
Accrued interest	34.2		31.1
Accrued lease and franchise costs	80		64.9
Other accrued expenses	56.2		47.6
Deferred revenues	37.7		35.3
Short-term debt	65		30
Short-term operating lease liabilities	180.9	[2]	188.1
Liabilities held for sale	24.1		0
Other current liabilities	18		21.2
Total current liabilities	593		551.6
Noncurrent liabilities:
Long-term debt, net	2,676.5		2,626
Deferred income tax liabilities, net	0		15.2
Asset retirement obligation	33		37.8
Operating lease liabilities	1,417.4	[2]	1,369
Liabilities held for sale	90.9		0
Other liabilities	42		41.2
Total liabilities	4,852.8		4,640.8
Commitments and contingencies
Preferred stock (2023 - 50.0 shares authorized, and 0.1 shares of Series A Preferred Stock issued and outstanding; 2022 - 50.0 shares authorized, and 0.4 shares of Series A Preferred Stock issued and outstanding)	119.8		119.8
Stockholders' equity:
Common stock 2023 - 450.0 shares authorized, and 165.1 shares issued and outstanding; 2022 - 450.0 shares authorized, and 164.2 shares issued or outstanding)	1.7		1.6
Additional paid-in capital	2,432.2		2,416.3
Distribution in excess of earnings	(1,821.1)		(1,183.4)
Net amount recognized in accumulated other comprehensive income	(5.8)		(9.1)
Total stockholders’ equity	607		1,225.4
Non-controlling interests	3.3		4
Total equity	730.1		1,349.2
Total liabilities and equity	$ 5,582.9		$ 5,990
[1] In 2023, in connection with the Transaction, Intangible assets, net, of $53.0 million was reclassified as Assets held for sale In 2023, in connection with the Transaction, Operating lease assets of $85.9 million was reclassified as Assets held for sale and Short-term operating lease liabilities of $15.1 million and Non-current Operating lease liabilities of $70.4 million were reclassified as Liabilities held for sale

Consolidated Statements of Fi_2

Consolidated Statements of Financial Position (Parenthetical) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Statement of Financial Position [Abstract]
Accounts Receivable, Allowance for Credit Loss, Current	$ 17.2	$ 20.2
Preferred stock authorized (shares)	50,000,000	50,000,000
Series A Preferred Stock issued (shares)	125,000	100,000
Series A Preferred Stock outstanding (shares)	125,000	100,000
Common stock authorized (shares)	450,000,000	450,000,000
Common stock issued (shares)	165,052,191	164,200,000
Common stock outstanding (shares)	165,052,191	164,200,000

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) shares in Millions, $ in Millions		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Revenues:
Billboard		$ 1,444.9	$ 1,384.7	$ 1,182.3
Transit and other		375.7	387.4	281.6
Total revenues		1,820.6	1,772.1	1,463.9
Expenses:
Operating		968.3	911.4	784
Selling, general and administrative		429.7	422.1	368.2
Net (gain) loss on dispositions		(14.2)	0.2	(4.5)
Impairment charges		534.7
Depreciation		79.3	77.4	79.4
Amortization		81.2	73.3	66
Total expenses		2,079	1,484.4	1,295.6
Operating income (loss)		(258.4)	287.7	168.3
Interest expense, net		(158.4)	(131.8)	(130.4)
Loss on extinguishment of debt		(8.1)	0	(6.3)
Other income (loss), net		0.3	(0.2)	0
Income (loss) before benefit (provision) for income taxes and equity in earnings of investee companies		(424.6)	155.7	31.6
Benefit (provision) for income taxes		(4)	(9.4)	3.4
Equity in earnings of investee companies, net of tax		(1.1)	2.8	1.4
Net income (loss) before allocation to non-controlling interests		(429.7)	149.1	36.4
Net income attributable to non-controlling interests		0.7	1.2	0.8
Net income (loss) attributable to OUTFRONT Media Inc.		$ (430.4)	$ 147.9	$ 35.6
Net income (loss) per common share:
Basic ($ per share)		$ (2.66)	$ 0.84	$ 0.05
Diluted ($ per share)		$ (2.66)	$ 0.84	$ 0.05
Weighted average shares outstanding:
Basic (shares)		164.9	161.1	145.4
Diluted (shares)	[1],[2],[3]	164.9	161.8	146.1
[1] The potential impact of 7.8 million shares of our common stock issuable upon conversion of our Series A Preferred Stock in 2023, 10.6 million shares of our common stock issuable upon conversion of our Series A Preferred Stock in 2022 and 25.0 million shares of our common stock issuable upon conversion of our Series A Preferred Stock in 2021 was antidilutive. The potential impact of 0.1 million shares of Class A equity interests of Outfront Canada in 2022 and 0.5 million shares of Class A equity interests of Outfront Canada in 2021 was antidilutive. The potential impact of an aggregate 1.8 million granted RSUs, PRSUs and stock options for 2023, 0.7 million granted RSUs, PRSUs and stock options for 2022 and 0.1 million granted RSUs, PRSUs and stock options for 2021 was antidilutive.

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Statement of Comprehensive Income [Abstract]
Net income (loss) before allocation to non-controlling interests	$ (429.7)	$ 149.1	$ 36.4
Net income attributable to non-controlling interests	0.7	1.2	0.8
Net income (loss) attributable to OUTFRONT Media Inc.	(430.4)	147.9	35.6
Other comprehensive income (loss), net of tax:
Cumulative translation adjustments	3.1	(7.9)	0
Net actuarial gain	0.2	2.8	8.4
Change in fair value of interest rate swap agreements	0	0.4	5.2
Total other comprehensive income (loss), net of tax	3.3	(4.7)	13.6
Total comprehensive income (loss)	$ (427.1)	$ 143.2	$ 49.2

Consolidated Statements of Equi

Consolidated Statements of Equity - USD ($) $ in Millions	Total	Series A Preferred Stock	Common Stock	Series A Preferred Stock	Common Stock	Additional paid-in capital	Distribution in excess of earnings	Distribution in excess of earnings Series A Preferred Stock	Distribution in excess of earnings Common Stock	Accumulated Other Comprehensive Loss	Non-controlling interests
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Series A Preferred Stock, par value per share ($ per share)	$ 0.01
Series A Preferred Stock Outstanding (shares) at Dec. 31, 2020				400,000
Series A Preferred Stock (dollars) at Dec. 31, 2020				$ 383.4
Increase (Decrease) in Temporary Equity [Roll Forward]
Dividends	$ (29.2)	$ (28)					$ (29.2)	$ (28)
Series A Preferred Stock Outstanding (shares) at Dec. 31, 2021				400,000
Series A Preferred Stock (dollars) at Dec. 31, 2021				$ 383.4
Total stockholders equity at Dec. 31, 2020	973.8				$ 1.4	$ 2,090.8	(1,100.4)			$ (18)
Non-controlling interests at Dec. 31, 2020											$ 26.5
Total equity at Dec. 31, 2020	1,383.7
Common stock outstanding (shares) at Dec. 31, 2020					144,500,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss) attributable to OUTFRONT Media Inc.	35.6						35.6
Net income attributable to non-controlling interests	0.8										0.8
Net income (loss) before allocation to non-controlling interests	36.4
Other comprehensive income (loss)	13.6									13.6
Other comprehensive income (loss) - total equity	13.6
RSUs and PSUs, Vested in Period, Fair Value					$ 0.1
Stock-based payments: Vested (shares)					1,100,000
Stock-based payments: Vested (dollars)	0.1
Stock-based payments: Amortization	28.6					28.6
Shares paid for tax withholding for stock-based payments (shares)					(500,000)
Shares paid for tax withholding for stock-based payments (dollars)	(8.9)					(8.9)
Class A equity interest redemptions (shares)					500,000
Class A equity interest redemptions (dollars)	11.8					11.8
Non-controlling interests: Class A equity interest redemptions (dollars)											(11.8)
Dividends	(29.2)	(28)					(29.2)	(28)
Dividends, Preferred Stock, Cash		(28)
Other	(3.3)					(3.3)
TotalEquityOther	(5.8)
Noncontrolling interests - Other											(2.5)
Total stockholders’ equity at Dec. 31, 2021	994.1				$ 1.5	2,119	(1,122)			(4.4)
Non-controlling interests at Dec. 31, 2021											13
Total equity at Dec. 31, 2021	$ 1,390.5
Common stock outstanding (shares) at Dec. 31, 2021					145,600,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Series A Preferred Stock, par value per share ($ per share)	$ 0.01
Stock Redeemed or Called During Period, Shares				(300,000)
Stock Redeemed or Called During Period, Value				$ (266.8)
Dividends	$ (197.3)	(12)		$ 3.2			(197.3)	(12)
Series A Preferred Stock Outstanding (shares) at Dec. 31, 2022	100,000			100,000
Series A Preferred Stock (dollars) at Dec. 31, 2022	$ 119.8			$ 119.8
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss) attributable to OUTFRONT Media Inc.	147.9						147.9
Net income attributable to non-controlling interests	1.2										1.2
Net income (loss) before allocation to non-controlling interests	149.1
Other comprehensive income (loss)	(4.7)									(4.7)
Other comprehensive income (loss) - total equity	(4.7)
Stock-based payments: Vested (shares)					1,200,000
Stock-based payments: Amortization	33.8					33.8
Shares paid for tax withholding for stock-based payments (shares)					(400,000)
Shares paid for tax withholding for stock-based payments (dollars)	(11.8)					(11.8)
Class A equity interest redemptions (shares)					400,000
Class A equity interest redemptions (dollars)	8.6					8.6
Non-controlling interests: Class A equity interest redemptions (dollars)											(8.6)
Conversion of Stock (Shares)					17,400,000
Conversion of Stock (dollars)	266.8				$ 0.1	266.7
Dividends	(197.3)	(12)		$ 3.2			(197.3)	(12)
Dividends, Preferred Stock, Cash		(8.8)
TotalEquityOther	(1.6)
Noncontrolling interests - Other											(1.6)
Total stockholders’ equity at Dec. 31, 2022	1,225.4				$ 1.6	2,416.3	(1,183.4)			(9.1)
Non-controlling interests at Dec. 31, 2022	4										4
Total equity at Dec. 31, 2022	$ 1,349.2
Common stock outstanding (shares) at Dec. 31, 2022	164,200,000				164,200,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Series A Preferred Stock, par value per share ($ per share)	$ 0.01
Dividends		(8.8)	$ (198.5)					(8.8)	$ (198.5)
Series A Preferred Stock Outstanding (shares) at Dec. 31, 2023	125,000			100,000
Series A Preferred Stock (dollars) at Dec. 31, 2023	$ 119.8			$ 119.8
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss) attributable to OUTFRONT Media Inc.	(430.4)						(430.4)
Net income attributable to non-controlling interests	0.7										0.7
Net income (loss) before allocation to non-controlling interests	(429.7)
Other comprehensive income (loss)	3.3									3.3
Other comprehensive income (loss) - total equity	3.3
RSUs and PSUs, Vested in Period, Fair Value					$ 0.1
Stock-based payments: Vested (shares)					1,600,000
Stock-based payments: Vested (dollars)	0.1
Stock-based payments: Amortization	28.4					28.4
Shares paid for tax withholding for stock-based payments (shares)					(700,000)
Shares paid for tax withholding for stock-based payments (dollars)	(12.5)					(12.5)
Dividends		(8.8)	$ (198.5)					$ (8.8)	$ (198.5)
Dividends, Preferred Stock, Cash		$ (8.8)
TotalEquityOther	(1.4)
Noncontrolling interests - Other											(1.4)
Total stockholders’ equity at Dec. 31, 2023	607				$ 1.7	$ 2,432.2	$ (1,821.1)			$ (5.8)
Non-controlling interests at Dec. 31, 2023	3.3										$ 3.3
Total equity at Dec. 31, 2023	$ 730.1
Common stock outstanding (shares) at Dec. 31, 2023	165,052,191				165,100,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Series A Preferred Stock, par value per share ($ per share)	$ 0.01

Consolidated Statements of Eq_2

Consolidated Statements of Equity (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Statement of Stockholders' Equity [Abstract]
Series A Preferred Stock, par value per share ($ per share)	$ 0.01	$ 0.01	$ 0.01	$ 0.01
Common stock, par value per share ($ per share)	$ 0.01	$ 0.01	$ 0.01	$ 0.01
Series A Preferred Stock dividend rate (%)	7%	7%	7%
Dividends declared per common share ($ per share)	$ 1.20	$ 1.20	$ 0.20

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Operating Activities:
Net income (loss) attributable to OUTFRONT Media Inc.	$ (430.4)	$ 147.9	$ 35.6
Adjustments to reconcile net income (loss) to net cash flow provided by operating activities:
Net income attributable to non-controlling interests	0.7	1.2	0.8
Depreciation and amortization	160.5	150.7	145.4
Deferred tax (benefit) provision	(0.1)	4.7	(4.7)
Stock-based compensation	28.4	33.8	28.6
Provision (recovery) for doubtful accounts	5.8	4.9	(4)
Accretion expense	3.1	2.8	2.7
Net (gain) loss on dispositions	(14.2)	0.2	(4.5)
Impairment charges	511.4	0	2.5
Loss on extinguishment of debt	8.1	0	6.3
Equity in earnings of investee companies, net of tax	1.1	(2.8)	(1.4)
Distributions from investee companies	1	1.9	0.7
Amortization of deferred financing costs and debt discount and premium	6.7	6.5	7.1
Change in assets and liabilities, net of investing and financing activities
Increase in receivables	(4)	(11.2)	(94.6)
Increase in prepaid MTA equipment deployment costs	(21.8)	(83.4)	(75.2)
(Increase) decrease in prepaid expenses and other current assets	(4.9)	6	15
Increase (decrease) in accounts payable and accrued expenses	(4)	(0.3)	38.9
Increase (decrease) in operating lease assets and liabilities	10.6	(15.4)	0.4
Increase in deferred revenues	3.5	4.5	1.4
Increase (decrease) in income taxes	(2.6)	1.3	(0.4)
Other, net	(4.7)	0.8	(1.8)
Net cash flow provided by operating activities	254.2	254.1	98.8
Investing Activities:
Capital expenditures	(86.8)	(89.8)	(73.8)
Acquisitions	(33.7)	(353.9)	(136.5)
MTA franchise rights	0.6	(6.8)	(16.5)
Proceeds from dispositions	12.4	1.3	2.8
Investment in investee companies	0	(0.3)	0
Net cash flow used for investing activities	(107.5)	(449.5)	(224)
Financing Activities:
Proceeds from long-term debt borrowings	450	0	500
Repayments of long-term debt borrowings	(400)	0	(500)
Proceeds from borrowings under short-term debt facilities	120	30	0
Repayments of borrowings under short-term debt facilities	(85)	0	(80)
Payments of deferred financing costs	(10.7)	(0.4)	(7.3)
Payments of debt extinguishment charges	(6.3)	0	(4.7)
Taxes withheld for stock-based compensation	(12.5)	(11.8)	(9)
Dividends	(207)	(205.8)	(57.5)
Other	0	0	(3.7)
Net cash flow used for financing activities	(151.5)	(188)	(162.2)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	0.4	(1)	0.2
Net decrease in cash, cash equivalents and restricted cash	(4.4)	(384.4)	(287.2)
Cash, cash equivalents and restricted cash at beginning of year	40.4	424.8	712
Cash, cash equivalents and restricted cash at end of year	36	40.4	424.8
Supplemental disclosure of cash flow information:
Cash paid for income taxes	6.7	3.3	1.7
Cash paid for interest	150.7	126.3	117.8
Non-cash investing and financing activities:
Accrued purchases of property and equipment	7.7	8.4	3.2
MTA franchise rights	$ 3	$ 3.1	$ 4.5

Description of Business and Bas

Description of Business and Basis of Presentation	12 Months Ended
	Dec. 31, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Description of Business and Basis of Presentation	Description of Business and Basis of Presentation Description of Business OUTFRONT Media Inc. (the “Company”) and its subsidiaries (collectively, “we,” “us” or “our”) is a real estate investment trust (“REIT”), which provides advertising space (“displays”) on out-of-home advertising structures and sites in the United States (the “U.S.”) and Canada. Our inventory consists of billboard displays, which are primarily located on the most heavily traveled highways and roadways in top Nielsen Designated Market Areas (“DMAs”), and transit advertising displays operated under exclusive multi-year contracts with municipalities in large cities across the U.S. and Canada. In total, we have displays in all of the 25 largest markets in the U.S. and approximately 150 markets across the U.S. and Canada. We currently manage our operations through two operating segments—U.S. Billboard and Transit, which is included in our U.S. Media reportable segment, and International. On October 22, 2023, the Company, Outfront Canada HoldCo 2 LLC, a wholly-owned subsidiary of the Company, and Outfront Canada Sub LLC, a wholly-owned subsidiary of the Company (together, the “Selling Subsidiaries”), entered into a Share Purchase Agreement (the “Share Purchase Agreement”) with Bell Media Inc. (the “Buyer”), relating to the sale of the Company’s outdoor advertising business in Canada (the “Canadian Business”). Pursuant to the Share Purchase Agreement, the Selling Subsidiaries agreed to sell all of its (and its affiliates) equity interests in Outdoor Systems Americas ULC and its subsidiaries (the “Transaction”), which hold all of the assets of the Canadian Business, to the Buyer, for C$410.0 million in cash, payable on the date of the consummation of the Transaction (the “Closing”). (See Note 12. Acquisitions and Dispositions : Dispositions : Canadian Business .) Basis of Presentation and Use of Estimates The accompanying consolidated financial statements have been prepared pursuant to the rules of the Securities and Exchange Commission (the “SEC”). In the opinion of our management, the accompanying financial statements reflect all adjustments, consisting of normal and recurring adjustments, necessary for a fair presentation of our financial position, results of operations and cash flows for the years presented. The preparation of our financial statements in conformity with accounting principles generally accepted in the United States of America (“GAAP”) requires management to make estimates, judgments and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amount of revenues and expenses during the reporting period. We base our estimates on historical experience and on various other assumptions that are believed to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Actual results may differ materially from these estimates under different assumptions or conditions. Out-of-Period Adjustment

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2023
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies Principles of Consolidation— The consolidated financial statements include the accounts of OUTFRONT Media Inc. and all of its subsidiaries in which a controlling interest is maintained. Controlling interest is determined by majority ownership interest and the absence of substantive third-party participating rights. Investments over which we have a significant influence or ownership of more than 20% but less than or equal to 50%, without a controlling interest, are accounted for under the equity method. Investments of 20% or less, over which we have no significant influence, that do not have a readily determinable fair value, are measured at cost less impairment, if any. Intercompany transactions have been eliminated. Cash and Cash Equivalents —Cash and cash equivalents consist of cash on hand and short-term (maturities of three months or less at the date of purchase) highly liquid investments. Receivables —Receivables consist primarily of trade receivables from customers, net of advertising agency commissions, and are stated net of an allowance for doubtful accounts. The provision for doubtful accounts is estimated based on historical bad debt experience, the aging of accounts receivable, industry trends and economic indicators, recent payment history for specific customers and expected future trends. New York Metropolitan Transportation Authority (the “MTA”) Agreement— Under our agreement with the MTA, as title of the various digital displays we are obligated to deploy transfers to the MTA on installation, the cost of deploying these screens throughout the transit system does not represent our property and equipment. The portion of deployment costs expected to be reimbursed from transit franchise fees that would otherwise be payable to the MTA are recorded as Prepaid MTA equipment deployment costs on the Consolidated Statement of Financial Position and charged to operating expenses as advertising revenue is generated. The short-term portion of Prepaid MTA equipment deployment costs represents the costs that we expect to recover from the MTA in the next twelve months. The portion of deployment costs expected to be reimbursed from advertising revenues that would otherwise be retained by us under the contract are recorded as Intangible assets on the Consolidated Statement of Financial Position and charged to amortization expense on a straight-line basis over the contract period. We assess the recoverability of the MTA contract on an as-needed basis and apply significant judgment in assessing factors to determine if there is an indication that the revenues expected to be generated over the term of the agreement will be sufficient to cover all or a portion of the equipment deployment costs, including evaluating macroeconomic conditions, industry trends, and events specific to the Company, including monitoring the Company’s actual installation of digital displays against the deployment schedule. Additionally, we assess these factors by comparing revenue projections of the deployed digital displays to actual financial results. Property and Equipment —Property and equipment is stated at cost. Depreciation is computed using the straight-line method over the estimated useful lives as follows: Buildings and improvements 15 to 35 years Advertising structures 3 to 20 years Furniture, equipment and other 3 to 10 years For advertising structures associated with a contract, the assets are depreciated over the shorter of the contract term or useful life. Maintenance and repair costs to maintain property and equipment in their original operating condition are charged to expense as incurred. Improvements or additions that extend the useful life of the assets are capitalized. When an asset is retired or otherwise disposed of, the associated cost and accumulated depreciation are removed and the resulting gain or loss is recognized. Construction in progress includes all costs capitalized related to projects, primarily related to in-process digital conversion and development, which have yet to be placed in service. Business Combinations and Asset Acquisitions —We routinely acquire out-of-home advertising assets, including advertising structures, permits and leasehold agreements. We determine the accounting for these transactions by first evaluating whether the assets acquired and liabilities assumed, if any, constitute a business using the guidelines in the Financial Accounting Standards Board (“FASB”) guidance for business combinations. If the assets acquired and liabilities assumed constitute a business, the purchase price is allocated to the tangible and identifiable intangible net assets acquired based on their estimated fair values with the excess of the purchase price over those estimated fair values recorded as goodwill. If the acquired assets do not constitute a business, we allocate the purchase price to the individual tangible and intangible assets acquired based on their relative fair values. Impairment of Long-Lived Assets— Long-lived assets held for sale are required to be measured at the lower of their carrying value (including unrecognized foreign currency translation adjustment losses) or fair value less cost to sell. Long-lived assets are assessed for impairment whenever there is an indication that the carrying amount of the asset may not be recoverable. Recoverability of these assets is determined by comparing the forecasted undiscounted cash flows generated by those assets to the respective asset’s carrying value. The amount of impairment loss, if any, will be measured by the difference between the net carrying value and the estimated fair value of the asset. We compute the estimated fair value of each asset group for which we perform a quantitative assessment using an income approach. Under the income approach, the fair value is determined using a discounted cash flow model. Our cash flow models requires us to use significant estimates and assumptions such as projected revenue growth rates, billboard lease and transit franchise expenses, other operating and selling, general and administrative expenses, capital expenditures, and discount rates. The projected revenue growth rates, billboard lease and transit franchise expenses, other operating and selling, general and administrative expenses and capital expenditures are based on our internal forecasts of future performance, as well as historical trends. The discount rates represent the weighted average cost of capital derived using known and estimated market metrics. There can be no assurance that these estimates and assumptions will prove to be an accurate prediction of the future, and a downward revision of these estimates and/or assumptions would decrease the fair values of our asset groups, which could result in additional impairment charges in the future. Goodwill— Goodwill is allocated to various reporting units. Goodwill is not amortized but is tested qualitatively and/or quantitatively at the reporting-unit level annually for impairment as of October 31 of each year and between annual tests if events occur or circumstances change that would more likely than not reduce the fair value below its carrying amount. A qualitative test assesses macroeconomic conditions, industry and market conditions, cost factors, overall financial performance and other relevant entity specific events, as well as events affecting a reporting unit. If after the qualitative assessment, we determined that it is more likely than not that the fair value of a reporting unit is less than its carrying value, we perform a quantitative assessment. We may also choose to only perform a quantitative assessment. We compute the estimated fair value of each reporting unit for which we perform a quantitative assessment using an income approach. Under the income approach, the fair value is determined using a discounted cash flow model. Our discounted cash flow value is calculated by adding the present value of the estimated annual cash flows over a discrete projection period to the terminal value, which represents the value of the projected cash flows beyond the discrete projection period. Our discounted cash flow model requires us to use significant estimates and assumptions such as projected revenue growth rates, terminal growth rates, billboard lease and transit franchise expenses, other operating and selling, general and administrative expenses, capital expenditures, contract renewals and extensions, and discount rates. The projected revenue growth rates, billboard lease and transit franchise expenses, other operating and selling, general and administrative expenses, capital expenditures and contract renewals and extensions for the projection period are based on our internal forecasts of future performance, as well as historical trends. The terminal value is estimated based on a perpetual nominal growth rate, which is based on projected long-range inflation and long-term industry projections. The discount rates represent the weighted average cost of capital derived using known and estimated market metrics. There can be no assurance that these estimates and assumptions will prove to be an accurate prediction of the future, and a downward revision of these estimates and/or assumptions would decrease the fair values of our reporting units, which could result in additional impairment charges in the future. If the carrying value of a reporting unit is greater than its fair value, a goodwill impairment charge will be recorded as a non-cash charge for the difference up to the carrying value of the goodwill. The loss recognized should not exceed the total amount of goodwill allocated to that reporting unit. Intangible Assets —Intangible assets, which primarily consist of acquired permits and leasehold agreements and franchise agreements, are amortized by the straight-line method over their estimated useful lives, which range from five Leases (Lessees) —We generally lease the underlying sites upon which the physical billboard structures on which we display advertising copy for our customers are located. We also have leases for office and warehouse spaces. All leases are recorded on the Consolidated Statement of Financial Position and we recognize lease expense on a straight-line basis over the lease term. We do not separate lease and non-lease components from contracts. Many of our leases include one or more options to renew, with renewal terms that can extend the lease term for varying lengths of time. These renewal provisions typically require consent of both parties. Many of our leases also contain termination provisions at our option, based on a variety of factors, including termination due to changing economic conditions of the related billboard location. Certain of our lease agreements include rental payments based on a percentage of revenue over contractual levels and others include rental payments adjusted periodically for inflation. Our lease agreements do not contain any material residual value guarantees or material restrictive covenants. When available, we use the rate implicit in the lease to discount lease payments to present value; however, most of our leases do not provide a readily determinable implicit rate. Therefore, we must estimate our incremental borrowing rate to discount the lease payments based on information available at lease commencement or amendment. We rent or sublease certain real estate to third parties. Leases (Lessors) —Our agreements with customers to advertise on our billboards are considered operating leases. Substantially all of our advertising structures (see Note 3. Property and Equipment, Net ) are utilized to lease advertising space to customers, for which the contracts are accounted for as rental income. Billboard display revenues are recognized as rental income on a straight-line basis over the customer lease term. We exclude from rental income all taxes assessed by a governmental authority that we collect from customers. These operating leases are short-term in duration, typically a term of 4 weeks to one year and do not include any variable lease provisions or options to extend the lease. Certain contracts may include provisions for the early termination of the lease after an agreed upon notice period. We account for non-lease installation services and the lease associated with providing advertising space on our billboards as a combined component under the lease standard. Hedging Activities —We have utilized interest rate cash flow swap agreements in the past to effectively convert a portion of our variable rate debt to a fixed rate and may do so again in the future. The interest rate swaps were designated and qualified as cash flow hedges and, as a result, changes in the fair value of the swaps were recorded in Other comprehensive income (loss) before taxes on the Consolidated Statements of Comprehensive Income. Revenue Recognition —We derive Revenues from the following sources: (i) billboard displays, (ii) transit displays, and (iii) other. Billboard display revenues are derived from providing advertising space to customers on our physical billboards or other outdoor structures. We generally (i) own the physical structures on which we display advertising copy for our customers, (ii) hold the legal permits to display advertising thereon, and (iii) lease the underlying sites. Billboard display revenues and installation services are recognized on a combined basis under the lease accounting standard as rental income on a straight-line basis over the customer lease term. Transit display revenues are derived from agreements with municipalities and transit operators, which entitle us to operate advertising displays within their transit systems, including on the interior and exterior of rail and subway cars and buses, as well as on benches, transit shelters, street kiosks and transit platforms. Transit display contracts typically require the installation and delivery of multiple advertising displays, for which locations are not specifically identified. Installation services are highly interdependent with the provision of advertising space, and therefore the installation and display of advertising is recognized as a single performance obligation. Transit display revenues are recognized based on the level of units displayed in proportion to the total units to be displayed over the contract period. Other revenues are derived primarily from providing print production services for advertisements to be displayed on our billboards or other outdoor sites, or on displays that we operate within transit systems. Print production services are not interrelated with the provision of advertising space and are considered a distinct performance obligation. Production revenue is recognized over the production period, which is typically very short in duration. Our billboard display and transit display contracts with customers range from four weeks to one year and billing commences at the beginning of the contract term, with payment generally due within 30 days of billing. For the majority of our contracts, transaction prices are explicitly stated. Any contracts with transaction prices that contain multiple performance obligations are allocated primarily based on a relative standalone selling price basis. Deferred revenues primarily consist of revenues collected in advance of being earned. For all revenue sources, we evaluate whether we should be considered the principal (i.e., report revenues on a gross basis) or an agent (i.e., report revenues on a net basis). We are considered the principal in our arrangements and report revenues on a gross basis, wherein the amounts billed to customers are recorded as revenues, and amounts paid to municipalities, transit operators and suppliers are recorded as expenses. We are considered the principal because we control the advertising space before and after the contract term, are primarily responsible to our customers, have discretion in pricing and typically have inventory risk. For space provided to advertisers through the use of an advertising agency whose commission is calculated based on a stated percentage of gross advertising spending, our Revenues are reported net of agency commissions. Concentration of Credit Risk— In the opinion of management, credit risk is limited due to the large number of customers and advertising agencies utilized. We perform credit evaluations on our customers and agencies and believe that the allowances for doubtful accounts are adequate. Billboard Property Lease and Transit Franchise Expenses —Our billboards are primarily located on leased real property. Lease agreements are negotiated for varying terms ranging from one month to multiple years, most of which provide renewal options. Lease costs consist of a fixed monthly amount and certain lease agreements also include contingent rent based on the revenues we generate from the leased site. Property leases are generally paid in advance for periods ranging from one The fixed component of lease costs is expensed evenly over the non-cancellable contract term, and contingent rent is expensed as incurred when the related revenues are recognized. Our transit franchise agreements have fixed terms, are typically terminable for convenience at the option of the governmental entity (other than with respect to the MTA), and generally provide for payments to the governmental entity based on a percentage of revenues generated under the contract and/or a guaranteed minimum annual payment. The costs which are determined based on a percentage of revenues are expensed as incurred when the related revenues are recognized, and the guaranteed minimum annual payment is expensed over the contract term. Direct Lease Acquisition Costs— Variable commissions directly associated with billboard revenues are amortized on a straight-line basis over the related customer lease term, which generally ranges from four weeks to one year. Amortization of direct lease acquisition costs are presented within Selling General and Administrative expenses (“ SG&A ”) in the accompanying Consolidated Statements of Operations. Foreign Currency Translation and Transactions— The assets and liabilities of foreign subsidiaries are translated at exchange rates in effect at the balance sheet date, while results of operations are translated at average exchange rates for the respective periods. Any gain or loss on translation is included within other comprehensive income (loss) and Accumulated other comprehensive loss on our Consolidated Statement of Financial Position. Foreign currency transaction gains and losses are included in Other income (loss), net, on the Consolidated Statements of Operations. Income Taxes —As a REIT, We generally will not be subject to U.S. federal income tax on our REIT taxable income that we distribute to our stockholders. We have elected to treat our subsidiaries that participate in certain non-REIT qualifying activities, and certain of our foreign subsidiaries, as taxable REIT subsidiaries (“TRSs”). As such, the taxable income of our TRSs will be subject to federal, state and foreign income taxation at regular corporate rates. Income taxes are accounted for under the asset and liability method of accounting. Deferred income tax assets and liabilities are recognized for the estimated future tax effects of temporary differences between the financial statement carrying amounts and their respective tax basis. Deferred tax assets are reduced by a valuation allowance if it is more likely than not that some or all of the deferred tax assets will not be realized. We have applied the FASB’s guidance relating to uncertainty in income taxes recognized. Under this guidance we may recognize the tax benefit from an uncertain tax position only if it is more likely than not that the tax position will be sustained on examination by taxing authorities, based on the technical merits of the position. The tax benefits recognized from such a position are measured based on the largest benefit that has a greater than fifty percent likelihood of being realized upon ultimate settlement. The guidance on accounting for uncertainty in income taxes also provides guidance on de-recognition, classification, interest and penalties on income taxes, and accounting in interim periods. Asset Retirement Obligation —An asset retirement obligation is established for the estimated future obligation, upon termination or non-renewal of a lease, associated with removing structures from the leased property and, when required by the contract, the cost to return the leased property to its original condition. These obligations are recorded at their present value in the period in which the liability is incurred and are capitalized as part of the related assets’ carrying value. Accretion of the liability is recognized in selling, general and administrative expenses and the capitalized cost is depreciated over the expected useful life of the related asset. Stock-based Compensation —We measure the cost of employee services received in exchange for an award of equity instruments based on the grant-date fair value of the award. The cost is recognized over the vesting period during which an employee is required to provide service in exchange for the award. Adoption of New Accounting Standards In the first quarter of 2023, we adopted the FASB’s guidance on the recognition and measurement of contract assets and contract liabilities acquired in a business combination. At the acquisition date, the acquirer should account for the related revenue contracts as if it had originated the contracts. The guidance also provides certain practical expedients for acquirers when recognizing and measuring acquired contract assets and contract liabilities from revenue contracts in a business combination. We will implement this guidance when accounting for business combinations in the future. In March 2020 and December 2022, the FASB issued guidance providing optional expedients and exceptions for accounting for contracts, hedging relationships and other transactions that reference to the London Interbank Offered Rate or another reference rate expected to be discontinued because of reference rate reform, if certain criteria are met. The guidance is effective for all entities as of March 12, 2020, through December 31, 2024. This guidance did not have a significant impact on our accounting for our existing debt. Recent Pronouncements In November 2023, the FASB issued guidance to improve reportable segment disclosure requirements, primarily through enhanced disclosures about significant segment expenses. The guidance is effective for fiscal years beginning after December 15, 2023 and interim periods within fiscal years beginning after December 15, 2024. Early adoption is permitted. We are currently evaluating the impact of this guidance on our consolidated financial statements. In December 2023, the FASB issued guidance to enhance the transparency and decision usefulness of income tax disclosures primarily related to rate reconciliation and income taxes paid information. The guidance is effective for annual periods beginning after December 15, 2024. Early adoption is permitted. Retrospective application is permitted. We are currently evaluating the impact of this guidance on our consolidated financial statements.

Property and Equipment, Net

Property and Equipment, Net	12 Months Ended
	Dec. 31, 2023
Property, Plant and Equipment [Abstract]
Property and Equipment, Net	Property and Equipment, Net The table below presents the balances of major classes of assets and accumulated depreciation. As of December 31, (in millions) 2023 (a) 2022 Land $ 110.1 $ 112.2 Buildings and improvements 42.7 56.5 Advertising structures 1,716.2 2,006.8 Furniture, equipment and other 173.9 183.4 Construction in progress 39.5 38.5 2,082.4 2,397.4 Less accumulated depreciation 1,424.6 1,697.6 Property and equipment, net $ 657.8 $ 699.8 (a) In 2023, in connection with the Transaction, Property and equipment were reclassified as Assets held for sale on the Consolidated Statement of Financial Position. (See Note 12. Acquisitions and Dispositions : Dispositions : Canadian Business .) Depreciation expense was $79.3 million in 2023, $77.4 million in 2022 and $79.4 million in 2021.

Long-Lived Assets

Long-Lived Assets	12 Months Ended
	Dec. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract]
Long-Lived Assets	Long-Lived Assets By the end of the first half of 2023, our U.S. Transit and Other reporting unit did not meet revenue expectations and as of June 30, 2023, our revenue pacing and outlook for the remainder of 2023 reflected a continued decline in transit revenues as compared to our 2023 forecast due to underperformance across our transit business, including the MTA transit system. As a result, in the second quarter of 2023, we determined that there was a decline in the long-term outlook for our U.S. Transit and Other reporting unit constituting a triggering event, which required an interim impairment analysis of goodwill and long-lived assets. Goodwill For the years ended December 31, 2023 and 2022, the changes in the book value of goodwill by segment were as follows: (in millions) U.S. Media Other Total As of December 31, 2021 $ 2,054.0 $ 23.8 $ 2,077.8 Currency translation adjustments — (1.4) (1.4) As of December 31, 2022 2,054.0 22.4 2,076.4 Dispositions (a) — (22.9) (22.9) Currency translation adjustments — 0.5 0.5 Impairment (47.6) — (47.6) As of December 31, 2023 2,006.4 — 2,006.4 (a) In 2023, in connection with the Transaction, Goodwill in Other was reclassified as Assets held for sale on the Consolidated Statement of Financial Position. (See Note 12. Acquisitions and Dispositions : Dispositions : Canadian Business .) The estimated fair value of our U.S. Transit and Other reporting unit exceeded its carrying value by 28% as of December 31, 2022, based on our goodwill impairment assessment in the prior year. As a result of the impairment analysis performed during the second quarter of 2023, we determined that the carrying value of our U.S. Transit and Other reporting unit exceeded its fair value and we recorded an impairment charge of $47.6 million in the Consolidated Statements of Operations. In the fourth quarter of 2023, we performed a qualitative assessment of two of our reporting units for possible goodwill impairment and no additional goodwill impairment was identified. As of December 31, 2023, all outstanding goodwill balances were associated with the U.S. billboard reporting unit. Intangible Assets Our identifiable intangible assets primarily consist of acquired permits and leasehold agreements, and franchise agreements, which grant us the right to operate out-of-home structures in specified locations and the right to provide advertising space on railroad and municipal transit properties. Identifiable intangible assets are amortized on a straight-line basis over their estimated useful life, which is the respective life of the agreement that in some cases includes historical experience of renewals. Our identifiable intangible assets consist of the following: (in millions) Gross Accumulated Impairment Net As of December 31, 2023: Permits and leasehold agreements $ 1,535.5 $ (893.8) $ — $ 641.7 Franchise agreements (a) 934.8 (426.4) (467.9) 40.5 Other intangible assets 19.5 (6.3) — 13.2 Total intangible assets (b) $ 2,489.8 $ (1,326.5) $ (467.9) $ 695.4 As of December 31, 2022: Permits and leasehold agreements $ 1,597.6 $ (868.7) $ — $ 728.9 Franchise agreements 533.2 (418.6) — 114.6 Other intangible assets 18.9 (3.9) — 15.0 Total intangible assets $ 2,149.7 $ (1,291.2) $ — $ 858.5 (a) We reclassified all Prepaid MTA equipment deployment costs (see Note 17. Commitments and Contingencies ) and recorded impairments in the second, third and fourth quarters of 2023 due to a decline in the long-term outlook of our U.S. Transit and Other reporting unit. (b) In 2023, in connection with the Transaction, Intangible assets, net, of $53.0 million was reclassified as Assets held for sale on the Consolidated Statement of Financial Position. (See Note 12. Acquisitions and Dispositions : Disposition s: Canadian Business. ) In 2023, we acquired 453 displays, resulting in amortizable intangible assets for permits and leasehold agreements, and other intangible assets of $30.4 million, which are amortized using the straight-line method over their estimated useful lives, an average period of 17.5 years, including five displays related to the Transaction, resulting in amortizable intangible assets for permits and leasehold agreements, and other intangible assets of $2.7 million, that has been reclassified as Assets held for sale on the Consolidated Statement of Financial Position. All of our intangible assets, except goodwill, are subject to amortization. Amortization expense was $81.2 million in 2023, $73.3 million in 2022 and $66.0 million in 2021. During the second quarter of 2023, we performed an analysis of the carrying value of our long-lived asset groups within our U.S. Transit and Other reporting unit as a result of the triggering event noted above utilizing undiscounted cash flows compared to the carrying value of the asset groups and determined that they were not fully recoverable. We then compared the fair value of the assets (calculated using a cash flow model) to the carrying value and we recorded impairment charges of $463.5 million, primarily representing a $443.1 million impairment charge related to our MTA asset group. As a result of our continued expectation of negative aggregate cash flows related to our MTA asset group, we recorded additional impairment charges of $12.1 million in the third quarter of 2023 and $11.0 million in the fourth quarter of 2023, representing additional MTA equipment deployment cost spending during the quarters. We expect our aggregate annual amortization expense for intangible assets for each of the years 2024 through 2028, to be as follows: (in millions) 2024 2025 2026 2027 2028 Amortization expense $ 68.9 $ 65.9 $ 61.1 $ 55.3 $ 51.2

Leases

Leases	12 Months Ended
	Dec. 31, 2023
Leases [Abstract]
Leases	Leases Lessee As of (in millions, except years and percentages) December 31, 2023 December 31, 2022 Operating lease assets (a) $ 1,591.9 $ 1,562.6 Short-term operating lease liabilities (a) 180.9 188.1 Non-current operating lease liabilities (a) 1,417.4 1,369.0 Weighted-average remaining lease term 10.9 years 11.0 years Weighted-average discount rate 6.2 % 5.8 % (a) In 2023, in connection with the Transaction, Operating lease assets of $85.9 million was reclassified as Assets held for sale and Short-term operating lease liabilities of $15.1 million and Non-current Operating lease liabilities of $70.4 million were reclassified as Liabilities held for sale on the Consolidated Statement of Financial Position. (See Note 12. Acquisitions and Dispositions : Disposition s: Canadian Business. ) Year Ended December 31, (in millions) 2023 2022 2021 Operating expenses $ 502.9 $ 451.5 $ 401.7 Selling, general and administrative expenses 13.0 10.5 9.3 Variable costs 143.7 113.8 80.6 Cash paid for operating leases 486.6 458.2 394.3 Leased assets obtained in exchange for new operating lease liabilities 397.2 285.1 279.4 (a) Includes an out-of-period adjustment of $5.2 million recorded in the first quarter of 2023 related to variable billboard property lease expenses (see Note 1. Description of Business and Basis of Presentation ). In 2023, 2022 and 2021, sublease income related to office properties was immaterial. As of December 31, 2023, minimum rental payments under operating leases are as follows: (in millions) Operating 2024 $ 275.2 2025 264.2 2026 239.9 2027 218.3 2028 178.5 2029 and thereafter 1,146.9 Total operating lease payments 2,323.0 Less: Interest 724.7 Present value of lease liabilities (a) $ 1,598.3 (a) Excludes minimum rental payments to be made in connection with $85.4 million of lease liabilities reclassified to Liabilities held for sale on the Consolidated Statement of Financial Position in connection with the Transaction. (See Note 12. Acquisitions and Dispositions : Dispositions : Canadian Business .) Lessor We recorded rental income of $1,349.3 million in 2023, $1,321.1 million in 2022 and $1,141.1 million in 2021 in Revenues on our Consolidated Statement of Operations. As of December 31, 2023, rental payments to be received under non-cancellable operating leases are as follows: (in millions) Rental Income 2024 $ 521.8 2025 28.8 2026 6.5 2027 2.3 2028 2.0 2029 and thereafter 10.0 Total minimum payments (a) $ 571.4 (a) Excludes an immaterial amount of rental payments to be received under non-cancellable operating leases related to amounts reclassified to Assets held for sale on the Consolidated Statement of Financial Position in connection with the Transaction. (See Note 12. Acquisitions and Dispositions : Dispositions : Canadian Business .)

Asset Retirement Obligation

Asset Retirement Obligation	12 Months Ended
	Dec. 31, 2023
Asset Retirement Obligation Disclosure [Abstract]
Asset Retirement Obligation	Asset Retirement Obligation The following table sets forth the change in the asset retirement obligations associated with our advertising structures located on leased properties. The obligation is calculated based on the assumption that all of our advertising structures will be removed within the next 50 years. The estimated annual costs to dismantle and remove the structures upon the termination or non-renewal of our leases are consistent with our historical experience. Year Ended December 31, (in millions) 2023 2022 Balance, at beginning of period $ 37.8 $ 36.4 Accretion expense 3.1 2.8 Additions 0.2 0.8 Liabilities settled (a) (8.2) (1.9) Foreign currency translation adjustments 0.1 (0.3) Balance, at end of period $ 33.0 $ 37.8 (a) In 2023, includes $5.0 million of liabilities reclassified to Liabilities held for sale on the Consolidated Statement of Financial Position in connection with the Transaction. (See Note 12. Acquisitions and Dispositions : Dispositions : Canadian Business

Related Party Transactions

Related Party Transactions	12 Months Ended
	Dec. 31, 2023
Related Party Transactions [Abstract]
Related Party Transactions	Related Party Transactions On January 18, 2023, we entered into a transaction with an affiliate of Providence Equity Partners L.L.C. (the “Providence Affiliate”) in connection with the Providence Affiliate’s purchase of a lease for certain outdoor advertising assets (the “Assets”) from a third-party seller. Pursuant to an agreement between us and the Providence Affiliate (the “Billboard Agreement”), we agreed to exclusively market, license and make advertising space available on the Assets to third-party advertisers for a term of up to ten years (the “Billboard Transaction”). In return, we will retain all revenues from the sale of advertising with respect to the Assets less the following payments to the Providence Affiliate or its payment designee, as applicable: (i) a minimum annual guarantee payment paid to the Providence Affiliate’s payment designee that increases from approximately $1.8 million to $3.5 million during the term of the Billboard Agreement; (ii) a minimum annual guarantee payment paid to the Providence Affiliate that increases from $8.5 million to $12.0 million by year six and adjusted for inflation thereafter through year ten; (iii) a percentage revenue share payment on gross revenues generated above $22.0 million paid to the Providence Affiliate during the term of the Billboard Agreement; (iv) a percentage revenue share payment on net revenues until $100.0 million is paid to the Providence Affiliate or its payment designee, as applicable; and (v) a one-time payment of $10.0 million paid to the Providence Affiliate on the fifth anniversary of the closing of the Billboard Transaction (the “Billboard Transaction Closing”) if we have not yet acquired the Assets as described below. The Billboard Agreement also provides that (i) we have the option to acquire the Assets from the Providence Affiliate between the third and seventh anniversaries of the Billboard Transaction Closing at pre-agreed prices depending on the time at which we exercise the option; (ii) prior to the seventh anniversary of the Billboard Transaction Closing, we have a right of first offer prior to any sale of the Assets by the Providence Affiliate to a third-party; and (iii) in the event of a termination of the Billboard Agreement by the Providence Affiliate after a sale to a third-party, we may in certain circumstances be entitled to receive a termination payment. As of December 31, 2023, operating lease assets related to the Billboard Agreement were $ 91.5 million 3.6 million 92.1 million Operating lease assets , current Operating lease liabilities and non-current Operating lease liabilities , respectively, on the Consolidated Statements of Financial Position. Billboard revenues related to the Billboard Agreement were $11.4 million in 2023 and recorded in Revenues on the Consolidated Statement of Operations. Operating lease expenses related to the Billboard Agreement were $11.5 million in 2023 and recorded in Operating expenses on the Consolidated Statement of Operations. Joint Ventures We have a 50% ownership interest in two active joint ventures that operate transit shelters in the greater Los Angeles area and Vancouver, and two active joint ventures which operate a total of seven billboard displays in New York and Boston. All of these ventures are accounted for as equity investments. These investments totaled $8.2 million as of December 31, 2023, and $12.2 million as of December 31, 2022, and are included in Other assets on the Consolidated Statements of Financial Position. In 2023, in connection with the Transaction, an equity investment was reclassified as Assets held for sale on the Consolidated Statement of Financial Position. (See Note 12. Acquisitions and Dispositions : Dispositions : Canadian Business .) We provided sales and management services to these joint ventures and recorded management fees in Revenues on the Consolidated Statement of Operations of $4.9 million in 2023, $8.6 million in 2022 and $6.3 million in 2021.

Debt

Debt	12 Months Ended
	Dec. 31, 2023
Debt Disclosure [Abstract]
Debt	Debt Debt, net, consists of the following: As of December 31, (in millions, except percentages) 2023 2022 Short-term debt: AR Facility $ 65.0 $ 30.0 Total short-term debt 65.0 30.0 Long-term debt: Term loan, due 2026 $ 598.9 $ 598.6 Senior secured notes: 7.375% senior secured notes, due 2031 450.0 — Senior unsecured notes: 6.250% senior unsecured notes, due 2025 — 400.0 5.000% senior unsecured notes, due 2027 650.0 650.0 4.250% senior unsecured notes, due 2029 500.0 500.0 4.625% senior unsecured notes, due 2030 500.0 500.0 Total senior unsecured notes 1,650.0 2,050.0 Debt issuance costs (22.4) (22.6) Total long-term debt, net 2,676.5 2,626.0 Total debt, net $ 2,741.5 $ 2,656.0 Weighted average cost of debt 5.7 % 5.2 % Term Loan The interest rate on the term loan due in 2026 (the “Term Loan”) was 7.1% per annum as of December 31, 2023. As of December 31, 2023, a discount of $1.1 million on the Term Loan remains unamortized. The discount is being amortized through Interest expense, net, on the Consolidated Statement of Operations. Revolving Credit Facility We also have a $500.0 million revolving credit facility, which matures in 2028 (the “Revolving Credit Facility,” together with the Term Loan, the “Senior Credit Facilities”). During the second quarter of 2023, the Company, along with its wholly-owned subsidiaries, Outfront Media Capital LLC (“Finance LLC”) and Outfront Media Capital Corporation (together with Finance LLC, the “Borrowers”), and the other guarantors party thereto, entered into two amendments (the “Amendments”) to the Credit Agreement (as defined below). The Amendments provide for (i) the replacement of the London Interbank Offered Rate with the Secured Overnight Financing Rate as the interest rate benchmark , (ii) the extension of the maturity date of the Revolving Credit Facility from its previous maturity date of November 18, 2024 to June 15, 2028, and (iii) an increase in the interest rate margins applicable to the Borrowers under the Revolving Credit Facility from a range of 1.25% to 1.75% to a range of 1.75% to 2.25%, in the case of Secured Overnight Financing Rate borrowings, based on the Borrowers’ leverage ratio. The Amendments also include springing maturity refinancing provisions with respect to the Borrowers’ outstanding term loan indebtedness and certain series of senior notes issued by the Borrowers, in each case, which have maturity dates prior to June 15, 2028, as well as other clarifying, conforming and ministerial changes to the Credit Agreement. As of December 31, 2023, there were no outstanding borrowings under the Revolving Credit Facility. The commitment fee based on the amount of unused commitments under the Revolving Credit Facility was $1.7 million in 2023, $1.6 million in 2022 and $1.8 million in 2021. As of December 31, 2023, we had issued letters of credit totaling approximately $6.5 million against the letter of credit facility sublimit under the Revolving Credit Facility. Standalone Letter of Credit Facilities As of December 31, 2023, we had issued letters of credit totaling approximately $75.6 million under our aggregate $81.0 million standalone letter of credit facilities. The total fees under the letter of credit facilities in 2023, 2022 and 2021 were immaterial. Accounts Receivable Securitization Facilities As of December 31, 2023, we have a $150.0 million revolving accounts receivable securitization facility (the “AR Facility”), which terminates in May 2025, unless further extended. In connection with the AR Facility, Outfront Media LLC and Outfront Media Outernet Inc., each a wholly-owned subsidiary of the Company, and certain of the Company’s taxable REIT subsidiaries (“TRSs”) (the “Originators”), will sell and/or contribute their respective existing and future accounts receivable and certain related assets to either Outfront Media Receivables LLC, a special purpose vehicle and wholly-owned subsidiary of the Company relating to the Company’s qualified REIT subsidiary accounts receivable assets (the “QRS SPV”) or Outfront Media Receivables TRS, LLC a special purpose vehicle and wholly-owned subsidiary of the Company relating to the Company’s TRS accounts receivable assets (the “TRS SPV” and together with the QRS SPV, the “SPVs”). The SPVs may transfer undivided interests in their respective accounts receivable assets to certain purchasers from time to time (the “Purchasers”). The SPVs are separate legal entities with their own separate creditors who will be entitled to access the SPVs’ assets before the assets become available to the Company. Accordingly, the SPVs’ assets are not available to pay creditors of the Company or any of its subsidiaries, although collections from the receivables in excess of amounts required to repay the Purchasers and other creditors of the SPVs may be remitted to the Company. Outfront Media LLC will service the accounts receivables on behalf of the SPVs for a fee. The Company has agreed to guarantee the performance of the Originators and Outfront Media LLC, in its capacity as servicer, of their respective obligations under the agreements governing the AR Facility. Neither the Company, the Originators nor the SPVs guarantee the collectability of the receivables under the AR Facility. Further, the TRS SPV and the QRS SPV are jointly and severally liable for their respective obligations under the agreements governing the AR Facility. As of December 31, 2023, there were $65.0 million of outstanding borrowings under the AR Facility, at a borrowing rate of 6.5%. As of December 31, 2023, borrowing capacity remaining under the AR Facility was $85.0 million based on approximately $316.0 million of accounts receivable that could be used as collateral for the AR Facility in accordance with the agreements governing the AR Facility. The commitment fee based on the amount of unused commitments under the AR Facility was $0.2 million in 2023, $0.3 million in 2022 and immaterial in 2021. In January 2024, we made a repayment of $10.0 million under the AR Facility. Senior Secured Notes On November 20, 2023, the Borrowers issued $450.0 million aggregate principal amount of 7.375% Senior Secured Notes due 2031 (the “2031 Notes”) in a private placement. The 2031 Notes are senior secured obligations of the Borrowers and are guaranteed on a senior secured basis by the Company and each of its direct and indirect domestic subsidiaries that guarantee the Senior Credit Facilities (the “Guarantors”). The Notes and the related guarantees are secured by liens on substantially all of the assets of the Borrowers and the Guarantors, on a pari passu basis with the Senior Credit Facilities (subject to the terms of an intercreditor agreement), subject to certain exceptions and permitted liens, including the exclusion of equity in Canadian subsidiaries that are pending sale. Interest on the 2031 Notes is payable on May 15 and November 15 of each year, beginning on May 15, 2024. On or after November 15, 2026, the Borrowers may redeem at any time, or from time to time, some or all of the 2031 Notes. Prior to such date the Borrowers may redeem up to 40% of the aggregate principal amount with the net proceeds of certain equity offerings, provided that at least 50% of the aggregate principal amount of the 2031 Notes will remain outstanding after the redemption. In addition the Borrowers may redeem some or all of the 2031 Notes at any time, or from time to time, prior to November 15, 2026, at a price equal to 100% of the principal amount of the 2031 Notes to be redeemed, plus the applicable “make whole” premium, plus accrued and unpaid interest, if any, to the date of redemption. On November 21, 2023, we used the net proceeds from the issuance of the 2031 Notes to redeem all of our outstanding 6.250% Senior Unsecured Notes due 2025 (the “2025 Notes”) and to pay accrued and unpaid interest on the 2025 Notes, if any, to, but excluding, the redemption date, and to pay fees and expenses in connection with the 2031 Notes offering and the 2025 Notes redemption. In the fourth quarter of 2023, we recorded a Loss on extinguishment of debt of $8.1 million relating to the 2025 Notes on the Consolidated Statement of Operations. Debt Covenants Our credit agreement, dated as of January 31, 2014 (as amended, restated, amended and restated, supplemented or otherwise modified, the “Credit Agreement”), governing the Senior Credit Facilities, the agreements governing the AR Facility, and the indentures governing our senior notes contain customary affirmative and negative covenants, subject to certain exceptions, including but not limited to those that restrict the Company’s and its subsidiaries’ abilities to (i) pay dividends on, repurchase or make distributions in respect to the Company’s or its wholly-owned subsidiary, Outfront Media Capital LLC’s capital stock or make other restricted payments other than dividends or distributions necessary for us to maintain our REIT status, subject to certain conditions and exceptions, (ii) enter into agreements restricting certain subsidiaries’ ability to pay dividends or make other intercompany or third-party transfers, and (iii) incur additional indebtedness. One of the exceptions to the restriction on our ability to incur additional indebtedness is satisfaction of a Consolidated Total Leverage Ratio, which is the ratio of our consolidated total debt to our Consolidated EBITDA (as defined in the Credit Agreement) for the trailing four consecutive quarters, of no greater than 6.0 to 1.0. As of December 31, 2023, our Consolidated Total Leverage Ratio was 5.3 to 1.0 in accordance with the Credit Agreement. The terms of the Credit Agreement (and under certain circumstances, the agreements governing the AR Facility) require that we maintain a Consolidated Net Secured Leverage Ratio, which is the ratio of (i) our consolidated secured debt (less up to $150.0 million of unrestricted cash) to (ii) our Consolidated EBITDA (as defined in the Credit Agreement) for the trailing four consecutive quarters, of no greater than 4.5 to 1.0. As of December 31, 2023, our Consolidated Net Secured Leverage Ratio was 2.0 to 1.0 in accordance with the Credit Agreement. As of December 31, 2023, we are in compliance with our debt covenants. Deferred Financing Costs As of December 31, 2023, we had deferred $27.4 million in fees and expenses associated with the Term Loan, the Revolving Credit Facility, the AR Facility and our senior notes. We are amortizing the deferred fees through Interest expense, net, on our Consolidated Statement of Operations over the respective terms of the Term Loan, Revolving Credit Facility, AR Facility and our senior notes. Fair Value

Accumulated Other Comprehensive

Accumulated Other Comprehensive Loss	12 Months Ended
	Dec. 31, 2023
Accumulated Other Comprehensive Income [Abstract]
Accumulated Other Comprehensive Loss	Accumulated Other Comprehensive Loss The following table presents the changes in the components of accumulated other comprehensive loss. (in millions) Cumulative Net Loss on Interest Rate Cash Flow Swaps Accumulated As of December 31, 2020 $ (1.3) $ (11.1) $ (5.6) $ (18.0) Other comprehensive income before reclassifications — 7.9 5.2 13.1 Amortization of actuarial losses reclassified to net income (a) — 0.5 — 0.5 Total other comprehensive income, net of tax — 8.4 5.2 13.6 As of December 31, 2021 (1.3) (2.7) (0.4) (4.4) Other comprehensive income (loss) before reclassifications (7.9) 2.8 0.4 (4.7) Total other comprehensive income (loss), net of tax (7.9) 2.8 0.4 (4.7) As of December 31, 2022 (9.2) 0.1 — (9.1) Other comprehensive income before reclassifications 3.1 0.2 — 3.3 Total other comprehensive income, net of tax 3.1 0.2 — 3.3 As of December 31, 2023 $ (6.1) $ 0.3 $ — $ (5.8) (a) See Note 14. Retirement Benefits to the Consolidated Financial Statements for additional details of items reclassified from accumulated other comprehensive loss to net income. Net actuarial gain (loss) included in other comprehensive income (loss) is net of a tax provision of $1.0 million in 2022 and $2.9 million in 2021. There was no tax provision or benefit related to net actuarial gain (loss) included in other comprehensive income in 2023.

Equity

Equity	12 Months Ended
	Dec. 31, 2023
Equity [Abstract]
Equity	Equity As of December 31, 2023, 450,000,000 shares of our common stock, par value $0.01 per share, were authorized; 165,052,191 shares were issued and outstanding; and 50,000,000 shares of our preferred stock, par value $0.01 per share, were authorized with 125,000 shares of our Series A Convertible Perpetual Preferred Stock (the “Series A Preferred Stock”), par value $0.01 per share, issued and outstanding. The Series A Preferred Stock ranks senior to the shares of the Company’s common stock with respect to dividend and distribution rights. Holders of the Series A Preferred Stock are entitled to a cumulative dividend accruing at the initial rate of 7.0% per year, payable quarterly in arrears, subject to increases as set forth in the Articles Supplementary, effective as of April 20, 2020 (the “Articles”). Dividends may, at the option of the Company, be paid in cash, in-kind, through the issuance of additional shares of Series A Preferred Stock or a combination of cash and in-kind, until April 20, 2028, after which time dividends will be payable solely in cash. So long as any shares of Series A Preferred Stock remain outstanding, the Company may not, without the consent of a specified percentage of holders of shares of Series A Preferred Stock, declare a dividend on, or make any distributions relating to, capital stock that ranks junior to, or on a parity basis with, the Series A Preferred Stock, subject to certain exceptions, including but not limited to (i) any dividend or distribution in cash or capital stock of the Company on or in respect of the capital stock of the Company to the extent that such dividend or distribution is necessary to maintain the Company’s status as a REIT; and (ii) any dividend or distribution in cash in respect of our common stock that, together with the dividends or distributions during the 12-month period immediately preceding such dividend or distribution, is not in excess of 5% of the aggregate dividends or distributions paid by the Company necessary to maintain its REIT status during such 12-month period. If any dividends or distributions in respect of the shares of our common stock are paid in cash, the shares of Series A Preferred Stock will participate in the dividends or distributions on an as-converted basis up to the amount of their accrued dividend for such quarter, which amounts will reduce the dividends payable on the shares of Series A Preferred Stock dollar-for-dollar for such quarter. The Series A Preferred Stock is convertible at the option of any holder at any time into shares of our common stock at an initial conversion price of $16.00 per share and an initial conversion rate of 62.50 shares of our common stock per share of Series A Preferred Stock, subject to certain anti-dilution adjustments and a share cap as set forth in the Articles. Subject to certain conditions set forth in the Articles (including a change of control), each of the Company and the holders of the Series A Preferred Stock may convert or redeem the Series A Preferred Stock at the prices set forth in the Articles, plus any accrued and unpaid dividends. During 2023, we paid cash dividends of $8.8 million on the Series A Preferred Stock. As of December 31, 2023, the maximum number of shares of common stock that could be required to be issued on conversion of the outstanding shares of Series A Preferred Stock was approximately 7.8 million shares. We have a sales agreement in connection with an “at-the-market” equity offering program (the “ATM Program”), under which we may, from time to time, issue and sell shares of our common stock up to an aggregate offering price of $300.0 million. We have no obligation to sell any of our common stock under the sales agreement and may at any time suspend solicitations and offers under the sales agreement. In 2023, no shares of our common stock were sold under the ATM Program. As of December 31, 2023, we had approximately $232.5 million of capacity remaining under the ATM Program. On February 21, 2024, we announced that our board of directors approved a quarterly cash dividend of $0.30 per share on our common stock, payable on March 28, 2024, to stockholders of record at the close of business on March 1, 2024.

Revenues

Revenues	12 Months Ended
	Dec. 31, 2023
Revenue from Contract with Customer [Abstract]
Revenues	Revenues We do not disclose the value of unsatisfied performance obligations for contracts with an original expected term of one year or less, which primarily represent the transaction price allocated to the remaining display period for unsatisfied transit franchise contracts. The following table summarizes revenues by source: Years Ended December 31, (in millions) 2023 2022 2021 Billboard: Static displays $ 948.0 $ 936.9 $ 829.8 Digital displays 441.7 400.8 308.1 Other 55.2 47.0 44.4 Billboard revenues 1,444.9 1,384.7 1,182.3 Transit: Static displays 191.8 212.6 170.5 Digital displays 146.6 139.1 81.3 Other 31.1 29.4 26.2 Total transit revenues 369.5 381.1 278.0 Other 6.2 6.3 3.6 Transit and other revenues 375.7 387.4 281.6 Total revenues $ 1,820.6 $ 1,772.1 $ 1,463.9 Rental income was $1,349.3 million in 2023, $1,321.1 million in 2022 and $1,141.1 million in 2021, and is recorded in Billboard revenues on the Consolidated Statement of Operations. The following table summarizes revenues by geography: Years Ended December 31, (in millions) 2023 2022 2021 United States: Billboard $ 1,369.7 $ 1,308.8 $ 1,116.1 Transit and other 352.6 365.1 265.9 Other 6.2 6.3 3.6 Total United States revenues 1,728.5 1,680.2 1,385.6 Canada 92.1 91.9 78.3 Total revenues $ 1,820.6 $ 1,772.1 $ 1,463.9 Our revenues are sensitive to fluctuations in advertising expenditures, general economic conditions and other external events beyond our control. Contract Costs and Balances Variable sales commission costs directly associated with billboard display revenues are considered direct lease acquisition costs in accordance with the lease accounting standard and are capitalized and amortized on a straight-line basis over the related customer lease term (see Note 5. Leases : Lessee to the Consolidated Financial Statements). Amortization of direct lease acquisition costs is presented within SG&A in the accompanying Consolidated Statements of Operations. Variable sales commission costs which are directly associated with transit display and other revenues are included in SG&A on the Consolidated Statement of Operations, and are expensed as incurred since the amortization period of the asset would have been less than one year. Amounts to be collected from customers for revenues recognized in previous periods are included in Receivables, less allowance , on the Consolidated Statement of Financial Position. Amounts collected from customers for revenues to be recognized in future periods are included in Deferred revenues on the Consolidated Statement of Financial Position. We recognized substantially all of the Deferred revenues on the Consolidated Statement of Financial Position as of December 31, 2022, during the three months ended March 31, 2023.

Acquisitions and Dispositions

Acquisitions and Dispositions	12 Months Ended
	Dec. 31, 2023
Business Combinations [Abstract]
Acquisitions and Dispositions	Acquisitions and Dispositions Acquisitions We completed several asset acquisitions for a total purchase price of approximately $33.7 million in 2023, $353.9 million in 2022 and $136.5 million in 2021. In the second quarter of 2022, we completed the acquisition of approximately 950 billboard displays, including 21 digital displays, as well as certain business assets, in Portland, Oregon, and Clark County, Washington, from Pacific Outdoor Advertising, L.L.C., for $185.0 million, subject to closing and post-closing adjustments, using cash on hand. Dispositions Canadian Business On October 22, 2023, the Selling Subsidiaries entered into a Share Purchase Agreement with the Buyer, relating to the sale of the Canadian Business. Pursuant to the Share Purchase Agreement, the Selling Subsidiaries agreed to sell all of its (and its affiliates) equity interests in Outdoor Systems Americas ULC and its subsidiaries, which hold all of the assets of the Canadian Business, to the Buyer, for C$410.0 million in cash, payable on the date of the consummation of the Transaction. The purchase price is subject to (i) adjustments at and following the Closing for working capital, cash, indebtedness, capital expenditures and transaction expenses, and (ii) a holdback to be released at or following the Closing, in whole or in part, if certain third-party contracts are renewed or extended on certain terms. The consummation of the Transaction is expected to occur in the first half of 2024, subject to certain closing conditions, including, among others, (i) the absence of any enacted or pending law, order, judgment or litigation by a governmental authority prohibiting the consummation of the Transaction, and (ii) receipt of antitrust approval in Canada (the “Antitrust Approval”). The obligation of the Buyer to consummate the Transaction is also conditioned on the absence of a material adverse effect on the Canadian Business following the date of the Share Purchase Agreement and the Selling Subsidiaries’ obligation to spend a target percentage of forecasted capital expenditures through the Closing. The obligation of each party to consummate the Transaction is conditioned on each party’s representations and warranties being true and correct and each party having performed in all material respects its obligations under the Share Purchase Agreement. In addition, the Share Purchase Agreement may be terminated under certain circumstances, including (i) by mutual written agreement of the Buyer and the Selling Subsidiaries; (ii) by either the Buyer or the Selling Subsidiaries if the Closing does not occur by July 22, 2024, with extensions by the Buyer or the Selling Subsidiaries under certain conditions until no later than October 22, 2024 (the “Outside Date”); or (iii) by either the Buyer or the Selling Subsidiaries if a failure by either the Buyer or the Seller Subsidiaries is the principal cause of any closing condition not being satisfied. If the Antitrust Approval is not received by the Outside Date and the principal cause of such failure is not a failure of the Selling Subsidiaries or its subsidiaries to perform any of their obligations under the Share Purchase Agreement, the Buyer will pay a termination fee to the Selling Subsidiaries in the amount of C$20.0 million. In connection with the Transaction, the assets of our outdoor advertising business in Canada has been classified as Assets held for sale on the Consolidated Statement of Financial Position. It is required that we measure assets held for sale at the lower of their carrying value (including unrecognized foreign currency translation adjustment losses) or fair value less cost to sell. The components of Assets held for sale and Liabilities held for sale were as follows: (in millions) As of Current assets: Receivables, less allowances $ 26.7 Other current assets 7.9 Current assets held for sale 34.6 Property and equipment, net 39.9 Goodwill 22.9 Intangible assets 53.0 Operating lease assets 85.9 Other assets 12.6 Total assets held for sale $ 248.9 Current liabilities held for sale 24.1 Deferred income tax liabilities, net 15.5 Asset retirement obligation 5.0 Operating lease liabilities 70.4 Total liabilities held for sale $ 115.0 Los Angeles Office and Operations Center In the fourth quarter of 2023, we sold three parcels of land and the related structures in Los Angeles, California, for a total sales price of $15.5 million. This facility previously housed our Los Angeles sales office and operations center. Our Los Angeles sales office has relocated to a new location, and we entered into a leaseback of the operational portion of the facility for a term of five years. We have accounted for the transaction as a sale-leaseback, resulting in a gain of $12.4 million. We have also recorded Operating lease assets and Operating lease liabilities

Stock-Based Compensation

Stock-Based Compensation	12 Months Ended
	Dec. 31, 2023
Share-Based Payment Arrangement [Abstract]
Stock-Based Compensation	Stock-Based Compensation Effective as of June 6, 2023, we amended the OUTFRONT Media Inc. Amended and Restated Omnibus Stock Incentive Plan (the “Stock Plan”) to, among other things, increase the number of shares of our common stock reserved for issuance under our prior plan by 6,475,000 shares, so that the aggregate number of shares reserved for issuance under the Stock Plan is 19,575,000 shares of our common stock. Under the Stock Plan, the board of directors is authorized to grant awards of options to purchase shares of our common stock, stock appreciation rights, restricted and unrestricted stock, restricted share units (“RSUs”), dividend equivalents, performance awards, including performance-based restricted share units (“PRSUs”), and other equity-related awards and cash payments to all of our employees and non-employee directors and employees of our subsidiaries. In addition, consultants and advisors who perform services for us and our subsidiaries may, under certain conditions, receive grants under the Stock Plan. RSUs and PRSUs accrue dividend equivalents in amounts equal to the regular cash dividends paid on our common stock and will be paid in either cash or stock. Accrued dividend equivalents payable in stock shall convert to shares of our common stock on the date of vesting. Compensation expense for RSUs is determined based upon the market price of the shares underlying the awards on the date of grant and expensed over the vesting period, which is generally a three one In the first quarter of 2021, the Company granted one-time equity award grants to our executive officers. The grant values of the one-time RSU awards were equal to 100% of each executive officer’s current base salary, and comprised of 60% PRSUs, which contain a market and service condition, and 40% time-based RSUs, which only contain a service condition. The PRSU market condition will be based on the Company’s total shareholder return (“TSR”) relative to the TSRs of the companies in the iShares Evolved U.S. Media and Entertainment Index as of January 1, 2021, measured over a 2-year performance period, with the number of PRSUs eligible to vest ranging from 0% to 200% of target based on a percentile ranking of the Company’s relative TSR. Subject to the market condition, these one-time equity grants will cliff vest in full on the second anniversary of the award grant date. A Monte Carlo method simulation has been used to estimate the grant date fair value of the PRSUs that have a market condition. The following table summarizes our stock-based compensation expense for 2023, 2022 and 2021. Year Ended December 31, (in millions) 2023 2022 2021 Stock-based compensation expense (RSUs and PRSUs), before income taxes $ 28.4 $ 33.8 $ 28.6 Tax benefit (1.0) (1.6) (1.4) Stock-based compensation expense, net of tax $ 27.4 $ 32.2 $ 27.2 As of December 31, 2023, total unrecognized compensation cost related to non-vested RSUs and PRSUs was $26.6 million, which is expected to be recognized over a weighted average period of 1.6 years. RSUs and PRSUs The following table summarizes the 2023 activity of the RSUs and PRSUs issued to our employees. Activity Weighted Average Per Share Grant Date Fair Market Value Non-vested as of December 31, 2022 2,644,039 $ 24.28 Granted: RSUs 1,109,485 19.03 PRSUs 619,687 20.64 Vested: RSUs (941,942) 24.56 PRSUs (516,609) 25.36 Forfeitures: RSUs (97,480) 21.25 PRSUs (35,344) 21.50 Non-vested as of December 31, 2023 2,781,836 21.10

Retirement Benefits

Retirement Benefits	12 Months Ended
	Dec. 31, 2023
Retirement Benefits [Abstract]
Retirement Benefits	Retirement Benefits We sponsor two defined benefit pension plans covering specific groups of employees in Canada and the U.S. The Outfront Media Canada LP pension plan (the “Plan”) is closed to new employees and as of December 31, 2021, we completed freezing the Plan to any future benefit accruals. Employees under the Plan are now entitled to enhanced defined contribution plan benefits. The benefits for the pension plan in Canada were based primarily on an employee’s years of service and an average of the employee’s highest five years of earnings. Participating employees in the pension plan in Canada were vested after two years of service or immediately, depending on the province of their employment. We funded the pension plan in Canada in accordance with the rules and regulations of the Pension Benefits Act of the Province of Ontario, Canada. Canada pension plan assets consist principally of insurance contracts, equity securities and corporate and government-related fixed income securities, and global infrastructure. The pension plan in the U.S. covers a small number of hourly employees. The investments of the pension plan in the U.S. consist entirely of the plan’s interest in a trust, which invests the assets of this plan. The pension plan in the U.S. is funded in accordance with requirements of the Employee Retirement Income Security Act of 1974, as amended. We use a December 31 measurement date for all pension plans. The following table sets forth the change in benefit obligation for our pension plans. As of December 31, (in millions) 2023 2022 2021 Benefit obligation, beginning of year $ 47.0 $ 65.3 $ 71.3 Service cost — — 0.1 Interest cost 2.1 1.9 1.8 Actuarial gain (0.3) (14.8) (5.2) Settlements paid (20.2) — — Benefits paid (2.0) (2.2) (2.9) Cumulative translation adjustments 0.6 (3.2) 0.2 Benefit obligation, end of year $ 27.2 $ 47.0 $ 65.3 The following table sets forth the change in plan assets for our pension plans. As of December 31, (in millions) 2023 2022 Fair value of plan assets, beginning of year $ 55.5 $ 69.5 Actual return on plan assets 2.9 (8.2) Settlements paid (20.2) — Benefits paid (2.0) (2.2) Cumulative translation adjustments 0.9 (3.6) Fair value of plan assets, end of year $ 37.1 $ 55.5 The unfunded status of pension benefit obligations and the related amounts recognized on the Consolidated Statement of Financial Position were as follows: As of December 31, (in millions) 2023 2022 Funded status, end of year $ 9.9 $ 8.5 Amounts recognized on the Consolidated Statement of Financial Position: Assets held for sale $ 10.4 — Other assets — 8.5 Other liabilities (0.5) — Net amounts recognized 9.9 7.9 The following amounts were recognized in accumulated other comprehensive loss on the Consolidated Statement of Financial Position. As of December 31, (in millions) 2023 2022 Net actuarial gain $ 0.4 $ 0.2 Deferred income taxes (0.1) (0.1) Net amount recognized in accumulated other comprehensive income $ 0.3 $ 0.1 The accumulated benefit obligation for the defined benefit pension plans was $25.1 million as of December 31, 2023, and $45.2 million as of December 31, 2022. The following table presents our benefit obligations and fair value of plan assets. As of December 31, (in millions) 2023 2022 Projected benefit obligation $ 27.2 $ 47.0 Accumulated benefit obligation 25.1 45.2 Fair value of plan assets 37.1 55.5 The following tables present the components of net periodic pension cost and amounts recognized in other comprehensive income (loss). As of December 31, (in millions) 2023 2022 2021 Service cost $ — $ — $ 0.1 Interest cost 2.1 1.9 1.8 Expected return on plan assets (2.6) (2.8) (2.6) Amortization of actuarial losses (a) — — 0.6 Settlement gain (0.5) — — Net periodic pension cost $ (1.0) $ (0.9) $ (0.1) (in millions) Year Ended December 31, 2023 Actuarial gain $ 0.7 Settlement cost (0.5) Recognized in other comprehensive income, net of tax $ 0.2 (a) Reflects amounts reclassified from accumulated other comprehensive income (loss) to net income. Estimated net actuarial losses related to the defined benefit pension plan that will be amortized from accumulated other comprehensive loss into net periodic pension costs in 2024 is immaterial. As of and for the Year Ended December 31, 2023 2022 Weighted average assumptions used to determine benefit obligations: Discount rate 4.8 % 5.0 % Rate of compensation increase 3.3 3.3 Weighted average assumptions used to determine net periodic cost: Discount rate 5.0 3.0 Expected long-term return on plan assets 4.2 5.2 Rate of compensation increase 3.3 3.3 For the pension plan, the discount rate is determined based on the yield on portfolios of high quality bonds, constructed to provide cash flows necessary to meet the expected future benefit payments, as determined for the projected benefit obligation. The expected return on plan assets assumption was derived using the current and expected asset allocation of the pension plan assets and considering historical as well as expected returns on various classes of plan assets. Plan Assets Our plan assets are included in a trust in Canada and a trust in the U.S. The asset allocations of these trusts are based upon an analysis of the timing and amount of projected benefit payments, projected company contributions, the expected returns and risk of the asset classes and the correlation of those returns. As of December 31, 2023, we invested approximately 82% in fixed income instruments and global infrastructure, 17% in equity instruments, and the remainder in cash, cash equivalents. The following tables set forth our pension plan assets measured at fair value on a recurring basis as of December 31, 2023 and 2022. These assets have been categorized according to the three-level fair value hierarchy established by the FASB which prioritizes the inputs used in measuring fair value. Level 1 is based on quoted prices for the asset in active markets. Level 2 is based on inputs that are observable other than quoted market prices in active markets, such as quoted prices for the asset in inactive markets or quoted prices for similar assets. Level 3 is based on unobservable inputs that market participants would use in pricing the asset. As of December 31, 2023 (in millions) Level 1 Level 2 Level 3 Total Cash and cash equivalents $ 0.1 $ — $ — $ 0.1 Fixed income securities: Corporate bonds (a) 0.6 — — 0.6 Equity securities : U.S. equity 0.8 — — 0.8 International equity 0.3 — — 0.3 Total assets in fair value hierarchy $ 1.8 $ — $ — $ 1.8 Common collective funds measured at net asset value 35.3 Total assets $ 37.1 As of December 31, 2022 (in millions) Level 1 Level 2 Level 3 Total Fixed income securities: Corporate bonds (a) $ 0.5 $ — $ — $ 0.5 Equity securities : U.S. equity 0.7 — — 0.7 International equity 0.3 — — 0.3 Insurance contracts — — 22.0 22.0 Total assets in fair value hierarchy $ 1.5 $ — $ 22.0 $ 23.5 Common collective funds measured at net asset value 32.0 Total assets $ 55.5 (a) Securities of diverse industries, substantially all investment grade. Significant changes in Level 3 plan assets are as follows: Year Ended December 31, (in millions) 2023 2022 Insurance contracts: Beginning of year $ 22.0 $ 29.4 Settlement (a) (22.0) — Payments — (1.9) Actuarial loss — (4.6) Interest income — 0.8 Cumulative translation adjustments — (1.7) End of year $ — $ 22.0 (a) In the fourth quarter of 2023, insurance contracts that were part of the assets of the Plan were converted into buy-out annuities with third-party insurance companies. Former employees now collect their benefit from the third-party insurance companies and the Plan no longer has liability associated with those former employees. Our insurance contracts classified as Level 3 are valued based on a discount rate determined by reference to the market interest rates prevailing on high quality debt instruments with cash flows that match the timing and amount of expected benefit payments under the pension plan in Canada, as well as a mortality assumption based upon the current mortality table, CPM2014 generational projected using mortality improvement scale CPM-B. As a result, the fair value of the insurance contract is equal to the defined benefit obligation in respect of the members covered under the insurance contract. Money market investments are carried at amortized cost which approximates fair value due to the short-term maturity of these investments. Investments in equity securities are reported at fair value based on quoted market prices on national security exchanges. The fair value of investments in common collective funds are determined using the Net Asset Value (“NAV”) provided by the administrator of the fund. The NAV is determined by each fund’s trustee based upon the fair value of the underlying assets owned by the fund, less liabilities, divided by the number of outstanding units. The fair value of government related securities and corporate bonds is determined based on quoted market prices on national security exchanges, when available, or using valuation models which incorporate certain other observable inputs including recent trading activity for comparable securities and broker-quoted prices. Future Benefit Payments (in millions) 2024 2025 2026 2027 2028 2029-2033 Estimated future benefit payments for pension plans 0.9 0.8 1.0 1.1 1.4 8.1 We do not expect to contribute to our defined benefit pension plans in 2024. Multi-Employer Pension and Postretirement Benefit Plans We contribute to multi-employer plans that provide pension and other postretirement benefits to certain employees under collective bargaining agreements. Contributions to these plans were $3.3 million in 2023, $3.5 million in 2022 and $3.0 million in 2021. Based on our contributions to each individual multi-employer plan relative to the total contributions of all participating employers in such plan, no multi-employer plan was deemed to be individually significant to us. Defined Contribution Plans

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2023
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes We are organized in conformity with the requirements for qualification and taxation as a REIT under the Internal Revenue Code of 1986, as amended (the “Code”) and, accordingly, we have not provided for U.S. federal income tax on our REIT taxable income that we distribute to our stockholders. We have elected to treat our subsidiaries that participate in certain non-REIT qualifying activities as taxable REIT subsidiaries (“TRSs”). As such, we have provided for their federal, state and foreign income taxes. Cash paid for income taxes was $6.7 million in 2023, $3.3 million in 2022 and $1.7 million in 2021. The U.S. and foreign components of Income (loss) before benefit (provision) for income taxes and equity in earnings of investee companies were as follows: Year Ended December 31, (in millions) 2023 2022 2021 United States $ (436.4) $ 148.0 $ 32.6 Foreign 11.8 7.7 (1.0) Income (loss) before benefit (provision) for income taxes and equity in earnings of investee companies $ (424.6) $ 155.7 $ 31.6 The following table reconciles Income (loss) before benefit (provision) for income taxes and equity in earnings of investee companies to REIT taxable income. Year Ended December 31, (in millions) 2023 2022 2021 Income (loss) before benefit (provision) for income taxes and equity in earnings of investee companies $ (424.6) $ 155.7 $ 31.6 Net loss of TRSs 151.4 15.2 21.9 Income (loss) from REIT operations (273.2) 170.9 53.5 Book/tax differences Depreciation 27.9 33.7 (2.0) Amortization (13.6) (13.3) (6.1) Dividend from foreign subsidiary 2.1 2.1 1.4 Stock-based compensation (0.9) 3.8 5.0 Deferred gain for tax (6.8) (1.0) (3.0) Investments in joint ventures 5.5 9.9 5.0 Executive compensation 11.2 9.4 6.3 Lease expense 8.4 4.3 5.7 Provision for doubtful accounts 1.5 3.3 (7.5) Interest — (11.2) 13.8 Impairment charges (a) 388.2 — — Other 13.6 1.5 4.3 REIT taxable income (estimated) $ 163.9 $ 213.4 $ 76.4 (a) Impairment charges related to our U.S. transit business (see Note 4. Long-Lived Assets) . The components of the Benefit (provision) for income taxes are as follows: Year Ended December 31, (in millions) 2023 2022 2021 Current: Federal $ — $ (0.1) $ 0.5 State and local (1.0) (1.0) (0.7) Foreign (3.1) (3.6) (1.1) (4.1) (4.7) (1.3) Deferred: Federal — (5.0) 3.2 State and local — (1.7) 1.1 Foreign 0.1 2.0 0.4 0.1 (4.7) 4.7 Benefit (provision) for income taxes $ (4.0) $ (9.4) $ 3.4 The effective income tax rate was 0.9% in 2023, 6.0% in 2022 and 10.8% in 2021. The difference between income taxes expected at the U.S. federal statutory income tax rate of 21% and the Benefit (provision) for income taxes is summarized as follows: Year Ended December 31, (in millions) 2023 2022 2021 Benefit (provision) for income taxes on income at U.S. statutory rate $ 89.2 $ (32.7) $ (6.6) REIT dividends paid deduction 24.2 35.9 11.3 State and local taxes, net of federal tax benefit (1.0) (2.9) 0.1 Effect of foreign operations (1.0) (0.5) (0.9) Impairment charges (a) (110.6) — — Other, net (4.8) (9.2) (0.5) Benefit (provision) for income taxes $ (4.0) $ (9.4) $ 3.4 (a) Primarily a permanent book/tax difference for impairment charges related to our U.S. transit business (see Note 4. Long-Lived Assets) . The following table is a summary of the components of deferred income tax assets and liabilities. As of December 31, (in millions) 2023 2022 Deferred income tax assets: Provision for expenses and losses $ 6.6 $ 3.5 Postretirement and other employee benefits 2.2 2.5 Tax credit and loss carryforwards 5.8 5.9 Property, equipment and intangible assets 2.0 0.2 Total deferred income tax assets 16.6 12.1 Valuation allowance (16.6) (11.9) Deferred income tax assets, net — 0.2 Deferred income tax liabilities: Property, equipment and intangible assets (12.8) (13.0) Postretirement and other employee benefits (2.5) (2.2) Other (0.2) (0.2) Total deferred income tax liabilities (15.5) (15.4) Deferred income tax liabilities, net $ (15.5) $ (15.2) As of December 31, 2023, we had federal, state and local net operating loss carryforwards of $22.6 million. These losses can be carried forward indefinitely for federal tax purposes but are subject to certain state and local utilization limitations. Our undistributed earnings of foreign subsidiaries not includable in our federal income tax returns that could be subject to additional income taxes if remitted was approximately $4.4 million as of December 31, 2023, and $2.3 million as of December 31, 2022. No provision was recorded for taxes that could result from the remittance of such undistributed earnings since we intend to declare dividends to our shareholders in an amount sufficient to offset such distributions and intend to reinvest the remainder outside of the U.S. indefinitely. The determination of the unrecognized U.S. federal deferred income tax liability for undistributed earnings is not practicable. The reserve for uncertain tax positions of $0.3 million as of December 31, 2023, includes $0.2 million which would affect our effective income tax rate if recognized in future years. We recognize interest and penalty charges related to the reserve for uncertain tax positions as part of income tax expense. These charges were not material for any of the periods presented.

Earnings Per Share ("EPS")

Earnings Per Share ("EPS")	12 Months Ended
	Dec. 31, 2023
Earnings Per Share [Abstract]
Earnings Per Share (“EPS”)	Earnings Per Share (“EPS”) Year Ended December 31, (in millions) 2023 2022 2021 Net income (loss) available for common stockholders $ (430.4) $ 147.9 $ 35.6 Less: Distributions to holders of Series A Preferred Stock 8.8 12.0 28.0 Less: Distributions to holders of Class A equity interests of a subsidiary — 0.1 0.1 Net income (loss) available for common stockholders, basic and diluted $ (439.2) $ 135.8 $ 7.5 Weighted average shares for basic EPS 164.9 161.1 145.4 Dilutive potential shares from grants of RSUs, PRSUs and stock options (a) — 0.7 0.7 Weighted average shares for diluted EPS (a)(b)(c) 164.9 161.8 146.1 (a) The potential impact of an aggregate 1.8 million granted RSUs, PRSUs and stock options for 2023, 0.7 million granted RSUs, PRSUs and stock options for 2022 and 0.1 million granted RSUs, PRSUs and stock options for 2021 was antidilutive. (b) The potential impact of 7.8 million shares of our common stock issuable upon conversion of our Series A Preferred Stock in 2023, 10.6 million shares of our common stock issuable upon conversion of our Series A Preferred Stock in 2022 and 25.0 million shares of our common stock issuable upon conversion of our Series A Preferred Stock in 2021 was antidilutive. (c)

Commitment and Contingencies

Commitment and Contingencies	12 Months Ended
	Dec. 31, 2023
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Off-Balance Sheet Arrangements Our off-balance sheet commitments primarily consist of guaranteed minimum annual payments. These arrangements result from our normal course of business and represent obligations that are payable over several years. Contractual Obligations We have agreements with municipalities and transit operators which entitle us to operate advertising displays within their transit systems, including on the interior and exterior of rail and subway cars and buses, as well as on benches, transit shelters, street kiosks, and transit platforms. Under most of these franchise agreements, the franchisor is entitled to receive the greater of a percentage of the relevant revenues, net of agency fees, or a specified guaranteed minimum annual payment. As of December 31, 2023, guaranteed minimum annual payments are as follows: (in millions) Guaranteed 2024 $ 199.3 2025 205.9 2026 205.8 2027 193.6 2028 196.3 2029 and thereafter 367.9 Total minimum payments (a) $ 1,368.8 (a) Excludes guaranteed minimum annual payments of $11.9 million in connection with the Transaction. (See Note 12. Acquisitions and Dispositions : Dispositions : Canadian Business .) Under the current MTA agreement, which was amended in June 2020 and July 2021 and is subject to modification as agreed upon by us and the MTA (as amended, the “MTA Agreement”): • Deployments . We must deploy, over a number of years, (i) 5,433 digital advertising screens on subway and train platforms and entrances, (ii) 15,896 smaller-format digital advertising screens on rolling stock, and (iii) 9,283 MTA communications displays. We are also obligated to deploy certain additional digital advertising screens and MTA communications displays in subway and train stations and rolling stock that the MTA may build or acquire in the future (collectively, the “New Inventory”). • Recoupment of Equipment Deployment Costs. We may retain incremental revenues that exceed an annual base revenue amount for the cost of deploying advertising and communications displays throughout the transit system. As presented in the table below, recoupable MTA equipment deployment costs are recorded as Prepaid MTA equipment deployment costs and Intangible assets on our Consolidated Statement of Financial Position, and as these costs are recouped from incremental revenues that the MTA would otherwise be entitled to receive, Prepaid MTA equipment deployment costs will be reduced. If incremental revenues generated over the term of the agreement are not sufficient to cover all or a portion of the equipment deployment costs, the costs will not be recouped, which could have an adverse effect on our business, financial condition and results of operations, including impairment charges (see Note 4. Long-Lived Assets ). If we do not recoup all costs of deploying advertising and communications screens with respect to the New Inventory by the end of the term of the MTA Agreement, the MTA will be obligated to reimburse us for these costs. Deployment costs in an amount not to exceed $50.7 million, which are deemed authorized before December 31, 2020, will be paid directly by the MTA. For any deployment costs deemed authorized after December 31, 2020, the MTA and the Company will no longer be obligated to directly pay 70% and 30% of the costs, respectively, and these costs will be subject to recoupment in accordance with the MTA Agreement. We did not recoup any equipment deployment costs in 2023 and we do not expect to recoup any equipment deployment costs in 2024. • Payments . We must pay to the MTA the greater of a percentage of revenues or a guaranteed minimum annual payment. Our payment obligations with respect to guaranteed minimum annual payment amounts owed to the MTA resumed on January 1, 2021, in accordance with the terms of the MTA Agreement, and any guaranteed minimum annual payment amounts that would have been paid for the period from April 1, 2020 through December 31, 2020 (less any revenue share amounts actually paid during this period using an increased revenue share percentage of 65%) will instead be added in equal increments to the guaranteed minimum annual payment amounts owed for the period from January 1, 2022, through December 31, 2026. The MTA Agreement also provides that if prior to April 1, 2028 the balance of unrecovered costs of deploying advertising and communications screens throughout the transit system is equal to or less than zero, then in any year following the year in which such recoupment occurs (the “Recoupment Year”), the MTA is entitled to receive an additional payment equal to 2.5% of the annual base revenue amount for such year calculated in accordance with the MTA Agreement, provided that gross revenues in such year (i) were at least equal to the gross revenues generated in the Recoupment Year, and (ii) did not decline by more than 5% from the prior year. • Term . In July 2021, we extended the initial 10-year term of the MTA Agreement to a 13-year base term (the “Amended Term”). We have the option to extend the Amended Term for an additional five During 2023, we had no recoupment from incremental revenues. As of December 31, 2023, 19,697 digital displays had been installed, composed of 5,121 digital advertising screens on subway and train platforms and entrances, 9,674 smaller-format digital advertising screens on rolling stock and 4,902 MTA communications displays. In the fourth quarter of 2023, 911 installations occurred, for a total of 5,544 installations occurring in 2023. (in millions) Beginning Balance Deployment Costs Incurred Recoupment/MTA Funding Amortization/Impairment Reclassification Ending Balance Year Ended December 31, 2023: Prepaid MTA equipment deployment costs $ 363.2 $ 21.8 $ — $ — $ (385.0) $ — Other current assets 1.6 (0.4) (0.1) — — 1.1 Intangible assets (franchise agreements) 62.0 22.3 — (469.3) 385.0 — Total $ 426.8 $ 43.7 $ (0.1) $ (469.3) $ — $ 1.1 Year Ended December 31, 2022: Prepaid MTA equipment deployment costs $ 279.8 $ 83.4 $ — $ — $ — $ 363.2 Other current assets 5.2 0.1 (3.7) — — 1.6 Intangible assets (franchise agreements) 63.0 5.4 — (6.4) — 62.0 Total $ 348.0 $ 88.9 $ (3.7) $ (6.4) $ — $ 426.8 Letters of Credit We have indemnification obligations with respect to letters of credit and surety bonds primarily used as security against non-performance in the normal course of business. As of December 31, 2023, the outstanding letters of credit were approximately $82.1 million and outstanding surety bonds were approximately $172.8 million, and were not recorded on the Consolidated Statements of Financial Position. Legal Matters On an ongoing basis, we are engaged in lawsuits and governmental proceedings and respond to various investigations, inquiries, notices and claims from national, state and local governmental and other authorities (collectively, “litigation”). Litigation is inherently uncertain and always difficult to predict. Although it is not possible to predict with certainty the eventual outcome of any litigation, in our opinion, none of our current litigation is expected to have a material adverse effect on our results of operations, financial position or cash flows.

Segment Information

Segment Information	12 Months Ended
	Dec. 31, 2023
Segment Reporting [Abstract]
Segment Information	Segment Information We currently manage our operations through two operating segments—U.S. Billboard and Transit, which is included in our U.S. Media reportable segment, and International. International does not meet the criteria to be a reportable segment and accordingly, is included in Other . The following tables set forth our financial performance by segment. Year Ended December 31, (in millions) 2023 2022 2021 Revenues: U.S. Media $ 1,722.3 $ 1,673.9 $ 1,382.0 Other 98.3 98.2 81.9 Total revenues $ 1,820.6 $ 1,772.1 $ 1,463.9 We present Operating income (loss) before Depreciation , Amortization , Net (gain) loss on dispositions, Stock-based compensation and Impairment charges (“Adjusted OIBDA”) as the primary measure of profit and loss for our operating segments. Year Ended December 31, (in millions) 2023 2022 2021 Net income (loss) before allocation to non-controlling interests $ (429.7) $ 149.1 $ 36.4 (Benefit) provision for income taxes 4.0 9.4 (3.4) Equity in earnings of investee companies, net of tax 1.1 (2.8) (1.4) Interest expense, net 158.4 131.8 130.4 Loss on extinguishment of debt 8.1 — 6.3 Other (income) loss, net (0.3) 0.2 — Operating income (loss) (258.4) 287.7 168.3 Net (gain) loss on dispositions (14.2) 0.2 (4.5) Impairment charges 534.7 — 2.5 Depreciation and amortization 160.5 150.7 145.4 Stock-based compensation 28.4 33.8 28.6 Total Adjusted OIBDA $ 451.0 $ 472.4 $ 340.3 Adjusted OIBDA: U.S. Media $ 479.4 $ 501.2 $ 382.9 Other 23.1 20.6 10.4 Corporate (51.5) (49.4) (53.0) Total Adjusted OIBDA $ 451.0 $ 472.4 $ 340.3 Year Ended December 31, (in millions) 2023 2022 2021 Operating income (loss): U.S. Media $ (189.9) $ 363.0 $ 248.5 Other 11.4 7.9 1.4 Corporate (79.9) (83.2) (81.6) Total operating income (loss) $ (258.4) $ 287.7 $ 168.3 Net (gain) loss on dispositions: U.S. Media $ (14.2) $ 0.2 $ (1.5) Other — — (3.0) Total (gain) loss on dispositions $ (14.2) $ 0.2 $ (4.5) Impairment charges (a)(b) : U.S. Media $ 534.7 $ — $ 2.5 Total impairment charges $ 534.7 $ — $ 2.5 Depreciation and amortization: U.S. Media $ 148.8 $ 138.0 $ 133.4 Other 11.7 12.7 12.0 Total depreciation and amortization $ 160.5 $ 150.7 $ 145.4 Capital expenditures: U.S. Media $ 76.0 $ 85.4 $ 69.3 Other 10.8 4.4 4.5 Total capital expenditures $ 86.8 $ 89.8 $ 73.8 (a) In 2023, Impairment charges related to a decline in the long-term outlook of our U.S. Transit and Other reporting unit (see Note 4. Long-Lived Assets) and an other-than-temporary decline in fair value of a cost-method investment. (b) In 2021, Impairment charges related to an other-than-temporary decline in fair value of a cost-method investment. As of December 31, (in millions) 2023 2022 2021 Assets: U.S. Media $ 5,297.2 $ 5,732.1 $ 5,280.7 Other (a) 259.7 240.4 248.1 Corporate 26.0 17.5 395.9 Total assets $ 5,582.9 $ 5,990.0 $ 5,924.7 (a) In 2023, includes amounts reclassified as Assets held for sale on the Consolidated Statement of Financial Position. (See Note 12. Acquisitions and Dispositions : Dispositions : Canadian Business .) Year Ended December 31, (in millions) 2023 2022 2021 Revenues (a) : United States $ 1,728.5 $ 1,680.2 $ 1,385.6 Canada 92.1 91.9 78.3 Total revenues $ 1,820.6 $ 1,772.1 $ 1,463.9 (a) Revenues classifications are based on the geography of the advertising. As of December 31, (in millions) 2023 2022 2021 Long-lived assets (a) : United States $ 4,962.6 $ 5,391.0 4,937.0 Canada (b) 214.3 195.8 192.1 Total long-lived assets $ 5,176.9 $ 5,586.8 $ 5,129.1 (a) Reflects total assets less current assets, investments and non-current deferred tax assets. (b) In 2023, includes amounts reclassified as Assets held for sale on the Consolidated Statement of Financial Position. (See Note 12. Acquisitions and Dispositions : Dispositions : Canadian Business .)

II - Valuation and Qualifying A

II - Valuation and Qualifying Accounts	12 Months Ended
	Dec. 31, 2023
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]
Schedule of Valuation and Qualifying Accounts	Col. A Col. B Col. C Col. D Col. E Description Balance at Balance Charged to Charged to Other Accounts (a) Deductions Balance at Allowance for doubtful accounts: Year ended December 31, 2023 $ 20.2 $ — $ 5.8 $ (0.1) $ 8.7 $ 17.2 Year ended December 31, 2022 18.5 — 4.9 2.0 5.2 20.2 Year ended December 31, 2021 26.3 $ — (4.0) 0.5 4.3 18.5 Valuation allowance on deferred tax assets: Year ended December 31, 2023 $ 11.9 $ — $ 4.7 $ — $ — $ 16.6 Year ended December 31, 2022 0.4 — 11.9 — 0.4 11.9 Year ended December 31, 2021 0.4 — — — — 0.4 (a) Reflects change in allowance related to foreign currency translation adjustments and amounts reclassified to Assets held for sale on the Consolidated Statements of Financial Position.

III - Schedule of Real Estate a

III - Schedule of Real Estate and Accumulated Depreciation	12 Months Ended
	Dec. 31, 2023
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation Disclosure [Abstract]
SEC Schedule III, Real Estate and Accumulated Depreciation	Initial Cost Cost Gross Carrying Amount at December 31, 2023 (3) Description (1) Encumbrances Land Structures and Improvements Land Structures and Improvements Total Accumulated Construction Acquisition Useful Structures added prior to January 1, 2014 United States - 37,660 displays — (2) (2) (2) $ 79.8 $ 1,528.0 $ 1,607.8 $ (1,298.8) Various Various 3 to 20 years Canada - 4,168 displays — (2) (2) (2) 1.5 285.5 287.0 (285.2) Various Various 3 to 20 years $ 81.3 $ 1,813.5 $ 1,894.8 $ (1,584.0) Structures added subsequent to January 1, 2014 United States - 3,131 displays $ 30.3 $ 243.5 $ (16.2) $ 30.3 $ 227.3 $ 257.6 $ (8.4) Various Various 3 to 20 years Canada - 441 displays — 33.8 0.3 — 34.1 34.1 (2.0) Various Various 3 to 20 years $ 30.3 $ 277.3 $ (15.9) $ 30.3 $ 261.4 $ 291.7 $ (10.4) Total United States - 40,791 displays $ 110.1 $ 1,755.3 $ 1,865.4 $ (1,307.2) Various Various 3 to 20 years Canada - 4,609 displays 1.5 319.6 321.1 (287.2) Various Various 3 to 20 years $ 111.6 $ 2,074.9 $ 2,186.5 $ (1,594.4) ______________________ (1) No single asset exceeded 5% of the total gross carrying amount as of December 31, 2023. (2) This information is omitted as it would be impracticable to compile on a site-by-site basis. (3) Includes sites under construction. The following table summarizes the activity for the Company’s real estate assets, which consist of advertising displays, and the related accumulated depreciation. 2023 2022 2021 Gross real estate assets: Balance at the beginning of the year $ 2,119.0 $ 2,040.3 $ 1,993.0 New Investments 19.6 33.2 28.3 Redevelopments 37.2 50.9 15.3 Recurring capital expenditures 8.8 15.6 12.4 Purchase price accounting adjustments — — 0.7 Land acquisitions 0.1 9.7 5.0 Additions for construction of / improvements to structures 65.7 109.4 61.7 Assets sold or written-off (6.5) (9.0) (14.6) Foreign exchange 8.3 (21.7) 0.2 Balance at the end of the year $ 2,186.5 $ 2,119.0 $ 2,040.3 Accumulated depreciation: Balance at the beginning of the year $ 1,519.5 $ 1,490.9 $ 1,448.2 Depreciation 60.2 56.1 56.0 Impairment 12.5 — — Assets sold or written-off (5.4) (7.5) (13.5) Foreign exchange 7.6 (20.0) 0.2 Balance at the end of the year $ 1,594.4 $ 1,519.5 $ 1,490.9

Pay vs Performance Disclosure

Pay vs Performance Disclosure - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Pay vs Performance Disclosure
Net income (loss) attributable to OUTFRONT Media Inc.	$ (430.4)	$ 147.9	$ 35.6

Insider Trading Arrangements

Insider Trading Arrangements	3 Months Ended
	Dec. 31, 2023
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false

Insider Trading Policies and Pr

Insider Trading Policies and Procedures	12 Months Ended
	Dec. 31, 2023
Insider Trading Policies and Procedures [Line Items]
Insider Trading Policies and Procedures Adopted	true

Description of Business and B_2

Description of Business and Basis of Presentation Accounting (Policies)	12 Months Ended
	Dec. 31, 2023
Accounting Policies [Abstract]
Use of Estimates	The preparation of our financial statements in conformity with accounting principles generally accepted in the United States of America (“GAAP”) requires management to make estimates, judgments and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amount of revenues and expenses during the reporting period. We base our estimates on historical experience and on various other assumptions that are believed to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Actual results may differ materially from these estimates under different assumptions or conditions.

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2023
Accounting Policies [Abstract]
Principles of Consolidation	Principles of Consolidation—
Cash and Cash Equivalents and Restricted Cash	Cash and Cash Equivalents
Receivables	Receivables
New York Metropolitan Authority (the "MTA") Agreement	New York Metropolitan Transportation Authority (the “MTA”) Agreement— Under our agreement with the MTA, as title of the various digital displays we are obligated to deploy transfers to the MTA on installation, the cost of deploying these screens throughout the transit system does not represent our property and equipment. The portion of deployment costs expected to be reimbursed from transit franchise fees that would otherwise be payable to the MTA are recorded as Prepaid MTA equipment deployment costs on the Consolidated Statement of Financial Position and charged to operating expenses as advertising revenue is generated. The short-term portion of Prepaid MTA equipment deployment costs represents the costs that we expect to recover from the MTA in the next twelve months. The portion of deployment costs expected to be reimbursed from advertising revenues that would otherwise be retained by us under the contract are recorded as Intangible assets
Property and Equipment	Property and Equipment —Property and equipment is stated at cost. Depreciation is computed using the straight-line method over the estimated useful lives as follows: Buildings and improvements 15 to 35 years Advertising structures 3 to 20 years Furniture, equipment and other 3 to 10 years For advertising structures associated with a contract, the assets are depreciated over the shorter of the contract term or useful life. Maintenance and repair costs to maintain property and equipment in their original operating condition are charged to expense as incurred. Improvements or additions that extend the useful life of the assets are capitalized. When an asset is retired or otherwise disposed of, the associated cost and accumulated depreciation are removed and the resulting gain or loss is recognized.
Business Combinations and Asset Acquisitions	Business Combinations and Asset Acquisitions —We routinely acquire out-of-home advertising assets, including advertising structures, permits and leasehold agreements. We determine the accounting for these transactions by first evaluating whether the assets acquired and liabilities assumed, if any, constitute a business using the guidelines in the Financial Accounting Standards Board (“FASB”) guidance for business combinations. If the assets acquired and liabilities assumed constitute a business, the purchase price is allocated to the tangible and identifiable intangible net assets acquired based on their estimated fair values with the excess of the purchase price over those estimated fair values recorded as goodwill. If the acquired assets do not constitute a business, we allocate the purchase price to the individual tangible and intangible assets acquired based on their relative fair values.
Impairment of Long-Lived Assets	Impairment of Long-Lived Assets— Long-lived assets held for sale are required to be measured at the lower of their carrying value (including unrecognized foreign currency translation adjustment losses) or fair value less cost to sell. Long-lived assets are assessed for impairment whenever there is an indication that the carrying amount of the asset may not be recoverable. Recoverability of these assets is determined by comparing the forecasted undiscounted cash flows generated by those assets to the respective asset’s carrying value. The amount of impairment loss, if any, will be measured by the difference between the net carrying value and the estimated fair value of the asset. We compute the estimated fair value of each asset group for which we perform a quantitative assessment using an income approach. Under the income approach, the fair value is determined using a discounted cash flow model. Our cash flow models requires us to use significant estimates and assumptions such as projected revenue growth rates, billboard lease and transit franchise expenses, other operating and selling, general and administrative expenses, capital expenditures, and discount rates. The projected revenue growth rates, billboard lease and transit franchise expenses, other operating and selling, general and administrative expenses and capital expenditures are based on our internal forecasts of future performance, as well as historical trends. The discount rates represent the weighted average cost of capital derived using known and estimated market metrics. There can be no assurance that these estimates and assumptions will prove to be an accurate prediction of the future, and a downward revision of these estimates and/or assumptions would decrease the fair values of our asset groups, which could result in additional impairment charges in the future.
Goodwill	Goodwill—
Intangible assets	Intangible Assets —Intangible assets, which primarily consist of acquired permits and leasehold agreements and franchise agreements, are amortized by the straight-line method over their estimated useful lives, which range from five
Leases - Lessee	Leases (Lessees) —We generally lease the underlying sites upon which the physical billboard structures on which we display advertising copy for our customers are located. We also have leases for office and warehouse spaces. All leases are recorded on the Consolidated Statement of Financial Position and we recognize lease expense on a straight-line basis over the lease term. We do not separate lease and non-lease components from contracts. Many of our leases include one or more options to renew, with renewal terms that can extend the lease term for varying lengths of time. These renewal provisions typically require consent of both parties. Many of our leases also contain termination provisions at our option, based on a variety of factors, including termination due to changing economic conditions of the related billboard location. Certain of our lease agreements include rental payments based on a percentage of revenue over contractual levels and others include rental payments adjusted periodically for inflation. Our lease agreements do not contain any material residual value guarantees or material restrictive covenants. When available, we use the rate implicit in the lease to discount lease payments to present value; however, most of our leases do not provide a readily determinable implicit rate. Therefore, we must estimate our incremental borrowing rate to discount the lease payments based on information available at lease commencement or amendment. We rent or sublease certain real estate to third parties.
Leases - Lessor	Leases (Lessors) —Our agreements with customers to advertise on our billboards are considered operating leases. Substantially all of our advertising structures (see Note 3. Property and Equipment, Net ) are utilized to lease advertising space to customers, for which the contracts are accounted for as rental income. Billboard display revenues are recognized as rental income on a straight-line basis over the customer lease term. We exclude from rental income all taxes assessed by a governmental authority that we collect from customers. These operating leases are short-term in duration, typically a term of 4 weeks to one year and do not include any variable lease provisions or options to extend the lease. Certain contracts may include provisions for the early termination of the lease after an agreed upon notice period. We account for non-lease installation services and the lease associated with providing advertising space on our billboards as a combined component under the lease standard.
Hedging Activities	Hedging Activities
Revenue Recognition	Revenue Recognition —We derive Revenues from the following sources: (i) billboard displays, (ii) transit displays, and (iii) other. Billboard display revenues are derived from providing advertising space to customers on our physical billboards or other outdoor structures. We generally (i) own the physical structures on which we display advertising copy for our customers, (ii) hold the legal permits to display advertising thereon, and (iii) lease the underlying sites. Billboard display revenues and installation services are recognized on a combined basis under the lease accounting standard as rental income on a straight-line basis over the customer lease term. Transit display revenues are derived from agreements with municipalities and transit operators, which entitle us to operate advertising displays within their transit systems, including on the interior and exterior of rail and subway cars and buses, as well as on benches, transit shelters, street kiosks and transit platforms. Transit display contracts typically require the installation and delivery of multiple advertising displays, for which locations are not specifically identified. Installation services are highly interdependent with the provision of advertising space, and therefore the installation and display of advertising is recognized as a single performance obligation. Transit display revenues are recognized based on the level of units displayed in proportion to the total units to be displayed over the contract period. Other revenues are derived primarily from providing print production services for advertisements to be displayed on our billboards or other outdoor sites, or on displays that we operate within transit systems. Print production services are not interrelated with the provision of advertising space and are considered a distinct performance obligation. Production revenue is recognized over the production period, which is typically very short in duration. Our billboard display and transit display contracts with customers range from four weeks to one year and billing commences at the beginning of the contract term, with payment generally due within 30 days of billing. For the majority of our contracts, transaction prices are explicitly stated. Any contracts with transaction prices that contain multiple performance obligations are allocated primarily based on a relative standalone selling price basis. Deferred revenues primarily consist of revenues collected in advance of being earned. For all revenue sources, we evaluate whether we should be considered the principal (i.e., report revenues on a gross basis) or an agent (i.e., report revenues on a net basis). We are considered the principal in our arrangements and report revenues on a gross basis, wherein the amounts billed to customers are recorded as revenues, and amounts paid to municipalities, transit operators and suppliers are recorded as expenses. We are considered the principal because we control the advertising space before and after the contract term, are primarily responsible to our customers, have discretion in pricing and typically have inventory risk. For space provided to advertisers through the use of an advertising agency whose commission is calculated based on a stated percentage of gross advertising spending, our Revenues are reported net of agency commissions.
Concentration of Credit Risk	Concentration of Credit Risk— In the opinion of management, credit risk is limited due to the large number of customers and advertising agencies utilized. We perform credit evaluations on our customers and agencies and believe that the allowances for doubtful accounts are adequate.
Billboard Property Lease and Transit Franchise Expenses	Billboard Property Lease and Transit Franchise Expenses —Our billboards are primarily located on leased real property. Lease agreements are negotiated for varying terms ranging from one month to multiple years, most of which provide renewal options. Lease costs consist of a fixed monthly amount and certain lease agreements also include contingent rent based on the revenues we generate from the leased site. Property leases are generally paid in advance for periods ranging from one The fixed component of lease costs is expensed evenly over the non-cancellable contract term, and contingent rent is expensed as incurred when the related revenues are recognized. Our transit franchise agreements have fixed terms, are typically terminable for convenience at the option of the governmental entity (other than with respect to the MTA), and generally provide for payments to the governmental entity based on a percentage of revenues generated under the contract and/or a guaranteed minimum annual payment. The costs which are determined based on a percentage of revenues are expensed as incurred when the related revenues are recognized, and the guaranteed minimum annual payment is expensed over the contract term.
Direct Lease Acquisition Costs	Direct Lease Acquisition Costs— Variable commissions directly associated with billboard revenues are amortized on a straight-line basis over the related customer lease term, which generally ranges from four weeks to one year. Amortization of direct lease acquisition costs are presented within Selling General and Administrative expenses (“ SG&A
Foreign Currency Translation and Transactions	Foreign Currency Translation and Transactions— The assets and liabilities of foreign subsidiaries are translated at exchange rates in effect at the balance sheet date, while results of operations are translated at average exchange rates for the respective periods. Any gain or loss on translation is included within other comprehensive income (loss) and Accumulated other comprehensive loss on our Consolidated Statement of Financial Position. Foreign currency transaction gains and losses are included in Other income (loss), net, on the Consolidated Statements of Operations.
Income Taxes	Income Taxes —As a REIT, We generally will not be subject to U.S. federal income tax on our REIT taxable income that we distribute to our stockholders. We have elected to treat our subsidiaries that participate in certain non-REIT qualifying activities, and certain of our foreign subsidiaries, as taxable REIT subsidiaries (“TRSs”). As such, the taxable income of our TRSs will be subject to federal, state and foreign income taxation at regular corporate rates. Income taxes are accounted for under the asset and liability method of accounting. Deferred income tax assets and liabilities are recognized for the estimated future tax effects of temporary differences between the financial statement carrying amounts and their respective tax basis. Deferred tax assets are reduced by a valuation allowance if it is more likely than not that some or all of the deferred tax assets will not be realized. We have applied the FASB’s guidance relating to uncertainty in income taxes recognized. Under this guidance we may recognize the tax benefit from an uncertain tax position only if it is more likely than not that the tax position will be sustained on examination by taxing authorities, based on the technical merits of the position. The tax benefits recognized from such a position are measured based on the largest benefit that has a greater than fifty percent likelihood of being realized upon ultimate settlement. The guidance on accounting for uncertainty in income taxes also provides guidance on de-recognition, classification, interest and penalties on income taxes, and accounting in interim periods.
Asset Retirement Obligation	Asset Retirement Obligation —An asset retirement obligation is established for the estimated future obligation, upon termination or non-renewal of a lease, associated with removing structures from the leased property and, when required by the contract, the cost to return the leased property to its original condition. These obligations are recorded at their present value in the period in which the liability is incurred and are capitalized as part of the related assets’ carrying value. Accretion of the liability is recognized in selling, general and administrative expenses and the capitalized cost is depreciated over the expected useful life of the related asset.
Stock-based Compensation	Stock-based Compensation —We measure the cost of employee services received in exchange for an award of equity instruments based on the grant-date fair value of the award. The cost is recognized over the vesting period during which an employee is required to provide service in exchange for the award.
Adoption of New Accounting Standards	Adoption of New Accounting Standards In the first quarter of 2023, we adopted the FASB’s guidance on the recognition and measurement of contract assets and contract liabilities acquired in a business combination. At the acquisition date, the acquirer should account for the related revenue contracts as if it had originated the contracts. The guidance also provides certain practical expedients for acquirers when recognizing and measuring acquired contract assets and contract liabilities from revenue contracts in a business combination. We will implement this guidance when accounting for business combinations in the future. In March 2020 and December 2022, the FASB issued guidance providing optional expedients and exceptions for accounting for contracts, hedging relationships and other transactions that reference to the London Interbank Offered Rate or another reference rate expected to be discontinued because of reference rate reform, if certain criteria are met. The guidance is effective for all entities as of March 12, 2020, through December 31, 2024. This guidance did not have a significant impact on our accounting for our existing debt.

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2023
Accounting Policies [Abstract]
Property and Equipment, Net	Depreciation is computed using the straight-line method over the estimated useful lives as follows: Buildings and improvements 15 to 35 years Advertising structures 3 to 20 years Furniture, equipment and other 3 to 10 years The table below presents the balances of major classes of assets and accumulated depreciation. As of December 31, (in millions) 2023 (a) 2022 Land $ 110.1 $ 112.2 Buildings and improvements 42.7 56.5 Advertising structures 1,716.2 2,006.8 Furniture, equipment and other 173.9 183.4 Construction in progress 39.5 38.5 2,082.4 2,397.4 Less accumulated depreciation 1,424.6 1,697.6 Property and equipment, net $ 657.8 $ 699.8 (a) In 2023, in connection with the Transaction, Property and equipment were reclassified as Assets held for sale on the Consolidated Statement of Financial Position. (See Note 12. Acquisitions and Dispositions : Dispositions : Canadian Business .)

Property and Equipment, Net (Ta

Property and Equipment, Net (Tables)	12 Months Ended
	Dec. 31, 2023
Property, Plant and Equipment [Abstract]
Property and Equipment, Net	Depreciation is computed using the straight-line method over the estimated useful lives as follows: Buildings and improvements 15 to 35 years Advertising structures 3 to 20 years Furniture, equipment and other 3 to 10 years The table below presents the balances of major classes of assets and accumulated depreciation. As of December 31, (in millions) 2023 (a) 2022 Land $ 110.1 $ 112.2 Buildings and improvements 42.7 56.5 Advertising structures 1,716.2 2,006.8 Furniture, equipment and other 173.9 183.4 Construction in progress 39.5 38.5 2,082.4 2,397.4 Less accumulated depreciation 1,424.6 1,697.6 Property and equipment, net $ 657.8 $ 699.8 (a) In 2023, in connection with the Transaction, Property and equipment were reclassified as Assets held for sale on the Consolidated Statement of Financial Position. (See Note 12. Acquisitions and Dispositions : Dispositions : Canadian Business .)

Long-Lived Assets (Tables)

Long-Lived Assets (Tables)	12 Months Ended
	Dec. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Goodwill	For the years ended December 31, 2023 and 2022, the changes in the book value of goodwill by segment were as follows: (in millions) U.S. Media Other Total As of December 31, 2021 $ 2,054.0 $ 23.8 $ 2,077.8 Currency translation adjustments — (1.4) (1.4) As of December 31, 2022 2,054.0 22.4 2,076.4 Dispositions (a) — (22.9) (22.9) Currency translation adjustments — 0.5 0.5 Impairment (47.6) — (47.6) As of December 31, 2023 2,006.4 — 2,006.4 (a) In 2023, in connection with the Transaction, Goodwill in Other was reclassified as Assets held for sale on the Consolidated Statement of Financial Position. (See Note 12. Acquisitions and Dispositions : Dispositions : Canadian Business .)
Schedule of Finite-Lived Intangible Assets	Our identifiable intangible assets consist of the following: (in millions) Gross Accumulated Impairment Net As of December 31, 2023: Permits and leasehold agreements $ 1,535.5 $ (893.8) $ — $ 641.7 Franchise agreements (a) 934.8 (426.4) (467.9) 40.5 Other intangible assets 19.5 (6.3) — 13.2 Total intangible assets (b) $ 2,489.8 $ (1,326.5) $ (467.9) $ 695.4 As of December 31, 2022: Permits and leasehold agreements $ 1,597.6 $ (868.7) $ — $ 728.9 Franchise agreements 533.2 (418.6) — 114.6 Other intangible assets 18.9 (3.9) — 15.0 Total intangible assets $ 2,149.7 $ (1,291.2) $ — $ 858.5 (a) We reclassified all Prepaid MTA equipment deployment costs (see Note 17. Commitments and Contingencies ) and recorded impairments in the second, third and fourth quarters of 2023 due to a decline in the long-term outlook of our U.S. Transit and Other reporting unit. (b) In 2023, in connection with the Transaction, Intangible assets, net, of $53.0 million was reclassified as Assets held for sale on the Consolidated Statement of Financial Position. (See Note 12. Acquisitions and Dispositions : Disposition s: Canadian Business. )
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense	We expect our aggregate annual amortization expense for intangible assets for each of the years 2024 through 2028, to be as follows: (in millions) 2024 2025 2026 2027 2028 Amortization expense $ 68.9 $ 65.9 $ 61.1 $ 55.3 $ 51.2

Leases (Tables)

Leases (Tables)	12 Months Ended
	Dec. 31, 2023
Leases [Abstract]
Operating lease assets and liabilities, lessee	As of (in millions, except years and percentages) December 31, 2023 December 31, 2022 Operating lease assets (a) $ 1,591.9 $ 1,562.6 Short-term operating lease liabilities (a) 180.9 188.1 Non-current operating lease liabilities (a) 1,417.4 1,369.0 Weighted-average remaining lease term 10.9 years 11.0 years Weighted-average discount rate 6.2 % 5.8 % (a) In 2023, in connection with the Transaction, Operating lease assets of $85.9 million was reclassified as Assets held for sale and Short-term operating lease liabilities of $15.1 million and Non-current Operating lease liabilities of $70.4 million were reclassified as Liabilities held for sale on the Consolidated Statement of Financial Position. (See Note 12. Acquisitions and Dispositions : Disposition s: Canadian Business. )
Lease expenses, lessee	Year Ended December 31, (in millions) 2023 2022 2021 Operating expenses $ 502.9 $ 451.5 $ 401.7 Selling, general and administrative expenses 13.0 10.5 9.3 Variable costs 143.7 113.8 80.6 Cash paid for operating leases 486.6 458.2 394.3 Leased assets obtained in exchange for new operating lease liabilities 397.2 285.1 279.4 (a) Includes an out-of-period adjustment of $5.2 million recorded in the first quarter of 2023 related to variable billboard property lease expenses (see Note 1. Description of Business and Basis of Presentation ).
Minimum rental payments under operating leases	As of December 31, 2023, minimum rental payments under operating leases are as follows: (in millions) Operating 2024 $ 275.2 2025 264.2 2026 239.9 2027 218.3 2028 178.5 2029 and thereafter 1,146.9 Total operating lease payments 2,323.0 Less: Interest 724.7 Present value of lease liabilities (a) $ 1,598.3 (a) Excludes minimum rental payments to be made in connection with $85.4 million of lease liabilities reclassified to Liabilities held for sale on the Consolidated Statement of Financial Position in connection with the Transaction. (See Note 12. Acquisitions and Dispositions : Dispositions : Canadian Business .)
Minimum rental payments to be received	As of December 31, 2023, rental payments to be received under non-cancellable operating leases are as follows: (in millions) Rental Income 2024 $ 521.8 2025 28.8 2026 6.5 2027 2.3 2028 2.0 2029 and thereafter 10.0 Total minimum payments (a) $ 571.4 (a) Excludes an immaterial amount of rental payments to be received under non-cancellable operating leases related to amounts reclassified to Assets held for sale on the Consolidated Statement of Financial Position in connection with the Transaction. (See Note 12. Acquisitions and Dispositions : Dispositions : Canadian Business .)

Asset Retirement Obligation (Ta

Asset Retirement Obligation (Tables)	12 Months Ended
	Dec. 31, 2023
Asset Retirement Obligation Disclosure [Abstract]
Schedule of Change in Asset Retirement Obligation	Year Ended December 31, (in millions) 2023 2022 Balance, at beginning of period $ 37.8 $ 36.4 Accretion expense 3.1 2.8 Additions 0.2 0.8 Liabilities settled (a) (8.2) (1.9) Foreign currency translation adjustments 0.1 (0.3) Balance, at end of period $ 33.0 $ 37.8 (a) In 2023, includes $5.0 million of liabilities reclassified to Liabilities held for sale on the Consolidated Statement of Financial Position in connection with the Transaction. (See Note 12. Acquisitions and Dispositions : Dispositions : Canadian Business

Debt (Tables)

Debt (Tables)	12 Months Ended
	Dec. 31, 2023
Debt Disclosure [Abstract]
Schedule of Debt Instruments	Debt, net, consists of the following: As of December 31, (in millions, except percentages) 2023 2022 Short-term debt: AR Facility $ 65.0 $ 30.0 Total short-term debt 65.0 30.0 Long-term debt: Term loan, due 2026 $ 598.9 $ 598.6 Senior secured notes: 7.375% senior secured notes, due 2031 450.0 — Senior unsecured notes: 6.250% senior unsecured notes, due 2025 — 400.0 5.000% senior unsecured notes, due 2027 650.0 650.0 4.250% senior unsecured notes, due 2029 500.0 500.0 4.625% senior unsecured notes, due 2030 500.0 500.0 Total senior unsecured notes 1,650.0 2,050.0 Debt issuance costs (22.4) (22.6) Total long-term debt, net 2,676.5 2,626.0 Total debt, net $ 2,741.5 $ 2,656.0 Weighted average cost of debt 5.7 % 5.2 %

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Loss (Tables)	12 Months Ended
	Dec. 31, 2023
Accumulated Other Comprehensive Income [Abstract]
Schedule of Accumulated Other Comprehensive Loss	The following table presents the changes in the components of accumulated other comprehensive loss. (in millions) Cumulative Net Loss on Interest Rate Cash Flow Swaps Accumulated As of December 31, 2020 $ (1.3) $ (11.1) $ (5.6) $ (18.0) Other comprehensive income before reclassifications — 7.9 5.2 13.1 Amortization of actuarial losses reclassified to net income (a) — 0.5 — 0.5 Total other comprehensive income, net of tax — 8.4 5.2 13.6 As of December 31, 2021 (1.3) (2.7) (0.4) (4.4) Other comprehensive income (loss) before reclassifications (7.9) 2.8 0.4 (4.7) Total other comprehensive income (loss), net of tax (7.9) 2.8 0.4 (4.7) As of December 31, 2022 (9.2) 0.1 — (9.1) Other comprehensive income before reclassifications 3.1 0.2 — 3.3 Total other comprehensive income, net of tax 3.1 0.2 — 3.3 As of December 31, 2023 $ (6.1) $ 0.3 $ — $ (5.8) (a) See Note 14. Retirement Benefits to the Consolidated Financial Statements for additional details of items reclassified from accumulated other comprehensive loss to net income.

Revenues (Tables)

Revenues (Tables)	12 Months Ended
	Dec. 31, 2023
Revenue from Contract with Customer [Abstract]
Disaggregation of Revenue	The following table summarizes revenues by source: Years Ended December 31, (in millions) 2023 2022 2021 Billboard: Static displays $ 948.0 $ 936.9 $ 829.8 Digital displays 441.7 400.8 308.1 Other 55.2 47.0 44.4 Billboard revenues 1,444.9 1,384.7 1,182.3 Transit: Static displays 191.8 212.6 170.5 Digital displays 146.6 139.1 81.3 Other 31.1 29.4 26.2 Total transit revenues 369.5 381.1 278.0 Other 6.2 6.3 3.6 Transit and other revenues 375.7 387.4 281.6 Total revenues $ 1,820.6 $ 1,772.1 $ 1,463.9
Revenue from External Customers by Geographic Areas	The following table summarizes revenues by geography: Years Ended December 31, (in millions) 2023 2022 2021 United States: Billboard $ 1,369.7 $ 1,308.8 $ 1,116.1 Transit and other 352.6 365.1 265.9 Other 6.2 6.3 3.6 Total United States revenues 1,728.5 1,680.2 1,385.6 Canada 92.1 91.9 78.3 Total revenues $ 1,820.6 $ 1,772.1 $ 1,463.9 Year Ended December 31, (in millions) 2023 2022 2021 Revenues (a) : United States $ 1,728.5 $ 1,680.2 $ 1,385.6 Canada 92.1 91.9 78.3 Total revenues $ 1,820.6 $ 1,772.1 $ 1,463.9 (a) Revenues classifications are based on the geography of the advertising.

Business Combinations and Asset

Business Combinations and Asset Acquisitions (Tables)	12 Months Ended
	Dec. 31, 2023
Business Combination and Asset Acquisition [Abstract]
Disclosure of Long-Lived Assets Held-for-Sale	The components of Assets held for sale and Liabilities held for sale were as follows: (in millions) As of Current assets: Receivables, less allowances $ 26.7 Other current assets 7.9 Current assets held for sale 34.6 Property and equipment, net 39.9 Goodwill 22.9 Intangible assets 53.0 Operating lease assets 85.9 Other assets 12.6 Total assets held for sale $ 248.9 Current liabilities held for sale 24.1 Deferred income tax liabilities, net 15.5 Asset retirement obligation 5.0 Operating lease liabilities 70.4 Total liabilities held for sale $ 115.0

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	12 Months Ended
	Dec. 31, 2023
Share-Based Payment Arrangement [Abstract]
Stock-based compensation expense	The following table summarizes our stock-based compensation expense for 2023, 2022 and 2021. Year Ended December 31, (in millions) 2023 2022 2021 Stock-based compensation expense (RSUs and PRSUs), before income taxes $ 28.4 $ 33.8 $ 28.6 Tax benefit (1.0) (1.6) (1.4) Stock-based compensation expense, net of tax $ 27.4 $ 32.2 $ 27.2
Activity of RSUs and PRSUs issued to our employees	The following table summarizes the 2023 activity of the RSUs and PRSUs issued to our employees. Activity Weighted Average Per Share Grant Date Fair Market Value Non-vested as of December 31, 2022 2,644,039 $ 24.28 Granted: RSUs 1,109,485 19.03 PRSUs 619,687 20.64 Vested: RSUs (941,942) 24.56 PRSUs (516,609) 25.36 Forfeitures: RSUs (97,480) 21.25 PRSUs (35,344) 21.50 Non-vested as of December 31, 2023 2,781,836 21.10

Retirement Benefits (Tables)

Retirement Benefits (Tables)	12 Months Ended
	Dec. 31, 2023
Retirement Benefits [Abstract]
Change in benefit obligation	The following table sets forth the change in benefit obligation for our pension plans. As of December 31, (in millions) 2023 2022 2021 Benefit obligation, beginning of year $ 47.0 $ 65.3 $ 71.3 Service cost — — 0.1 Interest cost 2.1 1.9 1.8 Actuarial gain (0.3) (14.8) (5.2) Settlements paid (20.2) — — Benefits paid (2.0) (2.2) (2.9) Cumulative translation adjustments 0.6 (3.2) 0.2 Benefit obligation, end of year $ 27.2 $ 47.0 $ 65.3
Change in plan assets	The following table sets forth the change in plan assets for our pension plans. As of December 31, (in millions) 2023 2022 Fair value of plan assets, beginning of year $ 55.5 $ 69.5 Actual return on plan assets 2.9 (8.2) Settlements paid (20.2) — Benefits paid (2.0) (2.2) Cumulative translation adjustments 0.9 (3.6) Fair value of plan assets, end of year $ 37.1 $ 55.5
Unfunded status and amounts recognized in consolidated statement of financial position	The unfunded status of pension benefit obligations and the related amounts recognized on the Consolidated Statement of Financial Position were as follows: As of December 31, (in millions) 2023 2022 Funded status, end of year $ 9.9 $ 8.5 Amounts recognized on the Consolidated Statement of Financial Position: Assets held for sale $ 10.4 — Other assets — 8.5 Other liabilities (0.5) — Net amounts recognized 9.9 7.9
Amounts recognized in accumulated other comprehensive income (loss)	The following amounts were recognized in accumulated other comprehensive loss on the Consolidated Statement of Financial Position. As of December 31, (in millions) 2023 2022 Net actuarial gain $ 0.4 $ 0.2 Deferred income taxes (0.1) (0.1) Net amount recognized in accumulated other comprehensive income $ 0.3 $ 0.1
Schedule of Accumulated Benefit Obligations in Excess of Fair Value of Plan Assets	The following table presents our benefit obligations and fair value of plan assets. As of December 31, (in millions) 2023 2022 Projected benefit obligation $ 27.2 $ 47.0 Accumulated benefit obligation 25.1 45.2 Fair value of plan assets 37.1 55.5
Schedule of Net Benefit Costs	The following tables present the components of net periodic pension cost and amounts recognized in other comprehensive income (loss). As of December 31, (in millions) 2023 2022 2021 Service cost $ — $ — $ 0.1 Interest cost 2.1 1.9 1.8 Expected return on plan assets (2.6) (2.8) (2.6) Amortization of actuarial losses (a) — — 0.6 Settlement gain (0.5) — — Net periodic pension cost $ (1.0) $ (0.9) $ (0.1)
Schedule of Amounts Recognized in Other Comprehensive Income (Loss)	(in millions) Year Ended December 31, 2023 Actuarial gain $ 0.7 Settlement cost (0.5) Recognized in other comprehensive income, net of tax $ 0.2 (a) Reflects amounts reclassified from accumulated other comprehensive income (loss) to net income.
Weighted average assumptions used to determine benefit obligations and net periodic cost	As of and for the Year Ended December 31, 2023 2022 Weighted average assumptions used to determine benefit obligations: Discount rate 4.8 % 5.0 % Rate of compensation increase 3.3 3.3 Weighted average assumptions used to determine net periodic cost: Discount rate 5.0 3.0 Expected long-term return on plan assets 4.2 5.2 Rate of compensation increase 3.3 3.3
Pension plan assets categorized according to the FASB fair value hierarchy	The following tables set forth our pension plan assets measured at fair value on a recurring basis as of December 31, 2023 and 2022. These assets have been categorized according to the three-level fair value hierarchy established by the FASB which prioritizes the inputs used in measuring fair value. Level 1 is based on quoted prices for the asset in active markets. Level 2 is based on inputs that are observable other than quoted market prices in active markets, such as quoted prices for the asset in inactive markets or quoted prices for similar assets. Level 3 is based on unobservable inputs that market participants would use in pricing the asset. As of December 31, 2023 (in millions) Level 1 Level 2 Level 3 Total Cash and cash equivalents $ 0.1 $ — $ — $ 0.1 Fixed income securities: Corporate bonds (a) 0.6 — — 0.6 Equity securities : U.S. equity 0.8 — — 0.8 International equity 0.3 — — 0.3 Total assets in fair value hierarchy $ 1.8 $ — $ — $ 1.8 Common collective funds measured at net asset value 35.3 Total assets $ 37.1 As of December 31, 2022 (in millions) Level 1 Level 2 Level 3 Total Fixed income securities: Corporate bonds (a) $ 0.5 $ — $ — $ 0.5 Equity securities : U.S. equity 0.7 — — 0.7 International equity 0.3 — — 0.3 Insurance contracts — — 22.0 22.0 Total assets in fair value hierarchy $ 1.5 $ — $ 22.0 $ 23.5 Common collective funds measured at net asset value 32.0 Total assets $ 55.5 (a) Securities of diverse industries, substantially all investment grade.
Significant changes in Level 3 plan assets	Significant changes in Level 3 plan assets are as follows: Year Ended December 31, (in millions) 2023 2022 Insurance contracts: Beginning of year $ 22.0 $ 29.4 Settlement (a) (22.0) — Payments — (1.9) Actuarial loss — (4.6) Interest income — 0.8 Cumulative translation adjustments — (1.7) End of year $ — $ 22.0 (a)
Schedule of Expected Benefit Payments	(in millions) 2024 2025 2026 2027 2028 2029-2033 Estimated future benefit payments for pension plans 0.9 0.8 1.0 1.1 1.4 8.1

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2023
Income Tax Disclosure [Abstract]
Schedule of Income (Loss) before Income Tax, Domestic and Foreign	The U.S. and foreign components of Income (loss) before benefit (provision) for income taxes and equity in earnings of investee companies were as follows: Year Ended December 31, (in millions) 2023 2022 2021 United States $ (436.4) $ 148.0 $ 32.6 Foreign 11.8 7.7 (1.0) Income (loss) before benefit (provision) for income taxes and equity in earnings of investee companies $ (424.6) $ 155.7 $ 31.6
Book Income (Loss) To REIT Taxable Income Reconciliation	The following table reconciles Income (loss) before benefit (provision) for income taxes and equity in earnings of investee companies to REIT taxable income. Year Ended December 31, (in millions) 2023 2022 2021 Income (loss) before benefit (provision) for income taxes and equity in earnings of investee companies $ (424.6) $ 155.7 $ 31.6 Net loss of TRSs 151.4 15.2 21.9 Income (loss) from REIT operations (273.2) 170.9 53.5 Book/tax differences Depreciation 27.9 33.7 (2.0) Amortization (13.6) (13.3) (6.1) Dividend from foreign subsidiary 2.1 2.1 1.4 Stock-based compensation (0.9) 3.8 5.0 Deferred gain for tax (6.8) (1.0) (3.0) Investments in joint ventures 5.5 9.9 5.0 Executive compensation 11.2 9.4 6.3 Lease expense 8.4 4.3 5.7 Provision for doubtful accounts 1.5 3.3 (7.5) Interest — (11.2) 13.8 Impairment charges (a) 388.2 — — Other 13.6 1.5 4.3 REIT taxable income (estimated) $ 163.9 $ 213.4 $ 76.4 (a) Impairment charges related to our U.S. transit business (see Note 4. Long-Lived Assets)
Schedule of Components of Income Tax Expense (Benefit)	The components of the Benefit (provision) for income taxes are as follows: Year Ended December 31, (in millions) 2023 2022 2021 Current: Federal $ — $ (0.1) $ 0.5 State and local (1.0) (1.0) (0.7) Foreign (3.1) (3.6) (1.1) (4.1) (4.7) (1.3) Deferred: Federal — (5.0) 3.2 State and local — (1.7) 1.1 Foreign 0.1 2.0 0.4 0.1 (4.7) 4.7 Benefit (provision) for income taxes $ (4.0) $ (9.4) $ 3.4
Schedule of Effective Income Tax Rate Reconciliation	The difference between income taxes expected at the U.S. federal statutory income tax rate of 21% and the Benefit (provision) for income taxes is summarized as follows: Year Ended December 31, (in millions) 2023 2022 2021 Benefit (provision) for income taxes on income at U.S. statutory rate $ 89.2 $ (32.7) $ (6.6) REIT dividends paid deduction 24.2 35.9 11.3 State and local taxes, net of federal tax benefit (1.0) (2.9) 0.1 Effect of foreign operations (1.0) (0.5) (0.9) Impairment charges (a) (110.6) — — Other, net (4.8) (9.2) (0.5) Benefit (provision) for income taxes $ (4.0) $ (9.4) $ 3.4 (a) Primarily a permanent book/tax difference for impairment charges related to our U.S. transit business (see Note 4. Long-Lived Assets)
Schedule of Deferred Tax Assets and Liabilities	The following table is a summary of the components of deferred income tax assets and liabilities. As of December 31, (in millions) 2023 2022 Deferred income tax assets: Provision for expenses and losses $ 6.6 $ 3.5 Postretirement and other employee benefits 2.2 2.5 Tax credit and loss carryforwards 5.8 5.9 Property, equipment and intangible assets 2.0 0.2 Total deferred income tax assets 16.6 12.1 Valuation allowance (16.6) (11.9) Deferred income tax assets, net — 0.2 Deferred income tax liabilities: Property, equipment and intangible assets (12.8) (13.0) Postretirement and other employee benefits (2.5) (2.2) Other (0.2) (0.2) Total deferred income tax liabilities (15.5) (15.4) Deferred income tax liabilities, net $ (15.5) $ (15.2)

Earnings Per Share ("EPS") (Tab

Earnings Per Share ("EPS") (Tables)	12 Months Ended
	Dec. 31, 2023
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted	Year Ended December 31, (in millions) 2023 2022 2021 Net income (loss) available for common stockholders $ (430.4) $ 147.9 $ 35.6 Less: Distributions to holders of Series A Preferred Stock 8.8 12.0 28.0 Less: Distributions to holders of Class A equity interests of a subsidiary — 0.1 0.1 Net income (loss) available for common stockholders, basic and diluted $ (439.2) $ 135.8 $ 7.5 Weighted average shares for basic EPS 164.9 161.1 145.4 Dilutive potential shares from grants of RSUs, PRSUs and stock options (a) — 0.7 0.7 Weighted average shares for diluted EPS (a)(b)(c) 164.9 161.8 146.1 (a) The potential impact of an aggregate 1.8 million granted RSUs, PRSUs and stock options for 2023, 0.7 million granted RSUs, PRSUs and stock options for 2022 and 0.1 million granted RSUs, PRSUs and stock options for 2021 was antidilutive. (b) The potential impact of 7.8 million shares of our common stock issuable upon conversion of our Series A Preferred Stock in 2023, 10.6 million shares of our common stock issuable upon conversion of our Series A Preferred Stock in 2022 and 25.0 million shares of our common stock issuable upon conversion of our Series A Preferred Stock in 2021 was antidilutive. (c)

Commitment and Contingencies (T

Commitment and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2023
Commitments and Contingencies Disclosure [Abstract]
Contractual Obligation, Fiscal Year Maturity Schedule	As of December 31, 2023, guaranteed minimum annual payments are as follows: (in millions) Guaranteed 2024 $ 199.3 2025 205.9 2026 205.8 2027 193.6 2028 196.3 2029 and thereafter 367.9 Total minimum payments (a) $ 1,368.8 (a) Excludes guaranteed minimum annual payments of $11.9 million in connection with the Transaction. (See Note 12. Acquisitions and Dispositions : Dispositions : Canadian Business .)
MTA agreement schedule	(in millions) Beginning Balance Deployment Costs Incurred Recoupment/MTA Funding Amortization/Impairment Reclassification Ending Balance Year Ended December 31, 2023: Prepaid MTA equipment deployment costs $ 363.2 $ 21.8 $ — $ — $ (385.0) $ — Other current assets 1.6 (0.4) (0.1) — — 1.1 Intangible assets (franchise agreements) 62.0 22.3 — (469.3) 385.0 — Total $ 426.8 $ 43.7 $ (0.1) $ (469.3) $ — $ 1.1 Year Ended December 31, 2022: Prepaid MTA equipment deployment costs $ 279.8 $ 83.4 $ — $ — $ — $ 363.2 Other current assets 5.2 0.1 (3.7) — — 1.6 Intangible assets (franchise agreements) 63.0 5.4 — (6.4) — 62.0 Total $ 348.0 $ 88.9 $ (3.7) $ (6.4) $ — $ 426.8

Segment Information (Tables)

Segment Information (Tables)	12 Months Ended
	Dec. 31, 2023
Segment Reporting [Abstract]
Reconciliation of Revenue from Segments to Consolidated	The following tables set forth our financial performance by segment. Year Ended December 31, (in millions) 2023 2022 2021 Revenues: U.S. Media $ 1,722.3 $ 1,673.9 $ 1,382.0 Other 98.3 98.2 81.9 Total revenues $ 1,820.6 $ 1,772.1 $ 1,463.9
Adjusted OIBDA by segment and Reconciliation to Consolidated Net Income	Year Ended December 31, (in millions) 2023 2022 2021 Net income (loss) before allocation to non-controlling interests $ (429.7) $ 149.1 $ 36.4 (Benefit) provision for income taxes 4.0 9.4 (3.4) Equity in earnings of investee companies, net of tax 1.1 (2.8) (1.4) Interest expense, net 158.4 131.8 130.4 Loss on extinguishment of debt 8.1 — 6.3 Other (income) loss, net (0.3) 0.2 — Operating income (loss) (258.4) 287.7 168.3 Net (gain) loss on dispositions (14.2) 0.2 (4.5) Impairment charges 534.7 — 2.5 Depreciation and amortization 160.5 150.7 145.4 Stock-based compensation 28.4 33.8 28.6 Total Adjusted OIBDA $ 451.0 $ 472.4 $ 340.3 Adjusted OIBDA: U.S. Media $ 479.4 $ 501.2 $ 382.9 Other 23.1 20.6 10.4 Corporate (51.5) (49.4) (53.0) Total Adjusted OIBDA $ 451.0 $ 472.4 $ 340.3
Tabular Disclosure by Reportable Segments	Year Ended December 31, (in millions) 2023 2022 2021 Operating income (loss): U.S. Media $ (189.9) $ 363.0 $ 248.5 Other 11.4 7.9 1.4 Corporate (79.9) (83.2) (81.6) Total operating income (loss) $ (258.4) $ 287.7 $ 168.3 Net (gain) loss on dispositions: U.S. Media $ (14.2) $ 0.2 $ (1.5) Other — — (3.0) Total (gain) loss on dispositions $ (14.2) $ 0.2 $ (4.5) Impairment charges (a)(b) : U.S. Media $ 534.7 $ — $ 2.5 Total impairment charges $ 534.7 $ — $ 2.5 Depreciation and amortization: U.S. Media $ 148.8 $ 138.0 $ 133.4 Other 11.7 12.7 12.0 Total depreciation and amortization $ 160.5 $ 150.7 $ 145.4 Capital expenditures: U.S. Media $ 76.0 $ 85.4 $ 69.3 Other 10.8 4.4 4.5 Total capital expenditures $ 86.8 $ 89.8 $ 73.8 (a) In 2023, Impairment charges related to a decline in the long-term outlook of our U.S. Transit and Other reporting unit (see Note 4. Long-Lived Assets) and an other-than-temporary decline in fair value of a cost-method investment. (b) In 2021, Impairment charges related to an other-than-temporary decline in fair value of a cost-method investment.
Reconciliation of Assets from Segment to Consolidated	As of December 31, (in millions) 2023 2022 2021 Assets: U.S. Media $ 5,297.2 $ 5,732.1 $ 5,280.7 Other (a) 259.7 240.4 248.1 Corporate 26.0 17.5 395.9 Total assets $ 5,582.9 $ 5,990.0 $ 5,924.7 (a) In 2023, includes amounts reclassified as Assets held for sale on the Consolidated Statement of Financial Position. (See Note 12. Acquisitions and Dispositions : Dispositions : Canadian Business .)
Schedule of Revenue from External Customers by Geographic Area	The following table summarizes revenues by geography: Years Ended December 31, (in millions) 2023 2022 2021 United States: Billboard $ 1,369.7 $ 1,308.8 $ 1,116.1 Transit and other 352.6 365.1 265.9 Other 6.2 6.3 3.6 Total United States revenues 1,728.5 1,680.2 1,385.6 Canada 92.1 91.9 78.3 Total revenues $ 1,820.6 $ 1,772.1 $ 1,463.9 Year Ended December 31, (in millions) 2023 2022 2021 Revenues (a) : United States $ 1,728.5 $ 1,680.2 $ 1,385.6 Canada 92.1 91.9 78.3 Total revenues $ 1,820.6 $ 1,772.1 $ 1,463.9 (a) Revenues classifications are based on the geography of the advertising.
Long-lived Assets by Geographic Areas	As of December 31, (in millions) 2023 2022 2021 Long-lived assets (a) : United States $ 4,962.6 $ 5,391.0 4,937.0 Canada (b) 214.3 195.8 192.1 Total long-lived assets $ 5,176.9 $ 5,586.8 $ 5,129.1 (a) Reflects total assets less current assets, investments and non-current deferred tax assets. (b) In 2023, includes amounts reclassified as Assets held for sale on the Consolidated Statement of Financial Position. (See Note 12. Acquisitions and Dispositions : Dispositions : Canadian Business .)

II - Valuation and Qualifying_2

II - Valuation and Qualifying Accounts (Tables)	12 Months Ended
	Dec. 31, 2023
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]
Schedule of Valuation and Qualifying Accounts	Col. A Col. B Col. C Col. D Col. E Description Balance at Balance Charged to Charged to Other Accounts (a) Deductions Balance at Allowance for doubtful accounts: Year ended December 31, 2023 $ 20.2 $ — $ 5.8 $ (0.1) $ 8.7 $ 17.2 Year ended December 31, 2022 18.5 — 4.9 2.0 5.2 20.2 Year ended December 31, 2021 26.3 $ — (4.0) 0.5 4.3 18.5 Valuation allowance on deferred tax assets: Year ended December 31, 2023 $ 11.9 $ — $ 4.7 $ — $ — $ 16.6 Year ended December 31, 2022 0.4 — 11.9 — 0.4 11.9 Year ended December 31, 2021 0.4 — — — — 0.4 (a) Reflects change in allowance related to foreign currency translation adjustments and amounts reclassified to Assets held for sale on the Consolidated Statements of Financial Position.

III - Schedule of Real Estate_2

III - Schedule of Real Estate and Accumulated Depreciation Schedule of Real Estate and Accumulated Depreciation (Tables)	12 Months Ended
	Dec. 31, 2023
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation Disclosure [Abstract]
SEC Schedule III, Real Estate and Accumulated Depreciation Disclosure	Initial Cost Cost Gross Carrying Amount at December 31, 2023 (3) Description (1) Encumbrances Land Structures and Improvements Land Structures and Improvements Total Accumulated Construction Acquisition Useful Structures added prior to January 1, 2014 United States - 37,660 displays — (2) (2) (2) $ 79.8 $ 1,528.0 $ 1,607.8 $ (1,298.8) Various Various 3 to 20 years Canada - 4,168 displays — (2) (2) (2) 1.5 285.5 287.0 (285.2) Various Various 3 to 20 years $ 81.3 $ 1,813.5 $ 1,894.8 $ (1,584.0) Structures added subsequent to January 1, 2014 United States - 3,131 displays $ 30.3 $ 243.5 $ (16.2) $ 30.3 $ 227.3 $ 257.6 $ (8.4) Various Various 3 to 20 years Canada - 441 displays — 33.8 0.3 — 34.1 34.1 (2.0) Various Various 3 to 20 years $ 30.3 $ 277.3 $ (15.9) $ 30.3 $ 261.4 $ 291.7 $ (10.4) Total United States - 40,791 displays $ 110.1 $ 1,755.3 $ 1,865.4 $ (1,307.2) Various Various 3 to 20 years Canada - 4,609 displays 1.5 319.6 321.1 (287.2) Various Various 3 to 20 years $ 111.6 $ 2,074.9 $ 2,186.5 $ (1,594.4) ______________________ (1) No single asset exceeded 5% of the total gross carrying amount as of December 31, 2023. (2) This information is omitted as it would be impracticable to compile on a site-by-site basis. (3) Includes sites under construction. The following table summarizes the activity for the Company’s real estate assets, which consist of advertising displays, and the related accumulated depreciation. 2023 2022 2021 Gross real estate assets: Balance at the beginning of the year $ 2,119.0 $ 2,040.3 $ 1,993.0 New Investments 19.6 33.2 28.3 Redevelopments 37.2 50.9 15.3 Recurring capital expenditures 8.8 15.6 12.4 Purchase price accounting adjustments — — 0.7 Land acquisitions 0.1 9.7 5.0 Additions for construction of / improvements to structures 65.7 109.4 61.7 Assets sold or written-off (6.5) (9.0) (14.6) Foreign exchange 8.3 (21.7) 0.2 Balance at the end of the year $ 2,186.5 $ 2,119.0 $ 2,040.3 Accumulated depreciation: Balance at the beginning of the year $ 1,519.5 $ 1,490.9 $ 1,448.2 Depreciation 60.2 56.1 56.0 Impairment 12.5 — — Assets sold or written-off (5.4) (7.5) (13.5) Foreign exchange 7.6 (20.0) 0.2 Balance at the end of the year $ 1,594.4 $ 1,519.5 $ 1,490.9

Description of Business and B_3

Description of Business and Basis of Presentation - Narrative (Details) $ in Millions, $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2023 USD ($)	Dec. 31, 2023 USD ($) markets segment		Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Oct. 22, 2023 CAD ($)
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of largest domestic markets in which the entity operates | markets		25
Approximate number of markets in which the entity operates | markets		150
Number of operating segments | segment		2
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Operating		$ 968.3		$ 911.4	$ 784
Variable lease costs		$ 143.7	[1]	$ 113.8	$ 80.6
Out-of-period adjustment		For the three months ended March 31, 2023, the Company recorded an out-of-period adjustment relating to variable billboard property lease expenses and accrued lease and franchise costs in 2022, resulting in a $5.2 million increase in Operating expenses for the three months ended March 31, 2023. The Company assessed the materiality of the amount reflected in this adjustment on its previously issued financial statements in accordance with the SEC’s Staff Accounting Bulletin (“SAB”) No. 99 and SAB No. 108 and concluded that the amount was not material, individually or in the aggregate, to any of its previously issued financial statements.
Immaterial Error Correction
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Operating	$ 5.2
Variable lease costs	$ 5.2
Canadian Business | Disposal Group, Disposed of by Sale, Not Discontinued Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Selling Price						$ 410
[1]Includes an out-of-period adjustment of $5.2 million recorded in the first quarter of 2023 related to variable billboard property lease expenses

Summary of Significant Accoun_4

Summary of Significant Accounting Policies - Property and Equipment (Details)	Dec. 31, 2023
Buildings and improvements | Minimum
Property and Equipment [Line Items]
Property and equipment, useful life	15 years
Buildings and improvements | Maximum
Property and Equipment [Line Items]
Property and equipment, useful life	35 years
Advertising structures | Minimum
Property and Equipment [Line Items]
Property and equipment, useful life	3 years
Advertising structures | Maximum
Property and Equipment [Line Items]
Property and equipment, useful life	20 years
Furniture, equipment and other | Minimum
Property and Equipment [Line Items]
Property and equipment, useful life	3 years
Furniture, equipment and other | Maximum
Property and Equipment [Line Items]
Property and equipment, useful life	10 years

Summary of Significant Accoun_5

Summary of Significant Accounting Policies - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Summary of Accounting Policies [Line Items]
Customer billing term	30 days
Provision (recovery) for doubtful accounts	$ 5.8	$ 4.9	$ (4)
Minimum
Summary of Accounting Policies [Line Items]
Intangible asset, useful life	5 years
Customer contract term	28 days
Lessee, Operating Lease, Term of Contract	1 month
Operating lease term (lessor)	28 days
Prepaid lease term	1 month
Minimum | Equity Method Investment [Domain]
Summary of Accounting Policies [Line Items]
Equity method investment ownership percentage	20%
Maximum
Summary of Accounting Policies [Line Items]
Cost method investment ownership percentage	20%
Intangible asset, useful life	40 years
Customer contract term	1 year
Operating lease term (lessor)	1 year
Prepaid lease term	12 months
Maximum | Equity Method Investment [Domain]
Summary of Accounting Policies [Line Items]
Equity method investment ownership percentage	50%
Direct Lease Acquisition Cost | Minimum
Summary of Accounting Policies [Line Items]
Intangible asset, useful life	28 days
Direct Lease Acquisition Cost | Maximum
Summary of Accounting Policies [Line Items]
Intangible asset, useful life	1 year

Property and Equipment, Net - S

Property and Equipment, Net - Summary of Property and Equipment (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Property and Equipment [Line Items]
Property and equipment	$ 2,082.4	$ 2,397.4
Less: accumulated depreciation	1,424.6	1,697.6
Property and equipment, net	657.8	699.8
Land
Property and Equipment [Line Items]
Property and equipment	110.1	112.2
Buildings and improvements
Property and Equipment [Line Items]
Property and equipment	42.7	56.5
Advertising structures
Property and Equipment [Line Items]
Property and equipment	1,716.2	2,006.8
Furniture, equipment and other
Property and Equipment [Line Items]
Property and equipment	173.9	183.4
Construction in progress
Property and Equipment [Line Items]
Property and equipment	$ 39.5	$ 38.5

Property and Equipment, Net - N

Property and Equipment, Net - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Property, Plant and Equipment [Abstract]
Depreciation	$ 79.3	$ 77.4	$ 79.4

Long-Lived Assets - Schedule of

Long-Lived Assets - Schedule of Goodwill (Details) - USD ($)		3 Months Ended		12 Months Ended
		Dec. 31, 2023	Jun. 30, 2023	Dec. 31, 2023	Dec. 31, 2022
Goodwill [Roll Forward]
Goodwill, Beginning Balance				$ 2,076,400,000	$ 2,077,800,000
Disposition	[1]			(22,900,000)
Currency translation adjustments				500,000	(1,400,000)
Impairment charge		$ 0	$ (47,600,000)	(47,600,000)
Goodwill, Ending Balance		2,006,400,000		2,006,400,000	2,076,400,000
U.S. Media
Goodwill [Roll Forward]
Goodwill, Beginning Balance				2,054,000,000	2,054,000,000
Disposition				0
Impairment charge				(47,600,000)
Goodwill, Ending Balance		2,006,400,000		2,006,400,000	2,054,000,000
Other
Goodwill [Roll Forward]
Goodwill, Beginning Balance				22,400,000	23,800,000
Disposition	[1]			(22,900,000)
Currency translation adjustments				500,000	(1,400,000)
Impairment charge					0
Goodwill, Ending Balance		$ 0		$ 0	$ 22,400,000
[1] In 2023, in connection with the Transaction, Goodwill in Other was reclassified as Assets held for sale on the Consolidated Statement of Financial Position. (See Note 12. Acquisitions and Dispositions : Dispositions : Canadian Business .)

Long-Lived Assets - Narrative (

Long-Lived Assets - Narrative (Details) - Goodwill	3 Months Ended		12 Months Ended
	Dec. 31, 2023 USD ($)	Jun. 30, 2023 USD ($)	Dec. 31, 2023 USD ($) numberOfReportingUnits	Dec. 31, 2022
Goodwill [Line Items]
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount				28%
Impairment charge | $	$ 0	$ 47,600,000	$ 47,600,000
Number of Reporting Units | numberOfReportingUnits			2

Long-Lived Assets - Schedule _2

Long-Lived Assets - Schedule of Finite-Lived Intangible Assets (Details) - USD ($) $ in Millions		Dec. 31, 2023		Dec. 31, 2022
Finite-Lived Intangible Assets [Line Items]
Gross		$ 2,489.8	[1]	$ 2,149.7
Accumulated Amortization		(1,326.5)	[1]	(1,291.2)
Impairment	[1]	(467.9)
Intangible assets		695.4	[1]	858.5
Canadian Business
Finite-Lived Intangible Assets [Line Items]
Intangible assets		53
Permits and leasehold agreements
Finite-Lived Intangible Assets [Line Items]
Gross		1,535.5		1,597.6
Accumulated Amortization		(893.8)		(868.7)
Intangible assets		641.7		728.9
Franchise agreements
Finite-Lived Intangible Assets [Line Items]
Gross		934.8	[2]	533.2
Accumulated Amortization		(426.4)	[2]	(418.6)
Impairment	[2]	(467.9)
Intangible assets		40.5	[2]	114.6
Other intangible assets
Finite-Lived Intangible Assets [Line Items]
Gross		19.5		18.9
Accumulated Amortization		(6.3)		(3.9)
Intangible assets		$ 13.2		$ 15
[1] In 2023, in connection with the Transaction, Intangible assets, net, of $53.0 million was reclassified as Assets held for sale We reclassified all Prepaid MTA equipment deployment costs (see Note 17. Commitments and Contingencies ) and recorded impairments in the second, third and fourth quarters of 2023 due to a decline in the long-term outlook of our U.S. Transit and Other reporting unit.

Long-Lived Assets - Narrative_2

Long-Lived Assets - Narrative (Details) - Intangible Assets $ in Millions	3 Months Ended				12 Months Ended
	Dec. 31, 2023 USD ($) Displays		Sep. 30, 2023 USD ($)	Jun. 30, 2023 USD ($)	Dec. 31, 2023 USD ($) Displays		Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Finite-Lived Intangible Assets [Line Items]
Gross	$ 2,489.8	[1]			$ 2,489.8	[1]	$ 2,149.7
Amortization					81.2		73.3	$ 66
Impairment charges				$ 463.5	$ 534.7
Metropolitan Transportation Authority ("MTA")
Finite-Lived Intangible Assets [Line Items]
Impairment charges	$ 11		$ 12.1	$ 443.1
Acquired digital displays
Finite-Lived Intangible Assets [Line Items]
Intangible asset, useful life	17 years 6 months				17 years 6 months
Permits and leasehold agreements
Finite-Lived Intangible Assets [Line Items]
Gross	$ 1,535.5				$ 1,535.5		$ 1,597.6
Permits and leasehold agreements | Acquired digital displays
Finite-Lived Intangible Assets [Line Items]
Gross	30.4				30.4
Permits and leasehold agreements | Acquired digital displays | Canadian Business
Finite-Lived Intangible Assets [Line Items]
Gross	$ 2.7				$ 2.7
Permits and leasehold agreements | Digital displays | Acquired digital displays
Finite-Lived Intangible Assets [Line Items]
Number of displays | Displays	453				453
Permits and leasehold agreements | Digital displays | Acquired digital displays | Canadian Business
Finite-Lived Intangible Assets [Line Items]
Number of displays | Displays	5				5
[1] In 2023, in connection with the Transaction, Intangible assets, net, of $53.0 million was reclassified as Assets held for sale

Long-Lived Assets - Schedule _3

Long-Lived Assets - Schedule of Future Amortization Expense (Details) $ in Millions	Dec. 31, 2023 USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
2024	$ 68.9
2025	65.9
2026	61.1
2027	55.3
2028	$ 51.2

Lease assets and liabilities, l

Lease assets and liabilities, lessee (Details) - USD ($) $ in Millions	Dec. 31, 2023		Dec. 31, 2022
Lessee, Lease, Description [Line Items]
Operating lease assets	$ 1,591.9	[1]	$ 1,562.6
Short-term operating lease liabilities	180.9	[1]	188.1
Non-current operating lease liabilities	$ 1,417.4	[1]	$ 1,369
Weighted average remaining lease term	10 years 10 months 24 days		11 years
Weighted average discount rate	6.20%		5.80%
Canadian Business
Lessee, Lease, Description [Line Items]
Operating lease assets	$ 85.9
Short-term operating lease liabilities	15.1
Non-current operating lease liabilities	$ 70.4
[1] In 2023, in connection with the Transaction, Operating lease assets of $85.9 million was reclassified as Assets held for sale and Short-term operating lease liabilities of $15.1 million and Non-current Operating lease liabilities of $70.4 million were reclassified as Liabilities held for sale

Lease expenses (Details)

Lease expenses (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2023	Dec. 31, 2023		Dec. 31, 2022	Dec. 31, 2021
Lessee, Lease, Description [Line Items]
Variable lease costs		$ 143.7	[1]	$ 113.8	$ 80.6
Cash paid for operating leases		486.6		458.2	394.3
Operating lease asset obtained in exchange for operating lease liability		397.2		285.1	279.4
Operating		968.3		911.4	784
Immaterial Error Correction
Lessee, Lease, Description [Line Items]
Variable lease costs	$ 5.2
Operating	$ 5.2
Operating expenses
Lessee, Lease, Description [Line Items]
Operating lease expenses		502.9	[1]	451.5	401.7
Selling, general and administrative expenses
Lessee, Lease, Description [Line Items]
Operating lease expenses		$ 13		$ 10.5	$ 9.3
[1]Includes an out-of-period adjustment of $5.2 million recorded in the first quarter of 2023 related to variable billboard property lease expenses

Leases Minimum rental payments

Leases Minimum rental payments under operating leases (Details) $ in Millions	Dec. 31, 2023 USD ($)
Lessee, Lease, Description [Line Items]
2024	$ 275.2
2025	264.2
2026	239.9
2027	218.3
2028	178.5
2029 and thereafter	1,146.9
Lessee, Operating Lease, Liability, to be Paid	2,323
Less: Interest	724.7
Present value of lease liabilities	1,598.3	[1]
Canadian Business
Lessee, Lease, Description [Line Items]
Present value of lease liabilities	$ 85.4
[1] Excludes minimum rental payments to be made in connection with $85.4 million of lease liabilities reclassified to Liabilities held for sale

Leases - Narrative (Details)

Leases - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Lessee, Lease, Description [Line Items]
Rental income	$ 1,349.3	$ 1,321.1	$ 1,141.1

Leases Minimum rental payment_2

Leases Minimum rental payments to be received (Details) $ in Millions	Dec. 31, 2023 USD ($)
Leases [Abstract]
2024	$ 521.8
2025	28.8
2026	6.5
2027	2.3
2028	2
2029 and thereafter	10
Total minimum payments	$ 571.4	[1]
[1] Excludes an immaterial amount of rental payments to be received under non-cancellable operating leases related to amounts reclassified to Assets held for sale

Asset Retirement Obligation - N

Asset Retirement Obligation - Narrative (Details)	12 Months Ended
	Dec. 31, 2023
Asset Retirement Obligation [Line Items]
Asset Retirement Obligation, Expected Term	50 years
Asset Retirement Obligations, Description	The obligation is calculated based on the assumption that all of our advertising structures will be removed within the next 50 years.

Asset Retirement Obligation - S

Asset Retirement Obligation - Schedule of Change in Asset Retirement Obligation (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023		Dec. 31, 2022	Dec. 31, 2021
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]
Beginning of period	$ 37.8		$ 36.4
Accretion expense	3.1		2.8	$ 2.7
Additions	0.2		0.8
Liabilities settled	(8.2)	[1]	(1.9)
Foreign currency translation adjustments	0.1		(0.3)
End of period	33		37.8	$ 36.4
Asset Retirement Obligation [Line Items]
Liabilities reclassified to assets held for sale	8.2	[1]	$ 1.9
Canadian Business
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]
Liabilities settled	(5)
End of period	5
Asset Retirement Obligation [Line Items]
Liabilities reclassified to assets held for sale	$ 5
[1] In 2023, includes $5.0 million of liabilities reclassified to Liabilities held for sale

Related Party Transactions - Na

Related Party Transactions - Narrative (Details) $ in Millions	12 Months Ended
	Dec. 31, 2023 USD ($) joint_venture Displays		Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Jan. 18, 2033 USD ($)	Jan. 18, 2023 USD ($)
Related Party Transaction [Line Items]
Lessee, Operating Lease, Liability, to be Paid	$ 2,323
Operating lease assets	1,591.9	[1]	$ 1,562.6
Short-term operating lease liabilities	180.9	[1]	188.1
Operating lease liabilities	1,417.4	[1]	1,369
Billboard	1,444.9		1,384.7	$ 1,182.3
Management fee revenue	4.9		8.6	6.3
Other Assets
Related Party Transaction [Line Items]
Equity method investments	$ 8.2		12.2
Minimum
Related Party Transaction [Line Items]
Lessee, Operating Lease, Term of Contract	1 month
Minimum | 2 Times Square And 1600 Broadway
Related Party Transaction [Line Items]
Lessee, Operating Lease, Liability to be Paid Annually						$ 1.8
Maximum | 2 Times Square And 1600 Broadway | Forecast
Related Party Transaction [Line Items]
Lessee, Operating Lease, Liability to be Paid Annually					$ 3.5
Operating expenses
Related Party Transaction [Line Items]
Operating lease expenses	$ 502.9	[2]	$ 451.5	$ 401.7
LA And Vancouver Joint Ventures
Related Party Transaction [Line Items]
Equity method investment ownership percentage	50%
Acquired businesses
Related Party Transaction [Line Items]
Equity method investment, number of investments | joint_venture	2
Equity Method Investment, number of displays | Displays	7
Transit shelter joint ventures
Related Party Transaction [Line Items]
Equity method investment, number of investments | joint_venture	2
Beneficial Owner
Related Party Transaction [Line Items]
Lessee, Operating Lease, Term of Contract						10 years
Lessee, Operating Lease, Liability to be Paid Annually Years One Through Five						$ 8.5
Lessee, Operating Lease, Liability To Be Paid Annually, Years Six Through Ten						12
Lessee, Operating Lease, Liability To Be Paid, Year Five						10
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Operating lease assets
Operating lease assets	$ 91.5
Short-term operating lease liabilities	$ 3.6
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Short-term operating lease liabilities
Operating lease liabilities	$ 92.1
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Operating lease liabilities
Beneficial Owner | Minimum
Related Party Transaction [Line Items]
Lessee, Operating Lease, Liability, to be Paid						22
Beneficial Owner | Maximum
Related Party Transaction [Line Items]
Lessee, Operating Lease, Liability, to be Paid						$ 100
Beneficial Owner | Revenues
Related Party Transaction [Line Items]
Billboard	$ 11.4
Beneficial Owner | Operating expenses
Related Party Transaction [Line Items]
Operating lease expenses	$ 11.5
[1] In 2023, in connection with the Transaction, Operating lease assets of $85.9 million was reclassified as Assets held for sale and Short-term operating lease liabilities of $15.1 million and Non-current Operating lease liabilities of $70.4 million were reclassified as Liabilities held for sale

Debt - Schedule of Debt Instrum

Debt - Schedule of Debt Instruments (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Nov. 21, 2023	Nov. 20, 2023
Debt Instrument [Line Items]
Short-term debt	$ 65	$ 30
Long-term debt, net	2,676.5	2,626
Total debt, net	$ 2,741.5	$ 2,656
Weighted average cost of debt	5.70%	5.20%
Term loan, due 2026
Debt Instrument [Line Items]
Maturity date	Nov. 18, 2026
Term loan, due 2026 | Secured debt
Debt Instrument [Line Items]
Long-term debt, net	$ 598.9	$ 598.6
Maturity date	Nov. 18, 2026	Nov. 18, 2026
6.250% senior unsecured notes, due 2025
Debt Instrument [Line Items]
Debt interest rate percentage			6.25%
6.250% senior unsecured notes, due 2025 | Senior unsecured notes
Debt Instrument [Line Items]
Debt interest rate percentage	6.25%	6.25%
Maturity date	Jun. 15, 2025	Jun. 15, 2025
5.000% senior unsecured notes, due 2027 | Senior unsecured notes
Debt Instrument [Line Items]
Debt interest rate percentage	5%	5%
Maturity date	Aug. 15, 2027	Aug. 15, 2027
4.250% senior unsecured notes, due 2029 | Senior unsecured notes
Debt Instrument [Line Items]
Debt interest rate percentage	4.25%	4.25%
Maturity date	Jan. 15, 2029	Jan. 15, 2029
4.625% senior unsecured notes, due 2030 | Senior unsecured notes
Debt Instrument [Line Items]
Debt interest rate percentage	4.625%	4.625%
Maturity date	Mar. 15, 2030	Mar. 15, 2030
Senior Secured Debt Due 2031 | Senior unsecured notes
Debt Instrument [Line Items]
Debt interest rate percentage	7.375%			7.375%
Senior Secured Debt Due 2031 | Secured debt
Debt Instrument [Line Items]
Maturity date	Feb. 15, 2031
Short-term debt | AR Facility
Debt Instrument [Line Items]
Credit facility, outstanding amount	$ 65	$ 30
Long-term debt
Debt Instrument [Line Items]
Debt issuance costs	(22.4)	(22.6)
Long-term debt | Senior unsecured notes
Debt Instrument [Line Items]
Long-term debt, net	1,650	2,050
Long-term debt | 6.250% senior unsecured notes, due 2025 | Senior unsecured notes
Debt Instrument [Line Items]
Long-term debt, net	0	400
Long-term debt | 5.000% senior unsecured notes, due 2027 | Senior unsecured notes
Debt Instrument [Line Items]
Long-term debt, net	650	650
Long-term debt | 4.250% senior unsecured notes, due 2029 | Senior unsecured notes
Debt Instrument [Line Items]
Long-term debt, net	500	500
Long-term debt | 4.625% senior unsecured notes, due 2030 | Senior unsecured notes
Debt Instrument [Line Items]
Long-term debt, net	500	500
Long-term debt | Senior Secured Debt Due 2031 | Senior unsecured notes
Debt Instrument [Line Items]
Long-term debt, net	$ 450	$ 0		$ 450

Debt - Narrative (Details) - De

Debt - Narrative (Details) - Debt Instruments $ in Millions		12 Months Ended
	Nov. 20, 2023 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Nov. 15, 2026	Nov. 21, 2023
Debt Instrument [Line Items]
Debt Covenant, covenant description		The terms of the Credit Agreement (and under certain circumstances, the agreements governing the AR Facility) require that we maintain a Consolidated Net Secured Leverage Ratio, which is the ratio of (i) our consolidated secured debt (less up to $150.0 million of unrestricted cash) to (ii) our Consolidated EBITDA (as defined in the Credit Agreement) for the trailing four consecutive quarters, of no greater than 4.5 to 1.0.
Debt Covenant, restricted cash limit		$ 150
Debt covenant, maximum consolidated total leverage ratio		6
Consolidated total leverage ratio		5.3
Deferred financing costs		$ 27.4
Long-term debt, net		2,676.5	$ 2,626
Loss on extinguishment of debt		8.1	0	$ 6.3
Level 2
Debt Instrument [Line Items]
Long-term debt at fair value		$ 2,700	$ 2,500
Term loan, due 2026
Debt Instrument [Line Items]
Maturity date		Nov. 18, 2026
Senior Secured Debt Due 2031 | Maximum
Debt Instrument [Line Items]
Redeemable percentage of outstanding debt instrument		100%
Senior Secured Debt Due 2031 | Maximum | Subsequent event
Debt Instrument [Line Items]
Redeemable percentage of outstanding debt instrument					40%
Senior Secured Debt Due 2031 | Minimum | Subsequent event
Debt Instrument [Line Items]
Percentage of debt outstanding					50%
6.250% senior unsecured notes, due 2025
Debt Instrument [Line Items]
Debt interest rate percentage						6.25%
Secured debt | Term loan, due 2026
Debt Instrument [Line Items]
Interest rate at period end		7.10%
Unamortized debt discount		$ 1.1
Maturity date		Nov. 18, 2026	Nov. 18, 2026
Long-term debt, net		$ 598.9	$ 598.6
Secured debt | Senior Secured Debt Due 2031
Debt Instrument [Line Items]
Maturity date		Feb. 15, 2031
Senior unsecured notes | Senior Secured Debt Due 2031
Debt Instrument [Line Items]
Debt interest rate percentage	7.375%	7.375%
Senior unsecured notes | 6.250% senior unsecured notes, due 2025
Debt Instrument [Line Items]
Maturity date		Jun. 15, 2025	Jun. 15, 2025
Debt interest rate percentage		6.25%	6.25%
Long-term debt | Senior Secured Debt Due 2031
Debt Instrument [Line Items]
Debt of first required payment	May 15, 2024
Long-term debt | Senior unsecured notes
Debt Instrument [Line Items]
Long-term debt, net		$ 1,650	$ 2,050
Long-term debt | Senior unsecured notes | Senior Secured Debt Due 2031
Debt Instrument [Line Items]
Long-term debt, net	$ 450	450	0
Long-term debt | Senior unsecured notes | 6.250% senior unsecured notes, due 2025
Debt Instrument [Line Items]
Long-term debt, net		$ 0	$ 400
Revolving credit facility
Debt Instrument [Line Items]
Debt Covenant, maximum consolidated net secured coverage ratio, REIT Election		4.5
Net secured leverage ratio		2

Debt - Narrative (Details) - Li

Debt - Narrative (Details) - Line of Credit Facility	1 Months Ended	3 Months Ended	5 Months Ended	7 Months Ended	12 Months Ended
	Jan. 31, 2024 USD ($)	Jun. 30, 2023 amendments	Jun. 14, 2023	Dec. 31, 2023 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Line of Credit Facility [Line Items]
Number Of Amendments to Credit Agreement | amendments		2
Repayments of Lines of Credit					$ 85,000,000	$ 0	$ 80,000,000
Revolving credit facility
Line of Credit Facility [Line Items]
Maximum borrowing capacity				$ 500,000,000	500,000,000
Commitment fee for unused commitments					$ 1,700,000	$ 1,600,000	$ 1,800,000
Credit facility, expiration date					Jun. 15, 2028	Nov. 18, 2024
Revolving credit facility | Maximum
Line of Credit Facility [Line Items]
Interest rate margins			1.75%	2.25%
Revolving credit facility | Minimum
Line of Credit Facility [Line Items]
Interest rate margins			1.25%	1.75%
Revolving credit facility | Long-term debt
Line of Credit Facility [Line Items]
Credit facility, outstanding amount				$ 0	$ 0
Letter of Credit sublimit to revolving credit facility
Line of Credit Facility [Line Items]
Letters of credit outstanding, amount				6,500,000	6,500,000
Letter of Credit
Line of Credit Facility [Line Items]
Maximum borrowing capacity				81,000,000	81,000,000
Letters of credit outstanding, amount				75,600,000	75,600,000
AR Facility
Line of Credit Facility [Line Items]
Maximum borrowing capacity				150,000,000	150,000,000
Commitment fee for unused commitments					$ 200,000	$ 300,000
Credit facility, expiration date					May 30, 2025
AR Facility | Subsequent event
Line of Credit Facility [Line Items]
Repayments of Lines of Credit	$ 10,000,000
AR Facility | Short-term debt
Line of Credit Facility [Line Items]
Credit facility, outstanding amount				65,000,000	$ 65,000,000	$ 30,000,000
Line of credit facility, remaining borrowing capacity				$ 85,000,000	$ 85,000,000
Borrowing rate				6.50%	6.50%
AR Securitization Facilities | Maximum
Line of Credit Facility [Line Items]
Debt instrument, collateral amount				$ 316,000,000	$ 316,000,000

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Loss - Schedule of Accumulated Other Comprehensive Income (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance		$ (9.1)	$ (4.4)	$ (18)
Other comprehensive income (loss) before reclassifications		3.3	(4.7)	13.1
Amortization of actuarial losses reclassified to net income				0.5
Total other comprehensive income (loss), net of tax		3.3	(4.7)	13.6
Ending balance		(5.8)	(9.1)	(4.4)
Cumulative Translation Adjustments
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance		(9.2)	(1.3)	(1.3)
Other comprehensive income (loss) before reclassifications		3.1	(7.9)	0
Amortization of actuarial losses reclassified to net income				0
Total other comprehensive income (loss), net of tax		3.1	(7.9)	0
Ending balance		(6.1)	(9.2)	(1.3)
Net Actuarial Gain (Loss)
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance		0.1	(2.7)	(11.1)
Other comprehensive income (loss) before reclassifications		0.2	2.8	7.9
Amortization of actuarial losses reclassified to net income	[1]			0.5
Total other comprehensive income (loss), net of tax		0.2	2.8	8.4
Ending balance		0.3	0.1	(2.7)
Loss on Interest Rate Cash Flow Swaps
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance		0	(0.4)	(5.6)
Other comprehensive income (loss) before reclassifications		0	0.4	5.2
Amortization of actuarial losses reclassified to net income				0
Total other comprehensive income (loss), net of tax		0	0.4	5.2
Ending balance		$ 0	$ 0	$ (0.4)
[1] See Note 14. Retirement Benefits to the Consolidated Financial Statements for additional details of items reclassified from accumulated other comprehensive loss to net income.

Accumulated Other Comprehensi_4

Accumulated Other Comprehensive Loss -Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Accumulated Other Comprehensive Income [Abstract]
Tax provision on net acturial gain (loss) included in comprehensive income (loss)	$ 0	$ 1,000,000	$ 2,900,000

Equity (Details)

Equity (Details) - USD ($) $ / shares in Units, $ in Millions				12 Months Ended
	Mar. 28, 2024	Mar. 01, 2024	Feb. 21, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Nov. 21, 2017
Class of Stock [Line Items]
Common stock authorized (shares)				450,000,000	450,000,000
Common stock, par value per share ($ per share)				$ 0.01	$ 0.01	$ 0.01	$ 0.01
Common stock issued (shares)				165,052,191	164,200,000
Common stock outstanding (shares)				165,052,191	164,200,000
Preferred stock authorized (shares)				50,000,000	50,000,000
Preferred stock, par value per share ($ per share)				$ 0.01
Series A Preferred Stock issued (shares)				125,000	100,000
Series A Preferred Stock outstanding (shares)				125,000	100,000
Series A Preferred Stock, par value per share ($ per share)				$ 0.01	$ 0.01	$ 0.01	$ 0.01
Series A Preferred Stock dividend rate (%)				7%	7%	7%
Dividend Period				12 months
Convertible Preferred Stock, Terms of Conversion				The Series A Preferred Stock is convertible at the option of any holder at any time into shares of our common stock at an initial conversion price of $16.00 per share and an initial conversion rate of 62.50 shares of our common stock per share of Series A Preferred Stock, subject to certain anti-dilution adjustments and a share cap as set forth in the Articles. Subject to certain conditions set forth in the Articles (including a change of control), each of the Company and the holders of the Series A Preferred Stock may convert or redeem the Series A Preferred Stock at the prices set forth in the Articles, plus any accrued and unpaid dividends.
Series A Preferred Stock, conversion price ($ per share)				$ 16
Series A Preferred Stock, common shares issuable (shares)				62.50
Dividends					$ (197.3)	$ (29.2)
Payments of Dividends				$ 207	$ 205.8	$ 57.5
Dividends declared per common share ($ per share)				$ 1.20	$ 1.20	$ 0.20
Subsequent event
Class of Stock [Line Items]
Dividends declared per common share ($ per share)			$ 0.30
Ordinary Dividend | Subsequent event
Class of Stock [Line Items]
Dividends Payable, Date Declared			Feb. 21, 2024
Dividends Payable, Date to be Paid	Mar. 28, 2024
Dividends Payable, Date of Record		Mar. 01, 2024
At-the-market equity offering program
Class of Stock [Line Items]
ATM Program, authorized amount outstanding				$ 232.5				$ 300
Shares issued under the ATM Program (shares)				0
Series A Preferred Stock
Class of Stock [Line Items]
Series A Preferred Stock, common shares issuable (shares)				7,800,000
Dividends				$ (8.8)	$ (12)	$ (28)
Payments of Dividends				$ 8.8
Maximum
Class of Stock [Line Items]
Dividend Percentage In Excess of Required Distributions For A REIT				5%
Common Stock
Class of Stock [Line Items]
Common stock outstanding (shares)				165,100,000	164,200,000	145,600,000	144,500,000
Conversion of Stock (Shares)					17,400,000
Series A Preferred Stock
Class of Stock [Line Items]
Series A Preferred Stock outstanding (shares)				100,000	100,000	400,000	400,000
Dividends					$ 3.2
Stock Redeemed or Called During Period, Shares					(300,000)

Revenues Disaggregation of Reve

Revenues Disaggregation of Revenue (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disaggregation of Revenue [Line Items]
Billboard	$ 1,444.9	$ 1,384.7	$ 1,182.3
Transit	375.7	387.4	281.6
Revenues	1,820.6	1,772.1	1,463.9
Static displays
Disaggregation of Revenue [Line Items]
Billboard	948	936.9	829.8
Transit	191.8	212.6	170.5
Digital displays
Disaggregation of Revenue [Line Items]
Billboard	441.7	400.8	308.1
Transit	146.6	139.1	81.3
Other
Disaggregation of Revenue [Line Items]
Billboard	55.2	47	44.4
Transit	31.1	29.4	26.2
Transit
Disaggregation of Revenue [Line Items]
Transit	369.5	381.1	278
Other Revenues
Disaggregation of Revenue [Line Items]
Transit	$ 6.2	$ 6.3	$ 3.6

Revenues -Narrative (Details)

Revenues -Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Revenue from Contract with Customer [Abstract]
Rental income	$ 1,349.3	$ 1,321.1	$ 1,141.1
Operating Lease, Lease Income, Statement of Income or Comprehensive Income [Extensible Enumeration]	Revenues	Revenues	Revenues

Revenues Revenue from External

Revenues Revenue from External Customers by Geographic Areas (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disaggregation of Revenue [Line Items]
Billboard		$ 1,444.9	$ 1,384.7	$ 1,182.3
Transit and other		375.7	387.4	281.6
Revenues		1,820.6	1,772.1	1,463.9
United States
Disaggregation of Revenue [Line Items]
Billboard		1,369.7	1,308.8	1,116.1
Revenues	[1]	1,728.5	1,680.2	1,385.6
Canada
Disaggregation of Revenue [Line Items]
Revenues	[1]	92.1	91.9	78.3
Transit and other
Disaggregation of Revenue [Line Items]
Transit and other		369.5	381.1	278
Transit and other | United States
Disaggregation of Revenue [Line Items]
Transit and other		352.6	365.1	265.9
Other Revenues
Disaggregation of Revenue [Line Items]
Transit and other		6.2	6.3	3.6
Other Revenues | United States
Disaggregation of Revenue [Line Items]
Transit and other		$ 6.2	$ 6.3	$ 3.6
[1] Revenues classifications are based on the geography of the advertising.

Acquisitions and Dispositions -

Acquisitions and Dispositions -Narrative (Details) $ in Millions, $ in Millions		3 Months Ended			12 Months Ended
	Oct. 22, 2024 CAD ($)	Dec. 31, 2023 USD ($) numberOfRealEstateProperties		Jun. 30, 2022 USD ($) Displays	Dec. 31, 2023 USD ($)		Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Oct. 22, 2023 CAD ($)
Business Acquisitions and Dispositions [Line Items]
Noncash or part noncash acquisition, value of assets acquired					$ 33.7		$ 353.9	$ 136.5
Net gain on dispositions					(14.2)		0.2	$ (4.5)
Operating lease assets		$ 1,591.9	[1]		1,591.9	[1]	1,562.6
Operating lease liabilities		1,417.4	[1]		1,417.4	[1]	$ 1,369
Forecast
Business Acquisitions and Dispositions [Line Items]
Gain (loss) on contract termination	$ 20
Canadian Business
Business Acquisitions and Dispositions [Line Items]
Operating lease assets		85.9			85.9
Operating lease liabilities		70.4			70.4
Canadian Business | Disposal Group, Disposed of by Sale, Not Discontinued Operations
Business Acquisitions and Dispositions [Line Items]
Selling Price									$ 410
Los Angeles California
Business Acquisitions and Dispositions [Line Items]
Net gain on dispositions					12.4
Operating lease assets		2.5			2.5
Operating lease liabilities		2.5			$ 2.5
Proceeds from Sale of Property, Plant, and Equipment		$ 15.5
Sale Leaseback Transaction, Lease Term		5 years
Number Of Real Estate Properties Sold | numberOfRealEstateProperties		3
Acquired businesses
Business Acquisitions and Dispositions [Line Items]
Noncash or part noncash acquisition, value of assets acquired				$ 185
Number of displays | Displays				950
Digital displays | Acquired businesses
Business Acquisitions and Dispositions [Line Items]
Number of displays | Displays				21
[1] In 2023, in connection with the Transaction, Operating lease assets of $85.9 million was reclassified as Assets held for sale and Short-term operating lease liabilities of $15.1 million and Non-current Operating lease liabilities of $70.4 million were reclassified as Liabilities held for sale

Acquisitions and Dispositions (

Acquisitions and Dispositions (Details) - USD ($) $ in Millions	Dec. 31, 2023		Dec. 31, 2022	Dec. 31, 2021
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Receivables, less allowances	$ 287.6		$ 315.5
Other current assets	15.7		5.6
Current assets held for sale	34.6		0
Property and equipment, net	657.8		699.8
Goodwill	2,006.4		2,076.4	$ 2,077.8
Intangible assets	695.4	[1]	858.5
Operating lease assets	1,591.9	[2]	1,562.6
Other assets	19.5		39.1
Total assets held for sale	248.9
Current liabilities held for sale	24.1		0
Deferred income tax liabilities, net	0		15.2
Asset retirement obligation	33		37.8	$ 36.4
Operating lease liabilities	1,417.4	[2]	$ 1,369
Total liabilities held for sale	115
Canadian Business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Receivables, less allowances	26.7
Other current assets	7.9
Property and equipment, net	39.9
Goodwill	22.9
Intangible assets	53
Operating lease assets	85.9
Other assets	12.6
Deferred income tax liabilities, net	15.5
Asset retirement obligation	5
Operating lease liabilities	$ 70.4
[1] In 2023, in connection with the Transaction, Intangible assets, net, of $53.0 million was reclassified as Assets held for sale In 2023, in connection with the Transaction, Operating lease assets of $85.9 million was reclassified as Assets held for sale and Short-term operating lease liabilities of $15.1 million and Non-current Operating lease liabilities of $70.4 million were reclassified as Liabilities held for sale

Stock-Based Compensation - Narr

Stock-Based Compensation - Narrative (Details) - USD ($) $ in Millions		12 Months Ended
	Jun. 06, 2023	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
GrantValueBasisOfStockBasedCompensationAwardPercentageOfCurrentBaseSalary				100%
Unrecognized compensation costs related to non-vested RSUs and PSUs		$ 26.6
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Additional Shares Authorized	6,475,000
Restricted Stock Units and Performance Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected recognition period for non-vested RSUs and PSUs		1 year 7 months 6 days
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage Of Performance-Based Share Based Compensation Award With Market Condition and Service Condition				40%
Restricted Stock Units (RSUs) | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award Vesting Period		3 years
Performance Shares (PRSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance Condition Period		1 year
Percentage Of Performance-Based Share Based Compensation Award With Market Condition and Service Condition				60%
Performance Shares (PRSUs) | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Payout on stock-based compensation awards		0%
Performance Shares (PRSUs) | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Payout on stock-based compensation awards		120%
Performance and Market Condition Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance Condition Period				2 years
Performance and Market Condition Shares | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Payout on stock-based compensation awards				0%
Performance and Market Condition Shares | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Payout on stock-based compensation awards				200%
Omnibus Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (shares)		19,575,000
Omnibus Stock Incentive Plan | Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
RSUs and PSUs, Vested in Period, Fair Value		$ 36.2	$ 25.9	$ 22.6

Stock-Based Compensation - Sche

Stock-Based Compensation - Schedule of Compensation Cost for Share-based Payment Arrangements, Allocation of Share-based Compensation Costs by Plan (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Tax benefit	$ (1)	$ (1.6)	$ (1.4)
Stock-based compensation expense, net of tax	27.4	32.2	27.2
Restricted Stock Units and Performance Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense, before income taxes	$ 28.4	$ 33.8	$ 28.6

Stock-Based Compensation - Sc_2

Stock-Based Compensation - Schedule of Unvested Restricted Stock Units and Performance Restricted Share Units Roll Forward (Details) - Omnibus Stock Incentive Plan	12 Months Ended
	Dec. 31, 2023 $ / shares shares
Restricted Stock Units and Performance Restricted Stock Units
RSUs and PRSUs, Nonvested, Number of Shares
Non-vested RSUs and PRSUs, beginning balance (shares) | shares	2,644,039
Non-vested RSUs and PRSUs, ending balance (shares) | shares	2,781,836
Weighted Average Per Share Grant Date Fair Market Value
Weighted Average Grant Date Fair Value, Non-Vested, Beginning Balance ($ per share) | $ / shares	$ 24.28
Weighted Average Grant Date Fair Value, Non-Vested, Ending Balance ($ per share) | $ / shares	$ 21.10
Restricted Stock Units (RSUs)
RSUs and PRSUs, Nonvested, Number of Shares
Grants (shares) | shares	1,109,485
Vested (shares) | shares	(941,942)
Forfeited (shares) | shares	(97,480)
Weighted Average Per Share Grant Date Fair Market Value
Weighted Average Grant Date Fair Value, Grants in Period ($ per share) | $ / shares	$ 19.03
Weighted Average Grant Date Fair Value, Vested ($ per share) | $ / shares	24.56
Weighted Average Grant Date Fair Value, Forfeited ($ per share) | $ / shares	$ 21.25
Performance Shares (PRSUs)
RSUs and PRSUs, Nonvested, Number of Shares
Grants (shares) | shares	619,687
Vested (shares) | shares	(516,609)
Forfeited (shares) | shares	(35,344)
Weighted Average Per Share Grant Date Fair Market Value
Weighted Average Grant Date Fair Value, Grants in Period ($ per share) | $ / shares	$ 20.64
Weighted Average Grant Date Fair Value, Vested ($ per share) | $ / shares	25.36
Weighted Average Grant Date Fair Value, Forfeited ($ per share) | $ / shares	$ 21.50

Retirement Benefits - Narrative

Retirement Benefits - Narrative (Details) $ in Millions	12 Months Ended
	Dec. 31, 2023 USD ($) plan	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Defined Benefit Plan Disclosure [Line Items]
Number of Defined Benefit Pension Plans | plan	2
Pension Plan, average earnings period	5 years
Pension Plan, vesting period	2 years
Pension Plan, accumulated benefit obligation	$ 25.1	$ 45.2
Multiemployer Plan, employer contribution, cost	3.3	3.5	$ 3
Defined Contribution Plan, employer contributions	$ 8.6	$ 8.3	$ 6.4
Expected return on plan assets	Total other comprehensive income (loss), net of tax	Total other comprehensive income (loss), net of tax	Total other comprehensive income (loss), net of tax
Fixed income securities
Defined Benefit Plan Disclosure [Line Items]
Pension Plan, asset allocations	82%
Equity securities
Defined Benefit Plan Disclosure [Line Items]
Pension Plan, asset allocations	17%

Retirement Benefits - Schedule

Retirement Benefits - Schedule of Changes in Projected Benefit Obligations (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation, beginning of year	$ 47	$ 65.3	$ 71.3
Service cost	0	0	0.1
Interest cost	$ 2.1	$ 1.9	$ 1.8
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Interest Cost, Statement of Income or Comprehensive Income [Extensible Enumeration]	Selling, general and administrative	Selling, general and administrative	Selling, general and administrative
Actuarial gain	$ (0.3)	$ (14.8)	$ (5.2)
Settlements paid	(20.2)	0	0
Benefits paid	(2)	(2.2)	(2.9)
Cumulative translation adjustments	0.6	(3.2)	0.2
Benefit obligation, end of year	$ 27.2	$ 47	$ 65.3

Retirement Benefits - Schedul_2

Retirement Benefits - Schedule of Changes in Fair Value of Plan Assets (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets, beginning of year	$ 55.5	$ 69.5
Actual return on plan assets	2.9	(8.2)
Settlements paid	(20.2)	0
Benefits paid	(2)	(2.2)
Cumulative translation adjustments	0.9	(3.6)
Fair value of plan assets, end of year	$ 37.1	$ 55.5

Retirement Benefits - Schedul_3

Retirement Benefits - Schedule of Amounts Recognized in Balance Sheet (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position [Abstract]
Funded status, end of year	$ 9.9	$ 8.5
Assets held for sale	10.4	0
Other assets	0	8.5
Other liabilities	(0.5)	0
Net amounts recognized	$ 9.9	$ 7.9

Retirement Benefits - Schedul_4

Retirement Benefits - Schedule of Net Period Benefit Cost Not yet Recognized (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Defined Benefit Plan Disclosure [Line Items]
Net actuarial gain	$ 0.4	$ 0.2
Deferred income taxes	(0.1)	(0.1)
Net amount recognized in accumulated other comprehensive income	(5.8)	(9.1)	$ (4.4)	$ (18)
Net Actuarial Gain (Loss)
Defined Benefit Plan Disclosure [Line Items]
Net amount recognized in accumulated other comprehensive income	$ 0.3	$ 0.1	$ (2.7)	$ (11.1)

Retirement Benefits - Schedul_5

Retirement Benefits - Schedule of Accumulated Benefit Obligations in Excess of Fair Value of Plan Assets (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets [Abstract]
Projected benefit obligation	$ 27.2	$ 47
Accumulated benefit obligation	25.1	45.2
Fair value of plan assets	$ 37.1	$ 55.5	$ 69.5

Retirement Benefits - Schedul_6

Retirement Benefits - Schedule of Components of Net Periodic Pension Costs (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Defined Benefit Plan, Net Periodic Pension Cost [Abstract]
Service cost		$ 0	$ 0	$ 0.1
Interest cost		$ 2.1	$ 1.9	$ 1.8
Expected return on plan assets		Total other comprehensive income (loss), net of tax	Total other comprehensive income (loss), net of tax	Total other comprehensive income (loss), net of tax
Expected return on plan assets		$ (2.6)	$ (2.8)	$ (2.6)
Amortization of actuarial losses	[1]	0	0	0.6
Settlement gain		(0.5)	0	0
Net periodic pension cost		$ (1)	$ (0.9)	$ (0.1)
[1] Reflects amounts reclassified from accumulated other comprehensive income (loss) to net income.

Retirement Benefits - Schedul_7

Retirement Benefits - Schedule of Amounts Recognized in Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Defined Benefit Plan Disclosure [Line Items]
Actuarial gain	$ 0.7
Settlement cost	(0.5)
Total other comprehensive income (loss), net of tax	3.3	$ (4.7)	$ 13.6
Net Actuarial Gain (Loss)
Defined Benefit Plan Disclosure [Line Items]
Total other comprehensive income (loss), net of tax	$ 0.2	$ 2.8	$ 8.4

Retirement Benefits - Schedul_8

Retirement Benefits - Schedule of Assumptions Used (Details)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Defined Benefit Plan, Weighted Average Assumptions Used to Determine Benefit Obligation [Abstract]
Discount rate	4.80%	5%
Rate of compensation increase	3.30%	3.30%
Defined Benefit Plan, Weighted Average Assumptions Used to Determine Net Periodic Benefit Cost [Abstract]
Discount rate	5%	3%
Expected long-term return on plan assets	4.20%	5.20%
Rate of compensation increase	3.30%	3.30%

Retirement Benefits - Schedul_9

Retirement Benefits - Schedule of Fair Value Measurements (Details) - USD ($) $ in Millions		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of plan assets		$ 37.1	$ 55.5	$ 69.5
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of plan assets		1.8	1.5
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of plan assets		0	0
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of plan assets		0	22
Total assets in fair value hierarchy | Total
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of plan assets		1.8	23.5
Corporate bonds | Total
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of plan assets	[1]	0.6	0.5
Corporate bonds | Level 1 | Fixed income securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of plan assets	[1]	0.6	0.5
Corporate bonds | Level 2 | Fixed income securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of plan assets		0	0
Corporate bonds | Level 3 | Fixed income securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of plan assets		0	0
U.S. equity | Total
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of plan assets		0.8	0.7
U.S. equity | Level 1 | Equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of plan assets		0.8	0.7
U.S. equity | Level 2 | Equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of plan assets		0	0
U.S. equity | Level 3 | Equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of plan assets		0	0
International equity | Total
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of plan assets		0.3	0.3
International equity | Level 1 | Equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of plan assets		0.3	0.3
International equity | Level 2 | Equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of plan assets		0	0
International equity | Level 3 | Equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of plan assets		0	0
Insurance contracts | Total
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of plan assets			22
Insurance contracts | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of plan assets			0
Insurance contracts | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of plan assets			0
Insurance contracts | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of plan assets		0	22	$ 29.4
Common collective funds measured at NAV | Common collective funds measured at net asset value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of plan assets		35.3	$ 32
Cash and Cash Equivalents | Total
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of plan assets		0.1
Cash and Cash Equivalents | Level 1 | Fixed income securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of plan assets		0.1
Cash and Cash Equivalents | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of plan assets		0
Cash and Cash Equivalents | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of plan assets		$ 0
[1] Securities of diverse industries, substantially all investment grade.

Retirement Benefits - Schedu_10

Retirement Benefits - Schedule of Significant Changes in Level 3 Plan Assets (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023		Dec. 31, 2022	Dec. 31, 2021
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair value of plan assets, beginning of year	$ 55.5		$ 69.5
Payments	(2)		(2.2)
Actuarial gain	(0.3)		(14.8)	$ (5.2)
Interest income	2.9		(8.2)
Cumulative translation adjustments	0.9		(3.6)
Fair value of plan assets, end of year	37.1		55.5	69.5
Level 3
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair value of plan assets, beginning of year	22
Settlement	(22)	[1]	0
Payments	0		(1.9)
Actuarial gain	0		(4.6)
Interest income	0		0.8
Cumulative translation adjustments	0		(1.7)
Fair value of plan assets, end of year	0		22
Insurance contracts | Level 3
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair value of plan assets, beginning of year	22		29.4
Fair value of plan assets, end of year	$ 0		$ 22	$ 29.4
[1]In the fourth quarter of 2023, insurance contracts that were part of the assets of the Plan were converted into buy-out annuities with third-party insurance companies. Former employees now collect their benefit from the third-party insurance companies and the Plan no longer has liability associated with those former employees.

Retirement Benefits - Schedu_11

Retirement Benefits - Schedule of Estimated Future Benefit Payments (Details) $ in Millions	Dec. 31, 2023 USD ($)
Retirement Benefits [Abstract]
2024	$ 0.9
2025	0.8
2026	1
2027	1.1
2028	1.4
2029-2033	$ 8.1

Income Taxes - Narrative (Detai

Income Taxes - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Operating Loss Carryforwards [Line Items]
Cash paid for income taxes	$ 6.7	$ 3.3	$ 1.7
Effective income tax rate	0.90%	6%	10.80%
Operating loss carryforwards	$ 22.6
Undistributed Earnings of Foreign Subsidiaries	4.4	$ 2.3
Unrecognized tax benefits	0.3
Unrecognized tax benefits that would impact effective tax rate	$ 0.2
Minimum
Operating Loss Carryforwards [Line Items]
Tax years subject to examination	2020
Maximum
Operating Loss Carryforwards [Line Items]
Federal statutory income tax rate	21%
New York State Division of Taxation and Finance | Minimum
Operating Loss Carryforwards [Line Items]
Income Tax Examination, Year under Examination	2019
New York State Division of Taxation and Finance | Maximum
Operating Loss Carryforwards [Line Items]
Income Tax Examination, Year under Examination	2021

Income Taxes - Schedule of Inco

Income Taxes - Schedule of Income (Loss) before Income Tax, Domestic and Foreign (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest [Abstract]
United States	$ (436.4)	$ 148	$ 32.6
Foreign	11.8	7.7	(1)
Income (loss) before benefit (provision) for income taxes and equity in earnings of investee companies	$ (424.6)	$ 155.7	$ 31.6

Income Taxes - Book Income to R

Income Taxes - Book Income to REIT Taxable Income Reconciliation (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023		Dec. 31, 2022	Dec. 31, 2021
Book Income to REIT Taxable Income Reconciliation [Line Items]
Income (loss) before provision for income taxes and equity in earnings of investee companies	$ (424.6)		$ 155.7	$ 31.6
Book/tax differences - Depreciation	27.9		33.7	(2)
Book/tax differences - Amortization	(13.6)		(13.3)	(6.1)
Book/tax differences - Dividend from foreign subsidiary	2.1		2.1	1.4
Book/tax differences - Stock-based compensation	(0.9)		3.8	5
Book/tax differences - Deferred gain for tax	(6.8)		(1)	(3)
Book/tax differences - Investments in joint ventures	5.5		9.9	5
Book/tax differences - Executive compensation	11.2		9.4	6.3
Book/tax differences - Lease expense	8.4		4.3	5.7
Book/tax differences - Provision for doubtful accounts	1.5		3.3	(7.5)
Book/tax differences - Interest	0		(11.2)	13.8
Book/tax differences - Impairment charges	388.2	[1]	0	0
Book/tax differences - Other	13.6		1.5	4.3
REIT taxable income (estimated)	163.9		213.4	76.4
Taxable REIT Subsidiaries
Book Income to REIT Taxable Income Reconciliation [Line Items]
Income (loss) before provision for income taxes and equity in earnings of investee companies	151.4		15.2	21.9
Qualified REIT Subsidiaries
Book Income to REIT Taxable Income Reconciliation [Line Items]
Income (loss) before provision for income taxes and equity in earnings of investee companies	$ (273.2)		$ 170.9	$ 53.5
[1]Impairment charges related to our U.S. transit business

Income Taxes - Schedule of Comp

Income Taxes - Schedule of Components of Income Tax Provision (Benefit) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Current Income Tax (Expense) Benefit, Continuing Operations [Abstract]
Federal	$ 0	$ (0.1)	$ 0.5
State and local	(1)	(1)	(0.7)
Foreign	(3.1)	(3.6)	(1.1)
Current income tax provision	(4.1)	(4.7)	(1.3)
Federal	0	(5)	3.2
State and local	0	(1.7)	1.1
Foreign	0.1	2	0.4
Deferred tax benefit (provision)	0.1	(4.7)	4.7
Benefit (provision) for income taxes	$ (4)	$ (9.4)	$ 3.4

Income Taxes - Schedule of Effe

Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023		Dec. 31, 2022	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Benefit (provision) for income taxes on income at U.S. statutory rate	$ 89.2		$ (32.7)	$ (6.6)
REIT dividends paid deduction	24.2		35.9	11.3
State and local taxes, net of federal tax benefit	(1)		(2.9)	0.1
Effect of foreign operations	(1)		(0.5)	(0.9)
Impairment charges	(110.6)	[1]	0	0
Other, net	(4.8)		(9.2)	(0.5)
Benefit (provision) for income taxes	$ (4)		$ (9.4)	$ 3.4
[1]Primarily a permanent book/tax difference for impairment charges related to our U.S. transit business (

Income Taxes - Schedule of Defe

Income Taxes - Schedule of Deferred Tax Asset and Liability (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Deferred Income Tax Assets:
Provision for expenses and losses	$ 6.6	$ 3.5
Postretirement and other employee benefits	2.2	2.5
Tax credit and loss carryforwards	5.8	5.9
Deferred Tax Assets, Property, Plant and Equipment	2	0.2
Total deferred income tax assets	16.6	12.1
Valuation allowance	(16.6)	(11.9)
Deferred income tax assets, net	0	0.2
Deferred Income Tax Liabilities:
Property, equipment and intangible assets	(12.8)	(13)
Postretirement and other employee benefits	(2.5)	(2.2)
Other	(0.2)	(0.2)
Total deferred income tax liabilities	(15.5)	(15.4)
Deferred income tax liabilities, net	$ (15.5)	$ (15.2)

Earnings Per Share ("EPS") (Det

Earnings Per Share ("EPS") (Details) - USD ($) shares in Millions, $ in Millions		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Net income (loss) attributable to OUTFRONT Media Inc.		$ (430.4)	$ 147.9	$ 35.6
Payments of Dividends		207	205.8	57.5
Net Income (Loss) Available to Common Stockholders, Basic		(439.2)	135.8	7.5
Net Income (Loss) Available to Common Stockholders, Diluted		$ (439.2)	$ 135.8	$ 7.5
Basic (shares)		164.9	161.1	145.4
Dilutive potential shares from grants of RSUs, PRSUs and stock options	[1]	0	0.7	0.7
Diluted (shares)	[1],[2],[3]	164.9	161.8	146.1
Series A Preferred Stock
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Payments of Dividends		$ 8.8	$ 12	$ 28
Non-controlling interests
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Payments of Dividends		$ 0	$ 0.1	$ 0.1
Stock Compensation Plan
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Antidilutive securities excluded from EPS calculation (shares)		1.8	0.7	0.1
Series A Preferred Stock
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Antidilutive securities excluded from EPS calculation (shares)		7.8	10.6	25
Non-controlling interests
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Antidilutive securities excluded from EPS calculation (shares)			0.1	0.5
[1] The potential impact of an aggregate 1.8 million granted RSUs, PRSUs and stock options for 2023, 0.7 million granted RSUs, PRSUs and stock options for 2022 and 0.1 million granted RSUs, PRSUs and stock options for 2021 was antidilutive. The potential impact of 7.8 million shares of our common stock issuable upon conversion of our Series A Preferred Stock in 2023, 10.6 million shares of our common stock issuable upon conversion of our Series A Preferred Stock in 2022 and 25.0 million shares of our common stock issuable upon conversion of our Series A Preferred Stock in 2021 was antidilutive. The potential impact of 0.1 million shares of Class A equity interests of Outfront Canada in 2022 and 0.5 million shares of Class A equity interests of Outfront Canada in 2021 was antidilutive.

Commitment and Contingencies -

Commitment and Contingencies - Contractual Obligation, Fiscal Year Maturity Schedule (Details) - Guaranteed Minimum Annual Payments $ in Millions	Dec. 31, 2023 USD ($)
Other Commitment, Fiscal Year Maturity [Abstract]
2024	$ 199.3
2025	205.9
2026	205.8
2027	193.6
2028	196.3
2029 and thereafter	367.9
Total minimum payments(a)	1,368.8	[1]
Canadian Business
Other Commitment, Fiscal Year Maturity [Abstract]
Total minimum payments(a)	$ 11.9
[1] Excludes guaranteed minimum annual payments of $11.9 million in connection with the Transaction. (See Note 12. Acquisitions and Dispositions : Dispositions : Canadian Business .)

Commitment and Contingencies _2

Commitment and Contingencies - Narrative (Details)			3 Months Ended	7 Months Ended	12 Months Ended	60 Months Ended	80 Months Ended
	Jul. 29, 2021 Displays	Jul. 28, 2021	Dec. 31, 2023 USD ($) Displays	Dec. 31, 2020 USD ($)	Dec. 31, 2023 USD ($) Displays	Dec. 31, 2026	Apr. 01, 2028 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Other Commitments [Line Items]
Equipment Deployment Costs Percentage				30%
MTA Equipment Deployment Costs | $			$ 1,100,000		$ 1,100,000			$ 426,800,000	$ 348,000,000
Metropolitan Transportation Authority ("MTA")
Other Commitments [Line Items]
Equipment Deployment Costs Percentage				70%
MTA Agreement
Other Commitments [Line Items]
Customer contract term	13 years	10 years
Customer Contract Term Extension Option	5 years
MTA Agreement | Subsequent event
Other Commitments [Line Items]
Other Commitment Percentage						65%
Additional Equipment Deployment Costs Percentage							2.50%
Maximum
Other Commitments [Line Items]
Customer contract term					1 year
Maximum | Metropolitan Transportation Authority ("MTA")
Other Commitments [Line Items]
MTA Equipment Deployment Costs | $				$ 50,700,000
Maximum | MTA Agreement | Subsequent event
Other Commitments [Line Items]
Decrease In Revenues Percentage							5%
Minimum
Other Commitments [Line Items]
Customer contract term					28 days
Minimum | Subsequent event
Other Commitments [Line Items]
Recovery of Direct Costs | $							$ 0
Standalone letters of credit and sublimit to revolving credit facility
Other Commitments [Line Items]
Letters of credit outstanding, amount | $			82,100,000		$ 82,100,000
Surety Bond
Other Commitments [Line Items]
Surety Bonds Outstanding | $			$ 172,800,000		$ 172,800,000
MTA digital advertising screens on subway and train platforms and entrances
Other Commitments [Line Items]
Number of displays | Displays	5,433		5,121		5,121
MTA smaller-format digital advertising screens rolling stock
Other Commitments [Line Items]
Number of displays | Displays	15,896		9,674		9,674
MTA communication displays
Other Commitments [Line Items]
Number of displays | Displays	9,283		4,902		4,902
MTA displays installed
Other Commitments [Line Items]
Number of displays | Displays			19,697		19,697
Number Of Display Additions | Displays			911		5,544

Commitment and Contingencies _3

Commitment and Contingencies - MTA Agreement (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023		Dec. 31, 2022	Dec. 31, 2021
Change In MTA Deployment Costs [Roll Forward]
Prepaid MTA equipment deployment costs, beginning of period	$ 363.2		$ 279.8
Other current assets, beginning of period	5.6
Intangible assets, gross, beginning of period	2,149.7
MTA deployment costs, beginning of period	426.8		348
MTA equipment development cost additions	43.7		88.9
Total recoupment and MTA funding	(0.1)		(3.7)
Increase (Decrease) reclassification to (from) Prepaid MTA Equipment Deployment Costs	21.8		83.4	$ 75.2
Prepaid MTA equipment deployment costs, end of period	0		363.2	279.8
Other current assets, end of period	15.7		5.6
Intangible assets, gross, end of period	2,489.8	[1]	2,149.7
MTA deployment costs, end of period	1.1		426.8	348
MTA equipment deployment costs
Change In MTA Deployment Costs [Roll Forward]
Other current assets, beginning of period	1.6		5.2
Deployment costs incurred	21.8		83.4
Other current assets	(0.4)		0.1
Amortization and impairment of intangible assets	(469.3)		(6.4)
Other current assets, end of period	1.1		1.6	5.2
MTA equipment deployment costs | Reclassification, Other
Change In MTA Deployment Costs [Roll Forward]
Increase (Decrease) reclassification to (from) Prepaid MTA Equipment Deployment Costs	(385)
Increase (Decrease) reclassification to (from) intangible assets	385
MTA funding
Change In MTA Deployment Costs [Roll Forward]
Other current assets	(0.1)		(3.7)
Franchise agreements
Change In MTA Deployment Costs [Roll Forward]
Intangible assets, gross, beginning of period	533.2
Intangible assets, gross, end of period	934.8	[2]	533.2
Franchise agreements | MTA equipment deployment costs
Change In MTA Deployment Costs [Roll Forward]
Intangible assets, gross, beginning of period	62		63
Intangible asset additions	22.3		5.4
Amortization and impairment of intangible assets	(469.3)		(6.4)
Intangible assets, gross, end of period	$ 0		$ 62	$ 63
[1] In 2023, in connection with the Transaction, Intangible assets, net, of $53.0 million was reclassified as Assets held for sale We reclassified all Prepaid MTA equipment deployment costs (see Note 17. Commitments and Contingencies ) and recorded impairments in the second, third and fourth quarters of 2023 due to a decline in the long-term outlook of our U.S. Transit and Other reporting unit.

Segment Information - Narrative

Segment Information - Narrative (Details)	12 Months Ended
	Dec. 31, 2023 segment
Segment Reporting [Abstract]
Number of operating segments	2

Segment Information - Reconcili

Segment Information - Reconciliation of Revenue from Segments to Consolidated (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Segment Reporting Information [Line Items]
Revenues	$ 1,820.6	$ 1,772.1	$ 1,463.9
Operating segments | U.S. Media
Segment Reporting Information [Line Items]
Revenues	1,722.3	1,673.9	1,382
Operating segments | Other
Segment Reporting Information [Line Items]
Revenues	$ 98.3	$ 98.2	$ 81.9

Segment Information - Adjusted

Segment Information - Adjusted OIBDA by Segment and Reconciliation to Consolidated Net Income (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023		Dec. 31, 2022	Dec. 31, 2021
Segment Reporting Information [Line Items]
Net income (loss) before allocation to non-controlling interests	$ (429.7)		$ 149.1	$ 36.4
(Benefit) provision for income taxes	4		9.4	(3.4)
Equity in earnings of investee companies, net of tax	1.1		(2.8)	(1.4)
Interest expense, net	158.4		131.8	130.4
Loss on extinguishment of debt	(8.1)		0	(6.3)
Other income (loss), net	(0.3)		0.2	0
Operating income (loss)	(258.4)		287.7	168.3
Net (gain) loss on dispositions	(14.2)		0.2	(4.5)
Depreciation and amortization	160.5		150.7	145.4
Stock-based compensation	28.4		33.8	28.6
Adjusted OIBDA	451		472.4	340.3
Capital expenditures	86.8		89.8	73.8
Operating segments | U.S. Media
Segment Reporting Information [Line Items]
Operating income (loss)	(189.9)		363	248.5
Net (gain) loss on dispositions	(14.2)		0.2	(1.5)
Impairment charges	534.7	[1]	0	2.5	[2]
Depreciation and amortization	148.8		138	133.4
Adjusted OIBDA	479.4		501.2	382.9
Capital expenditures	76		85.4	69.3
Operating segments | Other
Segment Reporting Information [Line Items]
Operating income (loss)	11.4		7.9	1.4
Net (gain) loss on dispositions	0		0	(3)
Depreciation and amortization	11.7		12.7	12
Adjusted OIBDA	23.1		20.6	10.4
Capital expenditures	10.8		4.4	4.5
Corporate
Segment Reporting Information [Line Items]
Operating income (loss)	(79.9)		(83.2)	(81.6)
Adjusted OIBDA	$ (51.5)		$ (49.4)	$ (53)
[1] In 2023, Impairment charges related to a decline in the long-term outlook of our U.S. Transit and Other reporting unit (see Note 4. Long-Lived Assets) and an other-than-temporary decline in fair value of a cost-method investment. In 2021, Impairment charges related to an other-than-temporary decline in fair value of a cost-method investment.

Segment Information - Reconci_2

Segment Information - Reconciliation of Assets from Segment to Consolidated (Details) - USD ($) $ in Millions	Dec. 31, 2023		Dec. 31, 2022	Dec. 31, 2021
Segment Reporting Information [Line Items]
Assets	$ 5,582.9		$ 5,990	$ 5,924.7
Operating segments | U.S. Media
Segment Reporting Information [Line Items]
Assets	5,297.2		5,732.1	5,280.7
Operating segments | Other
Segment Reporting Information [Line Items]
Assets	259.7	[1]	240.4	248.1
Corporate
Segment Reporting Information [Line Items]
Assets	$ 26		$ 17.5	$ 395.9
[1] In 2023, includes amounts reclassified as Assets held for sale

Segment Information - Schedule

Segment Information - Schedule of Revenue from External Customers by Geographic Location (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Segment Reporting Information [Line Items]
Revenues		$ 1,820.6	$ 1,772.1	$ 1,463.9
United States
Segment Reporting Information [Line Items]
Revenues	[1]	1,728.5	1,680.2	1,385.6
Canada
Segment Reporting Information [Line Items]
Revenues	[1]	$ 92.1	$ 91.9	$ 78.3
[1] Revenues classifications are based on the geography of the advertising.

Segment Information - Long Live

Segment Information - Long Lived Assets by Geographic Areas (Details) - USD ($) $ in Millions		Dec. 31, 2023		Dec. 31, 2022	Dec. 31, 2021
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-Lived Assets	[1]	$ 5,176.9		$ 5,586.8	$ 5,129.1
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-Lived Assets	[1]	4,962.6		5,391	4,937
Canada
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-Lived Assets	[1]	$ 214.3	[2]	$ 195.8	$ 192.1
[1] Reflects total assets less current assets, investments and non-current deferred tax assets. In 2023, includes amounts reclassified as Assets held for sale

II - Valuation and Qualifying_3

II - Valuation and Qualifying Accounts (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Allowance for doubtful accounts:
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	$ 20.2	$ 18.5	$ 26.3
Balance Acquired through Acquisitions	0	0	0
Charged to Costs and Expenses	5.8	4.9	(4)
Charged to Other Accounts	(0.1)	2	0.5
Deductions	8.7	5.2	4.3
Balance at End of Period	17.2	20.2	18.5
Valuation allowance on deferred tax assets
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	11.9	0.4	0.4
Balance Acquired through Acquisitions	0	0	0
Charged to Costs and Expenses	4.7	11.9	0
Charged to Other Accounts	0	0	0
Deductions	0	0.4	0
Balance at End of Period	$ 16.6	$ 11.9	$ 0.4

III - Schedule of Real Estate_3

III - Schedule of Real Estate and Accumulated Depreciation (Details) $ in Millions		12 Months Ended
		Dec. 31, 2023 USD ($) display asset		Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year		$ 2,186.5	[1],[2]	$ 2,119	$ 2,040.3
Accumulated Depreciation		(1,594.4)		(1,519.5)	(1,490.9)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at the beginning of the year		2,119		2,040.3	1,993
Additions for construction of / improvements to structures		65.7		109.4	61.7
Assets sold or written-off		(6.5)		(9)	(14.6)
Foreign exchange		8.3		(21.7)	0.2
Balance at the end of the year		2,186.5	[1],[2]	2,119	2,040.3
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Balance at the beginning of the year		1,519.5		1,490.9	1,448.2
Depreciation		60.2		56.1	56
Impairment		12.5		0	0
Assets sold or written-off		(5.4)		(7.5)	(13.5)
Foreign exchange		7.6		(20)	0.2
Balance at the end of the year		$ 1,594.4		1,519.5	1,490.9
United States
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
SEC Schedule III, Real Estate, Number of Units, as of date | display		40,791
Encumbrances		$ 0
Gross carrying amount at the end of the year	[1]	1,865.4
Accumulated Depreciation		(1,307.2)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at the end of the year	[1]	1,865.4
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Balance at the end of the year		$ 1,307.2
Canada
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
SEC Schedule III, Real Estate, Number of Units, as of date | display		4,609
Encumbrances		$ 0
Gross carrying amount at the end of the year	[1]	321.1
Accumulated Depreciation		(287.2)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at the end of the year	[1]	321.1
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Balance at the end of the year		$ 287.2
Maximum | United States
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Life Used for Depreciation		20 years
Maximum | Canada
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Life Used for Depreciation		20 years
Minimum | United States
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Life Used for Depreciation		3 years
Minimum | Canada
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Life Used for Depreciation		3 years
Assets
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Number of assets which exceed concentration risk % | asset		0
Assets | Percentage Of Total Gross Carrying Amount | Maximum
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Concentration Risk, Percentage		5%
Structures Added Prior to 1/1/2014
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	[1]	$ 1,894.8
Accumulated Depreciation		(1,584)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at the end of the year	[1]	1,894.8
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Balance at the end of the year		$ 1,584
Structures Added Prior to 1/1/2014 | United States
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
SEC Schedule III, Real Estate, Number of Units, as of date | display		37,660
Gross carrying amount at the end of the year	[1]	$ 1,607.8
Accumulated Depreciation		(1,298.8)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at the end of the year	[1]	1,607.8
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Balance at the end of the year		$ 1,298.8
Structures Added Prior to 1/1/2014 | Canada
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
SEC Schedule III, Real Estate, Number of Units, as of date | display		4,168
Gross carrying amount at the end of the year	[1]	$ 287
Accumulated Depreciation		(285.2)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at the end of the year	[1]	287
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Balance at the end of the year		$ 285.2
Structures Added Prior to 1/1/2014 | Maximum | United States
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Life Used for Depreciation		20 years
Structures Added Prior to 1/1/2014 | Maximum | Canada
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Life Used for Depreciation		20 years
Structures Added Prior to 1/1/2014 | Minimum | United States
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Life Used for Depreciation		3 years
Structures Added Prior to 1/1/2014 | Minimum | Canada
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Life Used for Depreciation		3 years
Structures Added Subsequent to 1/1/2014 | United States
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
SEC Schedule III, Real Estate, Number of Units, as of date | display		3,131
Structures Added Subsequent to 1/1/2014 | Canada
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
SEC Schedule III, Real Estate, Number of Units, as of date | display		441
Structures Added Subsequent to 1/1/2014 | Maximum | United States
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Life Used for Depreciation		20 years
Structures Added Subsequent to 1/1/2014 | Maximum | Canada
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Life Used for Depreciation		20 years
Structures Added Subsequent to 1/1/2014 | Minimum | United States
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Life Used for Depreciation		3 years
Structures Added Subsequent to 1/1/2014 | Minimum | Canada
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Life Used for Depreciation		3 years
Structures Added Subsequent to 1/1/2014 | Real estate
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	[1]	$ 291.7
Accumulated Depreciation		(10.4)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at the end of the year	[1]	291.7
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Balance at the end of the year		10.4
Structures Added Subsequent to 1/1/2014 | Real estate | United States
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	[1]	257.6
Accumulated Depreciation		(8.4)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at the end of the year	[1]	257.6
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Balance at the end of the year		8.4
Structures Added Subsequent to 1/1/2014 | Real estate | Canada
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	[1]	34.1
Accumulated Depreciation		(2)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at the end of the year	[1]	34.1
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Balance at the end of the year		2
Advertising structures
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	[1]	2,074.9
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at the end of the year	[1]	2,074.9
Advertising structures | United States
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	[1]	1,755.3
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at the end of the year	[1]	1,755.3
Advertising structures | Canada
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	[1]	319.6
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at the end of the year	[1]	319.6
Advertising structures | Structures Added Prior to 1/1/2014
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	[1]	1,813.5
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at the end of the year	[1]	1,813.5
Advertising structures | Structures Added Prior to 1/1/2014 | United States
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	[1]	1,528
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at the end of the year	[1]	1,528
Advertising structures | Structures Added Prior to 1/1/2014 | Canada
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	[1]	285.5
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at the end of the year	[1]	285.5
Advertising structures | Structures Added Subsequent to 1/1/2014
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	[1]	261.4
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at the end of the year	[1]	261.4
Advertising structures | Structures Added Subsequent to 1/1/2014 | United States
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	[1]	227.3
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at the end of the year	[1]	227.3
Advertising structures | Structures Added Subsequent to 1/1/2014 | Canada
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	[1]	34.1
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at the end of the year	[1]	34.1
Land
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	[1]	111.6
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at the end of the year	[1]	111.6
Land | United States
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	[1]	110.1
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at the end of the year	[1]	110.1
Land | Canada
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	[1]	1.5
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at the end of the year	[1]	1.5
Land | Structures Added Prior to 1/1/2014
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	[1]	81.3
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at the end of the year	[1]	81.3
Land | Structures Added Prior to 1/1/2014 | United States
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	[1]	79.8
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at the end of the year	[1]	79.8
Land | Structures Added Prior to 1/1/2014 | Canada
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	[1]	1.5
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at the end of the year	[1]	1.5
Land | Structures Added Subsequent to 1/1/2014
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	[1]	30.3
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at the end of the year	[1]	30.3
Land | Structures Added Subsequent to 1/1/2014 | United States
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	[1]	30.3
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at the end of the year	[1]	30.3
Land | Structures Added Subsequent to 1/1/2014 | Canada
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	[1]	0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at the end of the year	[1]	0
Initial Acquisition Cost | Advertising structures | Structures Added Subsequent to 1/1/2014
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year		277.3
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at the end of the year		277.3
Initial Acquisition Cost | Advertising structures | Structures Added Subsequent to 1/1/2014 | United States
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year		243.5
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at the end of the year		243.5
Initial Acquisition Cost | Advertising structures | Structures Added Subsequent to 1/1/2014 | Canada
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year		33.8
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at the end of the year		33.8
Initial Acquisition Cost | Land | Structures Added Subsequent to 1/1/2014
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year		30.3
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at the end of the year		30.3
Initial Acquisition Cost | Land | Structures Added Subsequent to 1/1/2014 | United States
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year		30.3
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at the end of the year		30.3
Initial Acquisition Cost | Land | Structures Added Subsequent to 1/1/2014 | Canada
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year		0
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at the end of the year		0
Costs Capitalized Subsequent to Acquisition | Structures Added Subsequent to 1/1/2014
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year		15.9
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at the end of the year		15.9
Costs Capitalized Subsequent to Acquisition | Structures Added Subsequent to 1/1/2014 | United States
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year		16.2
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at the end of the year		16.2
Costs Capitalized Subsequent to Acquisition | Structures Added Subsequent to 1/1/2014 | Canada
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year		0.3
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Balance at the end of the year		0.3
New Investments
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Additions for construction of / improvements to structures		19.6		33.2	28.3
Redevelopments
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Additions for construction of / improvements to structures		37.2		50.9	15.3
Recurring Capital Expenditures
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Additions for construction of / improvements to structures		8.8		15.6	12.4
Purchase Price Accounting Adjustments
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Additions for construction of / improvements to structures		0		0	0.7
Land Acquisitions
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate [Roll Forward]
Additions for construction of / improvements to structures		$ 0.1		$ 9.7	$ 5
[1] Includes sites under construction. No single asset exceeded 5% of the total gross carrying amount as of December 31, 2023.