Outfront Media (OUT) 10-K 6 Mar 15 2014 FY Annual report Financial data

Document_and_Entity_Informatio

Document and Entity Information (USD $)	12 Months Ended
	Dec. 31, 2014	Mar. 04, 2015	Jun. 30, 2014
Document and Entity Information [Abstract]
Entity Registrant Name	OUTFRONT Media Inc.
Entity Central Index Key	1579877
Current Fiscal Year End Date	-19
Entity Filer Category	Non-accelerated Filer
Document Type	10-K
Document Period End Date	31-Dec-14
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	FY
Amendment Flag	FALSE
Entity Common Stock, Shares Outstanding		137,098,703
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Public Float			$741,144,164

Statement_of_Financial_Positio

Statement of Financial Position (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Assets, Current [Abstract]
Cash and cash equivalents	$28.50	$29.80
Receivables, less allowances of $14.2 in 2014 and $15.7 in 2013	217.5	178.8
Deferred income tax assets, net	2.3	24.5
Prepaid lease and transit franchise costs	68.2	62.7
Other prepaid expenses	26.1	15.5
Other current assets	12.7	5.9
Total current assets	355.3	317.2
Assets, Noncurrent [Abstract]
Property and equipment, net	782.9	755.4
Goodwill	2,154.20	1,865.70
Intangible assets	633.2	364.4
Other assets	98	52.8
Total assets	4,023.60	3,355.50
Liabilities, Current [Abstract]
Accounts payable	75.2	80
Accrued compensation	34.6	28.2
Accrued interest	18	0.1
Accrued lease costs	34.4	17.7
Other accrued expenses	47.4	37.7
Deferred revenues	18.6	22.9
Other current liabilities	27	25.6
Total current liabilities	255.2	212.2
Liabilities, Noncurrent [Abstract]
Long-term debt	2,198.30	0
Deferred income tax liabilities, net	17.2	288.5
Asset retirement obligation	36.6	31.7
Other liabilities	70.8	68.7
Liabilities	2,578.10	601.1
Commitments and contingencies
Stockholders’ equity/invested equity:
Common stock (2014 - 450.0 shares authorized, and 136.6 shares issued and outstanding; 2013 - no shares authorized, issued or outstanding)	1.4	0
Additional paid-in capital	1,911.20	0
Distribution in excess of earnings	-377	0
Invested capital	0	2,829.50
Accumulated other comprehensive loss	-90.1	-75.1
Total stockholders’ equity	1,445.50
Total invested equity		2,754.40
Total liabilities and stockholders’ equity/invested equity	$4,023.60	$3,355.50

Statement_of_Financial_Positio1

Statement of Financial Position (Parenthetical) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Millions, except Share data, unless otherwise specified
Statement of Financial Position [Abstract]
Allowance for Receivables	$14.20	$15.70
Common Stock, Outstanding	136,624,157	0
Common Stock, Shares Authorized	450,000,000	0
Common Stock, Shares, Issued	136,624,157	0

Statement_of_Operations

Statement of Operations (USD $)	12 Months Ended
In Millions, except Per Share data, unless otherwise specified	Dec. 31, 2014		Dec. 31, 2013	Dec. 31, 2012
Revenues [Abstract]
Billboard	$972.10		$925.70	$913.60
Transit and other	381.7		368.3	371
Total revenues	1,353.80		1,294	1,284.60
Expenses:
Operating	726.5		686.9	700.1
Selling, general and administrative	224.3		199.8	181.8
Restructuring charges	9.8	[1]	0	2.5
Acquisition costs	10.4	[1]	0	0
Net (gain) loss on dispositions	-2.5		-27.3	2.2
Depreciation	107.2		104.5	105.9
Amortization	95		91.3	90.9
Total expenses	1,170.70		1,055.20	1,083.40
Operating income	183.1		238.8	201.2
Interest income (expense), net	-84.8		0	0
Other income (expense), net	-0.3		-1.2	-1
Income before benefit (provision) for income taxes and equity in earnings of investee companies	98		237.6	200.2
Benefit (provision) for income taxes	206		-96.6	-89
Equity in earnings of investee companies, net of tax	2.9		2.5	2.2
Net income	$306.90		$143.50	$113.40
Net income per common share:
Basic ($ per share)	$2.69		$1.26	$0.99
Diluted ($ per share)	$2.67		$1.25	$0.99
Weighted average shares outstanding:
Basic (shares)	114.3		114.3	114.3
Diluted (shares)	114.8		114.8	114.8
Dividends declared per common share	$5.67		$0	$0
[1]	In 2014, restructuring charges (including stock-based compensation of $5.6 million), costs related to the Acquisition and stock-based compensation are classified as Corporate expense.

Statement_of_Comprehensive_Inc

Statement of Comprehensive Income (USD $)	3 Months Ended									12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014		Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Statement of Comprehensive Income [Abstract]
Net income	$27.80	[1]	$248.30	$22.40	$8.40	$50	$37.20	$36.40	$19.90	$306.90	$143.50	$113.40
Other comprehensive income (loss), net of tax:
Cumulative translation adjustments										-10.7	-14.9	11
Net actuarial gain (loss)										-3.1	5.8	-1.4
Deferred tax rate adjustment										-1.2	0	0
Total other comprehensive income (loss), net of tax										-15	-9.1	9.6
Total comprehensive income										$291.90	$134.40	$123
[1]	In the fourth quarter of 2014, we issued the New Senior Notes (see Note 8. Long-Term Debt) and completed the Acquisition (see Note 12. Acquisition) and also reversed an additional $3.3 million of Deferred income tax liabilities, net, related to our REIT conversion.

Statement_of_Invested_EquitySt

Statement of Invested Equity/Stockholders’ Equity (USD $)	Total	Common Stock	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Invested Capital [Member]	Accumulated Other Comprehensive Loss	Treasury Stock [Member]
In Millions, except Share data
Total invested equity at Dec. 31, 2011	$2,990.60				$3,066.20	($75.60)
Net income	113.4				113.4	0
Other comprehensive income (loss)	9.6					9.6
Net contribution from (distribution to) CBS	-269.7				-269.7	0
Total invested equity, ending balance at Dec. 31, 2012	2,843.90				2,909.90	-66
Shares of common stock	0
Net income	143.5				143.5
Other comprehensive income (loss)	-9.1					-9.1
Net contribution from (distribution to) CBS	-223.9				-223.9
Total invested equity, ending balance at Dec. 31, 2013	2,754.40				2,829.50	-75.1
Shares of common stock	136,624,157	136,600,000
Net income	306.9			305.8	1.1
Other comprehensive income (loss)	-15					-15
Initial public offering	615	0.2	614.8
Initial public offering (shares)		23,000,000
Stock-based compensation: Amortization	14.1		14.1
Shares paid for tax withholding for stock-based payments	-0.1						-0.1
Retirement of treasury stock	0		-0.1				0.1
Conversion to stockholders' equity	0	1	2,829.60		-2,830.60
Conversion to stockholders' equity (shares)		97,000,000
Distribution to investee company	2		2
Distribution to investee company (shares)		100,000
Distribution of debt and IPO proceeds to CBS	-2,038.80		-2,038.80
Dividends	-244.6	0.2	438	-682.8
Common Stock Dividends, shares		16,500,000
Net contribution from (distribution to) CBS	51.6		51.6
Total stockholders' equity	$1,445.50	$1.40	$1,911.20	($377)	$0	($90.10)	$0
Total invested equity, ending balance at Dec. 31, 2014

Statement_of_Invested_EquitySt1

Statement of Invested Equity/Stockholders’ Equity (Parenthetical) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Statement of Stockholders' Equity [Abstract]
Common Stock, Par Value	$0.01
Dividends declared per common share	$5.67	$0	$0

Statement_of_Cash_Flows

Statement of Cash Flows (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Operating Activities:
Net income	$306.90	$143.50	$113.40
Adjustments to reconcile net income to net cash flow provided by operating activities:
Depreciation and amortization	202.2	195.8	196.8
Deferred tax (benefit) liability	-249.5	-15.5	-6.6
Stock-based compensation	16	7.5	5.7
Provision for doubtful accounts	2.9	0.4	3.1
Accretion expense	2.3	2.2	2.5
Net (gain) loss on dispositions	-2.5	-27.3	2.2
Equity in earnings of investee companies, net of tax	-2.9	-2.5	-2.2
Distributions from investee companies	7.4	4.4	6.4
Amortization of deferred financing costs and debt discount	12.1	0	0
Change in assets and liabilities, net of investing and financing activities
(Increase) decrease in receivables	-0.6	-7.1	7.6
(Increase) decrease in prepaid expenses and other current assets	-6.4	9.5	3.9
Decrease in accounts payable and accrued expenses	-5.8	-32.2	-26.5
Increase (decrease) in deferred revenues	-9.8	7.1	0.9
(Decrease) increase in income taxes	-9	-6.5	-3.8
Other, net	-0.5	1.8	2.5
Net cash provided by operating activities	262.8	281.1	305.9
Investing Activities:
Capital expenditures	-64.2	-60.9	-48.2
Acquisitions	-735.7	-11.5	-0.4
Investments in investee companies	-3	0	0
Proceeds from dispositions	4.5	28.7	0.5
Net cash used for investing activities	-798.4	-43.7	-48.1
Financing Activities
Proceeds from IPO	615	0	0
Proceeds from long-term debt borrowings - term loan and senior notes	1,598	0	0
Proceeds from long-term debt - new senior notes	599.3	0	0
Deferred financing fees	-42.7	0	0
Excess tax benefit from stock-based compensation	0	5.8	2.9
Distribution of net debt and IPO proceeds to CBS	-2,038.80	0	0
Net cash contribution from (distribution to) CBS	49.3	-232.6	-279.7
Dividends	-133.2	0	0
Special dividend	-109.5	0	0
Other	-0.8	-0.2	-0.2
Net cash provided by (used for) financing activities	536.6	-227	-277
Effect of exchange rate changes on cash and cash equivalents	-2.3	-0.8	1.8
Net increase (decrease) in cash and cash equivalents	-1.3	9.6	-17.4
Cash and cash equivalents at beginning of period	29.8	20.2	37.6
Cash and cash equivalents at end of period	28.5	29.8	20.2
Supplemental disclosure of cash flow information
Cash paid for income taxes	53	112.8	96.5
Cash paid for interest	55.1	0	0
Investments in investee companies	0	13.1	0
Accrued purchases of property and equipment	1.4	12.8	15.5
Issuance of stock for purchase of property and equipment	$2	$0	$0

Description_of_Business_and_Ba

Description of Business and Basis of Presentation	12 Months Ended
	Dec. 31, 2014
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., formerly known as CBS Outdoor Americas Inc., (the “Company”) and its subsidiaries (collectively, “we,” “us” or “our”) was formed as an indirect wholly owned subsidiary of CBS Corporation (“CBS”). We provide advertising space (“displays”) on out-of-home advertising structures and sites in the U.S., Canada and Latin America. Our portfolio includes billboard displays, which are predominantly located in densely populated major metropolitan areas and along high-traffic expressways and major commuting routes. We also have a number of exclusive multi-year contracts to operate advertising displays in municipal transit systems. We have displays in all of the 25 largest markets in the U.S. and over 180 markets across the U.S., Canada and Latin America. We manage our business through two segments - United States (“U.S.”) and International.
	On April 2, 2014, we completed an initial public offering (the “IPO”) of 23,000,000 shares of our common stock, including 3,000,000 shares of our common stock sold pursuant to the underwriters’ option to purchase additional shares. (See Note 2. Initial Public Offering.)
	On April 16, 2014, CBS received a private letter ruling from the Internal Revenue Service (“IRS”) with respect to certain issues relevant to our ability to qualify as a real estate investment trust (“REIT”). On July 16, 2014, we ceased to be a member of the CBS consolidated tax group and on July 17, 2014, we began operating in a manner that will allow us to qualify as a REIT for U.S. federal income tax purposes for the tax year commencing July 17, 2014, and ending December 31, 2014.
	On July 16, 2014, CBS completed a registered offer to exchange 97,000,000 shares of our common stock that were owned by CBS for outstanding shares of CBS Class B common stock (the “Exchange Offer”). In connection with the Exchange Offer, CBS disposed of all of its shares of our common stock and as of July 16, 2014, we were separated from CBS (the “Separation”) and were no longer a subsidiary of CBS.
	On October 1, 2014, we completed our acquisition of certain outdoor advertising businesses (the “Acquired Business”) of Van Wagner Communications, LLC, for $690.0 million in cash, plus working capital adjustments (the “Acquisition”). The Acquisition was funded with the net proceeds from the issuance and sale of the New Senior Notes (as defined in Note 8. Long-Term Debt) and cash on hand.
	In order to comply with certain REIT qualification requirements, on October 29, 2014, our board of directors approved a special dividend of approximately $547.7 million, or $4.56 per share, to distribute accumulated earnings and profits as of July 17, 2014, the date we began operating in a manner that will allow us to qualify as a REIT for U.S. federal income tax purposes, including any earnings and profits allocated to us by CBS in connection with the Separation (the “E&P Purge”). The special dividend was paid on December 31, 2014, to stockholders of record on November 20, 2014. In connection with the special dividend, we paid approximately $109.5 million in cash, and issued approximately 16.5 million new shares of our common stock based on the volume weighted average price of our common stock for the three trading days commencing on December 16, 2014, or $26.4974 per share. As stated in Note 2. Initial Public Offering, a portion ($100.0 million) of the IPO proceeds was retained by us and was applied to the cash portion of the E&P Purge. CBS transferred the balance of the cash portion of the E&P Purge (approximately $9.5 million) to us prior to the payment of the special dividend to stockholders.
	On February 26, 2015, we announced that our board of directors approved a special cash dividend of $0.06 per share on our common stock, comprised of a “top-up” of the 2014 annual dividend for REIT distributable income (the “top-up dividend”). The top-up dividend is payable on March 31, 2015, to stockholders of record at the close of business on March 11, 2015. On February 26, 2015, we also announced that our board of directors approved a quarterly cash dividend of $0.34 per share on our common stock, payable on March 31, 2015, to stockholders of record at the close of business on March 11, 2015.
	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. Certain previously reported amounts have been reclassified to conform with the current presentation.
	We have revised the previously reported condensed consolidated Statement of Cash Flows for the years ended December 31, 2013 and 2012. Historically, non-cash purchases of property and equipment were previously included within capital expenditures. The revision increased Net cash used in investing activities and increased Net cash provided by operating activities by $2.7 million for the year ended December 31, 2013, and decreased Net cash used in investing activities and decreased Net cash provided by operating activities by $5.4 million for the year ended December 31, 2012. We do not believe that these misclassifications were material to the previously reported annual financial statements. The above adjustments had no effect on previously reported Statements of Operations, Statements of Financial Position or Statements of Invested Equity/Stockholders' Equity.
	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 from these estimates under different assumptions or conditions.
	Our 2013 financial statements were presented on a “carve-out” basis from CBS’s consolidated financial statements based on the historical results of operations, cash flows, assets and liabilities attributable to its Outdoor Americas operating segment. Management believes that the assumptions and estimates used in the preparation of the underlying consolidated financial statements are reasonable. However, the consolidated financial statements herein do not necessarily reflect what our financial position, results of operations or cash flows would have been if we had been a stand-alone company during the periods presented. As a result, such historical financial information is not necessarily indicative of our future results of operations, financial position or cash flows.

Initial_Public_Offering_Notes

Initial Public Offering (Notes)	12 Months Ended
	Dec. 31, 2014
Initial Public Offering [Abstract]
Initial Public Offering	Initial Public Offering
	On March 27, 2014, our registration statement on Form S-11 related to our IPO of our common stock was declared effective by the SEC and on March 28, 2014, our common stock began trading on the New York Stock Exchange under the symbol “CBSO.” On April 2, 2014, we completed an IPO of 23,000,000 shares of our common stock, including 3,000,000 shares of our common stock sold pursuant to the underwriters’ option to purchase additional shares, at a price of $28.00 per share for total net proceeds, after underwriting discounts and commissions, of $615.0 million. Of the total net proceeds, $515.0 million was transferred to a wholly owned subsidiary of CBS as partial consideration for the contribution of the entities comprising CBS’s Outdoor Americas operating segment to us. The remaining $100.0 million was retained by us and was applied to the cash portion of the E&P Purge.

Summary_of_Significant_Account

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2014
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies
	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. Prior to January 31, 2014, we carried minimal cash on hand as we had participated in CBS’s centralized cash management system. On January 31, 2014, we incurred $1.6 billion in debt under the Senior Credit Facilities and the Senior Notes (see Note 8. Long-Term Debt), and accordingly, our participation in the CBS centralized cash management system ceased.
	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, as well as recent payment history for specific customers.
	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	20 to 40 years
	Advertising structures	5 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—We routinely acquire out-of-home advertising assets, including advertising structures and 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 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 and recognized as a non-cash charge.
	Goodwill and Intangible Assets—Goodwill is allocated to various reporting units. Each of our segments consists of two reporting units. 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 to 40 years. Goodwill is not amortized but is tested at the reporting-unit level annually for impairment and between annual tests if events occur or circumstances change that would more likely than not reduce the fair value below its carrying amount. If the carrying value of goodwill exceeds its fair value, an impairment loss is recognized as a non-cash charge.
	Revenue Recognition—Our revenues are primarily derived from providing space on advertising displays for local, regional and national advertisements. Contracts with customers generally cover periods ranging from four weeks to twelve months and are generally billed every four weeks. Revenues from billboard displays are recognized as rental income on a straight-line basis over the contract term. Transit and other revenues are recognized as earned, which is typically ratably over the contract period. For space provided to advertisers through the use of an advertising agency whose commission is calculated based on a stated percentage of gross billing revenues, revenues are reported net of agency commissions.
	Deferred revenues primarily consist of revenues paid in advance of being earned.
	Revenues derived from a single contract that contains multiple site locations are allocated based on the relative fair value of each delivered item and recognized in accordance with the applicable revenue recognition criteria for the specific unit of accounting.
	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 to twelve months.
	The fixed component of lease costs is expensed evenly over the contract term, and contingent rent is expensed as it becomes probable, which is consistent with when the related revenues are recognized.
	Transit franchise agreements generally provide for payment to the municipality or transit operator of the greater of a percentage of the revenues that we generate under the related transit contract and a specified guaranteed minimum payment. The costs which are determined based on a percentage of revenues are expensed as incurred when the related revenues are recognized, and the minimum guarantee 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 is presented within amortization expense 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. The resulting translation gains and losses are included as a component of invested equity in accumulated other comprehensive loss. Foreign currency transaction gains and losses are included in “Other income (expense), net” in the Consolidated Statements of Operations.
	Income Taxes—Prior to the Separation, we were a member of CBS’s consolidated tax group, and the provision for income taxes, deferred tax assets and liabilities, and income tax payments were calculated on a separate tax return basis, with us as the taxpayer, even though our U.S. operating results were included in the consolidated federal, and certain state and local income tax returns of CBS. We believe that the assumptions and estimates used to determine these tax amounts were reasonable.
	On July 16, 2014, we ceased to be a member of the CBS consolidated tax group and on July 17, 2014, we began operating in a manner that will allow us to qualify as a REIT for U.S. federal income tax purposes for the tax year commencing July 17, 2014, and ending December 31, 2014. We believe we are organized in conformity with the requirements for qualification and taxation as a REIT under Sections 856-860 of the Internal Revenue Code of 1986, as amended (the “Code”), and intend to elect REIT status with the filing of the tax return for the above-referenced short taxable year. Accordingly, 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 our foreign subsidiaries, as taxable REIT subsidiaries (“TRS”). 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 operating expenses and the capitalized cost is depreciated over the expected useful life of the related asset.
	Stock-based Compensation—During 2014, we converted CBS stock options and CBS restricted stock units (“RSUs”) issued by CBS to certain of our employees to stock options and RSUs issued under our equity incentive plan with the same terms and conditions as the CBS awards. 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 was recognized over the vesting period during which an employee was required to provide service in exchange for the award.
	Adoption of New Accounting Standards
	Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists
	During 2014, we adopted the Financial Accounting Standards Board’s (the “FASB’s”) guidance on the presentation of the reserve for uncertain tax positions when a net operating loss carryforward, a similar tax loss, or a tax credit carryforward exists. This guidance requires the reserve for uncertain tax positions to be presented in the financial statements as a reduction to the deferred tax asset for a tax loss or other tax carryforward that would be applied in the settlement of the uncertain tax position. This guidance did not have a material effect on our consolidated financial statements.
	Obligations Resulting from Joint and Several Liability Arrangements
	During 2014, we adopted FASB guidance on the recognition, measurement and disclosure of obligations resulting from joint and several liability arrangements for which the total amount of the obligation is fixed at the reporting date. Under this guidance, we are required to measure our obligations under such arrangements as the sum of the amount we agreed to pay in the arrangement among our co-obligors and any additional amount we expect to pay on behalf of our co-obligors. We are also required to disclose the nature and amount of the obligation. This guidance did not have a material effect on our consolidated financial statements.
	Recent Pronouncements
	Service Concession Arrangements
	In January 2014, the FASB issued guidance on the accounting for service concession arrangements with public sector entities. This guidance specifies that an operating entity should not account for a service concession arrangement as a lease and the infrastructure used in a service concession arrangement should not be recognized as property, plant and equipment. This guidance applies when the public sector entity controls the services that the operating entity must provide within the infrastructure and also controls any residual interest in the infrastructure at the end of the term of the arrangement. We are currently evaluating the impact of this guidance, which is effective for reporting periods beginning after December 15, 2014, on our consolidated financial statements.
	Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity
	In April 2014, the FASB issued guidance on reporting discontinued operations and disclosures of disposals of components of an entity. The new guidance changes the requirements, including additional disclosures, for reporting discontinued operations which may include a component of an entity or a group of components of an entity, or a business or nonprofit activity. Under the new guidance, a discontinued operation is defined as a disposal of a component or group of components that is disposed of or is classified as held for sale and represents a strategic shift that has (or will have) a major effect on an entity’s operations and financial results. This guidance is effective for interim periods and annual periods beginning after December 31, 2014. Early adoption is permitted, but only for disposals that have not been reported in financial statements previously issued or available for issuance. This guidance is not expected to have a material effect on our consolidated financial statements.
	Revenue from Contracts with Customers
	In May 2014, the FASB issued principles-based guidance addressing revenue recognition issues. The guidance may be applied to all contracts with customers regardless of industry-specific or transaction specific fact patterns. This guidance is to be applied retrospectively and is effective for interim and annual periods beginning after December 15, 2016. Early adoption is not permitted. We are currently evaluating the impact of this guidance on our consolidated financial statements.

Property_and_Equipment

Property and Equipment	12 Months Ended
	Dec. 31, 2014
Property, Plant and Equipment [Abstract]
Property and Equipment	Property and Equipment
	The table below presents the balances of major classes of assets and accumulated depreciation.
		As of December 31,
	(in millions)	2014		2013
	Land	$	88.1	$	88.6
	Buildings and improvements	47		45
	Advertising structures	1,745.60		1,662.30
	Furniture, equipment and other	78.1		77.2
	Construction in progress	17.1		18.9
		1,975.90		1,892.00
	Less accumulated depreciation	1,193.00		1,136.60
	Property and equipment, net	$	782.9	$	755.4
	Depreciation expense was $107.2 million in 2014, $104.5 million in 2013 and $105.9 million in 2012.

Goodwill_and_Other_Intangible_

Goodwill and Other Intangible Assets	12 Months Ended
	Dec. 31, 2014
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and other intangible assets	Goodwill and Other Intangible Assets
	For the years ended December 31, 2014 and 2013, the changes in the book value of goodwill by segment were as follows:
	(in millions)		U.S.			International			Total
	As of December 31, 2012		$	1,758.00		$	119.2		$	1,877.20
	Currency translation adjustments		—			(5.1		)	(5.1		)
	Dispositions		(6.4		)	—			(6.4		)
	As of December 31, 2013		1,751.60			114.1			1,865.70
	Currency translation adjustments		—			(10.5		)	(10.5		)
	Additions(a)		299.2			—			299.2
	Dispositions		(0.2		)	—			(0.2		)
	As of December 31, 2014		$	2,050.60		$	103.6		$	2,154.20
	(a)	In 2014, we completed the Acquisition (see Note 12. Acquisition).
	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			Net
						Amortization
	As of December 31, 2014:
	Permits and leasehold agreements		$	1,119.20		$	(677.2	)	$	442
	Franchise agreements		474.7			(321.1		)	153.6
	Other intangible assets		39.9			(2.3		)	37.6
	Total intangible assets		$	1,633.80		$	(1,000.6	)	$	633.2
	As of December 31, 2013:
	Permits and leasehold agreements		$	880.6		$	(659.0	)	$	221.6
	Franchise agreements		462.4			(320.7		)	141.7
	Other intangible assets		2.1			(1.0		)	1.1
	Total intangible assets		$	1,345.10		$	(980.7	)	$	364.4
	All of our intangible assets, except goodwill, are subject to amortization. Amortization expense was $95.0 million in 2014, $91.3 million in 2013 and $90.9 million in 2012, which includes the amortization of direct lease acquisition costs of $33.8 million in 2014, $30.9 million in 2013 and $31.1 million in 2012. Direct lease acquisition costs are amortized on a straight-line basis over the related customer lease term, which generally ranges from four weeks to one year.
	We expect our aggregate annual amortization expense for intangible assets, before considering the impact of future direct lease acquisition costs, for each of the years 2015 through 2019, to be as follows:
	(in millions)		2015			2016			2017			2018		2019
	Amortization expense		$	76.7		$	71.7		$	49.5		$	42.7	$	40.9

Asset_Retirement_Obligation

Asset Retirement Obligation	12 Months Ended
	Dec. 31, 2014
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.
		For Year Ended December 31,
	(in millions)	2014			2013
	Balance, at beginning of period	$	31.7		$	30.6
	Accretion expense	2.3			2.2
	Additions	4.7			0.4
	Liabilities settled	(1.2		)	(0.9		)
	Foreign currency translation adjustments	(0.9		)	(0.6		)
	Balance, at end of period	$	36.6		$	31.7

Related_Party_Transactions

Related Party Transactions	12 Months Ended
	Dec. 31, 2014
Related Party Transactions [Abstract]
Related Party Transactions	Related Party Transactions
	CBS Corporation
	Our financial statements as of and for the year ended December 31, 2014, include charges from CBS for services, such as tax, internal audit, cash management, insurance, technology systems and other services. In addition, prior to 2014, CBS provided benefits to our employees, including certain post-employment benefits, medical, dental, life and disability insurance and participation in a 401(k) savings plan. Charges for these services and benefits are reflected in the consolidated financial statements based on the specific identification of costs, assets and liabilities or based on various allocation methods, including factors such as headcount, time and effort spent on matters relating to us, and the number of CBS operating entities benefiting from such services. Charges for these services and benefits have been included in Selling, general and administrative expenses in the accompanying Consolidated Statements of Operations and totaled $9.6 million in 2014, $60.9 million in 2013 and $47.7 million in 2012. Also included in these charges are professional fees associated with our planned election to be taxed as a REIT. Our expenses as a stand-alone company may be different from those reflected in the Consolidated Statements of Operations prior to the IPO. Effective January 1, 2014, our employees began participating in employee benefit plans maintained by us. As a result, there were no benefits provided by CBS in 2014. In addition, during 2014, all services previously provided by CBS have been transitioned to us.
	As of December 31, 2014, there were no receivables from CBS and payables to CBS were $0.2 million, which were included in Other current liabilities on our Consolidated Statement of Financial Position. As of December 31, 2013, there were no receivables or payables from CBS on our Consolidated Statement of Financial Position.
	On April 2, 2014, we entered into a transition services agreement with CBS, pursuant to which CBS will temporarily provide us with certain services (including legal, finance, information technology, insurance, tax and employment functions), and we will provide certain limited services to CBS. Also on April 2, 2014, we entered into a license agreement with a wholly owned subsidiary of CBS, pursuant to which we have the right to use “CBS” in the corporate names of the Company and our subsidiaries and have the right to use the “CBS” mark and logo on our advertising billboards. On July 16, 2014, we amended the transition services agreement to extend the time periods in which CBS will provide the transition services described above to January 16, 2015 or to July 16, 2015, as applicable depending on the services being provided. Also on July 16, 2014, we amended the license agreement to extend the time period in which we have the right to use “CBS” in the corporate names of the Company and our subsidiaries to December 31, 2014, and have the right to use the “CBS” mark and logo on our advertising displays to March 31, 2016. Effective November 20, 2014, we re-branded the Company to “OUTFRONT media,” our common stock began trading on the New York Stock Exchange under the symbol “OUT” and our legal name changed to OUTFRONT Media Inc.
	Prior to the incurrence of indebtedness on January 31, 2014, intercompany transactions between CBS and us were considered to be effectively settled in cash in the financial statements. The net effect of the settlement of these intercompany transactions, in addition to cash transfers to and from CBS, are reflected in Net cash contribution from (distribution to) CBS on the Condensed Consolidated Statements of Cash Flows and Net contribution from (distribution to) CBS on the Consolidated Statements of Invested Equity/Stockholders’ Equity. The amounts on these financial statement line items differ due to non-cash transactions, such as stock-based compensation expense.
	For advertising spending placed by CBS and its subsidiaries, we recognized total revenues of $18.6 million, of which $7.7 million was before the Separation, for 2014, $14.9 million for 2013 and $16.6 million for 2012.
	On July 16, 2014, CBS completed the Separation and as a result of this transaction, CBS and their affiliates ceased to be related parties.
	Other Related Parties
	Viacom Inc. is controlled by National Amusements, Inc., the controlling stockholder of CBS. On July 16, 2014, CBS completed the Separation and as a result of this transaction, Viacom Inc. ceased to be a related party. Revenues recognized for advertising spending placed by various subsidiaries of Viacom Inc. were $10.4 million, of which $4.3 million was before the Separation, in 2014, $9.3 million in 2013 and $9.4 million in 2012.
	We have a 50% ownership interest in two joint ventures that operate transit shelters in Los Angeles and Vancouver. These ventures are accounted for as equity investments. These investments totaled $20.1 million as of December 31, 2014, and $24.1 million as of December 31, 2013, and are included in Other assets on the Consolidated Statements of Financial Position. We provide sales and management services to these joint ventures.

LongTerm_Debt

Long-Term Debt	12 Months Ended
	Dec. 31, 2014
Debt Disclosure [Abstract]
Long-Term Debt	Long-Term Debt
	Long-term debt consists of the following:
			As of
	(in millions, except percentages)		December 31,			December 31,
			2014			2013
	Term loan, due 2021		$	798.3		$	—
	Senior unsecured notes:
	5.250% senior unsecured notes, due 2022		549.3			—
	5.625% senior unsecured notes, due 2024		400			—
	5.875% senior unsecured notes, due 2025		450			—
	Total senior unsecured notes		1,399.30			—
	Other(a)		0.7			—
	Total long-term debt		$	2,198.30		$	—
	Weighted average cost of debt		4.6		%	—		%
	(a)	Reflects the outstanding balance as of December 31, 2014, of long-term debt assumed in conjunction with the Acquisition. (See Note 12. Acquisition.)
	Term Loan
	On January 31, 2014, two of our wholly owned subsidiaries, Outfront Media Capital LLC (“Capital LLC”) and Outfront Media Capital Corporation (“Finance Corp,” and together with Capital LLC, the “Borrowers”), borrowed $800.0 million under a term loan due in 2021 (the “Term Loan,” together with the Revolving Credit Facility (as defined below), the “Senior Credit Facilities”). The Senior Credit Facilities are governed by a credit agreement, dated as of January 31, 2014 (the “Credit Agreement”). The Term Loan is unconditionally guaranteed by us and our material existing and future direct and indirect wholly owned domestic subsidiaries (except the Borrowers), subject to certain exceptions. The Term Loan is secured, subject to certain exceptions, by substantially all of the assets of the Borrowers and the guarantors, including a first-priority pledge of all the capital stock of our subsidiaries directly held by the Borrowers and the guarantors under the Term Loan.
	The Term Loan bears interest at a rate per annum equal to 2.25% plus the greater of the London Interbank Offered Rate (“LIBOR”) or 0.75%. The interest rate on the Term Loan was 3.00% per annum as of December 31, 2014. Interest on the term loan is payable at the end of each LIBOR period, but in no event less frequently than quarterly. The Term Loan was issued at a discount which we are amortizing through Interest expense on the Consolidated Statement of Operations over the life of the Term Loan. As of December 31, 2014, $1.7 million remains unamortized.
	Senior Unsecured Notes
	On January 31, 2014, the Borrowers issued $400.0 million aggregate principal amount of 5.250% Senior Unsecured Notes due 2022 and $400.0 million aggregate principal amount of 5.625% Senior Unsecured Notes due 2024 (together, the “Senior Notes”) in a private placement. The Senior Notes are fully and unconditionally guaranteed on a senior unsecured basis by the Company and each of its direct and indirect domestic subsidiaries that guarantee the Senior Credit Facilities. Interest on the Senior Notes is payable on May 15 and November 15 of each year.
	On or after February 15, 2017, the Borrowers may redeem at any time, or from time to time, some or all of the 5.250% Senior Unsecured Notes due 2022, and on or after February 15, 2019, the Borrowers may also redeem at any time, or from time to time, some or all of the 5.625% Senior Unsecured Notes due 2024. Prior to such dates, the Borrowers may redeem some or all of the Senior Notes subject to a customary make-whole premium. In addition, prior to February 15, 2017, the Borrowers may redeem up to 35% of the aggregate principal amount of each series of Senior Notes with the proceeds of certain equity offerings.
	On October 1, 2014, the Borrowers issued $150.0 million aggregate principal amount of 5.250% Senior Unsecured Notes due 2022 (the “New 2022 Senior Notes”) in a private placement. The New 2022 Senior Notes are of the same class and series as, and otherwise identical to, the 5.250% Senior Unsecured Notes due 2022 that were previously issued by the Borrowers on January 31, 2014, (see—Senior Unsecured Notes above). Interest on the New 2022 Senior Notes is payable on May 15 and November 15 of each year, beginning on November 15, 2014. The New 2022 Senior Notes were issued at a discount of $0.8 million, which we will amortize through Interest expense on the Consolidated Statement of Operations over the life of the New 2022 Senior Notes.
	On October 1, 2014, the Borrowers also issued $450.0 million aggregate principal amount of 5.875% Senior Unsecured Notes due 2025 (the “2025 Senior Notes,” together with the “New 2022 Senior Notes,” the “New Senior Notes”) in a private placement. The New Senior Notes are fully and unconditionally guaranteed on a senior unsecured basis by the Company and each of its direct and indirect wholly owned domestic subsidiaries that guarantee the Senior Credit Facilities. Interest on the 2025 Senior Notes is payable on March 15 and September 15 of each year, beginning on March 15, 2015.
	On or after February 15, 2017, the Borrowers may redeem at any time, or from time to time, some or all of the New 2022 Senior Notes and on or after September 15, 2019, the Borrowers may redeem at any time, or from time to time, some or all of the 2025 Senior Notes. Prior to such dates, the Borrowers may redeem some or all of the New Senior Notes subject to a customary make-whole premium. In addition, prior to February 15, 2017, the Borrowers may redeem up to 35% of the aggregate principal amount of the New 2022 Senior Notes and prior to September 15, 2017, the Borrowers may redeem up to 35% of the aggregate principal amount of the 2025 Senior Notes with the proceeds of certain equity offerings.
	On February 3, 2015, we completed an exchange offer pursuant to which the privately issued Senior Notes and New Senior Notes were exchanged for publicly registered Senior Notes and New Senior Notes having substantially identical terms.
	Revolving Credit Facility
	On January 31, 2014, the Borrowers also entered into a $425.0 million Revolving Credit Facility, which matures in 2019 (the “Revolving Credit Facility”). Borrowing rates under the Revolving Credit Facility are based on LIBOR plus a margin based on our 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. Interest on the Revolving Credit Facility is payable at the end of each LIBOR period, but in no event less frequently than quarterly. The commitment fee based on the amount of unused commitments under the Revolving Credit Facility in 2014, was $1.9 million. As of December 31, 2014, there were no outstanding borrowings under the Revolving Credit Facility. As of December 31, 2014, we had issued letters of credit totaling approximately $20.6 million against the Revolving Credit Facility. The Revolving Credit Facility is unconditionally guaranteed by us and our material existing and future direct and indirect wholly owned domestic subsidiaries (except the Borrowers), subject to certain exceptions. The Revolving Credit Facility is secured, subject to certain exceptions, by substantially all of the assets of the Borrowers and the guarantors, including a first-priority pledge of all the capital stock of our subsidiaries directly held by the Borrowers and the guarantors under the Revolving Credit Facility.
	Our revenues and operating income may fluctuate due to seasonal advertising patterns and influences on advertising markets. Typically, our revenues and operating income are highest in the fourth quarter, during the holiday shopping season, and lowest in the first quarter, as advertisers cut back on spending following the holiday shopping season. Likewise, several of our municipal transit contracts require annual estimated revenue share or guarantees to be paid at the beginning of the contract period. During January of each year, we have a significant upfront payment (approximately $70.0 million) in connection with calendar-year contracts. We have drawn from the Revolving Credit Facility in January 2015 to make these upfront municipal payments and for seasonal cash management purposes. The amount of outstanding borrowings drawn on the Revolving Credit Facility as of March 6, 2015, was $50.0 million and is expected to be repaid from the cash flows from those transit contracts during 2015.
	Debt Covenants
	The Credit Agreement and the indentures governing the Senior Notes and the New Senior Notes contain customary affirmative and negative covenants, subject to certain exceptions, including but not limited to those that limit the Company’s and our subsidiaries’ abilities to (i) pay dividends on, repurchase or make distributions in respect to the Company’s or Finance LLC’s capital stock or make other restricted payments, and (ii) enter into agreements restricting certain subsidiaries’ ability to pay dividends or make other intercompany transfers.
	In addition, the terms of the Credit Agreement require that, as long as any commitments remain outstanding under the Revolving Credit Facility, we maintain a Consolidated Net Secured Leverage Ratio of no greater than 4.0 to 1.0. As of December 31, 2014, our Consolidated Net Secured Leverage Ratio was 1.7 to 1.0, as adjusted to give pro forma effect to the Acquisition in accordance with the Credit Agreement. The Credit Agreement also requires that, in connection with the incurrence of certain indebtedness, we maintain a Consolidated Total Leverage Ratio, which is the ratio of our consolidated total debt to our Consolidated EBITDA for the trailing four consecutive quarters, of no greater than 6.0 to 1.0. As of December 31, 2014, our Consolidated Total Leverage Ratio was 4.7 to 1.0, as adjusted to give pro forma effect to the Acquisition in accordance with the Credit Agreement.
	Letter of Credit Facility
	On January 31, 2014, the Borrowers also entered into a letter of credit facility, pursuant to which we may obtain letters of credit from time to time in an aggregate outstanding face amount of up to $80.0 million. After the first year, the letter of credit facility will automatically extend for successive one-year periods unless either the Borrowers or the issuing bank under it elect not to extend it. The letter of credit facility is unconditionally guaranteed by us and our material existing and future direct and indirect wholly owned domestic subsidiaries (except the Borrowers), subject to certain exceptions, and is secured on an equal and ratable basis by the same collateral that secure the Senior Credit Facilities. The fee under the letter of credit facility in 2014 was immaterial. As of December 31, 2014, we had issued letters of credit totaling approximately $68.9 million against the letter of credit facility.
	Deferred Financing Costs
	As of December 31, 2014, we had deferred financing costs of $36.5 million related fees and expenses associated with the Senior Credit Facilities, Senior Notes, New Senior Notes and letter of credit facility, which are included in Other current assets and Other Assets on the Consolidated Statement of Financial Position. We are amortizing the deferred fees through Interest expense on the Consolidated Statement of Operations over the term of each debt facility.
	Fair Value
	Under the fair value hierarchy, observable inputs such as unadjusted quoted prices in active markets for identical assets or liabilities are defined as Level 1; observable inputs other than quoted prices included within Level 1 that are either directly or indirectly observable for the asset or liability are defined as Level 2; and unobservable inputs for the asset or liability are defined as Level 3. The aggregate fair value of our debt, which is estimated based on quoted market prices of similar liabilities, was approximately $2.2 billion as of December 31, 2014. The fair value of our debt is classified as Level 2 as of December 31, 2014.

Accumulated_Other_Comprehensiv

Accumulated Other Comprehensive Income	12 Months Ended
	Dec. 31, 2014
Accumulated Other Comprehensive Income [Abstract]
Accumulated Comprehensive Income	Accumulated Other Comprehensive Income
	The following table presents the changes in the components of accumulated other comprehensive income (loss).
	(in millions)		Cumulative			Net			Accumulated
			Translation			Actuarial			Other
			Adjustments			Gain			Comprehensive
						(Loss)			Income (Loss)
	As of December 31, 2011		$	(65.3	)	$	(10.3	)	$	(75.6	)
	Other comprehensive income (loss)		11			(1.4		)	9.6
	As of December 31, 2012		(54.3		)	(11.7		)	(66.0		)
	Other comprehensive income (loss) before reclassifications		(14.9		)	5.2			(9.7		)
	Amortization of actuarial losses reclassified to net income(a)		—			0.6			0.6
	Total other comprehensive income (loss), net of tax		(14.9		)	5.8			(9.1		)
	As of December 31, 2013		(69.2		)	(5.9		)	(75.1		)
	Other comprehensive income (loss) before reclassifications		(10.7		)	(3.3		)	(14.0		)
	Amortization of actuarial losses reclassified to net income(a)		—			0.2			0.2
	Deferred tax rate adjustment		—			(1.2		)	(1.2		)
	Total other comprehensive income (loss), net of tax		(10.7		)	(4.3		)	(15.0		)
	As of December 31, 2014		$	(79.9	)	$	(10.2	)	$	(90.1	)
	(a)	See Note 14. Retirement Benefits for additional details of items reclassified from accumulated other comprehensive income to net income.
	Net actuarial gain (loss) included in other comprehensive income (loss) is net of a tax expense of $1.3 million in 2014 and $3.3 million in 2013, and net of a tax benefit of $0.3 million in 2012.

Equity_Notes

Equity (Notes)	12 Months Ended
	Dec. 31, 2014
Equity [Abstract]
Equity	Equity
	On January 15, 2014, 100 shares of our common stock were issued to CBS. On March 14, 2014, our board of directors declared a 970,000 to 1 stock split. As a result of the stock split, the 100 shares of our common stock then outstanding were converted into 97,000,000 shares of our common stock. The effects of the stock split have been applied retroactively. For purposes of calculating earnings per share, 97,000,000 shares were considered outstanding for all periods presented.
	On March 25, 2014, our board of directors granted CBS and certain of its affiliates a waiver of the ownership restrictions contained in our charter, subject to certain initial and ongoing conditions designed to protect our status as a REIT.
	On March 27, 2014, our registration statement on Form S-11 related to our IPO of our common stock was declared effective by the SEC. On April 2, 2014, we completed an IPO of 23,000,000 shares of our common stock, including 3,000,000 shares of our common stock sold pursuant to the underwriters’ option to purchase additional shares, at a price of $28.00 per share. Our total shares issued and outstanding upon completion of the IPO was 120,000,000. (See Note 2. Initial Public Offering.)
	On December 1, 2014, we issued 74,129 shares of our common stock to J&M Holding Enterprises, Inc. (“J&M”), an affiliate of Videri Inc. (“Videri”), in connection with licenses and services to be received under a development and license agreement (the “Videri Agreement”) with J&M and Videri. We also invested $3.0 million in Videri for a minority interest, accounted for as a cost-method investment, in connection with the Videri Agreement.
	On December 31, 2014, we distributed 16,536,001 shares of our common stock as the stock portion of the E&P Purge.
	As of December 31, 2014, 450,000,000 shares of our common stock, par value $0.01 per share, were authorized; 136,624,157 shares were issued and outstanding; and 50,000,000 shares of our preferred stock, par value $0.01 per share, were authorized with no shares issued and outstanding.

Restructuring_Charges

Restructuring Charges	12 Months Ended
	Dec. 31, 2014
Restructuring and Related Activities [Abstract]
Restructuring Charges	Restructuring Charges
	In 2014, we recorded restructuring charges of $9.8 million associated with the reorganization of management, resulting in the departures of Wally Kelly, President and Chief Operating Officer, and Raymond Nowak, Executive Vice President, Chief Administrative Officer and U.S. Chief Financial Officer, from the Company. The restructuring charge is comprised of severance charges, including stock-based compensation of $5.6 million. As of December 31, 2014, $3.9 million in restructuring reserves remained outstanding and is included in Other current liabilities on the Consolidated Statement of Financial Position.
	During 2012, to reduce our cost structure, we recorded restructuring charges of $2.5 million, mainly in the United States segment. The charges principally reflected severance costs associated with the elimination of positions. As of December 31, 2013, all of the restructuring reserves related to the 2012 charges were fully utilized.

Acquisitions_Notes

Acquisitions (Notes)	12 Months Ended
	Dec. 31, 2014
Acquisitions [Abstract]
Acquisition	Acquisition
	On October 1, 2014, we completed the Acquisition for $690.0 million in cash, plus working capital adjustments.
	Our Consolidated Statement of Operations for 2014 includes $55.2 million of revenue and $10.1 million of operating income related to the results of operations of the Acquired Business from the date of its acquisition on October 1, 2014.
	The allocation of the purchase price of the Acquired Business is based on the fair value of assets acquired and liabilities assumed as of October 1, 2014, the effective date of the Acquisition. The preliminary purchase price allocation related to the Acquisition was not final as of December 31, 2014, and is based upon a preliminary valuation, which is subject to change as we obtain additional information, including information regarding fixed assets, intangible assets and certain liabilities.
	The preliminary allocation of the purchase price presented below represents the effect of recording the preliminary estimates of the fair value of assets acquired and liabilities assumed as of the date of the Acquisition, based on the total transaction consideration of $690.0 million in cash, plus working capital adjustments. These preliminary estimates will be revised in future periods. Any changes to the initial estimates of the fair value of the assets and liabilities will be recorded as adjustments to those assets and liabilities and residual amounts will be allocated to goodwill.
	(in millions)		Purchase Price
	Base purchase price		$	690
	Working capital and other adjustments		24.2
	Estimated transaction consideration		$	714.2
	Current assets		$	44.4
	Property, plant and equipment		83.2
	Goodwill		299.2
	Intangible assets(a)		316.6
	Other assets		11.1
	Current liabilities		(34.5		)
	Long-term debt(b)		(1.4		)
	Other liabilities		(4.4		)
	Total net assets acquired		$	714.2
	(a)	Intangible assets included with the preliminary purchase price allocation are as follows:
	(in millions)		Estimated Useful Life		Intangible Assets Allocation
	Permits and leasehold agreements		12 - 20 years		$	244
	Franchise agreements		4 - 15 years		34.8
	Advertising relationships		7 years		16
	Other		1 - 5 years		21.8
					$	316.6
	(b)	In conjunction with the Acquisition, we assumed a total of $1.4 million of long term debt, due to three unrelated third parties. The debt has varying maturities through June 1, 2021. In November 2014, we prepaid one of the debt obligations, leaving a remaining balance of $0.7 million as of December 31, 2014, with varying maturities through January 31, 2017.
	Unaudited Pro Forma Condensed Combined Statements of Operations Information
	The following unaudited pro forma financial information presents our results of operations combined with the Acquired Business as if the Acquisition had occurred as of January 1, 2013. The pro forma information is not necessarily indicative of what the financial position or results of operations actually would have been had the Acquisition been completed as of January 1, 2013. In addition, the unaudited pro forma financial information is not indicative of, nor does it purport to project, our future financial position or operating results. The unaudited pro forma financial information excludes acquisition and integration costs and does not give effect to any estimated and potential cost savings or other operating efficiencies that could result from the Acquisition.
					Year Ended December 31,
	(in millions, except per share amounts)				2014		2013
	Revenues				$	1,505.90	$	1,500.30
	Operating income				193.6		240.1
	Net income				293.6		117.6
	Net income per common share attributable to shareholders of OUTFRONT Media Inc.:
	Basic				$	2.57	$	1.03
	Diluted				$	2.56	$	1.02
	Transaction Costs
	In 2014, we recorded $7.6 million of commitment and other fees in Interest income (expense), net, in the Consolidated Statement of Operations associated with a lender commitment to provide a senior unsecured bridge term loan facility for the purpose of financing the Acquisition in the event we did not complete the offering of the New Senior Notes. In addition we also recorded $10.4 million of other acquisition costs.

StockBased_Compensation

Stock-Based Compensation	12 Months Ended
	Dec. 31, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock-Based Compensation	Stock-Based Compensation
	On March 18, 2014, our board of directors approved the Omnibus Stock Incentive Plan (the “Stock Plan”) and reserved 8,000,000 shares of our common stock for stock-based awards. Under the Stock Plan, the board of directors is authorized to grant awards of options to purchase shares of our common stock (the “OUTFRONT Options”), 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 our 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.
	The Stock Plan also provides for the treatment of awards held by our employees that were originally granted under various CBS stock plans. Prior to our IPO, certain of our employees were granted awards of RSUs, PRSUs and stock options for CBS Class B common stock under the CBS equity incentive plans. At the time of the IPO, substantially all outstanding RSUs and PRSUs for CBS Class B common stock (the “CBS RSUs”) were converted into RSUs and PRSUs for our common stock (the “OUTFRONT RSUs”) under the Stock Plan.
	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- to four-year service period. For PRSU awards, the number of shares an employee earns may range from 0% to 120% based on the outcome of a one year performance condition. Compensation expense is recorded based on the probable outcome of the performance condition. On an annual basis, the board of directors will review actual performance and certify the degree to which performance goals applicable to the award have been met. Forfeitures of RSUs are estimated on the date of grant based on historical forfeiture rates. On an annual basis, adjustments are made to compensation expense based on actual forfeitures and the forfeiture rates are revised as necessary.
	The following table summarizes our stock-based compensation expense for 2014, 2013 and 2012.
			Year Ended December 31,
	(in millions)		2014				2013				2012
	RSUs and PRSUs		$	13.1			$	6.8			$	5.2
	Stock options		2.9				0.7				0.5
	Stock-based compensation expense, before income taxes		16				7.5				5.7
	Tax benefit		(3.0		)		(3.0		)		(2.3		)
	Stock-based compensation expense, net of tax		$	13			$	4.5			$	3.4
	As of December 31, 2014, total unrecognized compensation cost related to non-vested RSUs and PRSUs was $18.1 million, which is expected to be recognized over a weighted average period of 2.8 years, and total unrecognized compensation cost related to non-vested stock options was $0.6 million, which is expected to be recognized over a weighted average period of 2.6 years.
	RSUs and PRSUs
	On March 27, 2014, 256,172 non-vested CBS RSUs held by our employees were converted into 561,021 non-vested OUTFRONT RSUs. The number of RSUs was converted at a ratio of approximately 2.2 to 1.0 to preserve the fair value of the awards both before and after conversion.
	The following table summarizes the activity of the RSUs and PRSUs issued to our employees.
			CBS RSUs							OUTFRONT RSUs
			Activity			Weighted Average Per Share Grant Date Fair Market Value				Activity			Weighted Average Per Share Grant Date Fair Market Value
	Non-vested as of December 31, 2013		472,490			$	32.09
	Employee transfers and grants		11,875			34.66
	Vested		(157,723	)		22.51
	Forfeited		(2,909	)		37.67
	Non-vested before conversion		323,733			36.8
	CBS RSUs converted to OUTFRONT RSUs		(256,172	)		37.77
	Non-vested OUTFRONT RSUs converted from CBS RSUs									561,021			$	17.24
	Non-vested CBS RSUs not converted to OUTFRONT RSUs(a)		67,561			33.16
	Granted:
	RSUs									488,729			26.76
	RSUs issued in connection with special dividend(b)									161,720			26.73
	PRSUs									182,844			29.97
	Dividend equivalents
	Vested:
	RSUs		(67,561	)		33.16				(33,177	)		16.29
	PRSUs									(29,458	)		15.28
	Forfeitures:
	RSUs									(37,788	)		24
	PRSUs									(15,289	)		26.39
	Dividend equivalents
	Non-vested as of December 31, 2014		—			—				1,278,602			21.92
	(a)	Reflects CBS RSUs which vested in April 2014.
	(b)	Represents an adjustment to the outstanding awards for the E&P Purge pursuant to the anti-dilution provisions of the Stock Plan.
	The total fair value of CBS RSUs that vested was $15.1 million during 2014, $16.4 million during 2013 and $11.4 million during 2012. The total fair value of OUTFRONT RSUs and PRSUs that vested was $1.6 million during 2014.
	Stock Options
	Stock options vest over a four-year service period and expire eight or ten years from the date of grant. Forfeitures are estimated on the date of grant based on historical forfeiture rates. On an annual basis, adjustments are made to compensation expense based on actual forfeitures and the forfeiture rates are revised as necessary.
	The weighted average fair value of stock options as of the grant date was $14.04 in 2013 and $8.83 in 2012, respectively. Compensation expense for stock options is determined based on the grant date fair value of the award using the Black-Scholes options-pricing model with the following weighted average assumptions:
			Year Ended December 31,
			2014		2013			2012
	Expected dividend yield		N/A		1.38	%		2	%
	Expected stock price volatility		N/A		35	%		40.2	%
	Risk-free interest rate		N/A		1.2	%		1.01	%
	Expected term of options (years)		N/A		5			5.02
	N/A - Not applicable.
	The expected stock price volatility was determined using a weighted average of historical volatility for CBS Class B Common Stock and implied volatility of publicly traded options to purchase CBS Class B Common Stock. Given the existence of an actively traded market for CBS options, we were able to derive implied volatility using publicly traded options to purchase CBS Class B Common Stock that were trading near the grant date of the employee stock options at a similar exercise price and a remaining term of greater than one year.
	The risk-free interest rate was based on a U.S. Treasury rate in effect on the date of grant with a term equal to the expected life. The expected term was determined based on historical employee exercise and post-vesting termination behavior. The expected dividend yield represented the future expectation of the dividend yield based on current rates and historical patterns of dividend changes.
	On July 16, 2014, 219,741 outstanding CBS stock options held by our active employees were converted into 409,207 Outdoor Options. Vested outstanding CBS stock options held by former employees of the Company were not converted into Outdoor Options. The CBS stock options were converted at a ratio of approximately 1.9 to 1.0 to preserve the intrinsic value of the award at the time of conversion.
	The following table summarizes the activity of CBS’s stock options and OUTFRONT stock options issued to our employees.
			CBS			CBS				OUTFRONT			OUTFRONT Weighted Average Exercise Price
			Stock Options			Weighted Average Exercise Price				Stock Options
	Outstanding as of December 31, 2013		399,581			$	29.3
	Exercised		(123,574	)		22.05
	Forfeited or expired		(39,405	)		30.67
	CBS stock options converted to OUTFRONT stock options		(219,741	)		33.27
	Outstanding OUTFRONT stock options converted from CBS stock options									409,207			$	17.87
Adjustment in connection with special dividend(a)									63,898			N/A
Exercised									(3,519	)		12.73
Forfeited or expired									(18,696	)		19.96
Outstanding as of December 31, 2014									450,890			15.29
Exercisable as of December 31, 2014		16,861			27.38				191,445			10.62
(a)	Represents an adjustment to the outstanding awards for the E&P Purge pursuant to the anti-dilution provisions of the Stock Plan.
The following table summarizes other information relating to stock option exercises during the years ended December 31, 2014, 2013 and 2012.
		Year Ended December 31,
(in millions)		2014				2013				2012
Cash paid to CBS by our employees for stock option exercises		$	5			$	4			$	6.5
Tax benefit of CBS stock option exercises		—				2.5				0.8
Intrinsic value of CBS stock option exercises		5.3				6.1				1.9
Activity related to exercises by our employees of our stock options was immaterial.
The following table summarizes information concerning outstanding and exercisable stock options to purchase our common stock under the Stock Plan as of December 31, 2014.
		Outstanding									Exercisable
Range of		Number			Remaining		Weighted				Number of			Weighted
Exercise Price		of			Contractual		Average				Options			Average
		Options			Life (Years)		Exercise							Exercise
							Price							Price
$0 to 4.99		64,556			2.15		$	2.43			64,556			$	2.43
$5 to 9.99		23,446			3.17		6.25				23,446			6.25
$10 to 14.99		180,908			3.55		12.64				67,162			12.49
$20 to 24.99		78,567			6.12		20.07				10,429			20.07
$25 to 29.99		103,413			6.72		26.39				25,852			26.39
		450,890									191,445
Stock options outstanding as of December 31, 2014, have a weighted average remaining contractual life of 4.49 years and the total intrinsic value for “in-the-money” options, based on the closing stock price of our common stock of $26.84, was $5.2 million. Stock options exercisable as of December 31, 2014, have a weighted average remaining contractual life of 2.85 years and the total intrinsic value for “in-the-money” exercisable options was $3.1 million.

Retirement_Benefits

Retirement Benefits	12 Months Ended
	Dec. 31, 2014
Compensation and Retirement Disclosure [Abstract]
Retirement Benefits	Retirement Benefits
	We sponsor two defined benefit pension plans covering specific groups of employees in Canada and the U.S.
	The benefits for the pension plan in Canada are based primarily on an employee’s years of service and average pay near retirement. Participating employees in this plan are vested after two years of service or immediately, depending on the province of their employment. We fund this plan in accordance with the rules and regulations of the Pension Benefits Act of the Province of Ontario, Canada. Plan assets consist principally of equity securities, corporate bonds and government related securities included in a trust.
	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 plan 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)		2014				2013			2012
	Benefit obligation, beginning of year		$	46			$	52.7		$	46.8
	Service cost		1.4				1.7			1.5
	Interest cost		2.2				2			2.2
	Actuarial (gain) loss		7.2				(5.1		)	2.7
	Benefits paid		(1.8		)		(1.6		)	(2.2		)
	Cumulative translation adjustments		(4.1		)		(3.7		)	1.7
	Benefit obligation, end of year		$	50.9			$	46		$	52.7
	The following table sets forth the change in plan assets for our pension plans.
			As of December 31,
	(in millions)		2014				2013
	Fair value of plan assets, beginning of year		$	43.7			$	40.1
	Actual return on plan assets		4.1				4.5
	Employer contributions		1.6				3.8
	Benefits paid		(1.8		)		(1.6		)
	Cumulative translation adjustments		(3.5		)		(3.1		)
	Fair value of plan assets, end of year		$	44.1			$	43.7
	The funded 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)		2014				2013
	Funded status, end of year		$	(6.8	)		$	(2.3	)
	Amounts recognized on the Consolidated Statement of Financial Position:
	Other noncurrent liabilities		(6.8		)		(2.3		)
	Net amounts recognized		(6.8		)		(2.3		)
	The following amounts were recognized in accumulated other comprehensive loss on the Consolidated Statement of Financial Position.
			As of December 31,
	(in millions)		2014				2013
	Net actuarial loss		$	(14.5	)		$	(10.2	)
	Deferred tax rate adjustment		(1.2		)		—
	Deferred income taxes		5.5				4.3
	Net amount recognized in accumulated other comprehensive loss		(10.2		)		(5.9		)
	The accumulated benefit obligation for the defined benefit pension plans was $46.6 million as of December 31, 2014, and $41.6 million as of December 31, 2013.
	The information for the pension plans with an accumulated benefit obligation in excess of plan assets is set forth below.
			As of December 31,
	(in millions)		2014				2013(a)
	Projected benefit obligation		$	50.9			$	2
	Accumulated benefit obligation (a)		46.6				1.9
	Fair value of plan assets (a)		44.1				1.8
	(a)	As of December 31, 2013, the fair value of plan assets exceeded the accumulated benefit obligation for our pension plan in Canada.
	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)		2014				2013			2012
	Service cost		$	1.4			$	1.7		$	1.5
	Interest cost		2.2				2			2.2
	Expected return on plan assets		(2.5		)		(2.4		)	(2.1		)
	Amortization of actuarial losses		0.3				1			0.9
	Net periodic pension cost		$	1.4			$	2.3		$	2.5
	(in millions)		Year Ended December 31, 2014
	Actuarial losses		$	(5.7	)
	Amortization of actuarial losses(a)		0.3
	Cumulative translation adjustments		1
	Deferred tax rate adjustment		(1.2		)
			(5.6		)
	Deferred income taxes		1.3
	Recognized in other comprehensive loss, net of tax		$	(4.3	)
	(a)	Reflects amounts reclassified from accumulated other comprehensive income (loss) to net income.
	Estimated net actuarial losses related to the defined benefit pension plans of approximately $0.9 million, will be amortized from accumulated other comprehensive loss into net periodic pension costs in 2015.
		As of and for the Year Ended December 31,
		2014			2013
Weighted average assumptions used to determine benefit obligations:
Discount rate		4	%		5	%
Rate of compensation increase		3			3
Weighted average assumptions used to determine net periodic cost:
Discount rate		5			4
Expected long-term return on plan assets		5.6			6
Rate of compensation increase		3			3
For each 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, 2014, we invested approximately 40% in fixed income instruments, 53% in equity instruments, and the remainder in cash, cash equivalents and other investments.
The following tables set forth our pension plan assets measured at fair value on a recurring basis as of December 31, 2014 and 2013. 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, 2014
(in millions)		Level 1				Level 2			Level 3			Total
Cash and cash equivalents(a)		$	1.2			$	1.8		$	—		$	3
Fixed income securities:
Government related securities		1.3				3.2			—			4.5
Corporate bonds(b)		—				13.3			—			13.3
Equity securities(c):
U.S. equity		—				7.7			—			7.7
International equity		—				15.6			—			15.6
Other		—				—			—			—
Total assets		$	2.5			$	41.6		$	—		$	44.1
		As of December 31, 2013
(in millions)		Level 1				Level 2			Level 3			Total
Cash and cash equivalents(a)		$	—			$	2.6		$	—		$	2.6
Fixed income securities:
Government related securities		1.4				6.3			—			7.7
Corporate bonds(b)		—				9.6			—			9.6
Equity securities(c):
U.S. equity		4.9				2.6			—			7.5
International equity		—				16.2			—			16.2
Other		—				0.1			—			0.1
Total assets		$	6.3			$	37.4		$	—		$	43.7
(a)	Assets categorized as Level 2 reflect investments in money market funds.
(b)	Securities of diverse industries, substantially all investment grade.
(c)	Assets categorized as Level 2 reflect investments in common collective funds.
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)		2015		2016		2017		2018	2019		2020-2024
Estimated future benefit payments for pension plans		1.2		1.2		1.3		1.5	1.7		12.9
We expect to contribute $2.2 million to our pension plans in 2015.
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 $2.0 million in 2014, $1.6 million in 2013 and $1.7 million in 2012. 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
CBS sponsored defined contribution plans in which substantially all of our employees meeting eligibility requirements were able to participate. Employer contributions to such plans were $3.7 million in 2013 and $3.4 million in 2012. On January 1, 2014, the account balances for our employees were transferred to a defined contribution plan sponsored by us and employer contributions for the plan was $3.8 million in 2014.

Income_Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes
	Prior to the Separation, we were a member of CBS’s consolidated tax group and were taxable as a regular domestic C corporation for U.S. federal income tax purposes. Pursuant to the tax matters agreement that we entered into with CBS, we are liable to pay CBS for any taxes imposed on or related to us while we were a member of the CBS consolidated tax group. After the Separation, CBS ceased to own at least 80% of our outstanding common stock, and as a result, we were no longer a member of CBS’s consolidated tax group.
	As of July 17, 2014, we believe we are organized in conformity with the requirements for qualification and taxation as a REIT under the Code, and, accordingly, we have not provided for U.S. federal income tax on our REIT taxable income that we distributed to our stockholders. We have elected to treat our subsidiaries that participate in certain non-REIT qualifying activities, and our foreign subsidiaries, as TRSs. As such, we have provided for their federal, state and foreign income taxes.
	In 2014, as a result of our REIT conversion, substantially all Deferred income tax liabilities, net, was reversed into Net income via a non-cash benefit of approximately $235.6 million. As a result of our REIT conversion, our effective tax rate for the second half of 2014 was substantially lower than previous periods. Prior to the Separation, our income tax provisions were calculated on a separate tax return basis, with us as the taxpayer, even though our U.S. operating results were included in the consolidated federal, and certain state and local income tax returns of CBS. We believe that the assumptions and estimates used to determine these tax amounts were reasonable. However, the consolidated financial statements may not necessarily reflect our income tax expense or tax payments, or what our tax amounts would have been if we had been a stand-alone company operating as a REIT during the periods prior to the Separation.
	Cash paid for income taxes was assumed to be $53.0 million in 2014, $112.8 million in 2013 and $96.5 million in 2012.
	The U.S. and foreign components of Income before benefit (provision) for income taxes and equity in earnings of investee companies were as follows:
			Year Ended December 31,
	(in millions)		2014			2013			2012
	United States		$	102.8		$	239.8		$	201.9
	Foreign		(4.8		)	(2.2		)	(1.7		)
	Income before benefit (provision) for income taxes and equity in earnings of investee companies		$	98		$	237.6		$	200.2
	The following table reconciles Income before benefit (provision) for income taxes and equity in earnings of investee companies to REIT taxable income for the period July 17, 2014, through December 31, 2014.
						Year Ended December 31,
	(in millions)					2014
	Income before benefit (provision) for income taxes and equity in earnings of investee companies					$	98
	Income before benefit (provision) for income taxes and equity in earnings of investee companies for the period January 1, 2014, through July 16, 2014					(57.9		)
	Income before benefit (provision) for income taxes and equity in earnings of investee companies for the period July 17, 2014, through December 31, 2014					40.1
	Income of TRSs					(1.6		)
	Income from REIT operations					38.5
	Book depreciation in excess of tax depreciation					15
	Book amortization in excess of tax amortization					21.3
	Book/tax differences - stock-based compensation					8.1
	Book/tax differences - capitalized costs					7.4
	Book/tax differences - investments in joint ventures					2.5
	Book/tax differences - other					4.2
	REIT taxable income for the period July 17, 2014, through December 31, 2014 (estimated)					$	97
	The components of the Benefit (provision) for income taxes are as follows:
			Year Ended December 31,
	(in millions)		2014			2013			2012
	Current:
	Federal		$	29.9		$	85.1		$	71.8
	State and local		9.8			21.8			18.9
	Foreign		3.8			5.2			4.9
			43.5			112.1			95.6
	Deferred tax (benefit) liability:
	Federal		(198.0		)	(3.6		)	(5.1		)
	State and local		(50.3		)	(10.0		)	1.7
	Foreign		(1.2		)	(1.9		)	(3.2		)
			(249.5		)	(15.5		)	(6.6		)
	(Benefit) provision for income taxes		$	(206.0	)	$	96.6		$	89
	Excluding the non-cash benefit recorded as a result of our REIT conversion in 2014, the effective income tax rate was 30.3% in 2014, 40.7% in 2013 and 44.5% in 2012.
	The difference between income taxes expected at the U.S. federal statutory income tax rate of 35% and the Benefit (provision) for income taxes is summarized as follows:
			Year Ended December 31,
	(in millions)		2014			2013			2012
	Taxes on income at U.S. statutory rate		$	34.3		$	83.2		$	70.1
	REIT dividends paid deduction		(13.5		)	—			—
	State and local taxes, net of federal tax benefit		4.8			7.6			13.4
	Effect of foreign operations		2.9			4			2.2
	Deferred tax adjustment due to REIT conversion		(235.6		)	—			—
	Other, net(a)		1.1			1.8			3.3
	(Benefit) provision for income taxes		$	(206.0	)	$	96.6		$	89
	(a)	For 2012, other primarily reflects a charge related to our domestic production deduction.
	The following table is a summary of the components of deferred income tax assets and liabilities.
			As of December 31,
	(in millions)		2014			2013
	Deferred income tax assets:
	Provision for expenses and losses		$	2.8		$	31.3
	Postretirement and other employee benefits		4.6			9.9
	Tax credit and loss carryforwards		10.9			14.6
	Other		—			0.1
	Total deferred income tax assets		18.3			55.9
	Valuation allowance		(6.9		)	(10.1		)
	Deferred income tax assets, net		11.4			45.8
	Deferred income tax liabilities:
Property, equipment and intangible assets		(18.8		)	(309.3		)
Other		—			(0.5		)
Total deferred income tax liabilities		(18.8		)	(309.8		)
Deferred income tax liabilities, net		$	(7.4	)	$	(264.0	)
As of December 31, 2014, we had net operating loss carryforwards for federal, state and local, and foreign jurisdictions of $33.7 million. Approximately $20.9 million of these losses may be carried forward indefinitely, subject to limitations imposed by local tax laws. The remaining net operating losses expire in various years from 2015 through 2027.
Deferred income tax assets were reduced by a valuation allowance of $6.9 million as of December 31, 2014, and $10.1 million as of December 31, 2013, principally relating to income tax benefits from net operating losses which are not expected to be realized.
As a result of the Separation, we have been allocated a portion of the CBS’s foreign unremitted earnings as of July 16, 2014. Our share of the undistributed earnings of foreign subsidiaries not included in our consolidated federal income tax return that could be subject to additional income taxes if remitted was approximately $214.4 million as of December 31, 2014. No provision has been recorded for the U.S. or foreign taxes that could result from the remittance of such undistributed earnings since we intend to distribute only the portion of such earnings which would be remitted in tax-free transactions, and intend to reinvest the remainder outside the U.S. indefinitely. The determination of the unrecognized U.S. federal deferred income tax liability for undistributed earnings is not practical.
The following table sets forth the change in the reserve for uncertain tax positions, excluding related accrued interest and penalties.
(in millions)
As of January 1, 2012		$	5.4
Additions for current year tax positions		3.8
Reductions for prior year tax positions		(4.3		)
As of December 31, 2012		4.9
Additions for current year tax positions		0.2
Reductions for prior year tax positions		(1.1		)
As of December 31, 2013		4
Additions for current year tax positions		0.1
Reductions for prior year tax positions		(2.9		)
As of December 31, 2014		$	1.2
During 2014, reductions for prior year tax positions includes $2.1 million of liabilities which were transferred to CBS pursuant to our tax matters agreement. The reduction in this liability did not impact our provision for income taxes during the year. The reserve for uncertain tax positions of $1.2 million as of December 31, 2014, includes $0.8 million which would affect our effective income tax rate if and when 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_Notes

Earnings Per Share ("EPS") (Notes)	12 Months Ended
	Dec. 31, 2014
Earnings Per Share [Abstract]
Earnings Per Share (“EPS”)	Earnings Per Share (“EPS”)
			Year Ended December 31,
	(in millions)		2014		2013		2012
	Net income		$	306.9	$	143.5	$	113.4
	Weighted average shares for basic EPS		114.3		114.3		114.3
	Dilutive potential shares from grants of RSUs, PRSUs and stock options(a)		0.5		0.5		0.5
	Weighted average shares for diluted EPS		114.8		114.8		114.8
	(a)	The potential impact of an aggregate 0.2 million granted RSUs, PRSUs and stock options for 2014 was antidilutive.

Commitment_and_Contingencies

Commitment and Contingencies	12 Months Ended
	Dec. 31, 2014
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies
	Off-Balance Sheet Commitments
	Our off-balance sheet commitments primarily consist of operating lease arrangements and guaranteed minimum franchise payments. These arrangements result from our normal course of business and represent obligations that are payable over several years.
	We have long-term operating leases for office space, billboard sites and equipment, which expire at various dates. Certain leases contain renewal and escalation clauses.
	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, 2014, minimum rental payments under non-cancellable operating leases with terms in excess of one year and guaranteed minimum franchise payments are as follows:
	(in millions)	Operating		Guaranteed
		Leases		Minimum
				Franchise
				Payments
	2015	$	122.1	$	173.5
	2016	121.7		56
	2017	101.6		43.2
	2018	86.8		40.9
	2019	73.8		27.1
	2020 and thereafter	432.5		44.6
	Total minimum payments	$	938.5	$	385.3
	Rent expense was $317.4 million in 2014, $292.0 million in 2013 and $283.2 million in 2012, including contingent rent amounts of $59.5 million in 2014, $35.7 million in 2013 and $28.6 million in 2012. Rent expense is primarily reflected in operating expenses on the Consolidated Statements of Operations and includes rent on cancellable leases and leases with terms under one year, as well as contingent rent, none of which are included in the operating lease commitments in the table above.
	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. The outstanding letters of credit and surety bonds approximated $103.3 million as of December 31, 2014, 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.
	Videri
	As of December 31, 2014, pursuant to the Videri Agreement, we agreed to issue 0.9 million additional shares of our common stock to Videri and J&M, as applicable, upon the satisfaction of certain milestones.

Segment_Information

Segment Information	12 Months Ended
	Dec. 31, 2014
Segment Reporting [Abstract]
Segment Information	Segment Information
	The following tables set forth our financial performance by segment. We manage our operations through two segments—United States and International.
			Year Ended December 31,
	(in millions)		2014			2013			2012
	Revenues:
	United States		$	1,198.80		$	1,130.10		$	1,098.60
	International		155			163.9			186
	Total revenues		$	1,353.80		$	1,294.00		$	1,284.60
	We present Operating income (loss) before Depreciation, Amortization, Net gain (loss) on dispositions, Stock-based compensation, Restructuring charges and Acquisition costs (“Adjusted OIBDA”) as the primary measure of profit and loss for our operating segments in accordance with FASB guidance for segment reporting.
			Year Ended December 31,
	(in millions)		2014			2013			2012
	Net income		$	306.9		$	143.5		$	113.4
	(Benefit) provision for income taxes		(206.0		)	96.6			89
	Equity in earnings of investee companies, net of tax		(2.9		)	(2.5		)	(2.2		)
	Interest expense (income), net		84.8			—			—
	Other (income) expense, net		0.3			1.2			1
	Operating income		183.1			238.8			201.2
	Restructuring charges(a)		9.8			—			2.5
	Acquisition costs(a)		10.4			—			—
	Net gain on dispositions		(2.5		)	(27.3		)	2.2
	Depreciation and amortization		202.2			195.8			196.8
	Stock-based compensation(a)		10.4			7.5			5.7
	Total Adjusted OIBDA		$	413.4		$	414.8		$	408.4
	Adjusted OIBDA:
	United States		$	416.2		$	406.4		$	385.4
	International		24.3			29.1			30.5
	Corporate		(27.1		)	(20.7		)	(7.5		)
	Total Adjusted OIBDA		$	413.4		$	414.8		$	408.4
	(a)	In 2014, restructuring charges (including stock-based compensation of $5.6 million), costs related to the Acquisition and stock-based compensation are classified as Corporate expense.
			Year Ended December 31,
	(in millions)		2014			2013			2012
	Operating income (loss):
	U.S.		$	244.3		$	267.1		$	216.4
	International		(3.5		)	(0.1		)	(2.0		)
	Corporate		(57.7		)	(28.2		)	(13.2		)
	Total operating income		$	183.1		$	238.8		$	201.2
	Net (gain) loss on dispositions:
	U.S.		$	(2.5	)	$	(27.5	)	$	1.6
	International		—			0.2			0.6
	Total gain on dispositions		$	(2.5	)	$	(27.3	)	$	2.2
	Depreciation and amortization:
	U.S.		$	174.4		$	166.8		$	165.6
	International		27.8			29			31.2
	Total depreciation and amortization		$	202.2		$	195.8		$	196.8
	Capital expenditures:
	U.S.		$	56.8		$	54.1		$	42.5
	International		7.4			6.8			5.7
	Total capital expenditures		$	64.2		$	60.9		$	48.2
			As of December 31,
	(in millions)		2014			2013			2012
	Assets:
	U.S.		$	3,704.20		$	3,027.60		$	3,114.40
	International		270.4			327.9			350.5
	Corporate		49			—			—
	Total assets		$	4,023.60		$	3,355.50		$	3,464.90
			Year Ended December 31,
	(in millions)		2014			2013			2012
	Revenues(a):
	United States		$	1,198.80		$	1,130.10		$	1,098.60
	Canada		82.5			84.7			99.2
	Latin America		72.5			79.2			86.8
	Total revenues		$	1,353.80		$	1,294.00		$	1,284.60
	(a)	Revenues classifications are based on customers’ locations.
			As of December 31,
(in millions)		2014			2013			2012
Long-lived assets(a):
United States		$	3,423.60		$	2,768.50		2,782.70
Canada		112			138.1			193.7
Latin America		94.5			107.6			159.3
Total long-lived assets		$	3,630.10		$	3,014.20		$	3,135.70
(a)	Reflects total assets less current assets, investments and non-current deferred tax assets.

Condensed_Consolidating_Financ

Condensed Consolidating Financial Information (Notes)	12 Months Ended
	Dec. 31, 2014
Condensed Consolidating Financial Information [Abstract]
Condensed Consolidating Financial Information	Condensed Consolidating Financial Information
	We and our material existing and future direct and indirect 100% owned domestic subsidiaries (except the Borrowers under the Senior Credit Facilities) guarantee the obligations under the Term Loan and the Revolving Credit Facility. The Senior Notes and New Senior Notes are fully and unconditionally, and jointly and severally guaranteed on a senior unsecured basis by us and each of our direct and indirect wholly owned domestic subsidiaries that guarantees the Senior Credit Facilities (see Note 8. Long-Term Debt). The Parent Company, OUTFRONT Media Inc., and the Subsidiary Issuer, Outfront Media Capital LLC, were formed in preparation for the split-off. The balances and activity with respect to these entities were minimal prior to our incurrence of indebtedness pursuant to the Senior Credit Facilities and the Senior Notes in January 2014. Outfront Media Capital Corporation, which was also formed in preparation for the split-off, is a co-issuer finance subsidiary with no assets or liabilities, and therefore has not been included in the tables below. The following condensed consolidating schedules present financial information on a combined basis in conformity with the SEC’s Regulation S-X, Rule 3-10.
		As of December 31, 2014
	(in millions)	Parent Company			Subsidiary Issuer			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated
	Current assets:
	Cash and cash equivalents	$	—		$	11.5		$	8.8		$	8.2		$	—		$	28.5
	Receivables, less allowances	—			—			186.5			31			—			217.5
	Other current assets	—			5.3			83.5			20.5			—			109.3
	Total current assets	—			16.8			278.8			59.7			—			355.3
	Property and equipment, net	—			—			683.3			99.6			—			782.9
	Goodwill	—			—			2,050.60			103.6			—			2,154.20
	Intangible assets	—			—			633			0.2			—			633.2
	Investment in subsidiaries	1,445.50			3,613.00			208.1			—			(5,266.6		)	—
	Other assets	—			31.2			59.5			7.3			—			98
	Intercompany	—			—			75.1			62.9			(138.0		)	—
	Total assets	$	1,445.50		$	3,661.00		$	3,988.40		$	333.3		$	(5,404.6	)	$	4,023.60
	Total current liabilities	$	—		$	17.9		$	219.1		$	18.2		$	—		$	255.2
	Long-term debt	—			2,197.60			0.7			—			—			2,198.30
	Deferred income tax liabilities, net	—			—			—			17.2			—			17.2
	Asset retirement obligation	—			—			28.3			8.3			—			36.6
	Deficit in excess of investment of subsidiaries	—			—			2,167.50			—			(2,167.5		)	—
	Other liabilities	—			—			64.4			6.4			—			70.8
	Intercompany	—			—			62.9			75.1			(138.0		)	—
	Total liabilities	—			2,215.50			2,542.90			125.2			(2,305.5		)	2,578.10
	Total stockholders’ equity	1,445.50			1,445.50			1,445.50			208.1			(3,099.1		)	1,445.50
	Total liabilities and stockholders’ equity	$	1,445.50		$	3,661.00		$	3,988.40		$	333.3		$	(5,404.6	)	$	4,023.60
		As of December 31, 2013
	(in millions)	Parent Company			Subsidiary Issuer			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated
	Current assets:
	Cash and cash equivalents	$	—		$	—		$	2.1		$	27.7		$	—		$	29.8
	Receivables, less allowances	—			—			146			32.8			—			178.8
	Other current assets	—			—			89.1			19.5			—			108.6
	Total current assets	—			—			237.2			80			—			317.2
	Property and equipment, net	—			—			628.1			127.3			—			755.4
	Goodwill	—			—			1,751.60			114.1			—			1,865.70
	Intangible assets	—			—			364.2			0.2			—			364.4
	Investment in subsidiaries	—			—			232.9			—			(232.9		)	—
	Other assets	—			—			46.5			6.3			—			52.8
	Intercompany	—			—			66			55.7			(121.7		)	—
	Total assets	$	—		$	—		$	3,326.50		$	383.6		$	(354.6	)	$	3,355.50
	Total current liabilities	$	—		$	—		$	168.3		$	43.9		$	—		$	212.2
	Deferred income tax liabilities, net	—			—			259.4			29.1			—			288.5
	Asset retirement obligation	—			—			23.1			8.6			—			31.7
	Other liabilities	—			—			65.6			3.1			—			68.7
	Intercompany	—			—			55.7			66			(121.7		)	—
	Total liabilities	—			—			572.1			150.7			(121.7		)	601.1
	Total invested equity	—			—			2,754.40			232.9			(232.9		)	2,754.40
	Total liabilities and invested equity	$	—		$	—		$	3,326.50		$	383.6		$	(354.6	)	$	3,355.50
		Year Ended December 31, 2014
	(in millions)	Parent Company			Subsidiary Issuer			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated
	Revenues:
	Billboard	$	—		$	—		851			121.1			$	—		$	972.1
	Transit and other	—			—			347.8			33.9			—			381.7
	Total revenues	—			—			1,198.80			155			—			1,353.80
	Expenses:
	Operating	—			—			626.1			100.4			—			726.5
	Selling, general and administrative	1.3			—			192.7			30.3			—			224.3
	Restructuring charges	—			—			9.8			—			—			9.8
	Acquisition costs	—			—			10.4			—			—			10.4
	Net (gain) loss on dispositions	—			—			(2.5		)	—			—			(2.5		)
	Depreciation	—			—			84.5			22.7			—			107.2
	Amortization	—			—			89.9			5.1			—			95
	Total expenses	1.3			—			1,010.90			158.5			—			1,170.70
	Operating income (loss)	(1.3		)	—			187.9			(3.5		)	—			183.1
Interest income (expense), net	—			(84.8		)	(0.2		)	0.2			—			(84.8		)
Other income (expenses)	—			—			—			(0.3		)	—			(0.3		)
Income before income taxes and equity earnings of investee	(1.3		)	(84.8		)	187.7			(3.6		)	—			98
Provision for income taxes	—			—			209.7			(3.7		)	—			206
Equity in earnings of investee companies, net of tax	308.2			393			(89.2		)	0.7			(609.8		)	2.9
Net income	$	306.9		$	308.2		$	308.2		$	(6.6	)	$	(609.8	)	$	306.9
Net income	$	306.9		$	308.2		$	308.2		$	(6.6	)	$	(609.8	)	$	306.9
Other comprehensive income (loss), net of tax:
Cumulative translation adjustments	(10.7		)	(10.7		)	(10.7		)	(10.7		)	32.1			(10.7		)
Net actuarial loss	(3.1		)	(3.1		)	(3.1		)	(2.9		)	9.1			(3.1		)
Deferred tax rate adjustment	(1.2		)	(1.2		)	(1.2		)	(1.2		)	3.6			(1.2		)
Total other comprehensive income (loss), net of tax	(15.0		)	(15.0		)	(15.0		)	(14.8		)	44.8			(15.0		)
Total comprehensive income	$	291.9		$	293.2		$	293.2		$	(21.4	)	$	(565.0	)	$	291.9
	Year Ended December 31, 2013
(in millions)	Parent Company			Subsidiary Issuer			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated
Revenues:
Billboard	$	—		$	—		$	796.6		$	129.1		$	—		$	925.7
Transit and other	—			—			333.5			34.8			—			368.3
Total revenues	—			—			1,130.10			163.9			—			1,294.00
Expenses:
Operating	—			—			584.2			102.7			—			686.9
Selling, general and administrative	—			—			167.7			32.1			—			199.8
Net (gain) loss on dispositions	—			—			(27.5		)	0.2			—			(27.3		)
Depreciation	—			—			80.7			23.8			—			104.5
Amortization	—			—			86.1			5.2			—			91.3
Total expenses	—			—			891.2			164			—			1,055.20
Operating income	—			—			238.9			(0.1		)	—			238.8
Other income (expenses)	—			—			(0.2		)	(1.0		)	—			(1.2		)
Income before income taxes and equity earnings of investee	—			—			238.7			(1.1		)	—			237.6
Provision for income taxes	—			—			(93.3		)	(3.3		)	—			(96.6		)
Equity in earnings of investee companies, net of tax	—			—			(1.9		)	—			4.4			2.5
Net income	$	—		$	—		$	143.5		$	(4.4	)	$	4.4		$	143.5
Net income	$	—		$	—		$	143.5		$	(4.4	)	$	4.4		$	143.5
Other comprehensive income (loss), net of tax:
Cumulative translation adjustments	—			—			(14.9		)	(14.9		)	14.9			(14.9		)
Net actuarial loss	—			—			5.8			5.6			(5.6		)	5.8
Total other comprehensive income (loss), net of tax	—			—			(9.1		)	(9.3		)	9.3			(9.1		)
Total comprehensive income	$	—		$	—		$	134.4		$	(13.7	)	$	13.7		$	134.4
	Year Ended December 31, 2012
(in millions)	Parent Company			Subsidiary Issuer			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated
Revenues:
Billboard	$	—		$	—		$	770.7		$	142.9		$	—		$	913.6
Transit and other	—			—			327.9			43.1			—			371
Total revenues	—			—			1,098.60			186			—			1,284.60
Expenses:
Operating	—			—			577.9			122.2			—			700.1
Selling, general and administrative	—			—			148.5			33.3			—			181.8
Restructuring charges	—			—			1.8			0.7			—			2.5
Net (gain) loss on dispositions	—			—			1.6			0.6			—			2.2
Depreciation	—			—			80.4			25.5			—			105.9
Amortization	—			—			85.2			5.7			—			90.9
Total expenses	—			—			895.4			188			—			1,083.40
Operating income (loss)	—			—			203.2			(2.0		)	—			201.2
Other income (expenses)	—			—			(0.1		)	(0.9		)	—			(1.0		)
Income before income taxes and equity earnings of investee	—			—			203.1			(2.9		)	—			200.2
Provision for income taxes	—			—			(87.3		)	(1.7		)	—			(89.0		)
Equity in earnings of investee companies, net of tax	—			—			(2.4		)	—			4.6			2.2
Net income	$	—		$	—		$	113.4		$	(4.6	)	$	4.6		$	113.4
Net income	$	—		$	—		$	113.4		$	(4.6	)	$	4.6		$	113.4
Other comprehensive income (loss), net of tax:
Cumulative translation adjustments	—			—			11			11			(11.0		)	11
Net actuarial loss	—			—			(1.4		)	(1.3		)	1.3			(1.4		)
Total other comprehensive income (loss), net of tax	—			—			9.6			9.7			(9.7		)	9.6
Total comprehensive income	$	—		$	—		$	123		$	5.1		$	(5.1	)	$	123
	Year Ended December 31, 2014
(in millions)	Parent Company			Subsidiary Issuer			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated
Cash provided by operating activities	$	(1.3	)	$	(54.8	)	$	330.6		$	(11.7	)	$	—		$	262.8
Investing activities:
Capital expenditures	—			—			(56.8		)	(7.4		)	—			(64.2		)
Acquisitions	—			—			(735.7		)	—			—			(735.7		)
Investments in investee companies	—			—			(3.0		)	—			—			(3.0		)
Proceeds from dispositions	—			—			4.2			0.3			—			4.5
Cash used in investing activities	—			—			(791.3		)	(7.1		)	—			(798.4		)
Financing activities:
Proceeds from IPO	615			—			—			—			—			615
Proceeds from long-term debt borrowings - term loan and senior notes	—			1,598.00			—			—			—			1,598.00
Proceeds from long-term debt borrowings - new senior notes	—			599.3			—			—			—			599.3
Deferred financing costs	—			(42.7		)	—			—			—			(42.7		)
Distribution of debt and IPO proceeds to CBS	(515.0		)	(1,523.8		)	—			—			—			(2,038.8		)
Net cash contribution from (distribution to) CBS	9.5			—			39.8			—			—			49.3
Dividends	(133.2		)	—			—			—			—			(133.2		)
Special dividend	(109.5		)	—			—			—			—			(109.5		)
Intercompany	134.5			(564.5		)	428.4			1.6			—			—
Other	—			—			(0.8		)	—			—			(0.8		)
Cash used in financing activities	1.3			66.3			467.4			1.6			—			536.6
Effect of exchange rate on cash and cash equivalents	—			—			—			(2.3		)	—			(2.3		)
Net increase (decrease) in cash and cash equivalents	—			11.5			6.7			(19.5		)	—			(1.3		)
Cash and cash equivalents at beginning of period	—			—			2.1			27.7			—			29.8
Cash and cash equivalents at end of period	$	—		$	11.5		$	8.8		$	8.2		$	—		$	28.5
	Year Ended December 31, 2013
(in millions)	Parent Company			Subsidiary Issuer			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated
Cash provided by operating activities	$	—		$	—		$	268.2		$	12.9		$	—		$	281.1
Investing activities:
Capital expenditures	—			—			(54.1		)	(6.8		)	—			(60.9		)
Acquisitions	—			—			(11.5		)	—			—			(11.5		)
Proceeds from dispositions	—			—			28.6			0.1			—			28.7
Cash used in investing activities	—			—			(37.0		)	(6.7		)	—			(43.7		)
Financing activities:
Excess tax benefit from stock-based compensation	—			—			5.8			—			—			5.8
Net cash (distribution to)/contribution from CBS	—			—			(244.4		)	11.8			—			(232.6		)
Other	—			—			—			(0.2		)	—			(0.2		)
Cash used in financing activities	—			—			(238.6		)	11.6			—			(227.0		)
Effect of exchange rate on cash and cash equivalents	—			—			—			(0.8		)	—			(0.8		)
Net increase (decrease) in cash and cash equivalents	—			—			(7.4		)	17			—			9.6
Cash and cash equivalents at beginning of period	—			—			9.5			10.7			—			20.2
Cash and cash equivalents at end of period	$	—		$	—		$	2.1		$	27.7		$	—		$	29.8
	Year Ended December 31, 2012
(in millions)	Parent Company			Subsidiary Issuer			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated
Cash provided by operating activities	$	—		$	—		$	277.3		$	28.6		$	—		$	305.9
Investing activities:
Capital expenditures	—			—			(42.5		)	(5.7		)	—			(48.2		)
Acquisitions	—			—			(0.4		)	—			—			(0.4		)
Proceeds from dispositions	—			—			0.4			0.1			—			0.5
Cash used in investing activities	—			—			(42.5		)	(5.6		)	—			(48.1		)
Financing activities:
Excess tax benefit from stock-based compensation	—			—			2.9			—			—			2.9
Net cash distribution to CBS	—			—			(238.2		)	(41.5		)	—			(279.7		)
Other	—			—			—			(0.2		)	—			(0.2		)
Cash used in financing activities	—			—			(235.3		)	(41.7		)	—			(277.0		)
Effect of exchange rate on cash and cash equivalents	—			—			—			1.8			—			1.8
Net increase (decrease) in cash and cash equivalents	—			—			(0.5		)	(16.9		)	—			(17.4		)
Cash and cash equivalents at beginning of period	—			—			10			27.6			—			37.6
Cash and cash equivalents at end of period	$	—		$	—		$	9.5		$	10.7		$	—		$	20.2

Subsequent_Events

Subsequent Events	12 Months Ended
	Dec. 31, 2014
Subsequent Events [Abstract]
Subsequent Events	As of March 6, 2015, we have issued 185,323 shares of our common stock to J&M or Videri, as applicable, in connection with the achievement of milestones under the Videri Agreement.

Quarterly_Financial_Data

Quarterly Financial Data	12 Months Ended
	Dec. 31, 2014
Quarterly Financial Information Disclosure [Abstract]
Quarterly Financial Data	Quarterly Financial Data (Unaudited)
	Our revenues and profits experience seasonality due to seasonal advertising patterns and influences on advertising markets. Typically, our revenues and profits are highest in the fourth quarter, during the holiday shopping season, and lowest in the first quarter, as advertisers cut back on spending following the holiday shopping season.
			2014
	(in millions)		First				Second				Third				Fourth				Total
			Quarter				Quarter				Quarter				Quarter				Year
	Revenues:
	United States		$	255			$	291.1			$	296.3			$	356.4			$	1,198.80
	International		32.9				43.3				40.2				38.6				155
	Total revenues		$	287.9			$	334.4			$	336.5			$	395		(b)	$	1,353.80
	Adjusted OIBDA:
	United States		$	80.3			$	106.4			$	106.3			123.2				416.2
	International		1.1				9.5				6.3				7.4				24.3
	Corporate		(5.8		)		(5.6		)		(5.7		)		(10.0		)		(27.1		)
	Total Adjusted OIBDA		75.6				110.3				106.9				120.6			(b)	413.4
	Restructuring charges - severance only		—				—				(2.7		)		(1.5		)		(4.2		)
	Acquisition costs		—				—				(1.4		)		(9.0		)	(b)	(10.4		)
	Net gain (loss) on dispositions		0.9				—				0.5				1.1				2.5
	Depreciation		(26.1		)		(26.5		)		(26.7		)		(27.9		)		(107.2		)
	Amortization		(21.9		)		(22.6		)		(22.8		)		(27.7		)		(95.0		)
	Stock-based compensation		(1.8		)		(2.9		)		(6.2		)		(5.1		)		(16.0		)
	Total operating income		$	26.7			$	58.3			$	47.6			$	50.5		(b)	$	183.1
	Operating income (loss):
	United States		$	40			$	64.2			$	64.3			75.8				244.3
	International		(5.7		)	(c)	2.6			(c)	(0.7		)	(c)	0.3			(c)	(3.5		)
	Corporate		(7.6		)	(d)	(8.5		)	(d)	(16.0		)	(d)	(25.6		)	(d)	(57.7		)
	Total operating income		$	26.7			$	58.3			$	47.6			$	50.5		(b)	$	183.1
	Net income		$	8.4			$	22.4			$	248.3		(a)	$	27.8		(b)	$	306.9
	(a)	During the third quarter of 2014, we recorded a reversal of $232.3 million, representing substantially all Deferred income tax liabilities, net, as a result of our REIT conversion (see Note 15. Income Taxes).
	(b)	In the fourth quarter of 2014, we issued the New Senior Notes (see Note 8. Long-Term Debt) and completed the Acquisition (see Note 12. Acquisition) and also reversed an additional $3.3 million of Deferred income tax liabilities, net, related to our REIT conversion.
	(c)	We incurred incremental U.S. stand-alone costs of $1.7 million during the first quarter of 2014; $2.1 million during the second quarter of 2014, $2.7 million during the third quarter of 2014 and $2.7 million during the fourth quarter of 2014.
	(d)	We incurred incremental corporate stand-alone costs of $2.1 million during the first quarter of 2014; $3.1 million during the second quarter of 2014, $2.5 million during the third quarter of 2014 and $2.7 million during the fourth quarter of 2014.
			2013
	(in millions)		First				Second				Third				Fourth				Total
			Quarter				Quarter				Quarter				Quarter				Year
	Revenues:
	United States		$	245.2			$	285.9			$	296.5			$	302.5			$	1,130.10
	International		34				46.8				41.7				41.4				163.9
	Total revenues		$	279.2			$	332.7			$	338.2			$	343.9			$	1,294.00
	Adjusted OIBDA:
	United States		$	80.1			$	106.5			$	113.6			$	106.2			$	406.4
	International		0.6				11.5				7.9				9.1				29.1
	Corporate		(5.3		)		(4.9		)		(5.4		)		(5.1		)		(20.7		)
	Total Adjusted OIBDA		75.4				113.1				116.1				110.2				414.8
	Net gain (loss) on dispositions		9.8			(a)	(0.1		)		0.1				17.5			(b)	27.3
	Depreciation		(26.0		)		(25.9		)		(26.4		)		(26.2		)		(104.5		)
	Amortization		(22.9		)		(22.7		)		(22.6		)		(23.1		)		(91.3		)
	Stock-based compensation		(1.6		)		(1.6		)		(2.6		)		(1.7		)		(7.5		)
	Total operating income		$	34.7			$	62.8			$	64.6			$	76.7			$	238.8
	Operating income (loss):
	United States		$	48.2			$	65.2			$	72			$	81.7			$	267.1
	International		(6.6		)		4.1				0.6				1.8				(0.1		)
	Corporate		(6.9		)		(6.5		)		(8.0		)		(6.8		)		(28.2		)
	Total operating income		$	34.7			$	62.8			$	64.6			$	76.7			$	238.8
	Net income		$	19.9			$	36.4			$	37.2			$	50			$	143.5
	(a)	During the first quarter of 2013, we exchanged most of our billboards in Salt Lake City for billboards in New Jersey resulting in a gain of $9.8 million.
	(b)	During the fourth quarter of 2013, we sold 50% of our transit shelter operations in Los Angeles, and we and the buyer each subsequently contributed our respective 50% interests in these operations to a 50/50 joint venture they own together. This transaction resulted in a gain of $17.5 million.

II_Valuation_and_Qualifying_Ac

II - Valuation and Qualifying Accounts	12 Months Ended
	Dec. 31, 2014
Valuation and Qualifying Accounts [Abstract]
II - Valuation and Qualifying Accounts
	Col. A		Col. B		Col. C							Col. D		Col. E
	Description		Balance at		Balance		Charged to		Charged			Deductions		Balance at
			Beginning		Acquired through		Costs and		to Other					End of
			of Period		Acquisitions		Expenses		Accounts(a)					Period
	Allowance for doubtful accounts:
	Year ended December 31, 2014		$	15.7	$	—	$	2.9	$	(0.7	)	$	3.7	$	14.2
	Year ended December 31, 2013		$	19.3	$	—	$	0.4	$	—		$	4	$	15.7
	Year ended December 31, 2012		$	22.4	$	—	$	3.1	$	0.2		$	6.4	$	19.3
	Valuation allowance on deferred tax assets:
	Year ended December 31, 2014		$	10.1	$	—	$	0.5	$	—		$	3.7	$	6.9
	Year ended December 31, 2013		$	8	$	—	$	3	$	—		$	0.9	$	10.1
	Year ended December 31, 2012		$	7.5	$	—	$	0.7	$	—		$	0.2	$	8
	(a)	Reflects change in allowance related to foreign currency translation adjustments.

III_Schedule_of_Real_Estate_an

III - Schedule of Real Estate and Accumulated Depreciation	12 Months Ended
	Dec. 31, 2014
SEC Schedule III, Real Estate and Accumulated Depreciation Disclosure [Abstract]
III - Schedule of Real Estate and Accumulated Depreciation
					Initial Cost						Cost		Gross Carrying Amount at December 31, 2014 (3)
											Capitalized
											Subsequent
											to
	Description (1)		Encumbrances		Land			Structures and Improvements			Acquisition		Land		Structures and Improvements		Total		Accumulated			Construction	Acquisition	Useful
																			Depreciation			Date	Date	Lives
	Structures added prior to January 1, 2014
	United States - 44,235 displays		—		(2)			(2)			(2)		$	83.6	$	1,277.50	$	1,361.10	$	(832.7	)	Various	Various	5 to 20 years
	Canada - 5,955 displays		—		(2)			(2)			(2)		2.5		318		320.5		(249.7		)	Various	Various	5 to 20 years
	Mexico - 4,397 displays		—		(2)			(2)			(2)		2		28.8		30.8		(18.0		)	Various	Various	5 to 20 years
	Argentina - 494 displays		—		(2)			(2)			(2)		—		1.4		1.4		(0.5		)	Various	Various	5 to 20 years
	Brazil - 704 displays		—		(2)			(2)			(2)		—		5.1		5.1		(1.2		)	Various	Various	5 to 20 years
	Uruguay - 149 displays		—		(2)			(2)			(2)		—		1.8		1.8		(1.4		)	Various	Various	5 to 20 years
	Chile - 820 displays		—		(2)			(2)			(2)		—		3.6		3.6		(3.3		)	Various	Various	5 to 20 years
													$	88.1	$	1,636.20	$	1,724.30	$	(1,106.8	)
	Structures added subsequent to January 1, 2014
	United States - 1,875 displays (4)				$	—		$	107.7		$	—	$	—	$	107.7	$	107.7	$	(2.5	)	Various	Various	5 to 20 years
	Canada - 29 displays				—			1			—		—		1		1		—			Various	Various	5 to 20 years
	Mexico - 8 displays				—			0.3			—		—		0.3		0.3		(0.1		)	Various	Various	5 to 20 years
	Argentina - 23 displays				—			0.1			—		—		0.1		0.1		—			Various	Various	5 to 20 years
	Brazil - 60 displays				—			0.2			—		—		0.2		0.2		—			Various	Various	5 to 20 years
	Uruguay - 0 displays				—			—			—		—		—		—		—			Various	Various	5 to 20 years
	Chile - 3 displays				—			0.1			—		—		0.1		0.1		—			Various	Various	5 to 20 years
					$	—		$	109.4		$	—	$	—	$	109.4	$	109.4	$	(2.6	)
	Total
	United States - 46,110 displays												$	83.6	$	1,385.20	$	1,468.80	$	(835.2	)	Various	Various	5 to 20 years
	Canada - 5,984 displays												2.5		319		321.5		(249.7		)	Various	Various	5 to 20 years
	Mexico - 4,405 displays												2		29.1		31.1		(18.1		)	Various	Various	5 to 20 years
	Argentina - 517 displays												—		1.5		1.5		(0.5		)	Various	Various	5 to 20 years
	Brazil - 764 displays												—		5.3		5.3		(1.2		)	Various	Various	5 to 20 years
	Uruguay - 149 displays												—		1.8		1.8		(1.4		)	Various	Various	5 to 20 years
	Chile - 823 displays												—		3.7		3.7		(3.3		)	Various	Various	5 to 20 years
													$	88.1	$	1,745.60	$	1,833.70	$	(1,109.4	)
	______________________
	-1	No single asset exceeded 5% of the total gross carrying amount as of December 31, 2014.
	-2	This information is omitted as it would be impracticable to compile on a site-by-site basis.
	-3	Includes sites under construction.
	-4	Includes the outstanding balance as of December 31, 2014, of structures added in conjunction with the Acquisition. For additional information regarding the Acquisition, see Part II, Item 8, of this Annual Report on Form 10-K, Notes to Consolidated Financial Statements, Note 12. Acquisition.
	The following table summarizes the activity for the Company’s real estate assets, which consist of advertising displays, and the related accumulated depreciation.
		2014			2013			2012
	Gross real estate assets:
	Balance at the beginning of the year	$	1,750.90		$	1,743.70		$	1,714.60
	Additions for construction of / improvements to structures	136.6			51.6			47.1
	Assets sold or written-off	(14.2		)	(14.9		)	(32.3		)
	Foreign exchange	(39.6		)	(29.5		)	14.3
	Balance at the end of the year	$	1,833.70		$	1,750.90		$	1,743.70
	Accumulated depreciation:
	Balance at the beginning of the year	$	1,052.70		$	990		$	911
	Depreciation	99.6			97.5			98.8
	Foreign exchange	(29.9		)	(21.1		)	9.9
	Assets sold or written-off	(13.0		)	(13.7		)	(29.7		)
	Balance at the end of the year	$	1,109.40		$	1,052.70		$	990

Description_of_Business_and_Ba1

Description of Business and Basis of Presentation Accounting (Policies)	12 Months Ended
	Dec. 31, 2014
Accounting Policies [Abstract]
Use of Estimates, Policy [Policy Text Block]	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 from these estimates under different assumptions or conditions.

Summary_of_Significant_Account1

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2014
Accounting Policies [Abstract]
Cash and Cash Equivalents	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. Prior to January 31, 2014, we carried minimal cash on hand as we had participated in CBS’s centralized cash management system. On January 31, 2014, we incurred $1.6 billion in debt under the Senior Credit Facilities and the Senior Notes (see Note 8. Long-Term Debt), and accordingly, our participation in the CBS centralized cash management system ceased.
Receivables	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, as well as recent payment history for specific customers.
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	20 to 40 years
	Advertising structures	5 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 and 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 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 and recognized as a non-cash charge.
Goodwill and Intangible Assets	Goodwill and Intangible Assets—Goodwill is allocated to various reporting units. Each of our segments consists of two reporting units. 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 to 40 years. Goodwill is not amortized but is tested at the reporting-unit level annually for impairment and between annual tests if events occur or circumstances change that would more likely than not reduce the fair value below its carrying amount. If the carrying value of goodwill exceeds its fair value, an impairment loss is recognized as a non-cash charge.
Revenue Recognition	Revenue Recognition—Our revenues are primarily derived from providing space on advertising displays for local, regional and national advertisements. Contracts with customers generally cover periods ranging from four weeks to twelve months and are generally billed every four weeks. Revenues from billboard displays are recognized as rental income on a straight-line basis over the contract term. Transit and other revenues are recognized as earned, which is typically ratably over the contract period. For space provided to advertisers through the use of an advertising agency whose commission is calculated based on a stated percentage of gross billing revenues, revenues are reported net of agency commissions.
	Deferred revenues primarily consist of revenues paid in advance of being earned.
	Revenues derived from a single contract that contains multiple site locations are allocated based on the relative fair value of each delivered item and recognized in accordance with the applicable revenue recognition criteria for the specific unit of accounting.
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 to twelve months.
	The fixed component of lease costs is expensed evenly over the contract term, and contingent rent is expensed as it becomes probable, which is consistent with when the related revenues are recognized.
	Transit franchise agreements generally provide for payment to the municipality or transit operator of the greater of a percentage of the revenues that we generate under the related transit contract and a specified guaranteed minimum payment. The costs which are determined based on a percentage of revenues are expensed as incurred when the related revenues are recognized, and the minimum guarantee 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 is presented within amortization expense in the accompanying Consolidated Statements of Operations.
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. The resulting translation gains and losses are included as a component of invested equity in accumulated other comprehensive loss. Foreign currency transaction gains and losses are included in “Other income (expense), net” in the Consolidated Statements of Operations.
Income Taxes	Income Taxes—Prior to the Separation, we were a member of CBS’s consolidated tax group, and the provision for income taxes, deferred tax assets and liabilities, and income tax payments were calculated on a separate tax return basis, with us as the taxpayer, even though our U.S. operating results were included in the consolidated federal, and certain state and local income tax returns of CBS. We believe that the assumptions and estimates used to determine these tax amounts were reasonable.
	On July 16, 2014, we ceased to be a member of the CBS consolidated tax group and on July 17, 2014, we began operating in a manner that will allow us to qualify as a REIT for U.S. federal income tax purposes for the tax year commencing July 17, 2014, and ending December 31, 2014. We believe we are organized in conformity with the requirements for qualification and taxation as a REIT under Sections 856-860 of the Internal Revenue Code of 1986, as amended (the “Code”), and intend to elect REIT status with the filing of the tax return for the above-referenced short taxable year. Accordingly, 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 our foreign subsidiaries, as taxable REIT subsidiaries (“TRS”). 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 operating expenses and the capitalized cost is depreciated over the expected useful life of the related asset.
Stock-based Compensation	Stock-based Compensation—During 2014, we converted CBS stock options and CBS restricted stock units (“RSUs”) issued by CBS to certain of our employees to stock options and RSUs issued under our equity incentive plan with the same terms and conditions as the CBS awards. 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 was recognized over the vesting period during which an employee was required to provide service in exchange for the award.
New Accounting Pronouncements, Policy [Policy Text Block]	Adoption of New Accounting Standards
	Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists
	During 2014, we adopted the Financial Accounting Standards Board’s (the “FASB’s”) guidance on the presentation of the reserve for uncertain tax positions when a net operating loss carryforward, a similar tax loss, or a tax credit carryforward exists. This guidance requires the reserve for uncertain tax positions to be presented in the financial statements as a reduction to the deferred tax asset for a tax loss or other tax carryforward that would be applied in the settlement of the uncertain tax position. This guidance did not have a material effect on our consolidated financial statements.
	Obligations Resulting from Joint and Several Liability Arrangements
	During 2014, we adopted FASB guidance on the recognition, measurement and disclosure of obligations resulting from joint and several liability arrangements for which the total amount of the obligation is fixed at the reporting date. Under this guidance, we are required to measure our obligations under such arrangements as the sum of the amount we agreed to pay in the arrangement among our co-obligors and any additional amount we expect to pay on behalf of our co-obligors. We are also required to disclose the nature and amount of the obligation. This guidance did not have a material effect on our consolidated financial statements.
Description of New Accounting Pronouncements Not yet Adopted [Text Block]	Recent Pronouncements
	Service Concession Arrangements
	In January 2014, the FASB issued guidance on the accounting for service concession arrangements with public sector entities. This guidance specifies that an operating entity should not account for a service concession arrangement as a lease and the infrastructure used in a service concession arrangement should not be recognized as property, plant and equipment. This guidance applies when the public sector entity controls the services that the operating entity must provide within the infrastructure and also controls any residual interest in the infrastructure at the end of the term of the arrangement. We are currently evaluating the impact of this guidance, which is effective for reporting periods beginning after December 15, 2014, on our consolidated financial statements.
	Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity
	In April 2014, the FASB issued guidance on reporting discontinued operations and disclosures of disposals of components of an entity. The new guidance changes the requirements, including additional disclosures, for reporting discontinued operations which may include a component of an entity or a group of components of an entity, or a business or nonprofit activity. Under the new guidance, a discontinued operation is defined as a disposal of a component or group of components that is disposed of or is classified as held for sale and represents a strategic shift that has (or will have) a major effect on an entity’s operations and financial results. This guidance is effective for interim periods and annual periods beginning after December 31, 2014. Early adoption is permitted, but only for disposals that have not been reported in financial statements previously issued or available for issuance. This guidance is not expected to have a material effect on our consolidated financial statements.
	Revenue from Contracts with Customers
	In May 2014, the FASB issued principles-based guidance addressing revenue recognition issues. The guidance may be applied to all contracts with customers regardless of industry-specific or transaction specific fact patterns. This guidance is to be applied retrospectively and is effective for interim and annual periods beginning after December 15, 2016. Early adoption is not permitted. We are currently evaluating the impact of this guidance on our consolidated financial statements.

Summary_of_Significant_Account2

Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2014
Accounting Policies [Abstract]
Property and Equipment	Depreciation is computed using the straight-line method over the estimated useful lives as follows:
	Buildings and improvements	20 to 40 years
	Advertising structures	5 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)		2014		2013
	Land		$	88.1	$	88.6
	Buildings and improvements		47		45
	Advertising structures		1,745.60		1,662.30
	Furniture, equipment and other		78.1		77.2
	Construction in progress		17.1		18.9
			1,975.90		1,892.00
	Less accumulated depreciation		1,193.00		1,136.60
	Property and equipment, net		$	782.9	$	755.4

Property_and_Equipment_Tables

Property and Equipment (Tables)	12 Months Ended
	Dec. 31, 2014
Property, Plant and Equipment [Abstract]
Property and Equipment	Depreciation is computed using the straight-line method over the estimated useful lives as follows:
	Buildings and improvements	20 to 40 years
	Advertising structures	5 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)		2014		2013
	Land		$	88.1	$	88.6
	Buildings and improvements		47		45
	Advertising structures		1,745.60		1,662.30
	Furniture, equipment and other		78.1		77.2
	Construction in progress		17.1		18.9
			1,975.90		1,892.00
	Less accumulated depreciation		1,193.00		1,136.60
	Property and equipment, net		$	782.9	$	755.4

Goodwill_and_Other_Intangible_1

Goodwill and Other Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2014
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Goodwill	For the years ended December 31, 2014 and 2013, the changes in the book value of goodwill by segment were as follows:
	(in millions)		U.S.			International			Total
	As of December 31, 2012		$	1,758.00		$	119.2		$	1,877.20
	Currency translation adjustments		—			(5.1		)	(5.1		)
	Dispositions		(6.4		)	—			(6.4		)
	As of December 31, 2013		1,751.60			114.1			1,865.70
	Currency translation adjustments		—			(10.5		)	(10.5		)
	Additions(a)		299.2			—			299.2
	Dispositions		(0.2		)	—			(0.2		)
	As of December 31, 2014		$	2,050.60		$	103.6		$	2,154.20
	(a)	In 2014, we completed the Acquisition (see Note 12. Acquisition).
Schedule of Finite-Lived Intangible Assets	identifiable intangible assets consist of the following:
	(in millions)		Gross			Accumulated			Net
						Amortization
	As of December 31, 2014:
	Permits and leasehold agreements		$	1,119.20		$	(677.2	)	$	442
	Franchise agreements		474.7			(321.1		)	153.6
	Other intangible assets		39.9			(2.3		)	37.6
	Total intangible assets		$	1,633.80		$	(1,000.6	)	$	633.2
	As of December 31, 2013:
	Permits and leasehold agreements		$	880.6		$	(659.0	)	$	221.6
	Franchise agreements		462.4			(320.7		)	141.7
	Other intangible assets		2.1			(1.0		)	1.1
	Total intangible assets		$	1,345.10		$	(980.7	)	$	364.4
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense	expect our aggregate annual amortization expense for intangible assets, before considering the impact of future direct lease acquisition costs, for each of the years 2015 through 2019, to be as follows:
	(in millions)		2015			2016			2017			2018		2019
	Amortization expense		$	76.7		$	71.7		$	49.5		$	42.7	$	40.9

Asset_Retirement_Obligation_Ta

Asset Retirement Obligation (Tables)	12 Months Ended
	Dec. 31, 2014
Asset Retirement Obligation Disclosure [Abstract]
Schedule of Change in Asset Retirement Obligation
		For Year Ended December 31,
	(in millions)	2014			2013
	Balance, at beginning of period	$	31.7		$	30.6
	Accretion expense	2.3			2.2
	Additions	4.7			0.4
	Liabilities settled	(1.2		)	(0.9		)
	Foreign currency translation adjustments	(0.9		)	(0.6		)
	Balance, at end of period	$	36.6		$	31.7

LongTerm_Debt_Tables

Long-Term Debt (Tables)	12 Months Ended
	Dec. 31, 2014
Debt Disclosure [Abstract]
Schedule of Long-term Debt Instruments	Long-term debt consists of the following:
			As of
	(in millions, except percentages)		December 31,			December 31,
			2014			2013
	Term loan, due 2021		$	798.3		$	—
	Senior unsecured notes:
	5.250% senior unsecured notes, due 2022		549.3			—
	5.625% senior unsecured notes, due 2024		400			—
	5.875% senior unsecured notes, due 2025		450			—
	Total senior unsecured notes		1,399.30			—
	Other(a)		0.7			—
	Total long-term debt		$	2,198.30		$	—
	Weighted average cost of debt		4.6		%	—		%
	(a)	Reflects the outstanding balance as of December 31, 2014, of long-term debt assumed in conjunction with the Acquisition. (See Note 12. Acquisition.)

Accumulated_Other_Comprehensiv1

Accumulated Other Comprehensive Income (Tables)	12 Months Ended
	Dec. 31, 2014
Accumulated Other Comprehensive Income [Abstract]
Schedule of Accumulated Other Comprehensive Income (Loss)	The following table presents the changes in the components of accumulated other comprehensive income (loss).
	(in millions)		Cumulative			Net			Accumulated
			Translation			Actuarial			Other
			Adjustments			Gain			Comprehensive
						(Loss)			Income (Loss)
	As of December 31, 2011		$	(65.3	)	$	(10.3	)	$	(75.6	)
	Other comprehensive income (loss)		11			(1.4		)	9.6
	As of December 31, 2012		(54.3		)	(11.7		)	(66.0		)
	Other comprehensive income (loss) before reclassifications		(14.9		)	5.2			(9.7		)
	Amortization of actuarial losses reclassified to net income(a)		—			0.6			0.6
	Total other comprehensive income (loss), net of tax		(14.9		)	5.8			(9.1		)
	As of December 31, 2013		(69.2		)	(5.9		)	(75.1		)
	Other comprehensive income (loss) before reclassifications		(10.7		)	(3.3		)	(14.0		)
	Amortization of actuarial losses reclassified to net income(a)		—			0.2			0.2
	Deferred tax rate adjustment		—			(1.2		)	(1.2		)
	Total other comprehensive income (loss), net of tax		(10.7		)	(4.3		)	(15.0		)
	As of December 31, 2014		$	(79.9	)	$	(10.2	)	$	(90.1	)
	(a)	See Note 14. Retirement Benefits for additional details of items reclassified from accumulated other comprehensive income to net income.

Acquisitions_Tables

Acquisitions (Tables)	12 Months Ended
	Dec. 31, 2014
Acquisitions [Abstract]
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed
	(in millions)		Purchase Price
	Base purchase price		$	690
	Working capital and other adjustments		24.2
	Estimated transaction consideration		$	714.2
	Current assets		$	44.4
	Property, plant and equipment		83.2
	Goodwill		299.2
	Intangible assets(a)		316.6
	Other assets		11.1
	Current liabilities		(34.5		)
	Long-term debt(b)		(1.4		)
	Other liabilities		(4.4		)
	Total net assets acquired		$	714.2
Finite-Lived and Indefinite-Lived Intangible Assets Acquired as Part of Business Combination	Intangible assets included with the preliminary purchase price allocation are as follows:
	(in millions)		Estimated Useful Life		Intangible Assets Allocation
	Permits and leasehold agreements		12 - 20 years		$	244
	Franchise agreements		4 - 15 years		34.8
	Advertising relationships		7 years		16
	Other		1 - 5 years		21.8
					$	316.6
	(b)	In conjunction with the Acquisition, we assumed a total of $1.4 million of long term debt, due to three unrelated third parties. The debt has varying maturities through June 1, 2021. In November 2014, we prepaid one of the debt obligations, leaving a remaining balance of $0.7 million as of December 31, 2014, with varying maturities through January 31, 2017.
Business Acquisition, Pro Forma Information	Unaudited Pro Forma Condensed Combined Statements of Operations Information
	The following unaudited pro forma financial information presents our results of operations combined with the Acquired Business as if the Acquisition had occurred as of January 1, 2013. The pro forma information is not necessarily indicative of what the financial position or results of operations actually would have been had the Acquisition been completed as of January 1, 2013. In addition, the unaudited pro forma financial information is not indicative of, nor does it purport to project, our future financial position or operating results. The unaudited pro forma financial information excludes acquisition and integration costs and does not give effect to any estimated and potential cost savings or other operating efficiencies that could result from the Acquisition.
					Year Ended December 31,
	(in millions, except per share amounts)				2014		2013
	Revenues				$	1,505.90	$	1,500.30
	Operating income				193.6		240.1
	Net income				293.6		117.6
	Net income per common share attributable to shareholders of OUTFRONT Media Inc.:
	Basic				$	2.57	$	1.03
	Diluted				$	2.56	$	1.02

StockBased_Compensation_Tables

Stock-Based Compensation (Tables)	12 Months Ended
	Dec. 31, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock-based compensation expense	The following table summarizes our stock-based compensation expense for 2014, 2013 and 2012.
			Year Ended December 31,
	(in millions)		2014				2013				2012
	RSUs and PRSUs		$	13.1			$	6.8			$	5.2
	Stock options		2.9				0.7				0.5
	Stock-based compensation expense, before income taxes		16				7.5				5.7
	Tax benefit		(3.0		)		(3.0		)		(2.3		)
	Stock-based compensation expense, net of tax		$	13			$	4.5			$	3.4
Activity of RSUs and PRSUs issued to our employees	The following table summarizes the activity of the RSUs and PRSUs issued to our employees.
			CBS RSUs							OUTFRONT RSUs
			Activity			Weighted Average Per Share Grant Date Fair Market Value				Activity			Weighted Average Per Share Grant Date Fair Market Value
	Non-vested as of December 31, 2013		472,490			$	32.09
	Employee transfers and grants		11,875			34.66
	Vested		(157,723	)		22.51
	Forfeited		(2,909	)		37.67
	Non-vested before conversion		323,733			36.8
	CBS RSUs converted to OUTFRONT RSUs		(256,172	)		37.77
	Non-vested OUTFRONT RSUs converted from CBS RSUs									561,021			$	17.24
	Non-vested CBS RSUs not converted to OUTFRONT RSUs(a)		67,561			33.16
	Granted:
	RSUs									488,729			26.76
	RSUs issued in connection with special dividend(b)									161,720			26.73
	PRSUs									182,844			29.97
	Dividend equivalents
	Vested:
	RSUs		(67,561	)		33.16				(33,177	)		16.29
	PRSUs									(29,458	)		15.28
	Forfeitures:
	RSUs									(37,788	)		24
	PRSUs									(15,289	)		26.39
	Dividend equivalents
	Non-vested as of December 31, 2014		—			—				1,278,602			21.92
	(a)	Reflects CBS RSUs which vested in April 2014.
	(b)	Represents an adjustment to the outstanding awards for the E&P Purge pursuant to the anti-dilution provisions of the Stock Plan.
Weighted average assumptions for Black-Scholes pricing model	Compensation expense for stock options is determined based on the grant date fair value of the award using the Black-Scholes options-pricing model with the following weighted average assumptions:
			Year Ended December 31,
			2014		2013			2012
	Expected dividend yield		N/A		1.38	%		2	%
	Expected stock price volatility		N/A		35	%		40.2	%
	Risk-free interest rate		N/A		1.2	%		1.01	%
	Expected term of options (years)		N/A		5			5.02
Activity of CBS's stock options issued to our employees	The following table summarizes the activity of CBS’s stock options and OUTFRONT stock options issued to our employees.
			CBS			CBS				OUTFRONT			OUTFRONT Weighted Average Exercise Price
			Stock Options			Weighted Average Exercise Price				Stock Options
	Outstanding as of December 31, 2013		399,581			$	29.3
	Exercised		(123,574	)		22.05
	Forfeited or expired		(39,405	)		30.67
	CBS stock options converted to OUTFRONT stock options		(219,741	)		33.27
	Outstanding OUTFRONT stock options converted from CBS stock options									409,207			$	17.87
	Adjustment in connection with special dividend(a)									63,898			N/A
	Exercised									(3,519	)		12.73
	Forfeited or expired									(18,696	)		19.96
	Outstanding as of December 31, 2014									450,890			15.29
	Exercisable as of December 31, 2014		16,861			27.38				191,445			10.62
	(a)	Represents an adjustment to the outstanding awards for the E&P Purge pursuant to the anti-dilution provisions of the Stock Plan.
Stock option exercises information	The following table summarizes other information relating to stock option exercises during the years ended December 31, 2014, 2013 and 2012.
			Year Ended December 31,
	(in millions)		2014				2013				2012
	Cash paid to CBS by our employees for stock option exercises		$	5			$	4			$	6.5
	Tax benefit of CBS stock option exercises		—				2.5				0.8
	Intrinsic value of CBS stock option exercises		5.3				6.1				1.9
Stock options outstanding and exercisable by price	The following table summarizes information concerning outstanding and exercisable stock options to purchase our common stock under the Stock Plan as of December 31, 2014.
			Outstanding									Exercisable
	Range of		Number			Remaining		Weighted				Number of			Weighted
	Exercise Price		of			Contractual		Average				Options			Average
			Options			Life (Years)		Exercise							Exercise
								Price							Price
	$0 to 4.99		64,556			2.15		$	2.43			64,556			$	2.43
	$5 to 9.99		23,446			3.17		6.25				23,446			6.25
	$10 to 14.99		180,908			3.55		12.64				67,162			12.49
	$20 to 24.99		78,567			6.12		20.07				10,429			20.07
	$25 to 29.99		103,413			6.72		26.39				25,852			26.39
			450,890									191,445

Retirement_Benefits_Tables

Retirement Benefits (Tables)	12 Months Ended
	Dec. 31, 2014
Compensation and Retirement Disclosure [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)		2014				2013			2012
	Benefit obligation, beginning of year		$	46			$	52.7		$	46.8
	Service cost		1.4				1.7			1.5
	Interest cost		2.2				2			2.2
	Actuarial (gain) loss		7.2				(5.1		)	2.7
	Benefits paid		(1.8		)		(1.6		)	(2.2		)
	Cumulative translation adjustments		(4.1		)		(3.7		)	1.7
	Benefit obligation, end of year		$	50.9			$	46		$	52.7
Change in plan assets	The following table sets forth the change in plan assets for our pension plans.
			As of December 31,
	(in millions)		2014				2013
	Fair value of plan assets, beginning of year		$	43.7			$	40.1
	Actual return on plan assets		4.1				4.5
	Employer contributions		1.6				3.8
	Benefits paid		(1.8		)		(1.6		)
	Cumulative translation adjustments		(3.5		)		(3.1		)
	Fair value of plan assets, end of year		$	44.1			$	43.7
Funded status and amounts recognized in consolidated statement of financial position	The funded 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)		2014				2013
	Funded status, end of year		$	(6.8	)		$	(2.3	)
	Amounts recognized on the Consolidated Statement of Financial Position:
	Other noncurrent liabilities		(6.8		)		(2.3		)
	Net amounts recognized		(6.8		)		(2.3		)
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)		2014				2013
	Net actuarial loss		$	(14.5	)		$	(10.2	)
	Deferred tax rate adjustment		(1.2		)		—
	Deferred income taxes		5.5				4.3
	Net amount recognized in accumulated other comprehensive loss		(10.2		)		(5.9		)
Schedule of Accumulated Benefit Obligations in Excess of Fair Value of Plan Assets	The information for the pension plans with an accumulated benefit obligation in excess of plan assets is set forth below.
			As of December 31,
	(in millions)		2014				2013(a)
	Projected benefit obligation		$	50.9			$	2
	Accumulated benefit obligation (a)		46.6				1.9
	Fair value of plan assets (a)		44.1				1.8
	(a)	As of December 31, 2013, the fair value of plan assets exceeded the accumulated benefit obligation for our pension plan in Canada.
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)		2014				2013			2012
	Service cost		$	1.4			$	1.7		$	1.5
	Interest cost		2.2				2			2.2
	Expected return on plan assets		(2.5		)		(2.4		)	(2.1		)
	Amortization of actuarial losses		0.3				1			0.9
	Net periodic pension cost		$	1.4			$	2.3		$	2.5
Schedule of Amounts Recognized in Other Comprehensive Income (Loss)
	(in millions)		Year Ended December 31, 2014
	Actuarial losses		$	(5.7	)
	Amortization of actuarial losses(a)		0.3
	Cumulative translation adjustments		1
	Deferred tax rate adjustment		(1.2		)
			(5.6		)
	Deferred income taxes		1.3
	Recognized in other comprehensive loss, net of tax		$	(4.3	)
	(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	Estimated net actuarial losses related to the defined benefit pension plans of approximately $0.9 million, will be amortized from accumulated other comprehensive loss into net periodic pension costs in 2015.
			As of and for the Year Ended December 31,
			2014			2013
	Weighted average assumptions used to determine benefit obligations:
	Discount rate		4	%		5	%
	Rate of compensation increase		3			3
	Weighted average assumptions used to determine net periodic cost:
	Discount rate		5			4
	Expected long-term return on plan assets		5.6			6
	Rate of compensation increase		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, 2014 and 2013. 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, 2014
	(in millions)		Level 1				Level 2			Level 3			Total
	Cash and cash equivalents(a)		$	1.2			$	1.8		$	—		$	3
	Fixed income securities:
	Government related securities		1.3				3.2			—			4.5
	Corporate bonds(b)		—				13.3			—			13.3
	Equity securities(c):
	U.S. equity		—				7.7			—			7.7
	International equity		—				15.6			—			15.6
	Other		—				—			—			—
	Total assets		$	2.5			$	41.6		$	—		$	44.1
			As of December 31, 2013
	(in millions)		Level 1				Level 2			Level 3			Total
	Cash and cash equivalents(a)		$	—			$	2.6		$	—		$	2.6
	Fixed income securities:
	Government related securities		1.4				6.3			—			7.7
	Corporate bonds(b)		—				9.6			—			9.6
	Equity securities(c):
	U.S. equity		4.9				2.6			—			7.5
	International equity		—				16.2			—			16.2
	Other		—				0.1			—			0.1
	Total assets		$	6.3			$	37.4		$	—		$	43.7
	(a)	Assets categorized as Level 2 reflect investments in money market funds.
	(b)	Securities of diverse industries, substantially all investment grade.
	(c)	Assets categorized as Level 2 reflect investments in common collective funds.
Schedule of Expected Benefit Payments
	(in millions)		2015		2016		2017		2018	2019		2020-2024
	Estimated future benefit payments for pension plans		1.2		1.2		1.3		1.5	1.7		12.9

Income_Taxes_Tables

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Schedule of Income before Income Tax, Domestic and Foreign	The U.S. and foreign components of Income before benefit (provision) for income taxes and equity in earnings of investee companies were as follows:
			Year Ended December 31,
	(in millions)		2014			2013			2012
	United States		$	102.8		$	239.8		$	201.9
	Foreign		(4.8		)	(2.2		)	(1.7		)
	Income before benefit (provision) for income taxes and equity in earnings of investee companies		$	98		$	237.6		$	200.2
Book Income To REIT Taxable Income Reconciliation	The following table reconciles Income before benefit (provision) for income taxes and equity in earnings of investee companies to REIT taxable income for the period July 17, 2014, through December 31, 2014.
						Year Ended December 31,
	(in millions)					2014
	Income before benefit (provision) for income taxes and equity in earnings of investee companies					$	98
	Income before benefit (provision) for income taxes and equity in earnings of investee companies for the period January 1, 2014, through July 16, 2014					(57.9		)
	Income before benefit (provision) for income taxes and equity in earnings of investee companies for the period July 17, 2014, through December 31, 2014					40.1
	Income of TRSs					(1.6		)
	Income from REIT operations					38.5
	Book depreciation in excess of tax depreciation					15
	Book amortization in excess of tax amortization					21.3
	Book/tax differences - stock-based compensation					8.1
	Book/tax differences - capitalized costs					7.4
	Book/tax differences - investments in joint ventures					2.5
	Book/tax differences - other					4.2
	REIT taxable income for the period July 17, 2014, through December 31, 2014 (estimated)					$	97
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)		2014			2013			2012
	Current:
	Federal		$	29.9		$	85.1		$	71.8
	State and local		9.8			21.8			18.9
	Foreign		3.8			5.2			4.9
			43.5			112.1			95.6
	Deferred tax (benefit) liability:
	Federal		(198.0		)	(3.6		)	(5.1		)
	State and local		(50.3		)	(10.0		)	1.7
	Foreign		(1.2		)	(1.9		)	(3.2		)
			(249.5		)	(15.5		)	(6.6		)
	(Benefit) provision for income taxes		$	(206.0	)	$	96.6		$	89
Schedule of Effective Income Tax Rate Reconciliation	The difference between income taxes expected at the U.S. federal statutory income tax rate of 35% and the Benefit (provision) for income taxes is summarized as follows:
			Year Ended December 31,
	(in millions)		2014			2013			2012
	Taxes on income at U.S. statutory rate		$	34.3		$	83.2		$	70.1
	REIT dividends paid deduction		(13.5		)	—			—
	State and local taxes, net of federal tax benefit		4.8			7.6			13.4
	Effect of foreign operations		2.9			4			2.2
	Deferred tax adjustment due to REIT conversion		(235.6		)	—			—
	Other, net(a)		1.1			1.8			3.3
	(Benefit) provision for income taxes		$	(206.0	)	$	96.6		$	89
	(a)	For 2012, other primarily reflects a charge related to our domestic production deduction.
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)		2014			2013
	Deferred income tax assets:
	Provision for expenses and losses		$	2.8		$	31.3
	Postretirement and other employee benefits		4.6			9.9
	Tax credit and loss carryforwards		10.9			14.6
	Other		—			0.1
	Total deferred income tax assets		18.3			55.9
	Valuation allowance		(6.9		)	(10.1		)
	Deferred income tax assets, net		11.4			45.8
	Deferred income tax liabilities:
	Property, equipment and intangible assets		(18.8		)	(309.3		)
	Other		—			(0.5		)
	Total deferred income tax liabilities		(18.8		)	(309.8		)
	Deferred income tax liabilities, net		$	(7.4	)	$	(264.0	)
Schedule of Unrecognized Tax Benefits Roll Forward	The following table sets forth the change in the reserve for uncertain tax positions, excluding related accrued interest and penalties.
	(in millions)
	As of January 1, 2012		$	5.4
	Additions for current year tax positions		3.8
	Reductions for prior year tax positions		(4.3		)
	As of December 31, 2012		4.9
	Additions for current year tax positions		0.2
	Reductions for prior year tax positions		(1.1		)
	As of December 31, 2013		4
	Additions for current year tax positions		0.1
	Reductions for prior year tax positions		(2.9		)
	As of December 31, 2014		$	1.2

Earnings_Per_Share_EPS_Tables

Earnings Per Share ("EPS") (Tables)	12 Months Ended
	Dec. 31, 2014
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted
			Year Ended December 31,
	(in millions)		2014		2013		2012
	Net income		$	306.9	$	143.5	$	113.4
	Weighted average shares for basic EPS		114.3		114.3		114.3
	Dilutive potential shares from grants of RSUs, PRSUs and stock options(a)		0.5		0.5		0.5
	Weighted average shares for diluted EPS		114.8		114.8		114.8
	(a)	The potential impact of an aggregate 0.2 million granted RSUs, PRSUs and stock options for 2014 was antidilutive.

Commitment_and_Contingencies_T

Commitment and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2014
Commitments and Contingencies Disclosure [Abstract]
Contractual Obligation, Fiscal Year Maturity Schedule	As of December 31, 2014, minimum rental payments under non-cancellable operating leases with terms in excess of one year and guaranteed minimum franchise payments are as follows:
	(in millions)	Operating		Guaranteed
		Leases		Minimum
				Franchise
				Payments
	2015	$	122.1	$	173.5
	2016	121.7		56
	2017	101.6		43.2
	2018	86.8		40.9
	2019	73.8		27.1
	2020 and thereafter	432.5		44.6
	Total minimum payments	$	938.5	$	385.3

Segment_Information_Tables

Segment Information (Tables)	12 Months Ended
	Dec. 31, 2014
Segment Reporting [Abstract]
Reconciliation of Revenue from Segments to Consolidated	The following tables set forth our financial performance by segment. We manage our operations through two segments—United States and International.
			Year Ended December 31,
	(in millions)		2014			2013			2012
	Revenues:
	United States		$	1,198.80		$	1,130.10		$	1,098.60
	International		155			163.9			186
	Total revenues		$	1,353.80		$	1,294.00		$	1,284.60
Adjusted OIBDA by segment and Reconciliation to Consolidated Net Income
			Year Ended December 31,
	(in millions)		2014			2013			2012
	Net income		$	306.9		$	143.5		$	113.4
	(Benefit) provision for income taxes		(206.0		)	96.6			89
	Equity in earnings of investee companies, net of tax		(2.9		)	(2.5		)	(2.2		)
	Interest expense (income), net		84.8			—			—
	Other (income) expense, net		0.3			1.2			1
	Operating income		183.1			238.8			201.2
	Restructuring charges(a)		9.8			—			2.5
	Acquisition costs(a)		10.4			—			—
	Net gain on dispositions		(2.5		)	(27.3		)	2.2
	Depreciation and amortization		202.2			195.8			196.8
	Stock-based compensation(a)		10.4			7.5			5.7
	Total Adjusted OIBDA		$	413.4		$	414.8		$	408.4
	Adjusted OIBDA:
	United States		$	416.2		$	406.4		$	385.4
	International		24.3			29.1			30.5
	Corporate		(27.1		)	(20.7		)	(7.5		)
	Total Adjusted OIBDA		$	413.4		$	414.8		$	408.4
	(a)	In 2014, restructuring charges (including stock-based compensation of $5.6 million), costs related to the Acquisition and stock-based compensation are classified as Corporate expense.
Tabular Disclosure by Reportable Segments
			Year Ended December 31,
	(in millions)		2014			2013			2012
	Operating income (loss):
	U.S.		$	244.3		$	267.1		$	216.4
	International		(3.5		)	(0.1		)	(2.0		)
	Corporate		(57.7		)	(28.2		)	(13.2		)
	Total operating income		$	183.1		$	238.8		$	201.2
	Net (gain) loss on dispositions:
	U.S.		$	(2.5	)	$	(27.5	)	$	1.6
	International		—			0.2			0.6
	Total gain on dispositions		$	(2.5	)	$	(27.3	)	$	2.2
	Depreciation and amortization:
	U.S.		$	174.4		$	166.8		$	165.6
	International		27.8			29			31.2
	Total depreciation and amortization		$	202.2		$	195.8		$	196.8
	Capital expenditures:
	U.S.		$	56.8		$	54.1		$	42.5
	International		7.4			6.8			5.7
	Total capital expenditures		$	64.2		$	60.9		$	48.2
Reconciliation of Assets from Segment to Consolidated
			As of December 31,
	(in millions)		2014			2013			2012
	Assets:
	U.S.		$	3,704.20		$	3,027.60		$	3,114.40
	International		270.4			327.9			350.5
	Corporate		49			—			—
	Total assets		$	4,023.60		$	3,355.50		$	3,464.90
Schedule of Revenue from External Customers by Geographic Area
			Year Ended December 31,
	(in millions)		2014			2013			2012
	Revenues(a):
	United States		$	1,198.80		$	1,130.10		$	1,098.60
	Canada		82.5			84.7			99.2
	Latin America		72.5			79.2			86.8
	Total revenues		$	1,353.80		$	1,294.00		$	1,284.60
	(a)	Revenues classifications are based on customers’ locations.
Long-lived Assets by Geographic Areas
			As of December 31,
	(in millions)		2014			2013			2012
	Long-lived assets(a):
	United States		$	3,423.60		$	2,768.50		2,782.70
	Canada		112			138.1			193.7
	Latin America		94.5			107.6			159.3
	Total long-lived assets		$	3,630.10		$	3,014.20		$	3,135.70
	(a)	Reflects total assets less current assets, investments and non-current deferred tax assets.

Condensed_Consolidating_Financ1

Condensed Consolidating Financial Information (Tables)	12 Months Ended
	Dec. 31, 2014
Condensed Consolidating Financial Information [Abstract]
Condensed Balance Sheet
		As of December 31, 2014
	(in millions)	Parent Company			Subsidiary Issuer			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated
	Current assets:
	Cash and cash equivalents	$	—		$	11.5		$	8.8		$	8.2		$	—		$	28.5
	Receivables, less allowances	—			—			186.5			31			—			217.5
	Other current assets	—			5.3			83.5			20.5			—			109.3
	Total current assets	—			16.8			278.8			59.7			—			355.3
	Property and equipment, net	—			—			683.3			99.6			—			782.9
	Goodwill	—			—			2,050.60			103.6			—			2,154.20
	Intangible assets	—			—			633			0.2			—			633.2
	Investment in subsidiaries	1,445.50			3,613.00			208.1			—			(5,266.6		)	—
	Other assets	—			31.2			59.5			7.3			—			98
	Intercompany	—			—			75.1			62.9			(138.0		)	—
	Total assets	$	1,445.50		$	3,661.00		$	3,988.40		$	333.3		$	(5,404.6	)	$	4,023.60
	Total current liabilities	$	—		$	17.9		$	219.1		$	18.2		$	—		$	255.2
	Long-term debt	—			2,197.60			0.7			—			—			2,198.30
	Deferred income tax liabilities, net	—			—			—			17.2			—			17.2
	Asset retirement obligation	—			—			28.3			8.3			—			36.6
	Deficit in excess of investment of subsidiaries	—			—			2,167.50			—			(2,167.5		)	—
	Other liabilities	—			—			64.4			6.4			—			70.8
	Intercompany	—			—			62.9			75.1			(138.0		)	—
	Total liabilities	—			2,215.50			2,542.90			125.2			(2,305.5		)	2,578.10
	Total stockholders’ equity	1,445.50			1,445.50			1,445.50			208.1			(3,099.1		)	1,445.50
	Total liabilities and stockholders’ equity	$	1,445.50		$	3,661.00		$	3,988.40		$	333.3		$	(5,404.6	)	$	4,023.60
		As of December 31, 2013
	(in millions)	Parent Company			Subsidiary Issuer			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated
	Current assets:
	Cash and cash equivalents	$	—		$	—		$	2.1		$	27.7		$	—		$	29.8
	Receivables, less allowances	—			—			146			32.8			—			178.8
	Other current assets	—			—			89.1			19.5			—			108.6
	Total current assets	—			—			237.2			80			—			317.2
	Property and equipment, net	—			—			628.1			127.3			—			755.4
	Goodwill	—			—			1,751.60			114.1			—			1,865.70
	Intangible assets	—			—			364.2			0.2			—			364.4
	Investment in subsidiaries	—			—			232.9			—			(232.9		)	—
	Other assets	—			—			46.5			6.3			—			52.8
	Intercompany	—			—			66			55.7			(121.7		)	—
	Total assets	$	—		$	—		$	3,326.50		$	383.6		$	(354.6	)	$	3,355.50
	Total current liabilities	$	—		$	—		$	168.3		$	43.9		$	—		$	212.2
	Deferred income tax liabilities, net	—			—			259.4			29.1			—			288.5
	Asset retirement obligation	—			—			23.1			8.6			—			31.7
	Other liabilities	—			—			65.6			3.1			—			68.7
	Intercompany	—			—			55.7			66			(121.7		)	—
	Total liabilities	—			—			572.1			150.7			(121.7		)	601.1
	Total invested equity	—			—			2,754.40			232.9			(232.9		)	2,754.40
	Total liabilities and invested equity	$	—		$	—		$	3,326.50		$	383.6		$	(354.6	)	$	3,355.50
Condensed Income Statement
		Year Ended December 31, 2014
	(in millions)	Parent Company			Subsidiary Issuer			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated
	Revenues:
	Billboard	$	—		$	—		851			121.1			$	—		$	972.1
	Transit and other	—			—			347.8			33.9			—			381.7
	Total revenues	—			—			1,198.80			155			—			1,353.80
	Expenses:
	Operating	—			—			626.1			100.4			—			726.5
	Selling, general and administrative	1.3			—			192.7			30.3			—			224.3
	Restructuring charges	—			—			9.8			—			—			9.8
	Acquisition costs	—			—			10.4			—			—			10.4
	Net (gain) loss on dispositions	—			—			(2.5		)	—			—			(2.5		)
	Depreciation	—			—			84.5			22.7			—			107.2
	Amortization	—			—			89.9			5.1			—			95
	Total expenses	1.3			—			1,010.90			158.5			—			1,170.70
	Operating income (loss)	(1.3		)	—			187.9			(3.5		)	—			183.1
	Interest income (expense), net	—			(84.8		)	(0.2		)	0.2			—			(84.8		)
	Other income (expenses)	—			—			—			(0.3		)	—			(0.3		)
	Income before income taxes and equity earnings of investee	(1.3		)	(84.8		)	187.7			(3.6		)	—			98
	Provision for income taxes	—			—			209.7			(3.7		)	—			206
	Equity in earnings of investee companies, net of tax	308.2			393			(89.2		)	0.7			(609.8		)	2.9
	Net income	$	306.9		$	308.2		$	308.2		$	(6.6	)	$	(609.8	)	$	306.9
	Net income	$	306.9		$	308.2		$	308.2		$	(6.6	)	$	(609.8	)	$	306.9
	Other comprehensive income (loss), net of tax:
	Cumulative translation adjustments	(10.7		)	(10.7		)	(10.7		)	(10.7		)	32.1			(10.7		)
	Net actuarial loss	(3.1		)	(3.1		)	(3.1		)	(2.9		)	9.1			(3.1		)
	Deferred tax rate adjustment	(1.2		)	(1.2		)	(1.2		)	(1.2		)	3.6			(1.2		)
	Total other comprehensive income (loss), net of tax	(15.0		)	(15.0		)	(15.0		)	(14.8		)	44.8			(15.0		)
	Total comprehensive income	$	291.9		$	293.2		$	293.2		$	(21.4	)	$	(565.0	)	$	291.9
		Year Ended December 31, 2013
	(in millions)	Parent Company			Subsidiary Issuer			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated
	Revenues:
	Billboard	$	—		$	—		$	796.6		$	129.1		$	—		$	925.7
	Transit and other	—			—			333.5			34.8			—			368.3
	Total revenues	—			—			1,130.10			163.9			—			1,294.00
	Expenses:
	Operating	—			—			584.2			102.7			—			686.9
	Selling, general and administrative	—			—			167.7			32.1			—			199.8
	Net (gain) loss on dispositions	—			—			(27.5		)	0.2			—			(27.3		)
	Depreciation	—			—			80.7			23.8			—			104.5
	Amortization	—			—			86.1			5.2			—			91.3
	Total expenses	—			—			891.2			164			—			1,055.20
	Operating income	—			—			238.9			(0.1		)	—			238.8
	Other income (expenses)	—			—			(0.2		)	(1.0		)	—			(1.2		)
	Income before income taxes and equity earnings of investee	—			—			238.7			(1.1		)	—			237.6
	Provision for income taxes	—			—			(93.3		)	(3.3		)	—			(96.6		)
	Equity in earnings of investee companies, net of tax	—			—			(1.9		)	—			4.4			2.5
	Net income	$	—		$	—		$	143.5		$	(4.4	)	$	4.4		$	143.5
	Net income	$	—		$	—		$	143.5		$	(4.4	)	$	4.4		$	143.5
	Other comprehensive income (loss), net of tax:
	Cumulative translation adjustments	—			—			(14.9		)	(14.9		)	14.9			(14.9		)
	Net actuarial loss	—			—			5.8			5.6			(5.6		)	5.8
	Total other comprehensive income (loss), net of tax	—			—			(9.1		)	(9.3		)	9.3			(9.1		)
	Total comprehensive income	$	—		$	—		$	134.4		$	(13.7	)	$	13.7		$	134.4
		Year Ended December 31, 2012
	(in millions)	Parent Company			Subsidiary Issuer			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated
	Revenues:
	Billboard	$	—		$	—		$	770.7		$	142.9		$	—		$	913.6
	Transit and other	—			—			327.9			43.1			—			371
	Total revenues	—			—			1,098.60			186			—			1,284.60
	Expenses:
	Operating	—			—			577.9			122.2			—			700.1
	Selling, general and administrative	—			—			148.5			33.3			—			181.8
Restructuring charges	—			—			1.8			0.7			—			2.5
Net (gain) loss on dispositions	—			—			1.6			0.6			—			2.2
Depreciation	—			—			80.4			25.5			—			105.9
Amortization	—			—			85.2			5.7			—			90.9
Total expenses	—			—			895.4			188			—			1,083.40
Operating income (loss)	—			—			203.2			(2.0		)	—			201.2
Other income (expenses)	—			—			(0.1		)	(0.9		)	—			(1.0		)
Income before income taxes and equity earnings of investee	—			—			203.1			(2.9		)	—			200.2
Provision for income taxes	—			—			(87.3		)	(1.7		)	—			(89.0		)
Equity in earnings of investee companies, net of tax	—			—			(2.4		)	—			4.6			2.2
Net income	$	—		$	—		$	113.4		$	(4.6	)	$	4.6		$	113.4
Net income	$	—		$	—		$	113.4		$	(4.6	)	$	4.6		$	113.4
Other comprehensive income (loss), net of tax:
Cumulative translation adjustments	—			—			11			11			(11.0		)	11
Net actuarial loss	—			—			(1.4		)	(1.3		)	1.3			(1.4		)
Total other comprehensive income (loss), net of tax	—			—			9.6			9.7			(9.7		)	9.6
Total comprehensive income	$	—		$	—		$	123		$	5.1		$	(5.1	)	$	123
Condensed Cash Flow Statement
		Year Ended December 31, 2014
	(in millions)	Parent Company			Subsidiary Issuer			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated
	Cash provided by operating activities	$	(1.3	)	$	(54.8	)	$	330.6		$	(11.7	)	$	—		$	262.8
	Investing activities:
	Capital expenditures	—			—			(56.8		)	(7.4		)	—			(64.2		)
	Acquisitions	—			—			(735.7		)	—			—			(735.7		)
	Investments in investee companies	—			—			(3.0		)	—			—			(3.0		)
	Proceeds from dispositions	—			—			4.2			0.3			—			4.5
	Cash used in investing activities	—			—			(791.3		)	(7.1		)	—			(798.4		)
	Financing activities:
	Proceeds from IPO	615			—			—			—			—			615
	Proceeds from long-term debt borrowings - term loan and senior notes	—			1,598.00			—			—			—			1,598.00
	Proceeds from long-term debt borrowings - new senior notes	—			599.3			—			—			—			599.3
	Deferred financing costs	—			(42.7		)	—			—			—			(42.7		)
	Distribution of debt and IPO proceeds to CBS	(515.0		)	(1,523.8		)	—			—			—			(2,038.8		)
	Net cash contribution from (distribution to) CBS	9.5			—			39.8			—			—			49.3
	Dividends	(133.2		)	—			—			—			—			(133.2		)
	Special dividend	(109.5		)	—			—			—			—			(109.5		)
	Intercompany	134.5			(564.5		)	428.4			1.6			—			—
	Other	—			—			(0.8		)	—			—			(0.8		)
	Cash used in financing activities	1.3			66.3			467.4			1.6			—			536.6
	Effect of exchange rate on cash and cash equivalents	—			—			—			(2.3		)	—			(2.3		)
	Net increase (decrease) in cash and cash equivalents	—			11.5			6.7			(19.5		)	—			(1.3		)
	Cash and cash equivalents at beginning of period	—			—			2.1			27.7			—			29.8
	Cash and cash equivalents at end of period	$	—		$	11.5		$	8.8		$	8.2		$	—		$	28.5
		Year Ended December 31, 2013
	(in millions)	Parent Company			Subsidiary Issuer			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated
	Cash provided by operating activities	$	—		$	—		$	268.2		$	12.9		$	—		$	281.1
	Investing activities:
	Capital expenditures	—			—			(54.1		)	(6.8		)	—			(60.9		)
	Acquisitions	—			—			(11.5		)	—			—			(11.5		)
	Proceeds from dispositions	—			—			28.6			0.1			—			28.7
	Cash used in investing activities	—			—			(37.0		)	(6.7		)	—			(43.7		)
	Financing activities:
	Excess tax benefit from stock-based compensation	—			—			5.8			—			—			5.8
	Net cash (distribution to)/contribution from CBS	—			—			(244.4		)	11.8			—			(232.6		)
	Other	—			—			—			(0.2		)	—			(0.2		)
	Cash used in financing activities	—			—			(238.6		)	11.6			—			(227.0		)
	Effect of exchange rate on cash and cash equivalents	—			—			—			(0.8		)	—			(0.8		)
	Net increase (decrease) in cash and cash equivalents	—			—			(7.4		)	17			—			9.6
	Cash and cash equivalents at beginning of period	—			—			9.5			10.7			—			20.2
	Cash and cash equivalents at end of period	$	—		$	—		$	2.1		$	27.7		$	—		$	29.8
		Year Ended December 31, 2012
	(in millions)	Parent Company			Subsidiary Issuer			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated
	Cash provided by operating activities	$	—		$	—		$	277.3		$	28.6		$	—		$	305.9
	Investing activities:
	Capital expenditures	—			—			(42.5		)	(5.7		)	—			(48.2		)
	Acquisitions	—			—			(0.4		)	—			—			(0.4		)
	Proceeds from dispositions	—			—			0.4			0.1			—			0.5
	Cash used in investing activities	—			—			(42.5		)	(5.6		)	—			(48.1		)
	Financing activities:
	Excess tax benefit from stock-based compensation	—			—			2.9			—			—			2.9
	Net cash distribution to CBS	—			—			(238.2		)	(41.5		)	—			(279.7		)
	Other	—			—			—			(0.2		)	—			(0.2		)
	Cash used in financing activities	—			—			(235.3		)	(41.7		)	—			(277.0		)
	Effect of exchange rate on cash and cash equivalents	—			—			—			1.8			—			1.8
	Net increase (decrease) in cash and cash equivalents	—			—			(0.5		)	(16.9		)	—			(17.4		)
	Cash and cash equivalents at beginning of period	—			—			10			27.6			—			37.6
	Cash and cash equivalents at end of period	$	—		$	—		$	9.5		$	10.7		$	—		$	20.2

Quarterly_Financial_Data_Table

Quarterly Financial Data (Tables)	12 Months Ended
	Dec. 31, 2014
Quarterly Financial Information Disclosure [Abstract]
Schedule of Quarterly Financial Information
			2013
	(in millions)		First				Second			Third			Fourth				Total
			Quarter				Quarter			Quarter			Quarter				Year
	Revenues:
	United States		$	245.2			$	285.9		$	296.5		$	302.5			$	1,130.10
	International		34				46.8			41.7			41.4				163.9
	Total revenues		$	279.2			$	332.7		$	338.2		$	343.9			$	1,294.00
	Adjusted OIBDA:
	United States		$	80.1			$	106.5		$	113.6		$	106.2			$	406.4
	International		0.6				11.5			7.9			9.1				29.1
	Corporate		(5.3		)		(4.9		)	(5.4		)	(5.1		)		(20.7		)
	Total Adjusted OIBDA		75.4				113.1			116.1			110.2				414.8
	Net gain (loss) on dispositions		9.8			(a)	(0.1		)	0.1			17.5			(b)	27.3
	Depreciation		(26.0		)		(25.9		)	(26.4		)	(26.2		)		(104.5		)
	Amortization		(22.9		)		(22.7		)	(22.6		)	(23.1		)		(91.3		)
	Stock-based compensation		(1.6		)		(1.6		)	(2.6		)	(1.7		)		(7.5		)
	Total operating income		$	34.7			$	62.8		$	64.6		$	76.7			$	238.8
	Operating income (loss):
	United States		$	48.2			$	65.2		$	72		$	81.7			$	267.1
	International		(6.6		)		4.1			0.6			1.8				(0.1		)
	Corporate		(6.9		)		(6.5		)	(8.0		)	(6.8		)		(28.2		)
	Total operating income		$	34.7			$	62.8		$	64.6		$	76.7			$	238.8
	Net income		$	19.9			$	36.4		$	37.2		$	50			$	143.5
	(a)	During the first quarter of 2013, we exchanged most of our billboards in Salt Lake City for billboards in New Jersey resulting in a gain of $9.8 million.
	(b)	During the fourth quarter of 2013, we sold 50% of our transit shelter operations in Los Angeles, and we and the buyer each subsequently contributed our respective 50% interests in these operations to a 50/50 joint venture they own together. This transaction resulted in a gain of $17.5 million.

II_Valuation_and_Qualifying_Ac1

II - Valuation and Qualifying Accounts (Tables)	12 Months Ended
	Dec. 31, 2014
Valuation and Qualifying Accounts [Abstract]
Schedule of Valuation and Qualifying Accounts Disclosure [Text Block]
	Col. A		Col. B		Col. C							Col. D		Col. E
	Description		Balance at		Balance		Charged to		Charged			Deductions		Balance at
			Beginning		Acquired through		Costs and		to Other					End of
			of Period		Acquisitions		Expenses		Accounts(a)					Period
	Allowance for doubtful accounts:
	Year ended December 31, 2014		$	15.7	$	—	$	2.9	$	(0.7	)	$	3.7	$	14.2
	Year ended December 31, 2013		$	19.3	$	—	$	0.4	$	—		$	4	$	15.7
	Year ended December 31, 2012		$	22.4	$	—	$	3.1	$	0.2		$	6.4	$	19.3
	Valuation allowance on deferred tax assets:
	Year ended December 31, 2014		$	10.1	$	—	$	0.5	$	—		$	3.7	$	6.9
	Year ended December 31, 2013		$	8	$	—	$	3	$	—		$	0.9	$	10.1
	Year ended December 31, 2012		$	7.5	$	—	$	0.7	$	—		$	0.2	$	8
	(a)	Reflects change in allowance related to foreign currency translation adjustments.

III_Schedule_of_Real_Estate_an1

III - Schedule of Real Estate and Accumulated Depreciation Schedule of Real Estate and Accumulated Depreciation (Tables)	12 Months Ended
	Dec. 31, 2014
SEC Schedule III, Real Estate and Accumulated Depreciation Disclosure [Abstract]
SEC Schedule III, Real Estate and Accumulated Depreciation Disclosure [Text Block]
					Initial Cost						Cost		Gross Carrying Amount at December 31, 2014 (3)
											Capitalized
											Subsequent
											to
	Description (1)		Encumbrances		Land			Structures and Improvements			Acquisition		Land		Structures and Improvements		Total		Accumulated			Construction	Acquisition	Useful
																			Depreciation			Date	Date	Lives
	Structures added prior to January 1, 2014
	United States - 44,235 displays		—		(2)			(2)			(2)		$	83.6	$	1,277.50	$	1,361.10	$	(832.7	)	Various	Various	5 to 20 years
	Canada - 5,955 displays		—		(2)			(2)			(2)		2.5		318		320.5		(249.7		)	Various	Various	5 to 20 years
	Mexico - 4,397 displays		—		(2)			(2)			(2)		2		28.8		30.8		(18.0		)	Various	Various	5 to 20 years
	Argentina - 494 displays		—		(2)			(2)			(2)		—		1.4		1.4		(0.5		)	Various	Various	5 to 20 years
	Brazil - 704 displays		—		(2)			(2)			(2)		—		5.1		5.1		(1.2		)	Various	Various	5 to 20 years
	Uruguay - 149 displays		—		(2)			(2)			(2)		—		1.8		1.8		(1.4		)	Various	Various	5 to 20 years
	Chile - 820 displays		—		(2)			(2)			(2)		—		3.6		3.6		(3.3		)	Various	Various	5 to 20 years
													$	88.1	$	1,636.20	$	1,724.30	$	(1,106.8	)
	Structures added subsequent to January 1, 2014
	United States - 1,875 displays (4)				$	—		$	107.7		$	—	$	—	$	107.7	$	107.7	$	(2.5	)	Various	Various	5 to 20 years
	Canada - 29 displays				—			1			—		—		1		1		—			Various	Various	5 to 20 years
	Mexico - 8 displays				—			0.3			—		—		0.3		0.3		(0.1		)	Various	Various	5 to 20 years
	Argentina - 23 displays				—			0.1			—		—		0.1		0.1		—			Various	Various	5 to 20 years
	Brazil - 60 displays				—			0.2			—		—		0.2		0.2		—			Various	Various	5 to 20 years
	Uruguay - 0 displays				—			—			—		—		—		—		—			Various	Various	5 to 20 years
	Chile - 3 displays				—			0.1			—		—		0.1		0.1		—			Various	Various	5 to 20 years
					$	—		$	109.4		$	—	$	—	$	109.4	$	109.4	$	(2.6	)
	Total
	United States - 46,110 displays												$	83.6	$	1,385.20	$	1,468.80	$	(835.2	)	Various	Various	5 to 20 years
	Canada - 5,984 displays												2.5		319		321.5		(249.7		)	Various	Various	5 to 20 years
	Mexico - 4,405 displays												2		29.1		31.1		(18.1		)	Various	Various	5 to 20 years
	Argentina - 517 displays												—		1.5		1.5		(0.5		)	Various	Various	5 to 20 years
	Brazil - 764 displays												—		5.3		5.3		(1.2		)	Various	Various	5 to 20 years
	Uruguay - 149 displays												—		1.8		1.8		(1.4		)	Various	Various	5 to 20 years
	Chile - 823 displays												—		3.7		3.7		(3.3		)	Various	Various	5 to 20 years
													$	88.1	$	1,745.60	$	1,833.70	$	(1,109.4	)
	______________________
	-1	No single asset exceeded 5% of the total gross carrying amount as of December 31, 2014.
	-2	This information is omitted as it would be impracticable to compile on a site-by-site basis.
	-3	Includes sites under construction.
	-4	Includes the outstanding balance as of December 31, 2014, of structures added in conjunction with the Acquisition. For additional information regarding the Acquisition, see Part II, Item 8, of this Annual Report on Form 10-K, Notes to Consolidated Financial Statements, Note 12. Acquisition.
	The following table summarizes the activity for the Company’s real estate assets, which consist of advertising displays, and the related accumulated depreciation.
		2014			2013			2012
	Gross real estate assets:
	Balance at the beginning of the year	$	1,750.90		$	1,743.70		$	1,714.60
	Additions for construction of / improvements to structures	136.6			51.6			47.1
	Assets sold or written-off	(14.2		)	(14.9		)	(32.3		)
	Foreign exchange	(39.6		)	(29.5		)	14.3
	Balance at the end of the year	$	1,833.70		$	1,750.90		$	1,743.70
	Accumulated depreciation:
	Balance at the beginning of the year	$	1,052.70		$	990		$	911
	Depreciation	99.6			97.5			98.8
	Foreign exchange	(29.9		)	(21.1		)	9.9
	Assets sold or written-off	(13.0		)	(13.7		)	(29.7		)
	Balance at the end of the year	$	1,109.40		$	1,052.70		$	990

Description_of_Business_and_Ba2

Description of Business and Basis of Presentation - Narrative (Details) (USD $)

0 Months Ended

12 Months Ended

2 Months Ended

0 Months Ended

In Millions, except Share data, unless otherwise specified

Dec. 31, 2014

Dec. 18, 2014

Dec. 01, 2014

Nov. 20, 2014

Oct. 29, 2014

Jul. 16, 2014

Jan. 15, 2014

Dec. 31, 2014

Dec. 31, 2013

Dec. 31, 2012

Mar. 06, 2015

Mar. 31, 2015

Mar. 11, 2015

Feb. 26, 2015

Feb. 26, 2015

Apr. 02, 2014

Oct. 01, 2014

Dec. 29, 2014

markets

segment

Description of Business and Basis of Presentation [Line Items]

Number of Largest Markets in Which the Entity Operates, Domestic

25

Number of Markets in Which the Entity Operates

180

Number of Operating Segments

2

Stock Issued During Period, Shares, New Issues

74,129

100

Shares Exchanged by Parent In Tender Offer

97,000,000

Significant Acquisitions and Disposals, Acquisition Costs or Sale Proceeds

$714.20

$714.20

$690

Distributed Earnings

547.7

Payment of Special Dividend

109.5

109.5

0

0

Common Stock Dividends, Shares

16,536,001

Volume Weighted Average Price Of Our Common Stock

$26.50

Proceeds from Initial Public Offering Held for Payment Upon Election of REIT Status

100

Subsequent Event [Line Items]

Dividends declared per common share

$5.67

$0

$0

Dividends Payable, Date to be Paid

31-Dec-14

Dividends Payable, Date of Record

20-Nov-14

Subsequent Event

Description of Business and Basis of Presentation [Line Items]

Stock Issued During Period, Shares, New Issues

185,323

Special Dividend [Member]

Subsequent Event [Line Items]

Dividends Payable, Date Declared

29-Oct-14

Dividends declared per common share

$4.56

Special Dividend [Member] | Subsequent Event

Subsequent Event [Line Items]

Dividends Payable, Date Declared

26-Feb-15

Dividends declared per common share

$0.06

Dividends Payable, Date to be Paid

31-Mar-15

Dividends Payable, Date of Record

11-Mar-15

Ordinary Dividend [Member] | Subsequent Event

Subsequent Event [Line Items]

Dividends Payable, Date Declared

26-Feb-15

Dividends declared per common share

$0.34

Dividends Payable, Date to be Paid

31-Mar-15

Dividends Payable, Date of Record

11-Mar-15

CBS Corp.

Description of Business and Basis of Presentation [Line Items]

Accounts Receivable, Related Parties, Current

0

0

0

9.5

Net Cash Used in Operating Activities

Description of Business and Basis of Presentation [Line Items]

Misclassification correction

$2.70

$5.40

Common Stock

Description of Business and Basis of Presentation [Line Items]

Stock Issued During Period, Shares, New Issues

23,000,000

Common Stock | Shares Sold to Underwriter as Part of Total IPO

Description of Business and Basis of Presentation [Line Items]

Stock Issued During Period, Shares, New Issues

3,000,000

Initial_Public_Offering_Detail

Initial Public Offering (Details) (USD $)	0 Months Ended			12 Months Ended
In Millions, except Share data, unless otherwise specified	Dec. 01, 2014	Apr. 02, 2014	Jan. 15, 2014	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Capital Unit [Line Items]
Stock Issued During Period, Shares, New Issues	74,129		100
Proceeds from Initial Public Offering		$615		$615	$0	$0
Distribution of IPO proceeds to CBS				2,038.80	0	0
Proceeds from Initial Public Offering Held for Payment Upon Election of REIT Status		100
Common Stock
Capital Unit [Line Items]
Stock Issued During Period, Shares, New Issues		23,000,000
Shares Issued, Price Per Share		$28
Shares Sold to Underwriter as Part of Total IPO | Common Stock
Capital Unit [Line Items]
Stock Issued During Period, Shares, New Issues		3,000,000
IPO Proceeds
Capital Unit [Line Items]
Distribution of IPO proceeds to CBS		$515

Summary_of_Significant_Account3

Summary of Significant Accounting Policies - Property, Plant, and Equipment (Details)	12 Months Ended
	Dec. 31, 2014
Building and Building Improvements | Minimum
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	20 years
Building and Building Improvements | Maximum
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	40 years
Advertising Structures | Minimum
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	5 years
Advertising Structures | Maximum
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	20 years
Furniture and Fixtures | Minimum
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	3 years
Furniture and Fixtures | Maximum
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	10 years

Summary_of_Significant_Account4

Summary of Significant Accounting Policies - Narrative (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Jan. 31, 2014	Dec. 31, 2013
Summary of Accounting Policies [Line Items]
Long-term debt, Excluding Current Maturities	$2,198.30	$1,600	$0
Customer Billing Term	28 days
Minimum
Summary of Accounting Policies [Line Items]
Customer Contract Term	1 month
Intangible Asset, Useful Life	5 years
Lessee Leasing Arrangements, Operating Leases, Term of Contract	1 month
Lessee Leasing Arrangements, Prepaid Lease Term	1 month
Maximum
Summary of Accounting Policies [Line Items]
Customer Contract Term	12 months
Intangible Asset, Useful Life	40 years
Lessee Leasing Arrangements, Prepaid Lease Term	12 months
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_Summary

Property and Equipment - Summary of Property, Plant and Equipment (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Property, Plant and Equipment [Line Items]
Property and Equipment	1,975.90	$1,892
Less: accumulated depreciation	1,193	1,136.60
Property and equipment, net	782.9	755.4
Land
Property, Plant and Equipment [Line Items]
Property and Equipment	88.1	88.6
Building and Building Improvements
Property, Plant and Equipment [Line Items]
Property and Equipment	47	45
Building and Building Improvements | Minimum
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	20 years
Building and Building Improvements | Maximum
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	40 years
Advertising Structures
Property, Plant and Equipment [Line Items]
Property and Equipment	1,745.60	1,662.30
Advertising Structures | Minimum
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	5 years
Advertising Structures | Maximum
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	20 years
Furniture and Fixtures
Property, Plant and Equipment [Line Items]
Property and Equipment	78.1	77.2
Furniture and Fixtures | Minimum
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	3 years
Furniture and Fixtures | Maximum
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	10 years
Construction in progress
Property, Plant and Equipment [Line Items]
Property and Equipment	17.1	$18.90

Property_and_Equipment_Narrati

Property and Equipment - Narrative (Details) (USD $)	3 Months Ended								12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Property, Plant and Equipment [Abstract]
Depreciation	$27.90	$26.70	$26.50	$26.10	$26.20	$26.40	$25.90	$26	$107.20	$104.50	$105.90

Goodwill_and_Other_Intangible_2

Goodwill and Other Intangible Assets - Schedule of Goodwill (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014		Dec. 31, 2013
Goodwill [Roll Forward]
Goodwill, Beginning Balance	$1,865.70		$1,877.20
Currency translation adjustments	-10.5		-5.1
Additions	299.2
Dispositions	-0.2		-6.4
Goodwill, Ending Balance	2,154.20		1,865.70
United States
Goodwill [Roll Forward]
Goodwill, Beginning Balance	1,751.60		1,758
Currency translation adjustments	0		0
Additions	299.2	[1]
Dispositions	-0.2		-6.4
Goodwill, Ending Balance	2,050.60		1,751.60
International
Goodwill [Roll Forward]
Goodwill, Beginning Balance	114.1		119.2
Currency translation adjustments	-10.5		-5.1
Additions	0
Dispositions	0		0
Goodwill, Ending Balance	$103.60		$114.10
[1]	In 2014, we completed the Acquisition (see Note 12. Acquisition).

Goodwill_and_Other_Intangible_3

Goodwill and Other Intangible Assets - Schedule of Finite-Lived Intangible Assets (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Finite-Lived Intangible Assets [Line Items]
Gross	$1,633.80	$1,345.10
Accumulated Amortization	-1,000.60	-980.7
Net	633.2	364.4
Permits and leasehold agreements
Finite-Lived Intangible Assets [Line Items]
Gross	1,119.20	880.6
Accumulated Amortization	-677.2	-659
Net	442	221.6
Franchise agreements
Finite-Lived Intangible Assets [Line Items]
Gross	474.7	462.4
Accumulated Amortization	-321.1	-320.7
Net	153.6	141.7
Other intangible assets
Finite-Lived Intangible Assets [Line Items]
Gross	39.9	2.1
Accumulated Amortization	-2.3	-1
Net	$37.60	$1.10

Goodwill_and_Other_Intangible_4

Goodwill and Other Intangible Assets - Schedule of Future Amortization Expense (Details) (USD $)	Dec. 31, 2014
In Millions, unless otherwise specified
Goodwill and Intangible Assets Disclosure [Abstract]
2015	$76.70
2016	71.7
2017	49.5
2018	42.7
2019	$40.90

Goodwill_and_Other_Intangible_5

Goodwill and Other Intangible Assets - Narrative (Details) (USD $)	3 Months Ended								12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets	$27.70	$22.80	$22.60	$21.90	$23.10	$22.60	$22.70	$22.90	$95	$91.30	$90.90
Amortization of direct lease acquisition costs									$33.80	$30.90	$31.10
Minimum
Finite-Lived Intangible Assets [Line Items]
Intangible Asset, Useful Life									5 years
Maximum
Finite-Lived Intangible Assets [Line Items]
Intangible Asset, Useful Life									40 years
Direct Lease Acquisition Cost | Minimum
Finite-Lived Intangible Assets [Line Items]
Intangible Asset, Useful Life									28 days
Direct Lease Acquisition Cost | Maximum
Finite-Lived Intangible Assets [Line Items]
Intangible Asset, Useful Life									1 year

Asset_Retirement_Obligation_Na

Asset Retirement Obligation - Narrative (Details)	12 Months Ended
	Dec. 31, 2014
Asset Retirement Obligation Disclosure [Abstract]
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_Sc

Asset Retirement Obligation - Schedule of Change in Asset Retirement Obligation (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]
Beginning of period	$31.70	$30.60
Accretion expense	2.3	2.2	2.5
Additions	4.7	0.4
Liabilities settled	-1.2	-0.9
Foreign currency translation adjustments	-0.9	-0.6
End of period	$36.60	$31.70	$30.60

Related_Party_Transactions_Nar

Related Party Transactions - Narrative (Details) (USD $)	3 Months Ended									12 Months Ended			0 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014		Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2014	Mar. 31, 2016	Dec. 29, 2014
	joint_venture									joint_venture
Related Party Transaction [Line Items]
Revenues	$395	[1]	$336.50	$334.40	$287.90	$343.90	$338.20	$332.70	$279.20	$1,353.80	$1,294	$1,284.60
Equity Method Investment, Ownership Percentage	50.00%									50.00%			50.00%
Equity Method Investment, Number of Investments	2									2			2
Equity Method Investments	20.1					24.1				20.1	24.1		20.1
CBS Corp.
Related Party Transaction [Line Items]
Selling, General and Administrative Expenses from Transactions with Related Party										9.6	60.9	47.7
Accounts Receivable, Related Parties, Current	0					0				0	0		0		9.5
Accounts Payable, Related Parties, Current	0.2					0				0.2	0		0.2
Licensing Agreement, Corporate Name, Term of Agreement													31-Dec-14
Revenues										18.6
Revenue from Related Parties										7.7	14.9	16.6
Other Related Parties
Related Party Transaction [Line Items]
Revenues										10.4
Revenue from Related Parties										$4.30	$9.30	$9.40
Subsequent Event | CBS Corp.
Related Party Transaction [Line Items]
Licensing Agreement, Mark and Logo, Term of Agreement														31-Mar-16
[1]	In the fourth quarter of 2014, we issued the New Senior Notes (see Note 8. Long-Term Debt) and completed the Acquisition (see Note 12. Acquisition) and also reversed an additional $3.3 million of Deferred income tax liabilities, net, related to our REIT conversion.

LongTerm_Debt_Schedule_of_Long

Long-Term Debt - Schedule of Long-Term Debt Instruments (Details) (USD $)	Dec. 31, 2014	Jan. 31, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Debt Instrument [Line Items]
Long-term debt, Excluding Current Maturities	$2,198.30	$1,600	$0
Weighted average cost of debt	4.60%		0.00%
Secured Debt | Term loan, due 2021
Debt Instrument [Line Items]
Long-term debt, Excluding Current Maturities	798.3		0
Senior Notes
Debt Instrument [Line Items]
Long-term debt, Excluding Current Maturities	1,399.30		0
Senior Notes | 5.250% senior unsecured notes, due 2022
Debt Instrument [Line Items]
Long-term debt, Excluding Current Maturities	549.3		0
Senior Notes | 5.625% senior unsecured notes, due 2024
Debt Instrument [Line Items]
Long-term debt, Excluding Current Maturities	400		0
Senior Notes | 5.875% senior unsecured notes, due 2025
Debt Instrument [Line Items]
Long-term debt, Excluding Current Maturities	$450		$0

LongTerm_Debt_Narrative_Detail

Long-Term Debt - Narrative (Details) (USD $)	12 Months Ended		0 Months Ended	3 Months Ended
	Dec. 31, 2014		Jan. 31, 2014	Dec. 31, 2014		Dec. 31, 2013	Oct. 01, 2014	Mar. 05, 2015	Jan. 31, 2015
	subsidiary
Line of Credit Facility [Line Items]
Outstanding letters of credit and surety bonds	$103,300,000			$103,300,000
Covenant description	The Credit Agreement also requires that, in connection with the incurrence of certain indebtedness, we maintain a Consolidated Total Leverage Ratio, which is the ratio of our consolidated total debt to our Consolidated EBITDA for the trailing four consecutive quarters, of no greater than 6.0 to 1.0.
Debt Covenant, Consolidated Total Leverage Ratio	6
Consolidated Total Leverage Ratio	4.7
Debt Instrument [Line Items]
Other Long-term Debt, Noncurrent	700,000	[1]		700,000	[1]	0
Number of wholly owned subsidiaries	2
Deferred finance costs	36,500,000			36,500,000
Secured Debt | Term loan, due 2021
Debt Instrument [Line Items]
Debt face amount			800,000,000
Maturity date			31-Jan-21
Stated interest rate	2.25%		2.25%	2.25%
Adjustment to term loan reference rate to arrive at effective rate	plus the greater of the London Interbank Offered Rate (“LIBOR”) or 0.75%
Basis spread on variable rate	0.75%
Interest rate at period end	3.00%			3.00%
Debt discount	1,700,000			1,700,000
Senior Notes | 5.250% senior unsecured notes, due 2022
Debt Instrument [Line Items]
Debt face amount			400,000,000				150,000,000
Maturity date			31-Jan-22
Stated interest rate			5.25%				5.25%
Debt discount	800,000			800,000
Allowable early redemption percentage for senior notes	35.00%
Senior Notes | 5.625% senior unsecured notes, due 2024
Debt Instrument [Line Items]
Debt face amount			400,000,000
Maturity date			31-Jan-24
Stated interest rate			5.63%
Allowable early redemption percentage for senior notes	35.00%
Senior Notes | 5.875% senior unsecured notes, due 2025
Debt Instrument [Line Items]
Debt face amount							450,000,000
Maturity date				15-Mar-25
Stated interest rate							5.88%
Allowable early redemption percentage for senior notes	35.00%
Level 2
Debt Instrument [Line Items]
Long-term debt at fair value	2,200,000,000			2,200,000,000
Revolving Credit Facility
Line of Credit Facility [Line Items]
Maximum borrowing capacity			425,000,000
Credit facility, expiration date			31-Jan-19
Cash adjustment to debt compliance calculation	150,000,000			150,000,000
Commitment fee for unused commitments	1,900,000
Revolving Credit Facility, outstanding amount	0			0
Outstanding letters of credit and surety bonds	20,600,000			20,600,000
Covenant description	In addition, the terms of the Credit Agreement require that, as long as any commitments remain outstanding under the Revolving Credit Facility, we maintain a Consolidated Net Secured Leverage Ratio of no greater than 4.0 to 1.0.
Maximum Consolidated Net Secured Leverage Ratio	1.7
Maximum consolidated net secured coverage ratio, REIT election	4
Letter of Credit
Line of Credit Facility [Line Items]
Maximum borrowing capacity			80,000,000
Outstanding letters of credit and surety bonds	68,900,000			68,900,000
Subsequent Event | Revolving Credit Facility
Line of Credit Facility [Line Items]
Revolving Credit Facility, outstanding amount								50,000,000
Guaranteed Minimum Franchise Payments
Line of Credit Facility [Line Items]
Other Commitment, Due in Next Twelve Months	173,500,000			173,500,000
Guaranteed Minimum Franchise Payments | Subsequent Event
Line of Credit Facility [Line Items]
Other Commitment, Due in Next Twelve Months									$70,000,000
[1]	Reflects the outstanding balance as of December 31, 2014, of long-term debt assumed in conjunction with the Acquisition. (See Note 12. Acquisition.)

Accumulated_Other_Comprehensiv2

Accumulated Other Comprehensive Income - Schedule of Accumulated Other Comprehensive Income (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014		Dec. 31, 2013	Dec. 31, 2012
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	($75.10)		($66)	($75.60)
Other comprehensive income (loss) before reclassifications	-14		-9.7
Amortization of actuarial losses reclassified to net income	0.2		0.6
Deferred tax rate adjustment	-1.2		0	0
Total other comprehensive income (loss), net of tax	-15		-9.1	9.6
Ending balance	-90.1		-75.1	-66
Cumulative Translation Adjustments
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	-69.2		-54.3	-65.3
Other comprehensive income (loss) before reclassifications	-10.7		-14.9
Amortization of actuarial losses reclassified to net income	0		0
Deferred tax rate adjustment	0
Total other comprehensive income (loss), net of tax	-10.7		-14.9	11
Ending balance	-79.9		-69.2	-54.3
Net Actuarial Gain (Loss)
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	-5.9		-11.7	-10.3
Other comprehensive income (loss) before reclassifications	-3.3		5.2
Amortization of actuarial losses reclassified to net income	0.2	[1]	0.6
Deferred tax rate adjustment	-1.2
Total other comprehensive income (loss), net of tax	-4.3		5.8	-1.4
Ending balance	($10.20)		($5.90)	($11.70)
[1]	See Note 14. Retirement Benefits for additional details of items reclassified from accumulated other comprehensive income to net income.

Accumulated_Other_Comprehensiv3

Accumulated Other Comprehensive Income -Narrative (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Accumulated Other Comprehensive Income [Abstract]
Tax benefit (expense) related to actuarial gain (loss) included in other comprehensive income (loss)	($1.30)	($3.30)	$0.30

Equity_Details

Equity (Details) (USD $)	0 Months Ended			12 Months Ended			0 Months Ended
In Millions, except Share data, unless otherwise specified	Dec. 31, 2014	Dec. 01, 2014	Jan. 15, 2014	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Apr. 02, 2014	Mar. 14, 2014	Mar. 13, 2014
Class of Stock [Line Items]
Stock Issued During Period, Shares, New Issues		74,129	100
Payments to Acquire Other Investments				$3	$0	$0
Common Stock, Outstanding	136,624,157			136,624,157	0		120,000,000
Common Stock Dividends, Shares	16,536,001
Common Stock, Shares Authorized	450,000,000			450,000,000	0
Common Stock, Par or Stated Value Per Share	$0.01			$0.01
Common Stock, Shares, Issued	136,624,157			136,624,157	0		120,000,000
Preferred Stock, Shares Authorized	50,000,000			50,000,000
Preferred Stock, Par or Stated Value Per Share	$0.01			$0.01
Common Stock
Class of Stock [Line Items]
Stock Issued During Period, Shares, New Issues							23,000,000
Stockholders' Equity Note, Stock Split, Conversion Ratio								970,000
Common Stock, Outstanding								97,000,000	100
Shares Issued, Price Per Share							$28
Shares Sold to Underwriter | Common Stock
Class of Stock [Line Items]
Stock Issued During Period, Shares, New Issues							3,000,000

Restructuring_Charges_Narrativ

Restructuring Charges - Narrative (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014		Dec. 31, 2013	Dec. 31, 2012
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$9.80	[1]	$0	$2.50
Restructuring Reserve	3.9		0
Restructuring Charges [Member]
Restructuring Cost and Reserve [Line Items]
Share-based compensation, related to restructuring charges	$5.60
[1]	In 2014, restructuring charges (including stock-based compensation of $5.6 million), costs related to the Acquisition and stock-based compensation are classified as Corporate expense.

Acquisitions_Narrative_Details

Acquisitions Narrative (Details) (USD $)	3 Months Ended												12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014		Sep. 30, 2014		Jun. 30, 2014		Mar. 31, 2014		Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014		Dec. 31, 2013	Dec. 31, 2012	Oct. 01, 2014
Significant Acquisitions and Disposals [Line Items]
Significant Acquisitions and Disposals, Acquisition Costs or Sale Proceeds	$714.20												$714.20				$690
Revenues	395	[1]	336.5		334.4		287.9		343.9	338.2	332.7	279.2	1,353.80		1,294	1,284.60
Operating Income (Loss)	50.5	[1]	47.6		58.3		26.7		76.7	64.6	62.8	34.7	183.1		238.8	201.2
Other Long-term Debt, Noncurrent	0.7	[2]							0				0.7	[2]	0
Business Combination, Acquisition Related Costs	9	[1],[3]	1.4	[3]	0	[3]	0	[3]					10.4	[3]	0	0
Van Wagner
Significant Acquisitions and Disposals [Line Items]
Revenues													55.2
Operating Income (Loss)													10.1
Long-term Debt	1.4	[4]											1.4	[4]
Bridge Loan
Significant Acquisitions and Disposals [Line Items]
Line of Credit Facility, Commitment Fee Amount													$7.60
[1]	In the fourth quarter of 2014, we issued the New Senior Notes (see Note 8. Long-Term Debt) and completed the Acquisition (see Note 12. Acquisition) and also reversed an additional $3.3 million of Deferred income tax liabilities, net, related to our REIT conversion.
[2]	Reflects the outstanding balance as of December 31, 2014, of long-term debt assumed in conjunction with the Acquisition. (See Note 12. Acquisition.)
[3]	In 2014, restructuring charges (including stock-based compensation of $5.6 million), costs related to the Acquisition and stock-based compensation are classified as Corporate expense.
[4]	In conjunction with the Acquisition, we assumed a total of $1.4 million of long term debt, due to three unrelated third parties. The debt has varying maturities through June 1, 2021. In November 2014, we prepaid one of the debt obligations, leaving a remaining balance of $0.7 million as of December 31, 2014, with varying maturities through January 31, 2017.

Acquisitions_Allocation_of_ass

Acquisitions Allocation of assets acquired and liabilities assumed (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014		Oct. 01, 2014	Dec. 31, 2013	Dec. 31, 2012
Significant Acquisitions and Disposals [Line Items]
Significant Acquisitions and Disposals, Acquisition Costs or Sale Proceeds	$714.20		$690
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Consideration Transferred	24.2
Assets, Current	355.3			317.2
Property, Plant and Equipment, Net	782.9			755.4
Goodwill	2,154.20			1,865.70	1,877.20
Finite-Lived Intangible Assets, Net	633.2			364.4
Other assets	98			52.8
Liabilities, Current	-255.2			-212.2
Other liabilities	-70.8			-68.7
Van Wagner
Significant Acquisitions and Disposals [Line Items]
Assets, Current	44.4
Property, Plant and Equipment, Net	83.2
Goodwill	299.2
Finite-Lived Intangible Assets, Net	316.6	[1]
Other assets	11.1
Liabilities, Current	-34.5
Long-term Debt, Excluding Current Maturities	-1.4	[2]
Other liabilities	-4.4
Net Assets	$714.20
[1]	Intangible assets included with the preliminary purchase price allocation are as follows:
[2]	In conjunction with the Acquisition, we assumed a total of $1.4 million of long term debt, due to three unrelated third parties. The debt has varying maturities through June 1, 2021. In November 2014, we prepaid one of the debt obligations, leaving a remaining balance of $0.7 million as of December 31, 2014, with varying maturities through January 31, 2017.

Acquisitions_Allocation_of_int

Acquisitions Allocation of intangible assets acquired (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014		Dec. 31, 2013
Significant Acquisitions and Disposals [Line Items]
Finite-Lived Intangible Assets, Net	633.2		$364.40
Van Wagner
Significant Acquisitions and Disposals [Line Items]
Finite-Lived Intangible Assets, Net	316.6	[1]
Permits and leasehold agreements
Significant Acquisitions and Disposals [Line Items]
Finite-Lived Intangible Assets, Net	442		221.6
Permits and leasehold agreements | Van Wagner
Significant Acquisitions and Disposals [Line Items]
Finite-Lived Intangible Assets, Net	244
Franchise agreements
Significant Acquisitions and Disposals [Line Items]
Finite-Lived Intangible Assets, Net	153.6		141.7
Franchise agreements | Van Wagner
Significant Acquisitions and Disposals [Line Items]
Finite-Lived Intangible Assets, Net	34.8
Customer Relationships | Van Wagner
Significant Acquisitions and Disposals [Line Items]
Finite-Lived Intangible Assets, Net	16
Other intangible assets
Significant Acquisitions and Disposals [Line Items]
Finite-Lived Intangible Assets, Net	37.6		1.1
Other intangible assets | Van Wagner
Significant Acquisitions and Disposals [Line Items]
Finite-Lived Intangible Assets, Net	21.8
Minimum
Significant Acquisitions and Disposals [Line Items]
Finite-Lived Intangible Asset, Useful Life	5 years
Minimum | Permits and leasehold agreements
Significant Acquisitions and Disposals [Line Items]
Finite-Lived Intangible Asset, Useful Life	12 years
Minimum | Franchise agreements
Significant Acquisitions and Disposals [Line Items]
Finite-Lived Intangible Asset, Useful Life	4 years
Minimum | Customer Relationships
Significant Acquisitions and Disposals [Line Items]
Finite-Lived Intangible Asset, Useful Life	7 years
Minimum | Other intangible assets
Significant Acquisitions and Disposals [Line Items]
Finite-Lived Intangible Asset, Useful Life	1 year
Maximum
Significant Acquisitions and Disposals [Line Items]
Finite-Lived Intangible Asset, Useful Life	40 years
Maximum | Permits and leasehold agreements
Significant Acquisitions and Disposals [Line Items]
Finite-Lived Intangible Asset, Useful Life	20 years
Maximum | Franchise agreements
Significant Acquisitions and Disposals [Line Items]
Finite-Lived Intangible Asset, Useful Life	15 years
Maximum | Customer Relationships
Significant Acquisitions and Disposals [Line Items]
Finite-Lived Intangible Asset, Useful Life	7 years
Maximum | Other intangible assets
Significant Acquisitions and Disposals [Line Items]
Finite-Lived Intangible Asset, Useful Life	5 years
[1]	Intangible assets included with the preliminary purchase price allocation are as follows:

Acquisitions_Unaudited_pro_for

Acquisitions Unaudited pro forma financial information (Details) (USD $)	12 Months Ended
In Millions, except Per Share data, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Acquisitions [Abstract]
Business Acquisition, Pro Forma Revenue	$1,505.90	$1,500.30
Business Acquisition, Pro Forma Income (Loss) from Continuing Operations before Changes in Accounting and Extraordinary Items, Net of Tax	193.6	240.1
Business Acquisition, Pro Forma Net Income (Loss)	$293.60	$117.60
Business Acquisition, Pro Forma Earnings Per Share, Basic	$2.57	$1.03
Business Acquisition, Pro Forma Earnings Per Share, Diluted	$2.56	$1.02

StockBased_Compensation_Narrat

Stock-Based Compensation - Narrative (Details) (USD $)	0 Months Ended	12 Months Ended	0 Months Ended	12 Months Ended
In Millions, except Share data, unless otherwise specified	Jul. 16, 2014	Dec. 31, 2014	Mar. 27, 2014	Dec. 31, 2013	Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation Not yet Recognized, Share-based Awards Other than Options		$18.10
Compensation Not yet Recognized, Stock Options		0.6
Share-based Compensation Arrangements, Share-based Payment Awards, Options, Conversion Award Ratio	1.9
Remaining Contractual Life		4 years 5 months 28 days
Share Price		$26.84
Options Outstanding, Intrinsic Value		5.2
Options Exercisable, Weighted Average Remaining Contractual Term		2 years 10 months 6 days
Options Exercisable, Intrinsic Value		3.1
Restricted Stock Units and Performance Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation Cost Not yet Recognized, Period for Recognition		2 years 9 months 7 days
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Conversion of Award, Ratio			2.2
Restricted Stock Units (RSUs) | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award Vesting Period		3 years
Restricted Stock Units (RSUs) | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award Vesting Period		4 years
Performance Shares (PRSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance Condition Period		1 year 0 months 0 days
Performance Shares (PRSUs) | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
PayoutOnStockBasedCompensationAwards		0.00%
Performance Shares (PRSUs) | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
PayoutOnStockBasedCompensationAwards		120.00%
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation Cost Not yet Recognized, Period for Recognition		2 years 7 months 0 days
Omnibus Stock Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized		8,000,000
Outstanding OUTFRONT stock options converted from CBS stock options	409,207
Omnibus Stock Incentive Plan [Member] | Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Converted to Awards, Number			561,021
Awards Other than Options, Vested in Period, Fair Value		1.6
Omnibus Stock Incentive Plan [Member] | Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding OUTFRONT stock options converted from CBS stock options	409,207
CBS Corp. Equity and Incentive Plan | Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
CBS RSUs converted to OUTFRONT RSUs			-256,172
Awards Other than Options, Vested in Period, Fair Value		$15.10		$16.40	$11.40
CBS Corp. Equity and Incentive Plan | Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award Vesting Period				4 years
Weighted Average Grant Date Fair Value, Options				$14.04	$8.83
Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Outstanding, Converted Awards, Number	219,741
CBS Corp. Equity and Incentive Plan | Stock options | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award Expiration Period				8 years
CBS Corp. Equity and Incentive Plan | Stock options | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award Expiration Period				10 years

StockBased_Compensation_Schedu

Stock-Based Compensation - Schedule of Compensation Cost for Share-based Payment Arrangements, Allocation of Share-based Compensation Costs by Plan (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense, before income taxes	$16	$7.50	$5.70
Tax benefit	-3	-3	-2.3
Stock-based compensation expense, net of tax	13	4.5	3.4
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense, before income taxes	13.1	6.8	5.2
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense, before income taxes	$2.90	$0.70	$0.50

StockBased_Compensation_Schedu1

Stock-Based Compensation - Schedule of Unvested Restricted Stock Units Roll Forward (Details) (USD $)	3 Months Ended	12 Months Ended
	Mar. 27, 2014	Dec. 31, 2014		Mar. 31, 2014
CBS Corp. Equity and Incentive Plan | Restricted Stock Units (RSUs)
RSUs and PRSUs, Nonvested, Number of Shares
Non-vested RSUs, beginning balance	472,490	472,490
Employee transfers and grants	11,875
Vested	-157,723	-67,561
Forfeited	-2,909
Non-vested RSUs, ending balance	323,733	0
CBS RSUs converted to OUTFRONT RSUs	-256,172
Non-vested CBS RSUs not converted to OUTFRONT RSUs(a)				67,561	[1]
Weighted Average Per Share Grant Date Fair Market Value
Weighted Average Grant Date Fair Value, Non-Vested, Beginning Balance (per share)	$32.09	$32.09		$33.16
Weighted Average Grant Date Fair Value, Grants in Period (per share)	$34.66
Weighted Average Grant Date Fair Value, Vested (per share)	$22.51	$33.16
Weighted Average Grant Date Fair Value, Forfeited (per share)	$37.67
Weighted Average Grant Date Fair Value, Non-Vested, Ending Balance (per share)	$36.80	$0		$33.16
CBS RSUs converted to OUTFRONT RSUs (per share)	$37.77
Omnibus Stock Incentive Plan [Member] | Restricted Stock Units (RSUs)
RSUs and PRSUs, Nonvested, Number of Shares
Employee transfers and grants		488,729
Vested		-33,177
Forfeited		-37,788
Weighted Average Per Share Grant Date Fair Market Value
Weighted Average Grant Date Fair Value, Grants in Period (per share)		$26.76
Weighted Average Grant Date Fair Value, Vested (per share)		$16.29
Weighted Average Grant Date Fair Value, Forfeited (per share)		$24
CBS RSUs converted to OUTFRONT RSUs (per share)	$17.24
Non-vested OUTFRONT RSUs converted from CBS RSUs (per share)	561,021
Omnibus Stock Incentive Plan [Member] | Performance Shares (PRSUs)
RSUs and PRSUs, Nonvested, Number of Shares
Employee transfers and grants		182,844
Vested		-29,458
Forfeited		-15,289
Weighted Average Per Share Grant Date Fair Market Value
Weighted Average Grant Date Fair Value, Grants in Period (per share)		$29.97
Weighted Average Grant Date Fair Value, Vested (per share)		$15.28
Weighted Average Grant Date Fair Value, Forfeited (per share)		$26.39
Omnibus Stock Incentive Plan [Member] | Restricted Stock Units and Performance Restricted Stock Units
RSUs and PRSUs, Nonvested, Number of Shares
Non-vested RSUs, ending balance		1,278,602
Weighted Average Per Share Grant Date Fair Market Value
Weighted Average Grant Date Fair Value, Non-Vested, Ending Balance (per share)		$21.92
Dividend Paid | Omnibus Stock Incentive Plan [Member] | Restricted Stock Units (RSUs)
RSUs and PRSUs, Nonvested, Number of Shares
Employee transfers and grants		161,720	[2]
Weighted Average Per Share Grant Date Fair Market Value
Weighted Average Grant Date Fair Value, Grants in Period (per share)		$26.73
[1]	Reflects CBS RSUs which vested in April 2014.
[2]	Represents an adjustment to the outstanding awards for the E&P Purge pursuant to the anti-dilution provisions of the Stock Plan.

StockBased_Compensation_Schedu2

Stock-Based Compensation - Schedule of Stock Options, Valuation Assumptions (Details)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Expected dividend yield	1.38%	2.00%
Expected stock price volatility	35.00%	40.20%
Risk-free interest rate	1.20%	1.01%
Expected term of options (years)	5 years	5 years 7 days

StockBased_Compensation_Schedu3

Stock-Based Compensation - Schedule of Stock Options Roll Forward (Details) (USD $)	0 Months Ended	12 Months Ended
	Jul. 16, 2014	Dec. 31, 2014
CBS Corp. Equity and Incentive Plan | Stock options
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Number of options outstanding, beginning balance		399,581
CBS stock options converted to OUTFRONT stock options	-219,741
Exercised		-123,574
Forfeited or Expired		-39,405
Number of options exerciseable		16,861
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Weighted average exercise price, options outstanding, beginning balance		$29.30
Weighted average exercise price, exercised		$22.05
Weighted average exercise price, forfeited or expired		$30.67
Weighted average exercise price, options outstanding, ending balance	$33.27
Weighted average exercise price, options exerciseable		$27.38
Omnibus Stock Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Outstanding OUTFRONT stock options converted from CBS stock options	409,207
Omnibus Stock Incentive Plan [Member] | Stock options
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Outstanding OUTFRONT stock options converted from CBS stock options	409,207
Adjustment in connection with special dividend(a)		63,898	[1]
Exercised		-3,519
Forfeited or Expired		-18,696
Number of options outstanding, ending balance		450,890
Number of options exerciseable		191,445
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Weighted average exercise price, exercised		$12.73
Weighted average exercise price, forfeited or expired		$19.96
Weighted average exercise price, options outstanding, ending balance	$17.87	$15.29
Weighted average exercise price, options exerciseable		$10.62
[1]	Represents an adjustment to the outstanding awards for the E&P Purge pursuant to the anti-dilution provisions of the Stock Plan.

StockBased_Compensation_Schedu4

Stock-Based Compensation - Schedule of Additional Stock Option Information (Details) (CBS Corp. Equity and Incentive Plan, USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Tax benefit from stock option exercises	$0	$2.50	$0.80
Intrinsic value of stock option exercises	5.3	6.1	1.9
CBS Corp.
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Cash paid to CBS by CBS Outdoor employees for stock option exercises	$5	$4	$6.50

StockBased_Compensation_Schedu5

Stock-Based Compensation - Schedule of Options by Exercise Price (Details) (USD $)	12 Months Ended
	Dec. 31, 2014
CBS Equity and Incentive Plan [Member] | $0 to 4.99
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price Range, Lower Range Limit	$0
Exercise Price Range, Upper Range Limit	$4.99
CBS Equity and Incentive Plan [Member] | $5 to 9.99
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price Range, Lower Range Limit	$5
Exercise Price Range, Upper Range Limit	$9.99
CBS Equity and Incentive Plan [Member] | $10 to 14.99
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price Range, Lower Range Limit	$10
Exercise Price Range, Upper Range Limit	$14.99
CBS Equity and Incentive Plan [Member] | $20 to 24.99
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price Range, Lower Range Limit	$20
Exercise Price Range, Upper Range Limit	$24.99
CBS Equity and Incentive Plan [Member] | $25 to 29.99
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise Price Range, Lower Range Limit	$25
Exercise Price Range, Upper Range Limit	$29.99
Omnibus Stock Incentive Plan [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of Options, Outstanding	450,890
Number of Options, Exercisable	191,445
Omnibus Stock Incentive Plan [Member] | $0 to 4.99
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of Options, Outstanding	64,556
Options Outstanding Remaining Contractual Life (Years)	2 years 1 month 25 days
Options Outstanding, Weighted Average Exercise Price	$2.43
Number of Options, Exercisable	64,556
Options Exercisable, Weighted Average Exercise Price	$2.43
Omnibus Stock Incentive Plan [Member] | $5 to 9.99
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of Options, Outstanding	23,446
Options Outstanding Remaining Contractual Life (Years)	3 years 2 months 1 day
Options Outstanding, Weighted Average Exercise Price	$6.25
Number of Options, Exercisable	23,446
Options Exercisable, Weighted Average Exercise Price	$6.25
Omnibus Stock Incentive Plan [Member] | $10 to 14.99
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of Options, Outstanding	180,908
Options Outstanding Remaining Contractual Life (Years)	3 years 6 months 19 days
Options Outstanding, Weighted Average Exercise Price	$12.64
Number of Options, Exercisable	67,162
Options Exercisable, Weighted Average Exercise Price	$12.49
Omnibus Stock Incentive Plan [Member] | $20 to 24.99
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of Options, Outstanding	78,567
Options Outstanding Remaining Contractual Life (Years)	6 years 1 month 14 days
Options Outstanding, Weighted Average Exercise Price	$20.07
Number of Options, Exercisable	10,429
Options Exercisable, Weighted Average Exercise Price	$20.07
Omnibus Stock Incentive Plan [Member] | $25 to 29.99
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of Options, Outstanding	103,413
Options Outstanding Remaining Contractual Life (Years)	6 years 8 months 20 days
Options Outstanding, Weighted Average Exercise Price	$26.39
Number of Options, Exercisable	25,852
Options Exercisable, Weighted Average Exercise Price	$26.39

Retirement_Benefits_Narrative_

Retirement Benefits - Narrative (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
	plan
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plans, Estimated Future Employer Contributions in Next Fiscal Year	$2.20
Number of Defined Benefit Pension Plans	2
Accumulated Benefit Obligation	46.6	41.6
Estimated amortization from AOCI of net actuarial losses	0.9
Multiemployer Plan, Period Contributions	2	1.6	1.7
Defined Contribution Plan, employer contributions	$3.80	$3.70	$3.40
Fixed Income Securities
Defined Benefit Plan Disclosure [Line Items]
Plan Asset Allocations	40.00%
Equity Securities
Defined Benefit Plan Disclosure [Line Items]
Plan Asset Allocations	53.00%

Retirement_Benefits_Schedule_o

Retirement Benefits - Schedule of Changes in Projected Benefit Obligations (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation, beginning of year	$46	$52.70	$46.80
Service cost	1.4	1.7	1.5
Interest cost	2.2	2	2.2
Actuarial (gain) loss	7.2	-5.1	2.7
Benefits paid	-1.8	-1.6	-2.2
Cumulative translation adjustments	-4.1	-3.7	1.7
Benefit obligation, end of year	$50.90	$46	$52.70

Retirement_Benefits_Schedule_o1

Retirement Benefits - Schedule of Changes in Fair Value of Plan Assets (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets, beginning of year	$43.70	$40.10
Actual return on plan assets	4.1	4.5
Employer contributions	1.6	3.8
Benefits paid	-1.8	-1.6	-2.2
Cumulative translation adjustments	-3.5	-3.1
Fair value of plan assets, end of year	$44.10	$43.70	$40.10

Retirement_Benefits_Schedule_o2

Retirement Benefits - Schedule of Amounts Recognized in Balance Sheet (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Defined Benefit Plan, Amounts Recognized in Balance Sheet [Abstract]
Funded status, end of year	($6.80)	($2.30)
Other noncurrent liabilities	-6.8	-2.3
Net amounts recognized	($6.80)	($2.30)

Retirement_Benefits_Schedule_o3

Retirement Benefits - Schedule of Net Period Benefit Cost Not yet Recognized (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
In Millions, unless otherwise specified
Compensation and Retirement Disclosure [Abstract]
Net actuarial loss	($14.50)	($10.20)
Deferred Tax Rate Adjustment, as of date	-1.2	0
Deferred income taxes	5.5	4.3
Accumulated other comprehensive loss	-90.1	-75.1	-66	-75.6
Net amount recognized in accumulated other comprehensive loss		($5.90)

Retirement_Benefits_Schedule_o4

Retirement Benefits - Schedule of Accumulated Benefit Obligations in Excess of Fair Value of Plan Assets (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Defined Benefit Plan, Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets [Abstract]
Projected benefit obligation	$50.90	$2
Accumulated benefit obligation (a)	46.6	1.9	[1]
Fair value of plan assets (a)	$44.10	$1.80	[1]
[1]	As of December 31, 2013, the fair value of plan assets exceeded the accumulated benefit obligation for our pension plan in Canada.

Retirement_Benefits_Schedule_o5

Retirement Benefits - Schedule of Net Benefit Costs (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Service cost	$1.40	$1.70	$1.50
Interest cost	2.2	2	2.2
Expected return on plan assets	-2.5	-2.4	-2.1
Amortization of actuarial losses	0.3	1	0.9
Net periodic pension cost	$1.40	$2.30	$2.50

Retirement_Benefits_Schedule_o6

Retirement Benefits - Schedule of Amounts Recognized in Other Comprehensive Income (Loss) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Defined Benefit Plan Disclosure [Line Items]
Actuarial losses	($5.70)
Amortization of actuarial losses	0.3
Cumulative translation adjustments	1
Deferred tax rate adjustment	-1.2	0	0
Recognized in Other Comprehensive (Income) Loss, before Tax	-5.6
Deferred income taxes	1.3
Total other comprehensive income (loss), net of tax	-15	-9.1	9.6
Net Actuarial Gain (Loss)
Defined Benefit Plan Disclosure [Line Items]
Deferred tax rate adjustment	-1.2
Total other comprehensive income (loss), net of tax	($4.30)	$5.80	($1.40)

Retirement_Benefits_Schedule_o7

Retirement Benefits - Schedule of Assumptions Used (Details)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]
Discount rate	4.00%	5.00%
Rate of compensation increase	3.00%	3.00%
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]
Discount rate	5.00%	4.00%
Expected long-term return on plan assets	5.60%	6.00%
Rate of compensation increase	3.00%	3.00%

Retirement_Benefits_Schedule_o8

Retirement Benefits - Schedule of Fair Value Measurements (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013		Dec. 31, 2012
In Millions, unless otherwise specified
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value of Plan Assets	$44.10	$43.70		$40.10
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value of Plan Assets	2.5	6.3
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value of Plan Assets	41.6	37.4
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value of Plan Assets	0	0
Cash and cash equivalents
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value of Plan Assets	3	2.6	[1]
Cash and cash equivalents | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value of Plan Assets	1.2	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	1.8	2.6	[1]
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	0	[1]
Government related securities | Fixed Income Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value of Plan Assets	4.5	7.7
Government related securities | Level 1 | Fixed Income Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value of Plan Assets	1.3	1.4
Government related securities | Level 2 | Fixed Income Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value of Plan Assets	3.2	6.3
Government related securities | 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
Corporate bonds | Fixed Income Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value of Plan Assets	13.3	9.6	[2]
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	0	0	[2]
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	13.3	9.6	[2]
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	[2]
U.S. equity | Equity Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value of Plan Assets	7.7	7.5	[3]
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	4.9	[3]
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	7.7	2.6	[3]
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	[3]
International equity | Equity Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value of Plan Assets	15.6	16.2	[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	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	15.6	16.2	[3]
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	[3]
Other
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value of Plan Assets	0	0.1
Other | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value of Plan Assets	0	0
Other | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value of Plan Assets	0	0.1
Other | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value of Plan Assets	$0	$0
[1]	Assets categorized as Level 2 reflect investments in money market funds.
[2]	Securities of diverse industries, substantially all investment grade.
[3]	Assets categorized as Level 2 reflect investments in common collective funds.

Retirement_Benefits_Schedule_o9

Retirement Benefits - Schedule of Expected Benefit Payments (Details) (USD $)	Dec. 31, 2014
In Millions, unless otherwise specified
Compensation and Retirement Disclosure [Abstract]
2015	$1.20
2016	1.2
2017	1.3
2018	1.5
2019	1.7
2020-2024	$12.90

Income_Taxes_Narrative_Details

Income Taxes - Narrative (Details) (USD $)	3 Months Ended		12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Sep. 30, 2014	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Jan. 31, 2014
Operating Loss Carryforwards [Line Items]
Deferred Tax Benefit Due To REIT Conversion	$3.30	$232.30	$235.60
Cash paid for income taxes			53	112.8	96.5
Effective Income Tax Rate Reconciliation, Percent, Excluding Non-Cash Benefit Resulting From REIT Conversion			-30.30%	-40.70%	-44.50%
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent			35.00%
Operating Loss Carryforwards	33.7		33.7
Operating Loss Carryfoward, Not Subject to Expiration	20.9		20.9
Deferred Tax Assets, Valuation Allowance	6.9		6.9	10.1
Undistributed Earnings of Foreign Subsidiaries	214.4		214.4
Unrecognized Tax Benefits	1.2		1.2	4	4.9	5.4
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	0.8		0.8
Minimum
Operating Loss Carryforwards [Line Items]
Shareholders' Disclosure, Ownership Percentage							80.00%
Operating Loss Carryforwards, Expiration Date				1-Jan-15
Maximum
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards, Expiration Date				31-Dec-27
Majority Shareholder [Member]
Operating Loss Carryforwards [Line Items]
Unrecognized Tax Benefit Transferred to Parent			$2.10

Income_Taxes_Schedule_of_Compo

Income Taxes - Schedule of Components of Income Tax Expense (Benefit) (Details) (USD $)	6 Months Ended		12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Jul. 16, 2014	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest [Abstract]
United States			$102.80	$239.80	$201.90
Foreign			-4.8	-2.2	-1.7
Income before benefit (provision) for income taxes and equity in earnings of investee companies	40.1	-57.9	98	237.6	200.2
Current Income Tax Expense (Benefit), Continuing Operations [Abstract]
Federal			29.9	85.1	71.8
State and local			9.8	21.8	18.9
Foreign			3.8	5.2	4.9
Current Income Tax Expense (Benefit)			43.5	112.1	95.6
Federal			-198	-3.6	-5.1
State and local			-50.3	-10	1.7
Foreign			-1.2	-1.9	-3.2
Deferred tax (benefit) liability			-249.5	-15.5	-6.6
(Benefit) provision for income taxes			($206)	$96.60	$89

Income_Taxes_Book_Income_to_RE

Income Taxes - Book Income to REIT Taxable Income Reconciliation (Details) (USD $)	6 Months Ended		12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Jul. 16, 2014	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Book Income to REIT Taxable Income Reconciliation [Line Items]
Income before benefit (provision) for income taxes and equity in earnings of investee companies	$40.10	($57.90)	$98	$237.60	$200.20
Book depreciation in excess of tax depreciation	15
Book amortization in excess of tax amortization	21.3
Book/tax differences - stock-based compensation	8.1
Book/tax differences - capitalized costs	7.4
Book/tax differences - investments in joint ventures	2.5
Book/tax differences - other	4.2
REIT Taxable Income	97
Taxable REIT Subsidiaries [Member]
Book Income to REIT Taxable Income Reconciliation [Line Items]
Income before benefit (provision) for income taxes and equity in earnings of investee companies	-1.6
Qualified REIT Subsidiaries [Member]
Book Income to REIT Taxable Income Reconciliation [Line Items]
Income before benefit (provision) for income taxes and equity in earnings of investee companies	$38.50

Income_Taxes_Schedule_of_Effec

Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Tax Disclosure [Abstract]
Taxes on income at U.S. statutory rate	$34.30	$83.20	$70.10
Tax adjustment related to REIT conversion	-13.5	0	0
State and local taxes, net of federal tax benefit	4.8	7.6	13.4
Effect of foreign operations	2.9	4	2.2
Deferred tax adjustment due to REIT conversion	-235.6	0	0
Other, net	1.1	1.8	3.3
(Benefit) provision for income taxes	($206)	$96.60	$89

Income_Taxes_Schedule_of_Defer

Income Taxes - Schedule of Deferred Tax Asset and Liability (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Deferred Income Tax Assets:
Provision for expenses and losses	$2.80	$31.30
Postretirement and other employee benefits	4.6	9.9
Tax credit and loss carryforwards	10.9	14.6
Other	0	0.1
Total deferred income tax assets	18.3	55.9
Valuation allowance	-6.9	-10.1
Deferred income tax assets, net	11.4	45.8
Deferred Income Tax Liabilities:
Property, equipment and intangible assets	-18.8	-309.3
Other	0	-0.5
Total deferred income tax liabilities	-18.8	-309.8
Deferred income tax liabilities, net	($7.40)	($264)

Income_Taxes_Schedule_of_Unrec

Income Taxes - Schedule of Unrecognized Tax Benefits Roll Forward (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Unrecognized Tax Benefits, Beginning of Period	$4	$4.90	$5.40
Additions for current year tax positions	0.1	0.2	3.8
Reductions for prior year tax positions	-2.9	-1.1	-4.3
Unrecognized Tax Benefits, End of Period	$1.20	$4	$4.90

Earnings_Per_Share_EPS_Details

Earnings Per Share ("EPS") (Details) (USD $)	3 Months Ended									12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014		Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014		Dec. 31, 2013	Dec. 31, 2012
Earnings Per Share [Abstract]
Net income	$27.80	[1]	$248.30	$22.40	$8.40	$50	$37.20	$36.40	$19.90	$306.90		$143.50	$113.40
Weighted Average Number of Shares Outstanding, Basic										114.3		114.3	114.3
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements										0.5	[2]	0.5	0.5
Weighted Average Number of Shares Outstanding, Diluted										114.8		114.8	114.8
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount										0.2
[1]	In the fourth quarter of 2014, we issued the New Senior Notes (see Note 8. Long-Term Debt) and completed the Acquisition (see Note 12. Acquisition) and also reversed an additional $3.3 million of Deferred income tax liabilities, net, related to our REIT conversion.
[2]	The potential impact of an aggregate 0.2 million granted RSUs, PRSUs and stock options for 2014 was antidilutive.

Commitment_and_Contingencies_N

Commitment and Contingencies - Narrative (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Commitments and Contingencies Disclosure [Abstract]
Rent Expense	$317.40	$292	$283.20
Rent Expense, Contingent Rent Amounts	59.5	35.7	28.6
Outstanding Letters of Credit and Surety Bonds	103.3
Shares to be Issued Upon Achievement of Milestones	$0.90

Commitment_and_Contingencies_C

Commitment and Contingencies - Contractual Obligation, Fiscal Year Maturity Schedule (Details) (USD $)	Dec. 31, 2014
In Millions, unless otherwise specified
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2015	$122.10
2016	121.7
2017	101.6
2018	86.8
2019	73.8
2020 and thereafter	432.5
Operating Leases, Future Minimum Payments Due	938.5
Guaranteed Minimum Franchise Payments
Other Commitment, Fiscal Year Maturity [Abstract]
2015	173.5
2016	56
2017	43.2
2018	40.9
2019	27.1
2020 and thereafter	44.6
Guaranteed minimum franchise payments	$385.30

Segment_Information_Reconcilia

Segment Information - Reconciliation of Revenue from Segments to Consolidated (Details) (USD $)	3 Months Ended									12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014		Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014		Dec. 31, 2013	Dec. 31, 2012
Segment Reporting Information [Line Items]
Revenues	$395	[1]	$336.50	$334.40	$287.90	$343.90	$338.20	$332.70	$279.20	$1,353.80		$1,294	$1,284.60
United States
Segment Reporting Information [Line Items]
Revenues	356.4		296.3	291.1	255	302.5	296.5	285.9	245.2	1,198.80	[2]	1,130.10	1,098.60
Canada
Segment Reporting Information [Line Items]
Revenues										82.5	[2]	84.7	99.2
Latin America
Segment Reporting Information [Line Items]
Revenues										72.5	[2]	79.2	86.8
International
Segment Reporting Information [Line Items]
Revenues	38.6		40.2	43.3	32.9	41.4	41.7	46.8	34	155		163.9	186
Restructuring Charges [Member]
Segment Reporting Information [Line Items]
Share-based compensation, related to restructuring charges										$5.60
[1]	In the fourth quarter of 2014, we issued the New Senior Notes (see Note 8. Long-Term Debt) and completed the Acquisition (see Note 12. Acquisition) and also reversed an additional $3.3 million of Deferred income tax liabilities, net, related to our REIT conversion.
[2]	Revenues classifications are based on customers’ locations.

Segment_Information_Adjusted_O

Segment Information Adjusted OIBDA by Segment and Reconciliation to Consolidated Net Income (Details) (USD $)	3 Months Ended														12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014		Sep. 30, 2014		Jun. 30, 2014		Mar. 31, 2014		Dec. 31, 2013		Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013		Dec. 31, 2014		Dec. 31, 2013	Dec. 31, 2012
Segment Reporting Information [Line Items]
Net income	$27.80	[1]	$248.30		$22.40		$8.40		$50		$37.20	$36.40	$19.90		$306.90		$143.50	$113.40
Provision for income taxes															-206		96.6	89
Equity in earnings of investee companies, net of tax															-2.9		-2.5	-2.2
Interest income (expense), net															84.8		0	0
Other income (expense), net															0.3		1.2	1
Operating income	50.5	[1]	47.6		58.3		26.7		76.7		64.6	62.8	34.7		183.1		238.8	201.2
Restructuring charges															9.8	[2]	0	2.5
Acquisition costs	9	[1],[2]	1.4	[2]	0	[2]	0	[2]							10.4	[2]	0	0
Net gain (loss) on dispositions	-1.1		-0.5		0		-0.9		-17.5	[3]	-0.1	0.1	-9.8	[4]	-2.5		-27.3	2.2
Depreciation and amortization															202.2		195.8	196.8
Share-Based Compensation, Excluding Compensation-Related Restructuring Charges															10.4	[2]
Share-based Compensation	5.1		6.2		2.9		1.8		1.7		2.6	1.6	1.6		16		7.5	5.7
Adjusted OIBDA	120.6	[1]	106.9		110.3		75.6		110.2		116.1	113.1	75.4		413.4		414.8	408.4
Capital expenditures															64.2		60.9	48.2
United States
Segment Reporting Information [Line Items]
Operating income	75.8	[5]	64.3	[5]	64.2	[5]	40	[5]	81.7		72	65.2	48.2		244.3		267.1	216.4
Net gain (loss) on dispositions															-2.5		-27.5	1.6
Depreciation and amortization															174.4		166.8	165.6
Adjusted OIBDA	123.2		106.3		106.4		80.3		106.2		113.6	106.5	80.1		416.2		406.4	385.4
Capital expenditures															56.8		54.1	42.5
International
Segment Reporting Information [Line Items]
Operating income	0.3		-0.7		2.6		-5.7		1.8		0.6	4.1	-6.6		-3.5		-0.1	-2
Net gain (loss) on dispositions															0		-0.2	0.6
Depreciation and amortization															27.8		29	31.2
Adjusted OIBDA	7.4		6.3		9.5		1.1		9.1		7.9	11.5	0.6		24.3		29.1	30.5
Capital expenditures															7.4		6.8	5.7
Corporate
Segment Reporting Information [Line Items]
Operating income	-25.6	[6]	-16	[6]	-8.5	[6]	-7.6	[6]	-6.8		-8	-6.5	-6.9		-57.7		-28.2	-13.2
Adjusted OIBDA	($10)		($5.70)		($5.60)		($5.80)		($5.10)		($5.40)	($4.90)	($5.30)		($27.10)		($20.70)	($7.50)
[1]	In the fourth quarter of 2014, we issued the New Senior Notes (see Note 8. Long-Term Debt) and completed the Acquisition (see Note 12. Acquisition) and also reversed an additional $3.3 million of Deferred income tax liabilities, net, related to our REIT conversion.
[2]	In 2014, restructuring charges (including stock-based compensation of $5.6 million), costs related to the Acquisition and stock-based compensation are classified as Corporate expense.
[3]	During the fourth quarter of 2013, we sold 50% of our transit shelter operations in Los Angeles, and we and the buyer each subsequently contributed our respective 50% interests in these operations to a 50/50 joint venture they own together. This transaction resulted in a gain of $17.5 million.
[4]	During the first quarter of 2013, we exchanged most of our billboards in Salt Lake City for billboards in New Jersey resulting in a gain of $9.8 million.
[5]	We incurred incremental U.S. stand-alone costs of $1.7 million during the first quarter of 2014; $2.1 million during the second quarter of 2014, $2.7 million during the third quarter of 2014 and $2.7 million during the fourth quarter of 2014.
[6]	We incurred incremental corporate stand-alone costs of $2.1 million during the first quarter of 2014; $3.1 million during the second quarter of 2014, $2.5 million during the third quarter of 2014 and $2.7 million during the fourth quarter of 2014.

Segment_Information_Reconcilia1

Segment Information - Reconciliation of Assets from Segment to Consolidated (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Segment Reporting Information [Line Items]
Assets	$4,023.60	$3,355.50	$3,464.90
United States
Segment Reporting Information [Line Items]
Assets	3,704.20	3,027.60	3,114.40
International
Segment Reporting Information [Line Items]
Assets	270.4	327.9	350.5
Corporate
Segment Reporting Information [Line Items]
Assets	$49	$0	$0

Segment_Information_Long_Lived

Segment Information - Long Lived Assets by Geographic Areas (Details) (USD $)	Dec. 31, 2014		Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Segment Reporting Information [Line Items]
Long-Lived Assets	$3,630.10	[1]	$3,014.20	$3,135.70
United States
Segment Reporting Information [Line Items]
Long-Lived Assets	3,423.60	[1]	2,768.50	1,098.60
Canada
Segment Reporting Information [Line Items]
Long-Lived Assets	112	[1]	138.1	99.2
Latin America
Segment Reporting Information [Line Items]
Long-Lived Assets	$94.50	[1]	$107.60	$86.80
[1]	Reflects total assets less current assets, investments and non-current deferred tax assets.

Segment_Information_Narrative_

Segment Information - Narrative (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014
	segment
Segment Reporting Information [Line Items]
Number of Operating Segments	2
Restructuring Charges [Member]
Segment Reporting Information [Line Items]
Share-based compensation, related to restructuring charges	5.6

Condensed_Consolidating_Financ2

Condensed Consolidating Financial Information Narrative (Details)	Dec. 31, 2014
Subsequent Event [Line Items]
Equity Method Investment, Ownership Percentage	50.00%
Parent Company
Subsequent Event [Line Items]
Equity Method Investment, Ownership Percentage	100.00%

Condensed_Consolidating_Financ3

Condensed Consolidating Financial Information Condensed Balance Sheets (Details) (USD $)	Dec. 31, 2014	Jan. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
In Millions, unless otherwise specified
Condensed Balance Sheet Statements, Captions [Line Items]
Cash and cash equivalents	$28.50		$29.80	$20.20	$37.60
Receivables, less allowances	217.5		178.8
Other current assets	109.3		108.6
Total current assets	355.3		317.2
Property and equipment, net	782.9		755.4
Goodwill	2,154.20		1,865.70	1,877.20
Intangible assets	633.2		364.4
Investments in subsidiaries	0		0
Other assets	98		52.8
Intercompany	0		0
Total assets	4,023.60		3,355.50	3,464.90
Total current liabilities	255.2		212.2
Long-term debt, Excluding Current Maturities	2,198.30	1,600	0
Deferred income tax liabilities, net	17.2		288.5
Asset retirement obligation	36.6		31.7	30.6
Deficit In Excess Of Investment In Subsidiaries	0
Other liabilities	70.8		68.7
Intercompany	0		0
Liabilities	2,578.10		601.1
Total invested equity			2,754.40	2,843.90	2,990.60
Total stockholders' equity	1,445.50
Total liabilities and stockholders' equity/invested equity	4,023.60		3,355.50
Parent Company
Condensed Balance Sheet Statements, Captions [Line Items]
Cash and cash equivalents	0		0	0	0
Receivables, less allowances	0		0
Other current assets	0		0
Total current assets	0		0
Property and equipment, net	0		0
Goodwill	0		0
Intangible assets	0		0
Investments in subsidiaries	1,445.50		0
Other assets	0		0
Intercompany	0		0
Total assets	1,445.50		0
Total current liabilities	0		0
Long-term debt, Excluding Current Maturities	0
Deferred income tax liabilities, net	0		0
Asset retirement obligation	0		0
Deficit In Excess Of Investment In Subsidiaries	0
Other liabilities	0		0
Intercompany	0		0
Liabilities	0		0
Total invested equity			0
Total stockholders' equity	1,445.50
Total liabilities and stockholders' equity/invested equity	1,445.50		0
Subsidiary Issuer
Condensed Balance Sheet Statements, Captions [Line Items]
Cash and cash equivalents	11.5		0	0	0
Receivables, less allowances	0		0
Other current assets	5.3		0
Total current assets	16.8		0
Property and equipment, net	0		0
Goodwill	0		0
Intangible assets	0		0
Investments in subsidiaries	3,613		0
Other assets	31.2		0
Intercompany	0		0
Total assets	3,661		0
Total current liabilities	17.9		0
Long-term debt, Excluding Current Maturities	2,197.60
Deferred income tax liabilities, net	0		0
Asset retirement obligation	0		0
Deficit In Excess Of Investment In Subsidiaries	0
Other liabilities	0		0
Intercompany	0		0
Liabilities	2,215.50		0
Total invested equity			0
Total stockholders' equity	1,445.50
Total liabilities and stockholders' equity/invested equity	3,661		0
Guarantor Subsidiaries
Condensed Balance Sheet Statements, Captions [Line Items]
Cash and cash equivalents	8.8		2.1	9.5	10
Receivables, less allowances	186.5		146
Other current assets	83.5		89.1
Total current assets	278.8		237.2
Property and equipment, net	683.3		628.1
Goodwill	2,050.60		1,751.60
Intangible assets	633		364.2
Investments in subsidiaries	208.1		232.9
Other assets	59.5		46.5
Intercompany	75.1		66
Total assets	3,988.40		3,326.50
Total current liabilities	219.1		168.3
Long-term debt, Excluding Current Maturities	0.7
Deferred income tax liabilities, net	0		259.4
Asset retirement obligation	28.3		23.1
Deficit In Excess Of Investment In Subsidiaries	2,167.50
Other liabilities	64.4		65.6
Intercompany	62.9		55.7
Liabilities	2,542.90		572.1
Total invested equity			2,754.40
Total stockholders' equity	1,445.50
Total liabilities and stockholders' equity/invested equity	3,988.40		3,326.50
Non-Guarantor Subsidiaries
Condensed Balance Sheet Statements, Captions [Line Items]
Cash and cash equivalents	8.2		27.7	10.7	27.6
Receivables, less allowances	31		32.8
Other current assets	20.5		19.5
Total current assets	59.7		80
Property and equipment, net	99.6		127.3
Goodwill	103.6		114.1
Intangible assets	0.2		0.2
Investments in subsidiaries	0		0
Other assets	7.3		6.3
Intercompany	62.9		55.7
Total assets	333.3		383.6
Total current liabilities	18.2		43.9
Long-term debt, Excluding Current Maturities	0
Deferred income tax liabilities, net	17.2		29.1
Asset retirement obligation	8.3		8.6
Deficit In Excess Of Investment In Subsidiaries	0
Other liabilities	6.4		3.1
Intercompany	75.1		66
Liabilities	125.2		150.7
Total invested equity			232.9
Total stockholders' equity	208.1
Total liabilities and stockholders' equity/invested equity	333.3		383.6
Eliminations
Condensed Balance Sheet Statements, Captions [Line Items]
Cash and cash equivalents	0		0	0	0
Receivables, less allowances	0		0
Other current assets	0		0
Total current assets	0		0
Property and equipment, net	0		0
Goodwill	0		0
Intangible assets	0		0
Investments in subsidiaries	-5,266.60		-232.9
Other assets	0		0
Intercompany	-138		-121.7
Total assets	-5,404.60		-354.6
Total current liabilities	0		0
Long-term debt, Excluding Current Maturities	0
Deferred income tax liabilities, net	0		0
Asset retirement obligation	0		0
Deficit In Excess Of Investment In Subsidiaries	-2,167.50
Other liabilities	0		0
Intercompany	-138		-121.7
Liabilities	-2,305.50		-121.7
Total invested equity			-232.9
Total stockholders' equity	-3,099.10
Total liabilities and stockholders' equity/invested equity	($5,404.60)		($354.60)

Condensed_Consolidating_Financ4

Condensed Consolidating Financial Information Condensed Income Statements (Details) (USD $)	3 Months Ended														6 Months Ended		12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014		Sep. 30, 2014		Jun. 30, 2014		Mar. 31, 2014		Dec. 31, 2013		Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013		Dec. 31, 2014	Jul. 16, 2014	Dec. 31, 2014		Dec. 31, 2013	Dec. 31, 2012
Condensed Income Statements, Captions [Line Items]
Billboard																	$972.10		$925.70	$913.60
Transit and other																	381.7		368.3	371
Total revenues	395	[1]	336.5		334.4		287.9		343.9		338.2	332.7	279.2				1,353.80		1,294	1,284.60
Operating																	726.5		686.9	700.1
Selling, general and administrative																	224.3		199.8	181.8
Restructuring charges																	9.8	[2]	0	2.5
Acquisition costs	9	[1],[2]	1.4	[2]	0	[2]	0	[2]									10.4	[2]	0	0
Net (gain) loss on dispositions	-1.1		-0.5		0		-0.9		-17.5	[3]	-0.1	0.1	-9.8	[4]			-2.5		-27.3	2.2
Depreciation	27.9		26.7		26.5		26.1		26.2		26.4	25.9	26				107.2		104.5	105.9
Amortization	27.7		22.8		22.6		21.9		23.1		22.6	22.7	22.9				95		91.3	90.9
Total expenses																	1,170.70		1,055.20	1,083.40
Operating Income (Loss)	50.5	[1]	47.6		58.3		26.7		76.7		64.6	62.8	34.7				183.1		238.8	201.2
Interest income (expense), net																	-84.8		0	0
Other income (expense), net																	-0.3		-1.2	-1
Income before benefit (provision) for income taxes and equity in earnings of investee companies															40.1	-57.9	98		237.6	200.2
Benefit (provision) for income taxes																	206		-96.6	-89
Equity in earnings of investee companies, net of tax																	2.9		2.5	2.2
Net income	27.8	[1]	248.3		22.4		8.4		50		37.2	36.4	19.9				306.9		143.5	113.4
Cumulative translation adjustments																	-10.7		-14.9	11
Net actuarial gain (loss)																	-3.1		5.8	-1.4
Deferred tax rate adjustment																	-1.2		0	0
Total other comprehensive income (loss), net of tax																	-15		-9.1	9.6
Total comprehensive income																	291.9		134.4	123
Parent Company
Condensed Income Statements, Captions [Line Items]
Billboard																	0		0	0
Transit and other																	0		0	0
Total revenues																	0		0	0
Operating																	0		0	0
Selling, general and administrative																	1.3		0	0
Restructuring charges																	0			0
Acquisition costs																	0	[2]
Net (gain) loss on dispositions																	0		0	0
Depreciation																	0		0	0
Amortization																	0		0	0
Total expenses																	1.3		0	0
Operating Income (Loss)																	-1.3		0	0
Interest income (expense), net																	0
Other income (expense), net																	0		0	0
Income before benefit (provision) for income taxes and equity in earnings of investee companies																	-1.3		0	0
Benefit (provision) for income taxes																	0		0	0
Equity in earnings of investee companies, net of tax																	308.2		0	0
Net income																	306.9		0	0
Cumulative translation adjustments																	-10.7		0	0
Net actuarial gain (loss)																	-3.1		0	0
Deferred tax rate adjustment																	-1.2
Total other comprehensive income (loss), net of tax																	-15		0	0
Total comprehensive income																	291.9		0	0
Subsidiary Issuer
Condensed Income Statements, Captions [Line Items]
Billboard																	0		0	0
Transit and other																	0		0	0
Total revenues																	0		0	0
Operating																	0		0	0
Selling, general and administrative																	0		0	0
Restructuring charges																	0			0
Acquisition costs																	0	[2]
Net (gain) loss on dispositions																	0		0	0
Depreciation																	0		0	0
Amortization																	0		0	0
Total expenses																	0		0	0
Operating Income (Loss)																	0		0	0
Interest income (expense), net																	-84.8
Other income (expense), net																	0		0	0
Income before benefit (provision) for income taxes and equity in earnings of investee companies																	-84.8		0	0
Benefit (provision) for income taxes																	0		0	0
Equity in earnings of investee companies, net of tax																	393		0	0
Net income																	308.2		0	0
Cumulative translation adjustments																	-10.7		0	0
Net actuarial gain (loss)																	-3.1		0	0
Deferred tax rate adjustment																	-1.2
Total other comprehensive income (loss), net of tax																	-15		0	0
Total comprehensive income																	293.2		0	0
Guarantor Subsidiaries
Condensed Income Statements, Captions [Line Items]
Billboard																	851		796.6	770.7
Transit and other																	347.8		333.5	327.9
Total revenues																			1,130.10	1,098.60
Operating																	626.1		584.2	577.9
Selling, general and administrative																	192.7		167.7	148.5
Restructuring charges																	9.8			1.8
Acquisition costs																	10.4	[2]
Net (gain) loss on dispositions																	-2.5		-27.5	1.6
Depreciation																	84.5		80.7	80.4
Amortization																	89.9		86.1	85.2
Total expenses																	1,010.90		891.2	895.4
Operating Income (Loss)																	187.9		238.9	203.2
Interest income (expense), net																	-0.2
Other income (expense), net																	0		-0.2	-0.1
Income before benefit (provision) for income taxes and equity in earnings of investee companies																	187.7		238.7	203.1
Benefit (provision) for income taxes																	209.7		-93.3	-87.3
Equity in earnings of investee companies, net of tax																	-89.2		-1.9	-2.4
Net income																	308.2		143.5	113.4
Cumulative translation adjustments																	-10.7		-14.9	11
Net actuarial gain (loss)																	-3.1		5.8	-1.4
Deferred tax rate adjustment																	-1.2
Total other comprehensive income (loss), net of tax																	-15		-9.1	9.6
Total comprehensive income																	293.2		134.4	123
Non-Guarantor Subsidiaries
Condensed Income Statements, Captions [Line Items]
Billboard																	121.1		129.1	142.9
Transit and other																	33.9		34.8	43.1
Total revenues																	155		163.9	186
Operating																	100.4		102.7	122.2
Selling, general and administrative																	30.3		32.1	33.3
Restructuring charges																	0			0.7
Acquisition costs																	0	[2]
Net (gain) loss on dispositions																	0		0.2	0.6
Depreciation																	22.7		23.8	25.5
Amortization																	5.1		5.2	5.7
Total expenses																	158.5		164	188
Operating Income (Loss)																	-3.5		-0.1	-2
Interest income (expense), net																	0.2
Other income (expense), net																	-0.3		-1	-0.9
Income before benefit (provision) for income taxes and equity in earnings of investee companies																	-3.6		-1.1	-2.9
Benefit (provision) for income taxes																	-3.7		-3.3	-1.7
Equity in earnings of investee companies, net of tax																	0.7		0	0
Net income																	-6.6		-4.4	-4.6
Cumulative translation adjustments																	-10.7		-14.9	11
Net actuarial gain (loss)																	-2.9		5.6	-1.3
Deferred tax rate adjustment																	-1.2
Total other comprehensive income (loss), net of tax																	-14.8		-9.3	9.7
Total comprehensive income																	-21.4		-13.7	5.1
Eliminations
Condensed Income Statements, Captions [Line Items]
Billboard																	0		0	0
Transit and other																	0		0	0
Total revenues																	0		0	0
Operating																	0		0	0
Selling, general and administrative																	0		0	0
Restructuring charges																	0			0
Acquisition costs																	0	[2]
Net (gain) loss on dispositions																	0		0	0
Depreciation																	0		0	0
Amortization																	0		0	0
Total expenses																	0		0	0
Operating Income (Loss)																	0		0	0
Interest income (expense), net																	0
Other income (expense), net																	0		0	0
Income before benefit (provision) for income taxes and equity in earnings of investee companies																	0		0	0
Benefit (provision) for income taxes																	0		0	0
Equity in earnings of investee companies, net of tax																	-609.8		4.4	4.6
Net income																	-609.8		4.4	4.6
Cumulative translation adjustments																	32.1		14.9	-11
Net actuarial gain (loss)																	9.1		-5.6	1.3
Deferred tax rate adjustment																	3.6
Total other comprehensive income (loss), net of tax																	44.8		9.3	-9.7
Total comprehensive income																	($565)		$13.70	($5.10)
[1]	In the fourth quarter of 2014, we issued the New Senior Notes (see Note 8. Long-Term Debt) and completed the Acquisition (see Note 12. Acquisition) and also reversed an additional $3.3 million of Deferred income tax liabilities, net, related to our REIT conversion.
[2]	In 2014, restructuring charges (including stock-based compensation of $5.6 million), costs related to the Acquisition and stock-based compensation are classified as Corporate expense.
[3]	During the fourth quarter of 2013, we sold 50% of our transit shelter operations in Los Angeles, and we and the buyer each subsequently contributed our respective 50% interests in these operations to a 50/50 joint venture they own together. This transaction resulted in a gain of $17.5 million.
[4]	During the first quarter of 2013, we exchanged most of our billboards in Salt Lake City for billboards in New Jersey resulting in a gain of $9.8 million.

Condensed_Consolidating_Financ5

Condensed Consolidating Financial Information Condensed Cash Flow Statement (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Condensed Cash Flow Statements, Captions [Line Items]
Net cash provided by operating activities	$262.80	$281.10	$305.90
Capital expenditures	-64.2	-60.9	-48.2
Acquisitions	-735.7	-11.5	-0.4
Investments in investee companies	-3	0	0
Proceeds from dispositions	4.5	28.7	0.5
Net cash used for investing activities	-798.4	-43.7	-48.1
Proceeds from IPO	615	0	0
Proceeds from long-term debt borrowings - term loan and senior notes	1,598	0	0
Proceeds from long-term debt - new senior notes	599.3	0	0
Deferred financing fees	-42.7	0	0
Excess tax benefit from stock-based compensation	0	5.8	2.9
Distribution of net debt and IPO proceeds to CBS	-2,038.80	0	0
Net cash contribution from (distribution to) CBS	49.3	-232.6	-279.7
Payments of Ordinary Dividends	-133.2	0	0
Payment of Special Dividend	-109.5	0	0
Increase Decrease In Intercompany Payables	0
Other	-0.8	-0.2	-0.2
Net cash provided by (used for) financing activities	536.6	-227	-277
Effect of exchange rate changes on cash and cash equivalents	-2.3	-0.8	1.8
Net increase (decrease) in cash and cash equivalents	-1.3	9.6	-17.4
Cash and cash equivalents at beginning of period	29.8	20.2	37.6
Cash and cash equivalents at end of period	28.5	29.8	20.2
Parent Company
Condensed Cash Flow Statements, Captions [Line Items]
Net cash provided by operating activities	-1.3	0	0
Capital expenditures	0	0	0
Acquisitions	0	0	0
Investments in investee companies	0
Proceeds from dispositions	0	0	0
Net cash used for investing activities	0	0	0
Proceeds from IPO	615
Proceeds from long-term debt borrowings - term loan and senior notes	0
Proceeds from long-term debt - new senior notes	0
Deferred financing fees	0
Excess tax benefit from stock-based compensation		0	0
Distribution of net debt and IPO proceeds to CBS	-515
Net cash contribution from (distribution to) CBS	9.5	0	0
Payments of Ordinary Dividends	-133.2
Payment of Special Dividend	-109.5
Increase Decrease In Intercompany Payables	134.5
Other	0	0	0
Net cash provided by (used for) financing activities	1.3	0	0
Effect of exchange rate changes on cash and cash equivalents	0	0	0
Net increase (decrease) in cash and cash equivalents	0	0	0
Cash and cash equivalents at beginning of period	0	0	0
Cash and cash equivalents at end of period	0	0	0
Subsidiary Issuer
Condensed Cash Flow Statements, Captions [Line Items]
Net cash provided by operating activities	-54.8	0	0
Capital expenditures	0	0	0
Acquisitions	0	0	0
Investments in investee companies	0
Proceeds from dispositions	0	0	0
Net cash used for investing activities	0	0	0
Proceeds from IPO	0
Proceeds from long-term debt borrowings - term loan and senior notes	1,598
Proceeds from long-term debt - new senior notes	599.3
Deferred financing fees	-42.7
Excess tax benefit from stock-based compensation		0	0
Distribution of net debt and IPO proceeds to CBS	-1,523.80
Net cash contribution from (distribution to) CBS	0	0	0
Payments of Ordinary Dividends	0
Payment of Special Dividend	0
Increase Decrease In Intercompany Payables	-564.5
Other	0	0	0
Net cash provided by (used for) financing activities	66.3	0	0
Effect of exchange rate changes on cash and cash equivalents	0	0	0
Net increase (decrease) in cash and cash equivalents	11.5	0	0
Cash and cash equivalents at beginning of period	0	0	0
Cash and cash equivalents at end of period	11.5	0	0
Guarantor Subsidiaries
Condensed Cash Flow Statements, Captions [Line Items]
Net cash provided by operating activities	330.6	268.2	277.3
Capital expenditures	-56.8	-54.1	-42.5
Acquisitions	-735.7	-11.5	-0.4
Investments in investee companies	-3
Proceeds from dispositions	4.2	28.6	0.4
Net cash used for investing activities	-791.3	-37	-42.5
Proceeds from IPO	0
Proceeds from long-term debt borrowings - term loan and senior notes	0
Proceeds from long-term debt - new senior notes	0
Deferred financing fees	0
Excess tax benefit from stock-based compensation		5.8	2.9
Distribution of net debt and IPO proceeds to CBS	0
Net cash contribution from (distribution to) CBS	39.8	-244.4	-238.2
Payments of Ordinary Dividends	0
Payment of Special Dividend	0
Increase Decrease In Intercompany Payables	428.4
Other	-0.8	0	0
Net cash provided by (used for) financing activities	467.4	-238.6	-235.3
Effect of exchange rate changes on cash and cash equivalents	0	0	0
Net increase (decrease) in cash and cash equivalents	6.7	-7.4	-0.5
Cash and cash equivalents at beginning of period	2.1	9.5	10
Cash and cash equivalents at end of period	8.8	2.1	9.5
Non-Guarantor Subsidiaries
Condensed Cash Flow Statements, Captions [Line Items]
Net cash provided by operating activities	-11.7	12.9	28.6
Capital expenditures	-7.4	-6.8	-5.7
Acquisitions	0	0	0
Investments in investee companies	0
Proceeds from dispositions	0.3	0.1	0.1
Net cash used for investing activities	-7.1	-6.7	-5.6
Proceeds from IPO	0
Proceeds from long-term debt borrowings - term loan and senior notes	0
Proceeds from long-term debt - new senior notes	0
Deferred financing fees	0
Excess tax benefit from stock-based compensation		0	0
Distribution of net debt and IPO proceeds to CBS	0
Net cash contribution from (distribution to) CBS	0	11.8	-41.5
Payments of Ordinary Dividends	0
Payment of Special Dividend	0
Increase Decrease In Intercompany Payables	1.6
Other	0	-0.2	-0.2
Net cash provided by (used for) financing activities	1.6	11.6	-41.7
Effect of exchange rate changes on cash and cash equivalents	-2.3	-0.8	1.8
Net increase (decrease) in cash and cash equivalents	-19.5	17	-16.9
Cash and cash equivalents at beginning of period	27.7	10.7	27.6
Cash and cash equivalents at end of period	8.2	27.7	10.7
Eliminations
Condensed Cash Flow Statements, Captions [Line Items]
Net cash provided by operating activities	0	0	0
Capital expenditures	0	0	0
Acquisitions	0	0	0
Investments in investee companies	0
Proceeds from dispositions	0	0	0
Net cash used for investing activities	0	0	0
Proceeds from IPO	0
Proceeds from long-term debt borrowings - term loan and senior notes	0
Proceeds from long-term debt - new senior notes	0
Deferred financing fees	0
Excess tax benefit from stock-based compensation		0	0
Distribution of net debt and IPO proceeds to CBS	0
Net cash contribution from (distribution to) CBS	0	0	0
Payments of Ordinary Dividends	0
Payment of Special Dividend	0
Increase Decrease In Intercompany Payables	0
Other	0	0	0
Net cash provided by (used for) financing activities	0	0	0
Effect of exchange rate changes on cash and cash equivalents	0	0	0
Net increase (decrease) in cash and cash equivalents	0	0	0
Cash and cash equivalents at beginning of period	0	0	0
Cash and cash equivalents at end of period	$0	$0	$0

Subsequent_Events_Narrative_De

Subsequent Events - Narrative (Details)	0 Months Ended		2 Months Ended
	Dec. 01, 2014	Jan. 15, 2014	Mar. 06, 2015
Subsequent Event [Line Items]
Stock Issued During Period, Shares, New Issues	74,129	100
Subsequent Event
Subsequent Event [Line Items]
Stock Issued During Period, Shares, New Issues			185,323

Quarterly_Financial_Data_Quart

Quarterly Financial Data - Quarterly Financial Information (Details) (USD $)	3 Months Ended														12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014		Sep. 30, 2014		Jun. 30, 2014		Mar. 31, 2014		Dec. 31, 2013		Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013		Dec. 31, 2014		Dec. 31, 2013	Dec. 31, 2012
Condensed Financial Statements, Captions [Line Items]
Revenues	$395	[1]	$336.50		$334.40		$287.90		$343.90		$338.20	$332.70	$279.20		$1,353.80		$1,294	$1,284.60
Adjusted OIBDA	120.6	[1]	106.9		110.3		75.6		110.2		116.1	113.1	75.4		413.4		414.8	408.4
Restructuring Charges, excluding share-based compensation related charges	-1.5	[2]	-2.7	[2]	0	[2]	0	[2]							-4.2	[2]
Business Combination, Acquisition Related Costs	-9	[1],[2]	-1.4	[2]	0	[2]	0	[2]							-10.4	[2]	0	0
Net gain (loss) on dispositions	1.1		0.5		0		0.9		17.5	[3]	0.1	-0.1	9.8	[4]	2.5		27.3	-2.2
Depreciation	-27.9		-26.7		-26.5		-26.1		-26.2		-26.4	-25.9	-26		-107.2		-104.5	-105.9
Amortization	-27.7		-22.8		-22.6		-21.9		-23.1		-22.6	-22.7	-22.9		-95		-91.3	-90.9
Stock-based compensation	-5.1		-6.2		-2.9		-1.8		-1.7		-2.6	-1.6	-1.6		-16		-7.5	-5.7
Operating Income (Loss)	50.5	[1]	47.6		58.3		26.7		76.7		64.6	62.8	34.7		183.1		238.8	201.2
Net income	27.8	[1]	248.3		22.4		8.4		50		37.2	36.4	19.9		306.9		143.5	113.4
Deferred Tax Benefit Due To REIT Conversion	3.3		232.3												235.6
Percentage of Company's ownership in group of assets sold									50.00%
Percentage of Company's ownership in group of assets contributed to a joint venture									50.00%
United States
Condensed Financial Statements, Captions [Line Items]
Revenues	356.4		296.3		291.1		255		302.5		296.5	285.9	245.2		1,198.80	[5]	1,130.10	1,098.60
Adjusted OIBDA	123.2		106.3		106.4		80.3		106.2		113.6	106.5	80.1		416.2		406.4	385.4
Net gain (loss) on dispositions															2.5		27.5	-1.6
Operating Income (Loss)	75.8	[6]	64.3	[6]	64.2	[6]	40	[6]	81.7		72	65.2	48.2		244.3		267.1	216.4
Incremental Standalone Costs	2.7		2.7		2.1		1.7
International
Condensed Financial Statements, Captions [Line Items]
Revenues	38.6		40.2		43.3		32.9		41.4		41.7	46.8	34		155		163.9	186
Adjusted OIBDA	7.4		6.3		9.5		1.1		9.1		7.9	11.5	0.6		24.3		29.1	30.5
Net gain (loss) on dispositions															0		0.2	-0.6
Operating Income (Loss)	0.3		-0.7		2.6		-5.7		1.8		0.6	4.1	-6.6		-3.5		-0.1	-2
Corporate
Condensed Financial Statements, Captions [Line Items]
Adjusted OIBDA	-10		-5.7		-5.6		-5.8		-5.1		-5.4	-4.9	-5.3		-27.1		-20.7	-7.5
Operating Income (Loss)	-25.6	[7]	-16	[7]	-8.5	[7]	-7.6	[7]	-6.8		-8	-6.5	-6.9		-57.7		-28.2	-13.2
Incremental Standalone Costs	$2.70		$2.50		$3.10		$2.10
[1]	In the fourth quarter of 2014, we issued the New Senior Notes (see Note 8. Long-Term Debt) and completed the Acquisition (see Note 12. Acquisition) and also reversed an additional $3.3 million of Deferred income tax liabilities, net, related to our REIT conversion.
[2]	In 2014, restructuring charges (including stock-based compensation of $5.6 million), costs related to the Acquisition and stock-based compensation are classified as Corporate expense.
[3]	During the fourth quarter of 2013, we sold 50% of our transit shelter operations in Los Angeles, and we and the buyer each subsequently contributed our respective 50% interests in these operations to a 50/50 joint venture they own together. This transaction resulted in a gain of $17.5 million.
[4]	During the first quarter of 2013, we exchanged most of our billboards in Salt Lake City for billboards in New Jersey resulting in a gain of $9.8 million.
[5]	Revenues classifications are based on customers’ locations.
[6]	We incurred incremental U.S. stand-alone costs of $1.7 million during the first quarter of 2014; $2.1 million during the second quarter of 2014, $2.7 million during the third quarter of 2014 and $2.7 million during the fourth quarter of 2014.
[7]	We incurred incremental corporate stand-alone costs of $2.1 million during the first quarter of 2014; $3.1 million during the second quarter of 2014, $2.5 million during the third quarter of 2014 and $2.7 million during the fourth quarter of 2014.

II_Valuation_and_Qualifying_Ac2

II - Valuation and Qualifying Accounts (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014		Dec. 31, 2013	Dec. 31, 2012
Allowance for doubtful accounts:
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	$15.70		$19.30	$22.40
Balance Acquired through Acquisitions	0		0	0
Charged to Costs and Expenses	2.9		0.4	3.1
Charged to Other Accounts(a)	-0.7	[1]	0	0.2	[1]
Deductions	3.7		4	6.4
Balance at End of Period	14.2		15.7	19.3
Valuation allowance on deferred tax assets:
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	10.1		8	7.5
Balance Acquired through Acquisitions	0		0	0
Charged to Costs and Expenses	0.5		3	0.7
Charged to Other Accounts(a)	0		0	0
Deductions	3.7		0.9	0.2
Balance at End of Period	$6.90		$10.10	$8
[1]	Reflects change in allowance related to foreign currency translation adjustments.

III_Schedule_of_Real_Estate_an2

III - Schedule of Real Estate and Accumulated Depreciation (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014		Dec. 31, 2013	Dec. 31, 2012
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	$1,833.70	[1],[2]	$1,750.90	$1,743.70
Accumulated Depreciation	-1,109.40		-1,052.70	-990
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the beginning of the year	1,750.90		1,743.70	1,714.60
Additions for construction of / improvements to structures	136.6		51.6	47.1
Assets sold or written-off	-14.2		-14.9	-32.3
Foreign exchange	-39.6		-29.5	14.3
Balance at the end of the year	1,833.70	[1],[2]	1,750.90	1,743.70
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the beginning of the year	-1,052.70		-990	-911
Depreciation	99.6		97.5	98.8
Foreign exchange	-29.9		-21.1	9.9
Assets sold or written-off	-13		-13.7	-29.7
Balance at the end of the year	-1,109.40		-1,052.70	-990
United States
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
SEC Schedule III, Real Estate, Number of Units, as of date	46,110
Encumbrances	0
Gross carrying amount at the end of the year	1,468.80	[1]
Accumulated Depreciation	-835.2
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	1,468.80	[1]
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of the year	-835.2
Canada
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
SEC Schedule III, Real Estate, Number of Units, as of date	5,984
Encumbrances	0
Gross carrying amount at the end of the year	321.5	[1]
Accumulated Depreciation	-249.7
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	321.5	[1]
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of the year	-249.7
Mexico
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
SEC Schedule III, Real Estate, Number of Units, as of date	4,405
Encumbrances	0
Gross carrying amount at the end of the year	31.1	[1]
Accumulated Depreciation	-18.1
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	31.1	[1]
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of the year	-18.1
Argentina
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
SEC Schedule III, Real Estate, Number of Units, as of date	517
Encumbrances	0
Gross carrying amount at the end of the year	1.5	[1]
Accumulated Depreciation	-0.5
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	1.5	[1]
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of the year	-0.5
Brazil
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
SEC Schedule III, Real Estate, Number of Units, as of date	764
Encumbrances	0
Gross carrying amount at the end of the year	5.3	[1]
Accumulated Depreciation	-1.2
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	5.3	[1]
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of the year	-1.2
Uruguay
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
SEC Schedule III, Real Estate, Number of Units, as of date	149
Encumbrances	0
Gross carrying amount at the end of the year	1.8	[1]
Accumulated Depreciation	-1.4
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	1.8	[1]
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of the year	-1.4
Chile
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
SEC Schedule III, Real Estate, Number of Units, as of date	823
Encumbrances	0
Gross carrying amount at the end of the year	3.7	[1]
Accumulated Depreciation	-3.3
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	3.7	[1]
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of the year	-3.3
Minimum | United States
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Life Used for Depreciation	5 years
Minimum | Canada
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Life Used for Depreciation	5 years
Minimum | Mexico
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Life Used for Depreciation	5 years
Minimum | Argentina
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Life Used for Depreciation	5 years
Minimum | Brazil
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Life Used for Depreciation	5 years
Minimum | Uruguay
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Life Used for Depreciation	5 years
Minimum | Chile
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Life Used for Depreciation	5 years
Maximum | United States
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Life Used for Depreciation	20 years
Maximum | Canada
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Life Used for Depreciation	20 years
Maximum | Mexico
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Life Used for Depreciation	20 years
Maximum | Argentina
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Life Used for Depreciation	20 years
Maximum | Brazil
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Life Used for Depreciation	20 years
Maximum | Uruguay
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Life Used for Depreciation	20 years
Maximum | Chile
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Life Used for Depreciation	20 years
Assets
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Number of assets which exceed concentration risk %	0
Concentration Risk, Percentage	5.00%
Structures Added Prior to 1/1/2014 [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	1,724.30	[1]
Accumulated Depreciation	-1,106.80
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	1,724.30	[1]
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of the year	-1,106.80
Structures Added Prior to 1/1/2014 [Member] | United States
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
SEC Schedule III, Real Estate, Number of Units, as of date	44,235
Gross carrying amount at the end of the year	1,361.10	[1]
Accumulated Depreciation	-832.7
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	1,361.10	[1]
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of the year	-832.7
Structures Added Prior to 1/1/2014 [Member] | Canada
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
SEC Schedule III, Real Estate, Number of Units, as of date	5,955
Gross carrying amount at the end of the year	320.5	[1]
Accumulated Depreciation	-249.7
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	320.5	[1]
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of the year	-249.7
Structures Added Prior to 1/1/2014 [Member] | Mexico
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
SEC Schedule III, Real Estate, Number of Units, as of date	4,397
Gross carrying amount at the end of the year	30.8	[1]
Accumulated Depreciation	-18
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	30.8	[1]
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of the year	-18
Structures Added Prior to 1/1/2014 [Member] | Argentina
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
SEC Schedule III, Real Estate, Number of Units, as of date	494
Gross carrying amount at the end of the year	1.4	[1]
Accumulated Depreciation	-0.5
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	1.4	[1]
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of the year	-0.5
Structures Added Prior to 1/1/2014 [Member] | Brazil
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
SEC Schedule III, Real Estate, Number of Units, as of date	704
Gross carrying amount at the end of the year	5.1	[1]
Accumulated Depreciation	-1.2
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	5.1	[1]
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of the year	-1.2
Structures Added Prior to 1/1/2014 [Member] | Uruguay
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
SEC Schedule III, Real Estate, Number of Units, as of date	149
Gross carrying amount at the end of the year	1.8	[1]
Accumulated Depreciation	-1.4
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	1.8	[1]
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of the year	-1.4
Structures Added Prior to 1/1/2014 [Member] | Chile
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
SEC Schedule III, Real Estate, Number of Units, as of date	820
Gross carrying amount at the end of the year	3.6	[1]
Accumulated Depreciation	-3.3
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	3.6	[1]
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of the year	-3.3
Structures Added Subsequent to 1/1/2014 [Member] | United States
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
SEC Schedule III, Real Estate, Number of Units, as of date	1,875
Structures Added Subsequent to 1/1/2014 [Member] | Canada
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
SEC Schedule III, Real Estate, Number of Units, as of date	29
Structures Added Subsequent to 1/1/2014 [Member] | Mexico
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
SEC Schedule III, Real Estate, Number of Units, as of date	8
Structures Added Subsequent to 1/1/2014 [Member] | Argentina
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
SEC Schedule III, Real Estate, Number of Units, as of date	23
Structures Added Subsequent to 1/1/2014 [Member] | Brazil
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
SEC Schedule III, Real Estate, Number of Units, as of date	60
Structures Added Subsequent to 1/1/2014 [Member] | Uruguay
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
SEC Schedule III, Real Estate, Number of Units, as of date	0
Structures Added Subsequent to 1/1/2014 [Member] | Chile
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
SEC Schedule III, Real Estate, Number of Units, as of date	3
Structures Added Subsequent to 1/1/2014 [Member] | Real Estate [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	109.4	[1]
Accumulated Depreciation	-2.6
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	109.4	[1]
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of the year	-2.6
Structures Added Subsequent to 1/1/2014 [Member] | Real Estate [Member] | United States
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	107.7	[1]
Accumulated Depreciation	-2.5
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	107.7	[1]
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of the year	-2.5
Structures Added Subsequent to 1/1/2014 [Member] | Real Estate [Member] | Canada
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	1	[1]
Accumulated Depreciation	0
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	1	[1]
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of the year	0
Structures Added Subsequent to 1/1/2014 [Member] | Real Estate [Member] | Mexico
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	0.3	[1]
Accumulated Depreciation	-0.1
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	0.3	[1]
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of the year	-0.1
Structures Added Subsequent to 1/1/2014 [Member] | Real Estate [Member] | Argentina
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	0.1	[1]
Accumulated Depreciation	0
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	0.1	[1]
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of the year	0
Structures Added Subsequent to 1/1/2014 [Member] | Real Estate [Member] | Brazil
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	0.2	[1]
Accumulated Depreciation	0
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	0.2	[1]
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of the year	0
Structures Added Subsequent to 1/1/2014 [Member] | Real Estate [Member] | Uruguay
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	0	[1]
Accumulated Depreciation	0
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	0	[1]
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of the year	0
Structures Added Subsequent to 1/1/2014 [Member] | Real Estate [Member] | Chile
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	0.1	[1]
Accumulated Depreciation	0
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	0.1	[1]
SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at the end of the year	0
Advertising Structures
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	1,745.60	[1]
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	1,745.60	[1]
Advertising Structures | United States
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	1,385.20	[1]
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	1,385.20	[1]
Advertising Structures | Canada
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	319	[1]
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	319	[1]
Advertising Structures | Mexico
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	29.1	[1]
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	29.1	[1]
Advertising Structures | Argentina
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	1.5	[1]
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	1.5	[1]
Advertising Structures | Brazil
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	5.3	[1]
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	5.3	[1]
Advertising Structures | Uruguay
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	1.8	[1]
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	1.8	[1]
Advertising Structures | Chile
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	3.7	[1]
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	3.7	[1]
Advertising Structures | Structures Added Prior to 1/1/2014 [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	1,636.20	[1]
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	1,636.20	[1]
Advertising Structures | Structures Added Prior to 1/1/2014 [Member] | United States
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	1,277.50	[1]
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	1,277.50	[1]
Advertising Structures | Structures Added Prior to 1/1/2014 [Member] | Canada
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	318	[1]
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	318	[1]
Advertising Structures | Structures Added Prior to 1/1/2014 [Member] | Mexico
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	28.8	[1]
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	28.8	[1]
Advertising Structures | Structures Added Prior to 1/1/2014 [Member] | Argentina
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	1.4	[1]
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	1.4	[1]
Advertising Structures | Structures Added Prior to 1/1/2014 [Member] | Brazil
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	5.1	[1]
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	5.1	[1]
Advertising Structures | Structures Added Prior to 1/1/2014 [Member] | Uruguay
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	1.8	[1]
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	1.8	[1]
Advertising Structures | Structures Added Prior to 1/1/2014 [Member] | Chile
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	3.6	[1]
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	3.6	[1]
Advertising Structures | Structures Added Subsequent to 1/1/2014 [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	109.4	[1]
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	109.4	[1]
Advertising Structures | Structures Added Subsequent to 1/1/2014 [Member] | United States
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	107.7	[1]
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	107.7	[1]
Advertising Structures | Structures Added Subsequent to 1/1/2014 [Member] | Canada
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	1	[1]
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	1	[1]
Advertising Structures | Structures Added Subsequent to 1/1/2014 [Member] | Mexico
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	0.3	[1]
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	0.3	[1]
Advertising Structures | Structures Added Subsequent to 1/1/2014 [Member] | Argentina
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	0.1	[1]
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	0.1	[1]
Advertising Structures | Structures Added Subsequent to 1/1/2014 [Member] | Brazil
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	0.2	[1]
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	0.2	[1]
Advertising Structures | Structures Added Subsequent to 1/1/2014 [Member] | Uruguay
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	0	[1]
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	0	[1]
Advertising Structures | Structures Added Subsequent to 1/1/2014 [Member] | Chile
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	0.1	[1]
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	0.1	[1]
Land
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	88.1	[1]
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	88.1	[1]
Land | United States
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	83.6	[1]
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	83.6	[1]
Land | Canada
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	2.5	[1]
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	2.5	[1]
Land | Mexico
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	2	[1]
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	2	[1]
Land | Argentina
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	0	[1]
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	0	[1]
Land | Brazil
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	0	[1]
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	0	[1]
Land | Uruguay
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	0	[1]
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	0	[1]
Land | Chile
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	0	[1]
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	0	[1]
Land | Structures Added Prior to 1/1/2014 [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	88.1	[1]
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	88.1	[1]
Land | Structures Added Prior to 1/1/2014 [Member] | United States
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	83.6	[1]
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	83.6	[1]
Land | Structures Added Prior to 1/1/2014 [Member] | Canada
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	2.5	[1]
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	2.5	[1]
Land | Structures Added Prior to 1/1/2014 [Member] | Mexico
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	2	[1]
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	2	[1]
Land | Structures Added Prior to 1/1/2014 [Member] | Argentina
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	0	[1]
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	0	[1]
Land | Structures Added Prior to 1/1/2014 [Member] | Brazil
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	0	[1]
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	0	[1]
Land | Structures Added Prior to 1/1/2014 [Member] | Uruguay
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	0	[1]
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	0	[1]
Land | Structures Added Prior to 1/1/2014 [Member] | Chile
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	0	[1]
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	0	[1]
Land | Structures Added Subsequent to 1/1/2014 [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	0	[1]
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	0	[1]
Land | Structures Added Subsequent to 1/1/2014 [Member] | United States
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	0	[1]
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	0	[1]
Land | Structures Added Subsequent to 1/1/2014 [Member] | Canada
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	0	[1]
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	0	[1]
Land | Structures Added Subsequent to 1/1/2014 [Member] | Mexico
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	0	[1]
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	0	[1]
Land | Structures Added Subsequent to 1/1/2014 [Member] | Argentina
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	0	[1]
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	0	[1]
Land | Structures Added Subsequent to 1/1/2014 [Member] | Brazil
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	0	[1]
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	0	[1]
Land | Structures Added Subsequent to 1/1/2014 [Member] | Uruguay
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	0	[1]
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	0	[1]
Land | Structures Added Subsequent to 1/1/2014 [Member] | Chile
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	0	[1]
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	0	[1]
Initial Acquisition Cost [Member] | Advertising Structures | Structures Added Subsequent to 1/1/2014 [Member]
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	109.4
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	109.4
Initial Acquisition Cost [Member] | Advertising Structures | Structures Added Subsequent to 1/1/2014 [Member] | United States
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	107.7
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	107.7
Initial Acquisition Cost [Member] | Advertising Structures | Structures Added Subsequent to 1/1/2014 [Member] | Canada
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	1
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	1
Initial Acquisition Cost [Member] | Advertising Structures | Structures Added Subsequent to 1/1/2014 [Member] | Mexico
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	0.3
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	0.3
Initial Acquisition Cost [Member] | Advertising Structures | Structures Added Subsequent to 1/1/2014 [Member] | Argentina
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	0.1
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	0.1
Initial Acquisition Cost [Member] | Advertising Structures | Structures Added Subsequent to 1/1/2014 [Member] | Brazil
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	0.2
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	0.2
Initial Acquisition Cost [Member] | Advertising Structures | Structures Added Subsequent to 1/1/2014 [Member] | Uruguay
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	0
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	0
Initial Acquisition Cost [Member] | Advertising Structures | Structures Added Subsequent to 1/1/2014 [Member] | Chile
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Gross carrying amount at the end of the year	0.1
SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at the end of the year	$0.10
[1]	Includes sites under construction.
[2]	single asset exceeded 5% of the total gross carrying amount as of December 31, 2014.