$OUT
OUTFRONT Media Inc. Stock $out

$out Overview Financials Valuation SEC Filings Company Website

2016 Q4 Form 10-K Financial Statement

#000157987718000041 Filed on February 28, 2018

Income Statement

Concept	2016 Q4	2016 Q3	2016 Q2
Revenue	$397.4M	$382.8M	$385.3M
YoY Change	-0.28%	-1.01%	0.16%
Cost Of Revenue	$215.2M	$201.5M	$201.6M
YoY Change	-1.56%	-3.73%	-2.33%
Gross Profit	$182.2M	$181.3M	$183.7M
YoY Change	1.28%	2.2%	3.03%
Gross Profit Margin	45.85%	47.36%	47.68%
Selling, General & Admin	$69.20M	$65.10M	$65.20M
YoY Change	5.17%	-3.13%	2.52%
% of Gross Profit	37.98%	35.91%	35.49%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$24.60M	$26.70M	$28.50M
YoY Change	-13.99%	-5.99%	1.79%
% of Gross Profit	13.5%	14.73%	15.51%
Operating Expenses	$122.1M	$65.10M	$65.20M
YoY Change	-1.29%	-3.13%	2.52%
Operating Profit	$58.20M	$63.50M	$59.00M
YoY Change	-222.53%	20.49%	8.06%
Interest Expense	-$28.20M	-$28.30M	-$28.70M
YoY Change	-78.77%	-2.08%	-0.69%
% of Operating Profit	-48.45%	-44.57%	-48.64%
Other Income/Expense, Net	-$100.0K	$0.00	$200.0K
YoY Change		-100.0%	-300.0%
Pretax Income	$29.90M	$35.20M	$30.50M
YoY Change	-138.98%	50.43%	19.14%
Income Tax	$4.800M	-$1.500M	$3.400M
% Of Pretax Income	16.05%	-4.26%	11.15%
Net Earnings	$26.60M	$38.10M	$28.50M
YoY Change	-135.99%	79.72%	28.38%
Net Earnings / Revenue	6.69%	9.95%	7.4%
Basic Earnings Per Share		$0.28	$0.21
Diluted Earnings Per Share	$192.2K	$0.28	$0.21
COMMON SHARES
Basic Shares Outstanding	138.0M shares	138.0M shares	137.9M shares
Diluted Shares Outstanding		138.5M shares	138.3M shares

Balance Sheet

Concept	2016 Q4	2016 Q3	2016 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments	$65.20M	$73.10M	$61.00M
YoY Change	-35.83%	-31.3%	-10.82%
Cash & Equivalents	$65.20M	$73.10M	$61.00M
Short-Term Investments
Other Short-Term Assets	$7.800M	$7.300M	$9.200M
YoY Change	-37.6%	-49.66%	-35.66%
Inventory
Prepaid Expenses
Receivables	$222.0M	$216.5M	$213.6M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$378.2M	$388.2M	$369.2M
YoY Change	-8.25%	-16.21%	-15.94%
LONG-TERM ASSETS
Property, Plant & Equipment	$665.0M	$670.0M	$681.1M
YoY Change	-5.23%	-8.37%	-8.92%
Goodwill	$2.089B	$2.090B	$2.091B
YoY Change	0.71%	-2.21%	-2.49%
Intangibles
YoY Change
Long-Term Investments	$21.70M	$23.40M	$22.30M
YoY Change	1.88%	-6.02%	-5.51%
Other Assets	$60.60M	$60.80M	$63.10M
YoY Change	7.45%	-32.97%	-31.04%
Total Long-Term Assets	$3.360B	$3.382B	$3.412B
YoY Change	-1.26%	-4.65%	-4.96%
TOTAL ASSETS
Total Short-Term Assets	$378.2M	$388.2M	$369.2M
Total Long-Term Assets	$3.360B	$3.382B	$3.412B
Total Assets	$3.739B	$3.770B	$3.781B
YoY Change	-2.02%	-5.98%	-6.16%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$85.60M	$71.00M	$70.60M
YoY Change	2.39%	-0.28%	6.97%
Accrued Expenses	$131.1M	$126.1M	$109.2M
YoY Change	6.59%	-5.33%	-3.36%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$251.5M	$236.6M	$225.4M
YoY Change	-5.31%	-6.59%	-4.61%
LONG-TERM LIABILITIES
Long-Term Debt	$2.137B	$2.166B	$2.184B
YoY Change	-3.83%	-5.92%	-5.1%
Other Long-Term Liabilities	$74.60M	$73.50M	$71.80M
YoY Change	4.78%	5.0%	3.76%
Total Long-Term Liabilities	$2.211B	$2.239B	$2.256B
YoY Change	-3.57%	-5.6%	-4.84%
TOTAL LIABILITIES
Total Short-Term Liabilities	$251.5M	$236.6M	$225.4M
Total Long-Term Liabilities	$2.211B	$2.239B	$2.256B
Total Liabilities	$2.506B	$2.519B	$2.526B
YoY Change	-3.74%	-5.88%	-5.02%
SHAREHOLDERS EQUITY
Retained Earnings	-$699.5M	-$679.1M	-$670.2M
YoY Change	16.16%	41.24%	47.2%
Common Stock	$1.400M	$1.400M	$1.400M
YoY Change	0.0%	0.0%	0.0%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$1.233B	$1.251B	$1.256B
YoY Change
Total Liabilities & Shareholders Equity	$3.739B	$3.770B	$3.781B
YoY Change	-2.02%	-5.98%	-6.16%

Cashflow Statement

Concept	2016 Q4	2016 Q3	2016 Q2
OPERATING ACTIVITIES
Net Income	$26.60M	$38.10M	$28.50M
YoY Change	-135.99%	79.72%	28.38%
Depreciation, Depletion And Amortization	$24.60M	$26.70M	$28.50M
YoY Change	-13.99%	-5.99%	1.79%
Cash From Operating Activities	$86.40M	$96.00M	$70.90M
YoY Change	-25.96%	-6.16%	3.81%
INVESTING ACTIVITIES
Capital Expenditures	-$17.00M	-$19.00M	-$16.40M
YoY Change	-1.16%	17.28%	10.07%
Acquisitions
YoY Change
Other Investing Activities	$200.0K	$2.500M	$87.60M
YoY Change	100.0%		981.48%
Cash From Investing Activities	-$16.80M	-$16.50M	$71.20M
YoY Change	-1.75%	1.85%	-1147.06%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-77.20M	-67.20M	-124.3M
YoY Change	-21.06%	43.28%	152.64%
NET CHANGE
Cash From Operating Activities	86.40M	96.00M	70.90M
Cash From Investing Activities	-16.80M	-16.50M	71.20M
Cash From Financing Activities	-77.20M	-67.20M	-124.3M
Net Change In Cash	-7.600M	12.30M	17.80M
YoY Change	-522.22%	-68.62%	44.72%
FREE CASH FLOW
Cash From Operating Activities	$86.40M	$96.00M	$70.90M
Capital Expenditures	-$17.00M	-$19.00M	-$16.40M
Free Cash Flow	$103.4M	$115.0M	$87.30M
YoY Change	-22.78%	-2.95%	4.93%

Facts In Submission

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CY2016	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	102400000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-30800000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	136600000	USD
CY2016	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	193300000	USD
CY2015	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-60200000	USD
CY2014Q4	us-gaap	Stockholders Equity StockholdersEquity	1445500000	USD
CY2015	us-gaap	Net Income Loss NetIncomeLoss	-29400000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-30800000	USD
CY2015	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	2000000.0	USD
CY2015	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	15800000	USD
CY2015	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	6900000	USD
CY2015	us-gaap	Stock Issued During Period Value Purchase Of Assets StockIssuedDuringPeriodValuePurchaseOfAssets	12200000	USD
CY2015	us-gaap	Dividends Dividends	195800000	USD
CY2015Q4	us-gaap	Stockholders Equity StockholdersEquity	1212600000	USD
CY2015Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1212600000	USD
CY2016	us-gaap	Net Income Loss NetIncomeLoss	90900000	USD
CY2016	us-gaap	Net Income Loss NetIncomeLoss	90900000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	102400000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	102400000	USD
CY2016	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	18000000.0	USD
CY2016	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	18000000.0	USD
CY2016	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	4700000	USD
CY2016	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	4700000	USD
CY2016	us-gaap	Stock Issued During Period Value Purchase Of Assets StockIssuedDuringPeriodValuePurchaseOfAssets	1900000	USD
CY2016	us-gaap	Stock Issued During Period Value Purchase Of Assets StockIssuedDuringPeriodValuePurchaseOfAssets	1900000	USD
CY2016	us-gaap	Dividends Dividends	188200000	USD
CY2016	us-gaap	Dividends Dividends	188200000	USD
CY2016	us-gaap	Noncontrolling Interest Increase From Subsidiary Equity Issuance NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance	100000	USD
CY2016Q4	us-gaap	Stockholders Equity StockholdersEquity	1232900000	USD
CY2016Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1233000000.0	USD
CY2016Q4	us-gaap	Stockholders Equity StockholdersEquity	1232900000	USD
CY2016Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1233000000.0	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	125800000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	125800000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	10800000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	10800000	USD
CY2017	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	1200000	USD
CY2017	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	1200000	USD
CY2017	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	20500000	USD
CY2017	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	8700000	USD
CY2017	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	8700000	USD
CY2017	us-gaap	Dividends Dividends	201400000	USD
CY2017	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	20500000	USD
CY2017	us-gaap	Dividends Dividends	201400000	USD
CY2017	us-gaap	Noncontrolling Interest Increase From Subsidiary Equity Issuance NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance	800000	USD
CY2017Q4	us-gaap	Stockholders Equity StockholdersEquity	1181100000	USD
CY2017Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1226600000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	125800000	USD
CY2016	us-gaap	Net Income Loss NetIncomeLoss	90900000	USD
CY2015	us-gaap	Net Income Loss NetIncomeLoss	-29400000	USD
CY2017	us-gaap	Depreciation And Amortization DepreciationAndAmortization	189800000	USD
CY2016	us-gaap	Depreciation And Amortization DepreciationAndAmortization	224200000	USD
CY2015	us-gaap	Depreciation And Amortization DepreciationAndAmortization	229100000	USD
CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-4900000	USD
CY2016	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-1800000	USD
CY2015	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-1700000	USD
CY2017	us-gaap	Share Based Compensation ShareBasedCompensation	20500000	USD
CY2016	us-gaap	Share Based Compensation ShareBasedCompensation	18000000.0	USD
CY2015	us-gaap	Share Based Compensation ShareBasedCompensation	15200000	USD
CY2017	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	4400000	USD
CY2016	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	3600000	USD
CY2015	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	2700000	USD
CY2017	us-gaap	Accretion Expense Including Asset Retirement Obligations AccretionExpenseIncludingAssetRetirementObligations	2300000	USD
CY2016	us-gaap	Accretion Expense Including Asset Retirement Obligations AccretionExpenseIncludingAssetRetirementObligations	2400000	USD
CY2015	us-gaap	Accretion Expense Including Asset Retirement Obligations AccretionExpenseIncludingAssetRetirementObligations	2500000	USD
CY2017	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	0	USD
CY2016	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	1300000	USD
CY2015	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	103600000	USD
CY2017	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	14300000	USD
CY2016	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	1900000	USD
CY2015	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	-700000	USD
CY2017	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	4800000	USD
CY2016	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	5300000	USD
CY2015	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	4800000	USD
CY2017	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	7300000	USD
CY2016	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	5000000.0	USD
CY2015	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	7700000	USD
CY2017	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	6100000	USD
CY2016	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	6400000	USD
CY2015	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	6300000	USD
CY2017	out	Cash Paid For Capitalized Sales Commissions CashPaidForCapitalizedSalesCommissions	39200000	USD
CY2016	out	Cash Paid For Capitalized Sales Commissions CashPaidForCapitalizedSalesCommissions	37000000.0	USD
CY2015	out	Cash Paid For Capitalized Sales Commissions CashPaidForCapitalizedSalesCommissions	35900000	USD
CY2017	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	9500000	USD
CY2016	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	11700000	USD
CY2015	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	13300000	USD
CY2017	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	4500000	USD
CY2016	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	500000	USD
CY2015	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	2700000	USD
CY2017	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-31900000	USD
CY2016	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-6800000	USD
CY2015	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	10000000.0	USD
CY2017	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	800000	USD
CY2016	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	0	USD
CY2015	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	3000000.0	USD
CY2017	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	2100000	USD
CY2016	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	6000000.0	USD
CY2015	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	1200000	USD
CY2017	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	700000	USD
CY2016	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	5700000	USD
CY2015	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	1100000	USD
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	249300000	USD
CY2016	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	287100000	USD
CY2015	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	293100000	USD
CY2017	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	70800000	USD
CY2016	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	59400000	USD
CY2015	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	59200000	USD
CY2017	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	70100000	USD
CY2016	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	67900000	USD
CY2015	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	12100000	USD
CY2017	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	5600000	USD
CY2016	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	90600000	USD
CY2015	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	8900000	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-135300000	USD
CY2016	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-36700000	USD
CY2015	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-62400000	USD
CY2017	us-gaap	Proceeds From Issuance Of Other Long Term Debt ProceedsFromIssuanceOfOtherLongTermDebt	0	USD
CY2016	us-gaap	Proceeds From Issuance Of Other Long Term Debt ProceedsFromIssuanceOfOtherLongTermDebt	0	USD
CY2015	us-gaap	Proceeds From Issuance Of Other Long Term Debt ProceedsFromIssuanceOfOtherLongTermDebt	103800000	USD
CY2017	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	8300000	USD
CY2016	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0	USD
CY2015	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0	USD
CY2017	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	0	USD
CY2016	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	90000000.0	USD
CY2015	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	50000000.0	USD
CY2017	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	250000000.0	USD
CY2016	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	35000000.0	USD
CY2015	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	105000000.0	USD
CY2017	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	170000000.0	USD
CY2016	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	35000000.0	USD
CY2015	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	105000000.0	USD
CY2017	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	8500000	USD
CY2016	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	400000	USD
CY2015	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	3300000	USD
CY2017	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	1200000	USD
CY2016	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	0	USD
CY2015	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	2000000.0	USD
CY2017	us-gaap	Payment For Contingent Consideration Liability Financing Activities PaymentForContingentConsiderationLiabilityFinancingActivities	2000000.0	USD
CY2016	us-gaap	Payment For Contingent Consideration Liability Financing Activities PaymentForContingentConsiderationLiabilityFinancingActivities	0	USD
CY2015	us-gaap	Payment For Contingent Consideration Liability Financing Activities PaymentForContingentConsiderationLiabilityFinancingActivities	0	USD
CY2017	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	8500000	USD
CY2016	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	7300000	USD
CY2015	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	4300000	USD
CY2017	us-gaap	Payments Of Dividends PaymentsOfDividends	201800000	USD
CY2016	us-gaap	Payments Of Dividends PaymentsOfDividends	188600000	USD
CY2015	us-gaap	Payments Of Dividends PaymentsOfDividends	196300000	USD
CY2017	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-200000	USD
CY2016	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-200000	USD
CY2015	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-500000	USD
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	-131500000	USD
CY2016	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	-286500000	USD
CY2015	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	-148600000	USD
CY2017	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	600000	USD
CY2016	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-300000	USD
CY2015	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-3300000	USD
CY2017	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-16900000	USD
CY2016	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-36400000	USD
CY2015	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	78800000	USD
CY2016Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	65200000	USD
CY2015Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	101600000	USD
CY2014Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	28500000	USD
CY2017Q4	us-gaap	Disposal Group Including Discontinued Operation Cash And Cash Equivalents DisposalGroupIncludingDiscontinuedOperationCashAndCashEquivalents	0	USD
CY2016Q4	us-gaap	Disposal Group Including Discontinued Operation Cash And Cash Equivalents DisposalGroupIncludingDiscontinuedOperationCashAndCashEquivalents	0	USD
CY2015Q4	us-gaap	Disposal Group Including Discontinued Operation Cash And Cash Equivalents DisposalGroupIncludingDiscontinuedOperationCashAndCashEquivalents	5700000	USD
CY2016	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	1200000	USD
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	48300000	USD
CY2016Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	65200000	USD
CY2015Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	101600000	USD
CY2017	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	6800000	USD
CY2015	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	5800000	USD
CY2017	us-gaap	Interest Paid InterestPaid	111000000.0	USD
CY2016	us-gaap	Interest Paid InterestPaid	111400000	USD
CY2015	us-gaap	Interest Paid InterestPaid	107000000.0	USD
CY2017	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	9500000	USD
CY2016	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	11200000	USD
CY2015	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	7000000.0	USD
CY2017	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	0	USD
CY2016	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	1900000	USD
CY2015	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	12200000	USD
CY2017	us-gaap	Business Combination Consideration Transferred Equity Interests Issued And Issuable BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable	44600000	USD
CY2016	us-gaap	Business Combination Consideration Transferred Equity Interests Issued And Issuable BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable	0	USD
CY2015	us-gaap	Business Combination Consideration Transferred Equity Interests Issued And Issuable BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable	0	USD
CY2017	us-gaap	Noncash Or Part Noncash Acquisition Other Assets Acquired1 NoncashOrPartNoncashAcquisitionOtherAssetsAcquired1	13300000	USD
CY2016	us-gaap	Noncash Or Part Noncash Acquisition Other Assets Acquired1 NoncashOrPartNoncashAcquisitionOtherAssetsAcquired1	0	USD
CY2015	us-gaap	Noncash Or Part Noncash Acquisition Other Assets Acquired1 NoncashOrPartNoncashAcquisitionOtherAssetsAcquired1	0	USD
CY2017	us-gaap	Noncash Or Part Noncash Divestiture Amount Of Consideration Received1 NoncashOrPartNoncashDivestitureAmountOfConsiderationReceived1	13300000	USD
CY2016	us-gaap	Noncash Or Part Noncash Divestiture Amount Of Consideration Received1 NoncashOrPartNoncashDivestitureAmountOfConsiderationReceived1	0	USD
CY2015	us-gaap	Noncash Or Part Noncash Divestiture Amount Of Consideration Received1 NoncashOrPartNoncashDivestitureAmountOfConsiderationReceived1	0	USD
CY2017	out	Taxes Withheld For Stock Based Compensation TaxesWithheldForStockBasedCompensation	0	USD
CY2016	out	Taxes Withheld For Stock Based Compensation TaxesWithheldForStockBasedCompensation	0	USD
CY2015	out	Taxes Withheld For Stock Based Compensation TaxesWithheldForStockBasedCompensation	2600000	USD
CY2017	out	Numberof Largest Marketsin Whichthe Entity Operates Domestic NumberofLargestMarketsinWhichtheEntityOperatesDomestic	25	markets
CY2017	out	Numberof Marketsin Whichthe Entity Operates NumberofMarketsinWhichtheEntityOperates	140	markets
CY2017	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	3	segment
CY2017	us-gaap	Use Of Estimates UseOfEstimates	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.
CY2017	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	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.
CY2017	us-gaap	Description Of New Accounting Pronouncements Not Yet Adopted DescriptionOfNewAccountingPronouncementsNotYetAdopted	Recent Pronouncements<div style="line-height:120%;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;font-style:italic;">Goodwill</span></div><div style="line-height:120%;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">In January 2017, the FASB issued guidance simplifying the test for goodwill impairment by eliminating Step 2 from the goodwill impairment test. Step 2 measures a goodwill impairment loss by comparing the implied fair value of a reporting unit’s goodwill with the carrying amount of that goodwill. An entity should recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value, however, the loss recognized should not exceed the total amount of goodwill allocated to that reporting unit. The guidance is to be applied on a prospective basis and is effective for interim and annual periods beginning after December 15, 2019. Early adoption is permitted for interim and annual impairment tests performed on testing dates after January 1, 2017. We do not expect this guidance to have a material effect on our consolidated financial statements.</span></div><div style="line-height:120%;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;font-style:italic;">Leases</span></div><div style="line-height:120%;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">In February 2016, the FASB issued guidance addressing the recognition, measurement, presentation and disclosure of leases for both lessees and lessors. The new standard requires lessees to apply a dual approach, classifying leases as either finance or operating based on the principle of whether or not the lease is effectively a financed purchase by the lessee. This classification will determine whether lease expense is recognized based on an effective interest method or on a straight line basis over the term of the lease, respectively. A lessee is also required to record a right-of-use asset and a lease liability for all leases with a term of greater than 12 months regardless of their classification. Leases with a term of 12 months or less will be accounted for similar to existing guidance for operating leases today. Lessors will account for leases using an approach that is substantially equivalent to existing guidance for sales-type leases, direct financing leases and operating leases. This guidance is to be applied on a modified retrospective basis and is effective for interim and annual periods beginning after December 15, 2018. Early adoption is permitted for financial statements that have not been previously issued. </span></div><div style="line-height:120%;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">As of </span><span style="font-family:inherit;font-size:10pt;">December 31, 2017</span><span style="font-family:inherit;font-size:10pt;">, we had approximately </span><span style="font-family:inherit;font-size:10pt;"><span>21,500</span></span><span style="font-family:inherit;font-size:10pt;"> lease agreements in the U.S. and approximately </span><span style="font-family:inherit;font-size:10pt;"><span>3,200</span></span><span style="font-family:inherit;font-size:10pt;"> lease agreements in Canada, the majority of which will be classified as operating leases under the new guidance. We are currently evaluating our lease contracts and planning for the implementation of this standard. This standard will require us to recognize a right-of-use asset and lease liability for the present value of minimum lease payments for operating leases with a term greater than 12 months and will have a significant impact on our consolidated financial statements. Our billboard lease revenues will continue to be recognized on a straight-line basis over their respective lease terms. </span></div><div style="line-height:120%;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;font-style:italic;">Revenue from Contracts with Customers</span></div><div style="line-height:120%;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">In May 2014 (updated in August 2015, March 2016, April 2016 and May 2016), the FASB issued principles-based guidance addressing revenue recognition issues. The guidance will be applied to all contracts with customers regardless of industry-specific or transaction-specific fact patterns. The guidance requires that the amount of revenue a company should recognize reflect the consideration it expects to be entitled to in exchange for goods and services. This guidance is effective for the Company beginning in the first quarter of 2018. Our billboard lease revenues are recognized under the lease standard as described above. The revenue recognition guidance will be primarily applicable to our multi-year transit advertising contracts with municipalities in the U.S. and Canada, and marketing and multimedia rights agreements with colleges, universities and other educational institutions. We have assessed the changes to our accounting policies under the new standard and this </span></div>guidance does not have a material effect on our consolidated financial statements. We are in the process of preparing the expanded disclosures required under the new standard in 2018 and will apply the modified retrospective method of adoption.
CY2017Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	2044600000	USD
CY2016Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	1961200000	USD
CY2017Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	1382500000	USD
CY2016Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	1296200000	USD
CY2017Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	662100000	USD
CY2016Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	665000000.0	USD
CY2017	us-gaap	Depreciation Depreciation	89700000	USD
CY2016	us-gaap	Depreciation Depreciation	108900000	USD
CY2015	us-gaap	Depreciation Depreciation	113700000	USD
CY2015Q4	us-gaap	Goodwill Goodwill	2074700000	USD
CY2016	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	1100000	USD
CY2016	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	13900000	USD
CY2016	us-gaap	Goodwill Written Off Related To Sale Of Business Unit GoodwillWrittenOffRelatedToSaleOfBusinessUnit	300000	USD
CY2016Q4	us-gaap	Goodwill Goodwill	2089400000	USD
CY2017	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	4300000	USD
CY2017	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	34300000	USD
CY2017Q4	us-gaap	Goodwill Goodwill	2128000000.0	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	1613800000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	1032900000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	580900000	USD
CY2016Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	1535000000.0	USD
CY2016Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	989700000	USD
CY2016Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	545300000	USD
CY2017	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	100100000	USD
CY2016	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	115300000	USD
CY2015	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	115400000	USD
CY2017	us-gaap	Amortization Of Deferred Leasing Fees AmortizationOfDeferredLeasingFees	40000000.0	USD
CY2016	us-gaap	Amortization Of Deferred Leasing Fees AmortizationOfDeferredLeasingFees	38200000	USD
CY2015	us-gaap	Amortization Of Deferred Leasing Fees AmortizationOfDeferredLeasingFees	36300000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	55000000.0	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	52800000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	48200000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	46600000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	41800000	USD
CY2017	us-gaap	Asset Retirement Obligations Description AssetRetirementObligationsDescription	The obligation is calculated based on the assumption that all of our advertising structures will be removed within the next 50 years
CY2016Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	34100000	USD
CY2015Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	33200000	USD
CY2017	us-gaap	Accretion Expense Including Asset Retirement Obligations AccretionExpenseIncludingAssetRetirementObligations	2300000	USD
CY2016	us-gaap	Accretion Expense Including Asset Retirement Obligations AccretionExpenseIncludingAssetRetirementObligations	2400000	USD
CY2017	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	200000	USD
CY2016	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	200000	USD
CY2017	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	2300000	USD
CY2016	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	1800000	USD
CY2017	us-gaap	Asset Retirement Obligation Foreign Currency Translation Gain Loss AssetRetirementObligationForeignCurrencyTranslationGainLoss	400000	USD
CY2016	us-gaap	Asset Retirement Obligation Foreign Currency Translation Gain Loss AssetRetirementObligationForeignCurrencyTranslationGainLoss	100000	USD
CY2017Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	34700000	USD
CY2016Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	34100000	USD
CY2017Q4	us-gaap	Equity Method Investment Ownership Percentage EquityMethodInvestmentOwnershipPercentage	0.50
CY2017Q4	us-gaap	Equity Method Investments EquityMethodInvestments	19500000	USD
CY2016Q4	us-gaap	Equity Method Investments EquityMethodInvestments	21700000	USD
CY2017	us-gaap	Management Fees Revenue ManagementFeesRevenue	7400000	USD
CY2016	us-gaap	Management Fees Revenue ManagementFeesRevenue	7300000	USD
CY2015	us-gaap	Management Fees Revenue ManagementFeesRevenue	7200000	USD
CY2017Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	80000000.0	USD
CY2016Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	0	USD
CY2017Q4	us-gaap	Unamortized Debt Issuance Expense UnamortizedDebtIssuanceExpense	24700000	USD
CY2016Q4	us-gaap	Unamortized Debt Issuance Expense UnamortizedDebtIssuanceExpense	24700000	USD
CY2017Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	2145300000	USD
CY2016Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	2136800000	USD
CY2017Q4	us-gaap	Debt Longterm And Shortterm Combined Amount DebtLongtermAndShorttermCombinedAmount	2225300000	USD
CY2016Q4	us-gaap	Debt Longterm And Shortterm Combined Amount DebtLongtermAndShorttermCombinedAmount	2136800000	USD
CY2017Q4	us-gaap	Debt Weighted Average Interest Rate DebtWeightedAverageInterestRate	0.048
CY2016Q4	us-gaap	Debt Weighted Average Interest Rate DebtWeightedAverageInterestRate	0.048
CY2017	us-gaap	Debt Instrument Covenant Description DebtInstrumentCovenantDescription	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.
CY2017	out	Consolidated Total Leverage Ratio ConsolidatedTotalLeverageRatio	4.7
CY2017Q4	us-gaap	Deferred Finance Costs Gross DeferredFinanceCostsGross	29400000	USD
CY2014Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-90100000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	-31300000	USD
CY2015	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-500000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-30800000	USD
CY2015Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-120900000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	102000000.0	USD
CY2016	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-400000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	102400000	USD
CY2016Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-18500000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	10400000	USD
CY2017	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-400000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	10800000	USD
CY2017Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-7700000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Reclassification Adjustment From Aoci Realized Upon Sale Or Liquidation Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationBeforeTax	99900000	USD
CY2017	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	300000	USD
CY2015	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	1000000.0	USD
CY2016	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	79690	shares
CY2015	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	442922	shares
CY2017	us-gaap	Temporary Equity Contract Terms TemporaryEquityContractTerms	The Class A equity interests may be redeemed by the holders in exchange for shares of the Company’s common stock on a one-for-one basis (subject to anti-dilution adjustments) or, at the Company’s option, cash equal to the then fair market value of the shares of the Company’s common stock commencing (i) one year after closing, with respect to 55% of the Class A equity interests, and (ii) 18 months after closing, with respect to the remaining 45% of the Class A equity interests. In connection with the Transaction, the Company has agreed to limitations on its ability to sell or otherwise dispose of the assets acquired from All Vision for a period of five years, unless it pays holders of the Class A equity interests in Outfront Canada an amount intended to approximate their resulting tax liability.
CY2017Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	450000000	shares
CY2017Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2017Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	138644917	shares
CY2017Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	50000000	shares
CY2017Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2017Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2017Q4	out	At The Market Equity Offering Program Authorized Amount Outstanding AtTheMarketEquityOfferingProgramAuthorizedAmountOutstanding	300000000.0	USD
CY2015	us-gaap	Restructuring Charges RestructuringCharges	2600000	USD
CY2016	us-gaap	Restructuring Charges RestructuringCharges	2500000	USD
CY2017	us-gaap	Restructuring Charges RestructuringCharges	6400000	USD
CY2017Q4	us-gaap	Restructuring Reserve RestructuringReserve	4400000	USD
CY2017	us-gaap	Finitelived Intangible Assets Acquired1 FinitelivedIntangibleAssetsAcquired1	68000000.0	USD
CY2017Q4	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Deferred Tax Assets Noncurrent BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxAssetsNoncurrent	17000000.0	USD
CY2017Q4	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Current Assets Prepaid Expense And Other Assets BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets	9100000	USD
CY2017	us-gaap	Noncash Or Part Noncash Acquisition Value Of Assets Acquired1 NoncashOrPartNoncashAcquisitionValueOfAssetsAcquired1	114700000	USD
CY2016	us-gaap	Noncash Or Part Noncash Acquisition Value Of Assets Acquired1 NoncashOrPartNoncashAcquisitionValueOfAssetsAcquired1	67900000	USD
CY2015	us-gaap	Noncash Or Part Noncash Acquisition Value Of Assets Acquired1 NoncashOrPartNoncashAcquisitionValueOfAssetsAcquired1	12100000	USD
CY2016Q2	us-gaap	Disposal Group Including Discontinued Operation Consideration DisposalGroupIncludingDiscontinuedOperationConsideration	82000000.0	USD
CY2016	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	1300000	USD
CY2015	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	103600000	USD
CY2015Q2	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	-900000	USD
CY2017	us-gaap	Assets Disposed Of By Method Other Than Sale In Period Of Disposition Gain Loss On Disposition1 AssetsDisposedOfByMethodOtherThanSaleInPeriodOfDispositionGainLossOnDisposition1	14100000	USD
CY2017	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	20500000	USD
CY2016	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	18000000.0	USD
CY2015	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	15200000	USD
CY2017	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	2000000.0	USD
CY2016	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	1900000	USD
CY2015	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	1300000	USD
CY2017	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	18500000	USD
CY2016	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	16100000	USD
CY2015	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	13900000	USD
CY2017Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Share Based Awards Other Than Options EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions	18300000	USD
CY2017	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	1200000	USD
CY2016	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	0	USD
CY2015	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	2000000.0	USD
CY2017	us-gaap	Employee Service Share Based Compensation Tax Benefit From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions	100000	USD
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	2100000	USD
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	0	USD
CY2015	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	1800000	USD
CY2016	us-gaap	Employee Service Share Based Compensation Tax Benefit From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions	0	USD
CY2015	us-gaap	Employee Service Share Based Compensation Tax Benefit From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions	100000	USD
CY2017	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P2Y9M25D
CY2017Q4	us-gaap	Share Price SharePrice	23.20
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	700000	USD
CY2017	out	Defined Benefit Plan Vesting Condition Period DefinedBenefitPlanVestingConditionPeriod	P2Y
CY2017	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P2Y9M25D
CY2017Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	700000	USD
CY2017	out	Numberof Defined Benefit Pension Plans NumberofDefinedBenefitPensionPlans	2	plan
CY2017	out	Defined Benefit Plan Benefit Calculation Condition Period DefinedBenefitPlanBenefitCalculationConditionPeriod	P5Y
CY2016Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	48300000	USD
CY2015Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	44900000	USD
CY2014Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	50900000	USD
CY2017	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	1600000	USD
CY2016	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	1600000	USD
CY2015	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	1400000	USD
CY2017	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	2000000.0	USD
CY2016	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	1900000	USD
CY2015	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	1900000	USD
CY2017	us-gaap	Defined Benefit Plan Actuarial Gain Loss DefinedBenefitPlanActuarialGainLoss	-3700000	USD
CY2016	us-gaap	Defined Benefit Plan Actuarial Gain Loss DefinedBenefitPlanActuarialGainLoss	-200000	USD
CY2015	us-gaap	Defined Benefit Plan Actuarial Gain Loss DefinedBenefitPlanActuarialGainLoss	200000	USD
CY2017	us-gaap	Defined Benefit Plan Benefit Obligation Benefits Paid DefinedBenefitPlanBenefitObligationBenefitsPaid	1400000	USD
CY2016	us-gaap	Defined Benefit Plan Benefit Obligation Benefits Paid DefinedBenefitPlanBenefitObligationBenefitsPaid	1500000	USD
CY2015	us-gaap	Defined Benefit Plan Benefit Obligation Benefits Paid DefinedBenefitPlanBenefitObligationBenefitsPaid	1100000	USD
CY2017	us-gaap	Defined Benefit Plan Foreign Currency Exchange Rate Changes Benefit Obligation DefinedBenefitPlanForeignCurrencyExchangeRateChangesBenefitObligation	3600000	USD
CY2016	us-gaap	Defined Benefit Plan Foreign Currency Exchange Rate Changes Benefit Obligation DefinedBenefitPlanForeignCurrencyExchangeRateChangesBenefitObligation	1200000	USD
CY2015	us-gaap	Defined Benefit Plan Foreign Currency Exchange Rate Changes Benefit Obligation DefinedBenefitPlanForeignCurrencyExchangeRateChangesBenefitObligation	-8000000.0	USD
CY2017Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	57800000	USD
CY2016Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	48300000	USD
CY2015Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	44900000	USD
CY2016Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	43600000	USD
CY2015Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	39700000	USD
CY2017	us-gaap	Defined Benefit Plan Actual Return On Plan Assets DefinedBenefitPlanActualReturnOnPlanAssets	4900000	USD
CY2016	us-gaap	Defined Benefit Plan Actual Return On Plan Assets DefinedBenefitPlanActualReturnOnPlanAssets	2400000	USD
CY2017	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	2000000.0	USD
CY2016	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	2000000.0	USD
CY2017	us-gaap	Defined Benefit Plan Plan Assets Benefits Paid DefinedBenefitPlanPlanAssetsBenefitsPaid	1400000	USD
CY2016	us-gaap	Defined Benefit Plan Plan Assets Benefits Paid DefinedBenefitPlanPlanAssetsBenefitsPaid	1500000	USD
CY2017	us-gaap	Defined Benefit Plan Plan Assets Foreign Currency Translation Gain Loss DefinedBenefitPlanPlanAssetsForeignCurrencyTranslationGainLoss	3200000	USD
CY2016	us-gaap	Defined Benefit Plan Plan Assets Foreign Currency Translation Gain Loss DefinedBenefitPlanPlanAssetsForeignCurrencyTranslationGainLoss	1000000.0	USD
CY2017Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	52300000	USD
CY2016Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	43600000	USD
CY2017Q4	us-gaap	Defined Benefit Plan Funded Status Of Plan DefinedBenefitPlanFundedStatusOfPlan	-5400000	USD
CY2016Q4	us-gaap	Defined Benefit Plan Funded Status Of Plan DefinedBenefitPlanFundedStatusOfPlan	-4700000	USD
CY2017Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	5400000	USD
CY2016Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	4700000	USD
CY2017Q4	us-gaap	Defined Benefit Plan Amounts Recognized In Balance Sheet DefinedBenefitPlanAmountsRecognizedInBalanceSheet	-5400000	USD
CY2016Q4	us-gaap	Defined Benefit Plan Amounts Recognized In Balance Sheet DefinedBenefitPlanAmountsRecognizedInBalanceSheet	-4700000	USD
CY2017Q4	us-gaap	Defined Benefit Plan Accumulated Other Comprehensive Income Net Gains Losses Before Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax	-12900000	USD
CY2016Q4	us-gaap	Defined Benefit Plan Accumulated Other Comprehensive Income Net Gains Losses Before Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax	-11600000	USD
CY2017Q4	out	Defined Benefit Plan Accumulated Other Comprehensive Income Deferred Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeDeferredTax	-3300000	USD
CY2016Q4	out	Defined Benefit Plan Accumulated Other Comprehensive Income Deferred Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeDeferredTax	-3000000.0	USD
CY2017Q4	us-gaap	Defined Benefit Plan Accumulated Benefit Obligation DefinedBenefitPlanAccumulatedBenefitObligation	53900000	USD
CY2016Q4	us-gaap	Defined Benefit Plan Accumulated Benefit Obligation DefinedBenefitPlanAccumulatedBenefitObligation	43800000	USD
CY2017Q4	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Projected Benefit Obligation DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation	57800000	USD
CY2016Q4	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Projected Benefit Obligation DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation	48300000	USD
CY2017Q4	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Accumulated Benefit Obligation DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation	53900000	USD
CY2016Q4	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Accumulated Benefit Obligation DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation	43800000	USD
CY2017Q4	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Fair Value Of Plan Assets DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets	52300000	USD
CY2016Q4	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Fair Value Of Plan Assets DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets	43600000	USD
CY2017	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	1600000	USD
CY2016	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	1600000	USD
CY2015	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	1400000	USD
CY2017	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	2000000.0	USD
CY2016	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	1900000	USD
CY2015	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	1900000	USD
CY2017	us-gaap	Defined Benefit Plan Expected Return On Plan Assets DefinedBenefitPlanExpectedReturnOnPlanAssets	2300000	USD
CY2016	us-gaap	Defined Benefit Plan Expected Return On Plan Assets DefinedBenefitPlanExpectedReturnOnPlanAssets	2100000	USD
CY2015	us-gaap	Defined Benefit Plan Expected Return On Plan Assets DefinedBenefitPlanExpectedReturnOnPlanAssets	2200000	USD
CY2017	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	-600000	USD
CY2016	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	-600000	USD
CY2015	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	-800000	USD
CY2017	us-gaap	Defined Benefit Plan Amortization Of Transition Asset Obligation DefinedBenefitPlanAmortizationOfTransitionAssetObligation	100000	USD
CY2016	us-gaap	Defined Benefit Plan Amortization Of Transition Asset Obligation DefinedBenefitPlanAmortizationOfTransitionAssetObligation	100000	USD
CY2015	us-gaap	Defined Benefit Plan Amortization Of Transition Asset Obligation DefinedBenefitPlanAmortizationOfTransitionAssetObligation	100000	USD
CY2017	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	1800000	USD
CY2016	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	1900000	USD
CY2015	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	1800000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax	1100000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax	600000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	700000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Transition Asset Obligation Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetTransitionAssetObligationBeforeTax	-100000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	-1300000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	300000	USD
CY2017Q4	us-gaap	Defined Benefit Plan Expected Amortization Of Gain Loss Next Fiscal Year DefinedBenefitPlanExpectedAmortizationOfGainLossNextFiscalYear	-700000	USD
CY2017Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	0.035
CY2016Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	0.040
CY2017Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Rate Of Compensation Increase DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease	0.030
CY2016Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Rate Of Compensation Increase DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease	0.030
CY2017	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate	0.040
CY2016	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate	0.040
CY2017	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Long Term Return On Assets DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets	0.051
CY2016	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Long Term Return On Assets DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets	0.051
CY2017	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Rate Of Compensation Increase DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostRateOfCompensationIncrease	0.030
CY2016	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Rate Of Compensation Increase DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostRateOfCompensationIncrease	0.030
CY2017Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	52300000	USD
CY2016Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	43600000	USD
CY2017Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Next Twelve Months DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths	1600000	USD
CY2017Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Two DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo	1700000	USD
CY2017Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Three DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree	1800000	USD
CY2017Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Four DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour	2000000.0	USD
CY2017Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Five DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive	2100000	USD
CY2017Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Five Fiscal Years Thereafter DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter	13300000	USD
CY2017Q4	us-gaap	Defined Benefit Plan Expected Future Employer Contributions Next Fiscal Year DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear	2500000	USD
CY2017	us-gaap	Multiemployer Plan Contributions By Employer MultiemployerPlanContributionsByEmployer	3300000	USD
CY2016	us-gaap	Multiemployer Plan Contributions By Employer MultiemployerPlanContributionsByEmployer	2900000	USD
CY2015	us-gaap	Multiemployer Plan Contributions By Employer MultiemployerPlanContributionsByEmployer	2700000	USD
CY2017	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	4800000	USD
CY2016	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	4500000	USD
CY2015	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	4200000	USD
CY2017	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	6800000	USD
CY2016	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	1200000	USD
CY2015	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	5800000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	139200000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	100900000	USD
CY2015	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	83300000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-14100000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-9900000	USD
CY2015	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-112100000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	125100000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	91000000.0	USD
CY2015	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-28800000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	125100000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	91000000.0	USD
CY2015	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-28800000	USD
CY2017	us-gaap	Income Tax Reconciliation Nondeductible Expense Depreciation IncomeTaxReconciliationNondeductibleExpenseDepreciation	29500000	USD
CY2016	us-gaap	Income Tax Reconciliation Nondeductible Expense Depreciation IncomeTaxReconciliationNondeductibleExpenseDepreciation	50800000	USD
CY2015	us-gaap	Income Tax Reconciliation Nondeductible Expense Depreciation IncomeTaxReconciliationNondeductibleExpenseDepreciation	51700000	USD
CY2017	us-gaap	Income Tax Reconciliation Nondeductible Expense Amortization IncomeTaxReconciliationNondeductibleExpenseAmortization	-1800000	USD
CY2016	us-gaap	Income Tax Reconciliation Nondeductible Expense Amortization IncomeTaxReconciliationNondeductibleExpenseAmortization	12200000	USD
CY2015	us-gaap	Income Tax Reconciliation Nondeductible Expense Amortization IncomeTaxReconciliationNondeductibleExpenseAmortization	7900000	USD
CY2017	us-gaap	Income Tax Reconciliation Repatriation Of Foreign Earnings IncomeTaxReconciliationRepatriationOfForeignEarnings	5600000	USD
CY2016	us-gaap	Income Tax Reconciliation Repatriation Of Foreign Earnings IncomeTaxReconciliationRepatriationOfForeignEarnings	41000000.0	USD
CY2015	us-gaap	Income Tax Reconciliation Repatriation Of Foreign Earnings IncomeTaxReconciliationRepatriationOfForeignEarnings	39000000.0	USD
CY2017	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	-2200000	USD
CY2016	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	4200000	USD
CY2015	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	-3400000	USD
CY2017	us-gaap	Income Tax Reconciliation Disposition Of Assets IncomeTaxReconciliationDispositionOfAssets	-13100000	USD
CY2016	us-gaap	Income Tax Reconciliation Disposition Of Assets IncomeTaxReconciliationDispositionOfAssets	-3500000	USD
CY2015	us-gaap	Income Tax Reconciliation Disposition Of Assets IncomeTaxReconciliationDispositionOfAssets	-2700000	USD
CY2017	us-gaap	Income Tax Reconciliation Deductions Other IncomeTaxReconciliationDeductionsOther	5700000	USD
CY2016	us-gaap	Income Tax Reconciliation Deductions Other IncomeTaxReconciliationDeductionsOther	6000000.0	USD
CY2015	us-gaap	Income Tax Reconciliation Deductions Other IncomeTaxReconciliationDeductionsOther	5600000	USD
CY2017	out	Effective Income Tax Rate Reconciliation Other Bookto Tax Differences EffectiveIncomeTaxRateReconciliationOtherBooktoTaxDifferences	-200000	USD
CY2016	out	Effective Income Tax Rate Reconciliation Other Bookto Tax Differences EffectiveIncomeTaxRateReconciliationOtherBooktoTaxDifferences	6400000	USD
CY2015	out	Effective Income Tax Rate Reconciliation Other Bookto Tax Differences EffectiveIncomeTaxRateReconciliationOtherBooktoTaxDifferences	3100000	USD
CY2017	out	Reit Taxable Income REITTaxableIncome	146200000	USD
CY2016	out	Reit Taxable Income REITTaxableIncome	213500000	USD
CY2015	out	Reit Taxable Income REITTaxableIncome	181100000	USD
CY2017	us-gaap	Foreign Earnings Repatriated ForeignEarningsRepatriated	12600000	USD
CY2017	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	6900000	USD
CY2016	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	4000000.0	USD
CY2015	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	300000	USD
CY2017	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	2200000	USD
CY2016	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	1500000	USD
CY2015	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	900000	USD
CY2017	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	-100000	USD
CY2016	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	1700000	USD
CY2015	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	5900000	USD
CY2016	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	200000	USD
CY2015	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	0	USD
CY2017	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-7200000	USD
CY2016	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-2700000	USD
CY2017	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	9000000.0	USD
CY2016	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	7200000	USD
CY2015	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	7100000	USD
CY2017	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	2200000	USD
CY2016	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	700000	USD
CY2015	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	500000	USD
CY2017	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	100000	USD
CY2015	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-2200000	USD
CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-4900000	USD
CY2016	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-1800000	USD
CY2015	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-1700000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	4100000	USD
CY2016	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	5400000	USD
CY2015	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	5400000	USD
CY2015	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	103600000	USD
CY2017	out	Effective Income Tax Rate Reconciliation Percent Excluding Non Cash Benefit Resulting From Reit Conversion And Foreign Exchange Loss EffectiveIncomeTaxRateReconciliationPercentExcludingNonCashBenefitResultingFromREITConversionAndForeignExchangeLoss	0.033
CY2016	out	Effective Income Tax Rate Reconciliation Percent Excluding Non Cash Benefit Resulting From Reit Conversion And Foreign Exchange Loss EffectiveIncomeTaxRateReconciliationPercentExcludingNonCashBenefitResultingFromREITConversionAndForeignExchangeLoss	0.059
CY2015	out	Effective Income Tax Rate Reconciliation Percent Excluding Non Cash Benefit Resulting From Reit Conversion And Foreign Exchange Loss EffectiveIncomeTaxRateReconciliationPercentExcludingNonCashBenefitResultingFromREITConversionAndForeignExchangeLoss	0.072
CY2017	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	43800000	USD
CY2016	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	31900000	USD
CY2015	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-10100000	USD
CY2017	us-gaap	Income Tax Reconciliation Nondeductible Expense Impairment Losses IncomeTaxReconciliationNondeductibleExpenseImpairmentLosses	0	USD
CY2016	us-gaap	Income Tax Reconciliation Nondeductible Expense Impairment Losses IncomeTaxReconciliationNondeductibleExpenseImpairmentLosses	0	USD
CY2015	us-gaap	Income Tax Reconciliation Nondeductible Expense Impairment Losses IncomeTaxReconciliationNondeductibleExpenseImpairmentLosses	36300000	USD
CY2017	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-42900000	USD
CY2016	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-33800000	USD
CY2015	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-28000000.0	USD
CY2017	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	1600000	USD
CY2016	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	1600000	USD
CY2015	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	1800000	USD
CY2017	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-2400000	USD
CY2016	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	2400000	USD
CY2015	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	7300000	USD
CY2017	us-gaap	Income Tax Reconciliation Prior Year Income Taxes IncomeTaxReconciliationPriorYearIncomeTaxes	0	USD
CY2016	us-gaap	Income Tax Reconciliation Prior Year Income Taxes IncomeTaxReconciliationPriorYearIncomeTaxes	2900000	USD
CY2015	us-gaap	Income Tax Reconciliation Prior Year Income Taxes IncomeTaxReconciliationPriorYearIncomeTaxes	-2100000	USD
CY2017	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	2100000	USD
CY2016	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	0	USD
CY2015	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	0	USD
CY2017	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	900000	USD
CY2016	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	0	USD
CY2015	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	0	USD
CY2017	us-gaap	Income Tax Reconciliation Nondeductible Expense Other IncomeTaxReconciliationNondeductibleExpenseOther	1000000.0	USD
CY2016	us-gaap	Income Tax Reconciliation Nondeductible Expense Other IncomeTaxReconciliationNondeductibleExpenseOther	400000	USD
CY2015	us-gaap	Income Tax Reconciliation Nondeductible Expense Other IncomeTaxReconciliationNondeductibleExpenseOther	200000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	4100000	USD
CY2016	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	5400000	USD
CY2015	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	5400000	USD
CY2017	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals	900000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals	600000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Postretirement Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits	3800000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Postretirement Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits	5000000.0	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards General Business DeferredTaxAssetsTaxCreditCarryforwardsGeneralBusiness	2200000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards General Business DeferredTaxAssetsTaxCreditCarryforwardsGeneralBusiness	1100000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	6900000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	6700000	USD
CY2017Q4	out	Deferred Tax Liabilities Property Equipmentand Intangible Assets DeferredTaxLiabilitiesPropertyEquipmentandIntangibleAssets	22400000	USD
CY2016Q4	out	Deferred Tax Liabilities Property Equipmentand Intangible Assets DeferredTaxLiabilitiesPropertyEquipmentandIntangibleAssets	8800000	USD
CY2017Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	22400000	USD
CY2016Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	8800000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	15500000	USD
CY2016Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	2100000	USD
CY2017Q4	us-gaap	Operating Loss Carryforwards OperatingLossCarryforwards	8300000	USD
CY2017Q4	us-gaap	Undistributed Earnings Of Foreign Subsidiaries UndistributedEarningsOfForeignSubsidiaries	4100000	USD
CY2016Q4	us-gaap	Undistributed Earnings Of Foreign Subsidiaries UndistributedEarningsOfForeignSubsidiaries	25000000.0	USD
CY2014Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	1200000	USD
CY2015	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	200000	USD
CY2015	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	600000	USD
CY2015Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	800000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	100000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	300000	USD
CY2016Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	600000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	200000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	200000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	600000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	600000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	300000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	125800000	USD
CY2016	us-gaap	Net Income Loss NetIncomeLoss	90900000	USD
CY2015	us-gaap	Net Income Loss NetIncomeLoss	-29400000	USD
CY2017	out	Net Income Available To Common Stockholders Basicand Diluted NetIncomeAvailableToCommonStockholdersBasicandDiluted	124400000	USD
CY2016	out	Net Income Available To Common Stockholders Basicand Diluted NetIncomeAvailableToCommonStockholdersBasicandDiluted	90900000	USD
CY2015	out	Net Income Available To Common Stockholders Basicand Diluted NetIncomeAvailableToCommonStockholdersBasicandDiluted	-29400000	USD
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	138500000	shares
CY2016	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	137900000	shares
CY2015	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	137300000	shares
CY2017	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	400000	shares
CY2016	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	500000	shares
CY2015	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0	shares
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	138900000	shares
CY2016	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	138400000	shares
CY2015	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	137300000	shares
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	131000000.0	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	129700000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	114500000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	104700000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	93800000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	505200000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	1078900000	USD
CY2017	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	377700000	USD
CY2016	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	372100000	USD
CY2015	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	376400000	USD
CY2017	us-gaap	Operating Leases Rent Expense Contingent Rentals OperatingLeasesRentExpenseContingentRentals	84700000	USD
CY2016	us-gaap	Operating Leases Rent Expense Contingent Rentals OperatingLeasesRentExpenseContingentRentals	88100000	USD
CY2015	us-gaap	Operating Leases Rent Expense Contingent Rentals OperatingLeasesRentExpenseContingentRentals	87500000	USD
CY2017	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	3	segment
CY2017	us-gaap	Revenues Revenues	1520500000	USD
CY2016	us-gaap	Revenues Revenues	1513900000	USD
CY2015	us-gaap	Revenues Revenues	1513800000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	125800000	USD
CY2016	us-gaap	Net Income Loss NetIncomeLoss	90900000	USD
CY2015	us-gaap	Net Income Loss NetIncomeLoss	-29400000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	4100000	USD
CY2016	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	5400000	USD
CY2015	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	5400000	USD
CY2015	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	4800000	USD
CY2017	us-gaap	Interest Expense InterestExpense	116900000	USD
CY2016	us-gaap	Interest Expense InterestExpense	113800000	USD
CY2017	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	4800000	USD
CY2016	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	5300000	USD
CY2015	us-gaap	Interest Expense InterestExpense	114800000	USD
CY2017	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	300000	USD
CY2016	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-100000	USD
CY2015	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-400000	USD
CY2017	us-gaap	Operating Income Loss OperatingIncomeLoss	241700000	USD
CY2016	us-gaap	Operating Income Loss OperatingIncomeLoss	204900000	USD
CY2015	us-gaap	Operating Income Loss OperatingIncomeLoss	86400000	USD
CY2017	us-gaap	Restructuring Charges RestructuringCharges	6400000	USD
CY2016	us-gaap	Restructuring Charges RestructuringCharges	2500000	USD
CY2015	us-gaap	Restructuring Charges RestructuringCharges	2600000	USD
CY2017	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	0	USD
CY2016	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	1300000	USD
CY2015	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	103600000	USD
CY2017	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	14300000	USD
CY2016	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	1900000	USD
CY2015	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	-700000	USD
CY2017	us-gaap	Depreciation And Amortization DepreciationAndAmortization	189800000	USD
CY2016	us-gaap	Depreciation And Amortization DepreciationAndAmortization	224200000	USD
CY2015	us-gaap	Depreciation And Amortization DepreciationAndAmortization	229100000	USD
CY2017	us-gaap	Share Based Compensation ShareBasedCompensation	20500000	USD
CY2016	us-gaap	Share Based Compensation ShareBasedCompensation	18000000.0	USD
CY2015	us-gaap	Share Based Compensation ShareBasedCompensation	15200000	USD
CY2017	out	Segment Operating Measure SegmentOperatingMeasure	444100000	USD
CY2016	out	Segment Operating Measure SegmentOperatingMeasure	449000000.0	USD
CY2015	out	Segment Operating Measure SegmentOperatingMeasure	437600000	USD
CY2017	out	Segment Operating Measure SegmentOperatingMeasure	444100000	USD
CY2016	out	Segment Operating Measure SegmentOperatingMeasure	449000000.0	USD
CY2015	out	Segment Operating Measure SegmentOperatingMeasure	437600000	USD
CY2017	us-gaap	Operating Income Loss OperatingIncomeLoss	241700000	USD
CY2016	us-gaap	Operating Income Loss OperatingIncomeLoss	204900000	USD
CY2015	us-gaap	Operating Income Loss OperatingIncomeLoss	86400000	USD
CY2017	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	14300000	USD
CY2016	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	1900000	USD
CY2015	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	-700000	USD
CY2017	us-gaap	Depreciation And Amortization DepreciationAndAmortization	189800000	USD
CY2016	us-gaap	Depreciation And Amortization DepreciationAndAmortization	224200000	USD
CY2015	us-gaap	Depreciation And Amortization DepreciationAndAmortization	229100000	USD
CY2017	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	70800000	USD
CY2016	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	59400000	USD
CY2015	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	59200000	USD
CY2017Q4	us-gaap	Assets Assets	3808200000	USD
CY2016Q4	us-gaap	Assets Assets	3738500000	USD
CY2015Q4	us-gaap	Assets Assets	3815500000	USD
CY2017	us-gaap	Revenues Revenues	1520500000	USD
CY2016	us-gaap	Revenues Revenues	1513900000	USD
CY2015	us-gaap	Revenues Revenues	1513800000	USD
CY2017Q4	us-gaap	Noncurrent Assets NoncurrentAssets	3405500000	USD
CY2016Q4	us-gaap	Noncurrent Assets NoncurrentAssets	3328900000	USD
CY2015Q4	us-gaap	Noncurrent Assets NoncurrentAssets	3373300000	USD
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	48300000	USD
CY2017Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	231100000	USD
CY2017Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	96600000	USD
CY2017Q4	us-gaap	Assets Current AssetsCurrent	376000000.0	USD
CY2017Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	662100000	USD
CY2017Q4	us-gaap	Goodwill Goodwill	2128000000.0	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	580900000	USD
CY2017Q4	out	Investments In Consolidated Subsidiaries InvestmentsInConsolidatedSubsidiaries	0	USD
CY2017Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	61200000	USD
CY2017Q4	out	Intercompany Receivables IntercompanyReceivables	0	USD
CY2017Q4	us-gaap	Assets Assets	3808200000	USD
CY2017Q4	us-gaap	Liabilities Current LiabilitiesCurrent	299600000	USD
CY2017Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	2145300000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	19600000	USD
CY2017Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	34700000	USD
CY2017Q4	out	Deficit In Excess Of Investment In Subsidiaries DeficitInExcessOfInvestmentInSubsidiaries	0	USD
CY2017Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	82400000	USD
CY2017Q4	out	Intercompany Payables IntercompanyPayables	0	USD
CY2017Q4	us-gaap	Liabilities Liabilities	2581600000	USD
CY2017Q4	us-gaap	Stockholders Equity StockholdersEquity	1181100000	USD
CY2017Q4	us-gaap	Minority Interest MinorityInterest	45500000	USD
CY2017Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1226600000	USD
CY2017Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	3808200000	USD
CY2016Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	65200000	USD
CY2016Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	222000000.0	USD
CY2016Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	91000000.0	USD
CY2016Q4	us-gaap	Assets Current AssetsCurrent	378200000	USD
CY2016Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	665000000.0	USD
CY2016Q4	us-gaap	Goodwill Goodwill	2089400000	USD
CY2016Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	545300000	USD
CY2016Q4	out	Investments In Consolidated Subsidiaries InvestmentsInConsolidatedSubsidiaries	0	USD
CY2016Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	60600000	USD
CY2016Q4	out	Intercompany Receivables IntercompanyReceivables	0	USD
CY2016Q4	us-gaap	Assets Assets	3738500000	USD
CY2016Q4	us-gaap	Liabilities Current LiabilitiesCurrent	251500000	USD
CY2016Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	2136800000	USD
CY2016Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	8500000	USD
CY2016Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	34100000	USD
CY2016Q4	out	Deficit In Excess Of Investment In Subsidiaries DeficitInExcessOfInvestmentInSubsidiaries	0	USD
CY2016Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	74600000	USD
CY2016Q4	out	Intercompany Payables IntercompanyPayables	0	USD
CY2016Q4	us-gaap	Liabilities Liabilities	2505500000	USD
CY2016Q4	us-gaap	Stockholders Equity StockholdersEquity	1232900000	USD
CY2016Q4	us-gaap	Minority Interest MinorityInterest	100000	USD
CY2016Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1233000000.0	USD
CY2016Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	3738500000	USD
CY2017	out	Billboard Revenue BillboardRevenue	1059000000.0	USD
CY2017	out	Transitand Other Revenue TransitandOtherRevenue	461500000	USD
CY2017	us-gaap	Revenues Revenues	1520500000	USD
CY2017	us-gaap	Direct Operating Costs DirectOperatingCosts	835200000	USD
CY2017	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	261700000	USD
CY2017	us-gaap	Restructuring Charges RestructuringCharges	6400000	USD
CY2017	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	14300000	USD
CY2017	us-gaap	Depreciation Depreciation	89700000	USD
CY2017	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	100100000	USD
CY2017	us-gaap	Costs And Expenses CostsAndExpenses	1278800000	USD
CY2017	us-gaap	Operating Income Loss OperatingIncomeLoss	241700000	USD
CY2017	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	-116900000	USD
CY2017	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	300000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	125100000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	4100000	USD
CY2017	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	4800000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	125800000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	125800000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	10800000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	136600000	USD
CY2016	out	Billboard Revenue BillboardRevenue	1071000000.0	USD
CY2016	out	Transitand Other Revenue TransitandOtherRevenue	442900000	USD
CY2016	us-gaap	Revenues Revenues	1513900000	USD
CY2016	us-gaap	Direct Operating Costs DirectOperatingCosts	818100000	USD
CY2016	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	264800000	USD
CY2016	us-gaap	Restructuring Charges RestructuringCharges	2500000	USD
CY2016	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	1300000	USD
CY2016	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	1900000	USD
CY2016	us-gaap	Depreciation Depreciation	108900000	USD
CY2016	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	115300000	USD
CY2016	us-gaap	Costs And Expenses CostsAndExpenses	1309000000.0	USD
CY2016	us-gaap	Operating Income Loss OperatingIncomeLoss	204900000	USD
CY2016	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	-113800000	USD
CY2016	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-100000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	91000000.0	USD
CY2016	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	5400000	USD
CY2016	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	5300000	USD
CY2016	us-gaap	Net Income Loss NetIncomeLoss	90900000	USD
CY2016	us-gaap	Net Income Loss NetIncomeLoss	90900000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	102400000	USD
CY2016	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	193300000	USD
CY2015	out	Billboard Revenue BillboardRevenue	1084300000	USD
CY2015	out	Transitand Other Revenue TransitandOtherRevenue	429500000	USD
CY2015	us-gaap	Revenues Revenues	1513800000	USD
CY2015	us-gaap	Direct Operating Costs DirectOperatingCosts	833100000	USD
CY2015	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	258300000	USD
CY2015	us-gaap	Restructuring Charges RestructuringCharges	2600000	USD
CY2015	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	103600000	USD
CY2015	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	-700000	USD
CY2015	us-gaap	Depreciation Depreciation	113700000	USD
CY2015	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	115400000	USD
CY2015	us-gaap	Costs And Expenses CostsAndExpenses	1427400000	USD
CY2015	us-gaap	Operating Income Loss OperatingIncomeLoss	86400000	USD
CY2015	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	-114800000	USD
CY2015	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-400000	USD
CY2015	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-28800000	USD
CY2015	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	5400000	USD
CY2015	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	4800000	USD
CY2015	us-gaap	Net Income Loss NetIncomeLoss	-29400000	USD
CY2015	us-gaap	Net Income Loss NetIncomeLoss	-29400000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-30800000	USD
CY2015	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-60200000	USD
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	249300000	USD
CY2017	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	70800000	USD
CY2017	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	70100000	USD
CY2017	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	5600000	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-135300000	USD
CY2017	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	8300000	USD
CY2017	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	250000000.0	USD
CY2017	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	170000000.0	USD
CY2017	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	8500000	USD
CY2017	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	1200000	USD
CY2017	us-gaap	Payment For Contingent Consideration Liability Financing Activities PaymentForContingentConsiderationLiabilityFinancingActivities	2000000.0	USD
CY2017	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	8500000	USD
CY2017	us-gaap	Payments Of Dividends PaymentsOfDividends	201800000	USD
CY2017	out	Increase Decrease In Intercompany Payables IncreaseDecreaseInIntercompanyPayables	0	USD
CY2017	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-200000	USD
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	-131500000	USD
CY2017	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	600000	USD
CY2017	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-16900000	USD
CY2016Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	65200000	USD
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	48300000	USD
CY2016	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	287100000	USD
CY2016	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	59400000	USD
CY2016	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	67900000	USD
CY2016	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	90600000	USD
CY2016	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-36700000	USD
CY2016	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	90000000.0	USD
CY2016	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	35000000.0	USD
CY2016	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	35000000.0	USD
CY2016	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	400000	USD
CY2016	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	7300000	USD
CY2016	us-gaap	Payments Of Dividends PaymentsOfDividends	188600000	USD
CY2016	out	Increase Decrease In Intercompany Payables IncreaseDecreaseInIntercompanyPayables	0	USD
CY2016	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-200000	USD
CY2016	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	-286500000	USD
CY2016	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-300000	USD
CY2016	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-36400000	USD
CY2015Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	101600000	USD
CY2016Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	65200000	USD
CY2015	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	293100000	USD
CY2015	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	59200000	USD
CY2015	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	12100000	USD
CY2015	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	8900000	USD
CY2015	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-62400000	USD
CY2015	us-gaap	Proceeds From Issuance Of Other Long Term Debt ProceedsFromIssuanceOfOtherLongTermDebt	103800000	USD
CY2015	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	50000000.0	USD
CY2015	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	105000000.0	USD
CY2015	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	105000000.0	USD
CY2015	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	3300000	USD
CY2015	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	2000000.0	USD
CY2015	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	4300000	USD
CY2015	us-gaap	Payments Of Dividends PaymentsOfDividends	196300000	USD
CY2015	out	Increase Decrease In Intercompany Payables IncreaseDecreaseInIntercompanyPayables	0	USD
CY2015	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-500000	USD
CY2015	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	-148600000	USD
CY2015	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-3300000	USD
CY2015	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	78800000	USD
CY2014Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	28500000	USD
CY2015Q4	us-gaap	Disposal Group Including Discontinued Operation Cash And Cash Equivalents DisposalGroupIncludingDiscontinuedOperationCashAndCashEquivalents	5700000	USD
CY2015Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	101600000	USD
CY2017Q1	out	Segment Operating Measure SegmentOperatingMeasure	80200000	USD
CY2017Q2	out	Segment Operating Measure SegmentOperatingMeasure	122000000.0	USD
CY2017Q3	out	Segment Operating Measure SegmentOperatingMeasure	120800000	USD
CY2017Q1	us-gaap	Revenues Revenues	330600000	USD
CY2017Q2	us-gaap	Revenues Revenues	396200000	USD
CY2017Q3	us-gaap	Revenues Revenues	392400000	USD
CY2017Q4	us-gaap	Revenues Revenues	401300000	USD
CY2017	us-gaap	Revenues Revenues	1520500000	USD
CY2017Q4	out	Segment Operating Measure SegmentOperatingMeasure	121100000	USD
CY2017	out	Segment Operating Measure SegmentOperatingMeasure	444100000	USD
CY2017Q1	out	Restructuring Chargesexcludingsharebasedcompensationrelatedcharges RestructuringChargesexcludingsharebasedcompensationrelatedcharges	1800000	USD
CY2017Q2	out	Restructuring Chargesexcludingsharebasedcompensationrelatedcharges RestructuringChargesexcludingsharebasedcompensationrelatedcharges	2900000	USD
CY2017Q3	out	Restructuring Chargesexcludingsharebasedcompensationrelatedcharges RestructuringChargesexcludingsharebasedcompensationrelatedcharges	1600000	USD
CY2017Q4	out	Restructuring Chargesexcludingsharebasedcompensationrelatedcharges RestructuringChargesexcludingsharebasedcompensationrelatedcharges	100000	USD
CY2017	out	Restructuring Chargesexcludingsharebasedcompensationrelatedcharges RestructuringChargesexcludingsharebasedcompensationrelatedcharges	6400000	USD
CY2017Q1	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	-400000	USD
CY2017Q2	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	-100000	USD
CY2017Q3	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	14100000	USD
CY2017Q4	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	700000	USD
CY2017	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	14300000	USD
CY2017Q1	us-gaap	Depreciation Depreciation	22900000	USD
CY2017Q2	us-gaap	Depreciation Depreciation	23100000	USD
CY2017Q3	us-gaap	Depreciation Depreciation	22300000	USD
CY2017Q4	us-gaap	Depreciation Depreciation	21400000	USD
CY2017	us-gaap	Depreciation Depreciation	89700000	USD
CY2017Q1	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	23700000	USD
CY2017Q2	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	25400000	USD
CY2017Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	25500000	USD
CY2017Q4	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	25500000	USD
CY2017	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	100100000	USD
CY2017Q1	us-gaap	Share Based Compensation ShareBasedCompensation	5400000	USD
CY2017Q2	us-gaap	Share Based Compensation ShareBasedCompensation	5500000	USD
CY2017Q3	us-gaap	Share Based Compensation ShareBasedCompensation	5200000	USD
CY2017Q4	us-gaap	Share Based Compensation ShareBasedCompensation	4400000	USD
CY2017	us-gaap	Share Based Compensation ShareBasedCompensation	20500000	USD
CY2017Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	26000000.0	USD
CY2017Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	65000000.0	USD
CY2017Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	80300000	USD
CY2017Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	70400000	USD
CY2017	us-gaap	Operating Income Loss OperatingIncomeLoss	241700000	USD
CY2017Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	26000000.0	USD
CY2017Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	65000000.0	USD
CY2017Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	80300000	USD
CY2017Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	70400000	USD
CY2017	us-gaap	Operating Income Loss OperatingIncomeLoss	241700000	USD
CY2017Q1	us-gaap	Net Income Loss NetIncomeLoss	2500000	USD
CY2017Q2	us-gaap	Net Income Loss NetIncomeLoss	37100000	USD
CY2017Q3	us-gaap	Net Income Loss NetIncomeLoss	50700000	USD
CY2017Q4	us-gaap	Net Income Loss NetIncomeLoss	35500000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	125800000	USD
CY2016Q1	us-gaap	Revenues Revenues	348400000	USD
CY2016Q2	us-gaap	Revenues Revenues	385300000	USD
CY2016Q3	us-gaap	Revenues Revenues	382800000	USD
CY2016Q4	us-gaap	Revenues Revenues	397400000	USD
CY2016	us-gaap	Revenues Revenues	1513900000	USD
CY2016Q1	out	Segment Operating Measure SegmentOperatingMeasure	88100000	USD
CY2016Q2	out	Segment Operating Measure SegmentOperatingMeasure	123000000.0	USD
CY2016Q3	out	Segment Operating Measure SegmentOperatingMeasure	120700000	USD
CY2016Q4	out	Segment Operating Measure SegmentOperatingMeasure	117200000	USD
CY2016	out	Segment Operating Measure SegmentOperatingMeasure	449000000.0	USD
CY2016Q1	out	Restructuring Chargesexcludingsharebasedcompensationrelatedcharges RestructuringChargesexcludingsharebasedcompensationrelatedcharges	0	USD
CY2016Q2	out	Restructuring Chargesexcludingsharebasedcompensationrelatedcharges RestructuringChargesexcludingsharebasedcompensationrelatedcharges	400000	USD
CY2016Q3	out	Restructuring Chargesexcludingsharebasedcompensationrelatedcharges RestructuringChargesexcludingsharebasedcompensationrelatedcharges	0	USD
CY2016Q4	out	Restructuring Chargesexcludingsharebasedcompensationrelatedcharges RestructuringChargesexcludingsharebasedcompensationrelatedcharges	2100000	USD
CY2016	out	Restructuring Chargesexcludingsharebasedcompensationrelatedcharges RestructuringChargesexcludingsharebasedcompensationrelatedcharges	2500000	USD
CY2016Q1	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	1300000	USD
CY2016Q2	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	0	USD
CY2016Q3	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	0	USD
CY2016Q4	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	0	USD
CY2016	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	1300000	USD
CY2016Q1	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	-400000	USD
CY2016Q2	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	-200000	USD
CY2016Q3	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	2300000	USD
CY2016Q4	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	200000	USD
CY2016	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	1900000	USD
CY2016Q1	us-gaap	Depreciation Depreciation	29100000	USD
CY2016Q2	us-gaap	Depreciation Depreciation	28500000	USD
CY2016Q3	us-gaap	Depreciation Depreciation	26700000	USD
CY2016Q4	us-gaap	Depreciation Depreciation	24600000	USD
CY2016	us-gaap	Depreciation Depreciation	108900000	USD
CY2016Q1	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	28300000	USD
CY2016Q2	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	30400000	USD
CY2016Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	28300000	USD
CY2016Q4	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	28300000	USD
CY2016	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	115300000	USD
CY2016Q1	us-gaap	Share Based Compensation ShareBasedCompensation	4800000	USD
CY2016Q2	us-gaap	Share Based Compensation ShareBasedCompensation	4500000	USD
CY2016Q3	us-gaap	Share Based Compensation ShareBasedCompensation	4500000	USD
CY2016Q4	us-gaap	Share Based Compensation ShareBasedCompensation	4200000	USD
CY2016	us-gaap	Share Based Compensation ShareBasedCompensation	18000000.0	USD
CY2016Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	24200000	USD
CY2016Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	59000000.0	USD
CY2016Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	63500000	USD
CY2016Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	58200000	USD
CY2016	us-gaap	Operating Income Loss OperatingIncomeLoss	204900000	USD
CY2016Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	24200000	USD
CY2016Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	59000000.0	USD
CY2016Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	63500000	USD
CY2016Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	58200000	USD
CY2016	us-gaap	Operating Income Loss OperatingIncomeLoss	204900000	USD
CY2016Q1	us-gaap	Net Income Loss NetIncomeLoss	-2300000	USD
CY2016Q2	us-gaap	Net Income Loss NetIncomeLoss	28500000	USD
CY2016Q3	us-gaap	Net Income Loss NetIncomeLoss	38100000	USD
CY2016Q4	us-gaap	Net Income Loss NetIncomeLoss	26600000	USD
CY2016	us-gaap	Net Income Loss NetIncomeLoss	90900000	USD
CY2017Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	1845200000	USD
CY2017Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	1280700000	USD
CY2016Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	1787300000	USD
CY2015Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	1778700000	USD
CY2014Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	1833700000	USD
CY2017	us-gaap	Real Estate Other Acquisitions RealEstateOtherAcquisitions	63000000.0	USD
CY2016	us-gaap	Real Estate Other Acquisitions RealEstateOtherAcquisitions	48900000	USD
CY2015	us-gaap	Real Estate Other Acquisitions RealEstateOtherAcquisitions	40000000.0	USD
CY2017	us-gaap	Real Estate Cost Of Real Estate Sold RealEstateCostOfRealEstateSold	28900000	USD
CY2016	us-gaap	Real Estate Cost Of Real Estate Sold RealEstateCostOfRealEstateSold	49400000	USD
CY2015	us-gaap	Real Estate Cost Of Real Estate Sold RealEstateCostOfRealEstateSold	26500000	USD
CY2017	out	Sec Schedule Iii Real Estate Foreign Exchange SECScheduleIIIRealEstateForeignExchange	23800000	USD
CY2016	out	Sec Schedule Iii Real Estate Foreign Exchange SECScheduleIIIRealEstateForeignExchange	9100000	USD
CY2015	out	Sec Schedule Iii Real Estate Foreign Exchange SECScheduleIIIRealEstateForeignExchange	-68500000	USD
CY2017Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	1845200000	USD
CY2016Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	1787300000	USD
CY2015Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	1778700000	USD
CY2016Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	1208500000	USD
CY2015Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	1137700000	USD
CY2014Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	1109400000	USD
CY2017	us-gaap	Sec Schedule Iii Real Estate Accumulated Depreciation Depreciation Expense SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense	76200000	USD
CY2016	us-gaap	Sec Schedule Iii Real Estate Accumulated Depreciation Depreciation Expense SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense	98200000	USD
CY2015	us-gaap	Sec Schedule Iii Real Estate Accumulated Depreciation Depreciation Expense SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense	104900000	USD
CY2017	us-gaap	Real Estate Accumulated Depreciation Real Estate Sold RealEstateAccumulatedDepreciationRealEstateSold	24500000	USD
CY2016	us-gaap	Real Estate Accumulated Depreciation Real Estate Sold RealEstateAccumulatedDepreciationRealEstateSold	34600000	USD
CY2015	us-gaap	Real Estate Accumulated Depreciation Real Estate Sold RealEstateAccumulatedDepreciationRealEstateSold	22500000	USD
CY2017	out	Sec Schedule Iii Real Estate Accumulated Depreciation Foreign Exchange SECScheduleIIIRealEstateAccumulatedDepreciationForeignExchange	-20500000	USD
CY2016	out	Sec Schedule Iii Real Estate Accumulated Depreciation Foreign Exchange SECScheduleIIIRealEstateAccumulatedDepreciationForeignExchange	-7200000	USD
CY2015	out	Sec Schedule Iii Real Estate Accumulated Depreciation Foreign Exchange SECScheduleIIIRealEstateAccumulatedDepreciationForeignExchange	54100000	USD
CY2017Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	1280700000	USD
CY2016Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	1208500000	USD
CY2015Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	1137700000	USD

Files In Submission

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2016 Q4 Form 10-K Financial Statement

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