$AMT
AMERICAN TOWER CORP /MA/ Stock $amt

$amt Overview Financials Valuation SEC Filings Company Website

2012 Form 10-K Financial Statement

#000119312513077821 Filed on February 27, 2013

Income Statement

Concept	2012	2011 Q4	2011 Q3
Revenue	$2.876B	$653.2M	$630.4M
YoY Change	17.7%	19.27%	22.81%
Cost Of Revenue	$35.80M	$165.6M	$8.668M
YoY Change	16.67%	24.6%	14.31%
Gross Profit	$2.840B	$487.6M	$621.7M
YoY Change	17.71%	17.58%	22.94%
Gross Profit Margin	98.76%	74.65%	98.63%
Selling, General & Admin	$327.3M	$73.90M	$76.48M
YoY Change	13.32%	13.0%	33.48%
% of Gross Profit	11.52%	15.16%	12.3%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$411.9M	$143.6M	$142.1M
YoY Change	16.55%	15.71%	23.14%
% of Gross Profit	14.5%	29.45%	22.86%
Operating Expenses	$327.3M	$239.9M	$76.48M
YoY Change	13.32%	13.54%	33.48%
Operating Profit	$1.120B	$247.7M	$228.3M
YoY Change	21.69%	21.77%	7.0%
Interest Expense	$401.7M	-$110.6M	$77.80M
YoY Change	28.8%	80.42%	23.67%
% of Operating Profit	35.87%	-44.64%	34.08%
Other Income/Expense, Net	-$418.4M	$22.30M	-$223.4M
YoY Change	1.26%	-737.14%	354.62%
Pretax Income	$788.0M	$159.5M	$4.953M
YoY Change	29.4%	16.59%	-96.98%
Income Tax	$107.3M	-$36.90M	$24.68M
% Of Pretax Income	13.62%	-23.13%	498.3%
Net Earnings	$637.3M	$205.1M	-$15.70M
YoY Change	60.74%	145.6%	-116.8%
Net Earnings / Revenue	22.16%	31.4%	-2.49%
Basic Earnings Per Share	$1.61	$0.52	-$0.04
Diluted Earnings Per Share	$1.60	$0.52	-$0.04
COMMON SHARES
Basic Shares Outstanding	394.8M shares	393.0M shares	395.2M shares
Diluted Shares Outstanding	399.3M shares		395.2M shares

Balance Sheet

Concept	2012	2011 Q4	2011 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$375.0M	$352.0M	$182.0M
YoY Change	6.53%	-62.15%	-56.14%
Cash & Equivalents	$369.0M	$330.2M	$177.5M
Short-Term Investments	$6.000M	$22.00M	$5.000M
Other Short-Term Assets	$263.0M	$241.0M	$228.6M
YoY Change	9.13%	65.52%	-47.57%
Inventory
Prepaid Expenses		$28.03M
Receivables	$144.0M	$100.6M	$100.1M
Other Receivables	$55.00M	$81.00M	$0.00
Total Short-Term Assets	$836.0M	$775.2M	$813.8M
YoY Change	7.87%	-44.96%	-13.79%
LONG-TERM ASSETS
Property, Plant & Equipment	$5.766B	$4.982B	$4.126B
YoY Change	15.74%	35.25%	18.08%
Goodwill		$2.676B	$2.674B
YoY Change		6.54%
Intangibles		$2.495B	$2.208B
YoY Change		32.3%
Long-Term Investments
YoY Change
Other Assets	$1.374B	$495.6M	$336.1M
YoY Change	10.54%	55.95%	253.77%
Total Long-Term Assets	$13.25B	$11.47B	$10.08B
YoY Change	15.58%	27.96%	18.54%
TOTAL ASSETS
Total Short-Term Assets	$836.0M	$775.2M	$813.8M
Total Long-Term Assets	$13.25B	$11.47B	$10.08B
Total Assets	$14.09B	$12.24B	$10.90B
YoY Change	15.09%	18.05%	15.31%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$90.00M	$215.9M	$353.0M
YoY Change	-58.33%	221.69%	43.5%
Accrued Expenses	$358.0M	$305.5M	$62.00M
YoY Change	-3.5%	37.21%	24.0%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$60.00M	$101.8M	$861.0M
YoY Change	-41.18%	35.94%	381.01%
Total Short-Term Liabilities	$632.0M	$781.5M	$1.371B
YoY Change	-19.08%	44.87%	122.98%
LONG-TERM LIABILITIES
Long-Term Debt	$8.693B	$7.134B	$4.971B
YoY Change	21.85%	29.42%	7.46%
Other Long-Term Liabilities	$1.080B	$572.1M	$805.6M
YoY Change	17.9%	21.27%	6.85%
Total Long-Term Liabilities	$9.773B	$7.707B	$805.6M
YoY Change	21.4%	28.78%	-85.03%
TOTAL LIABILITIES
Total Short-Term Liabilities	$632.0M	$781.5M	$1.371B
Total Long-Term Liabilities	$9.773B	$7.707B	$805.6M
Total Liabilities	$10.52B	$8.832B	$7.548B
YoY Change	17.43%	28.65%	25.84%
SHAREHOLDERS EQUITY
Retained Earnings		-$1.478B	-$1.545B
YoY Change		-14.9%
Common Stock		$3.936M	$4.884M
YoY Change		-19.01%
Preferred Stock
YoY Change
Treasury Stock (at cost)		$0.00	$3.775B
YoY Change		-100.0%
Treasury Stock Shares		0.000 shares	94.97M shares
Shareholders Equity	$3.573B	$3.287B	$3.263B
YoY Change
Total Liabilities & Shareholders Equity	$14.09B	$12.24B	$10.90B
YoY Change	15.09%	18.05%	15.31%

Cashflow Statement

Concept	2012	2011 Q4	2011 Q3
OPERATING ACTIVITIES
Net Income	$637.3M	$205.1M	-$15.70M
YoY Change	60.74%	145.6%	-116.8%
Depreciation, Depletion And Amortization	$411.9M	$143.6M	$142.1M
YoY Change	16.55%	15.71%	23.14%
Cash From Operating Activities	$1.414B	$315.9M	$290.7M
YoY Change	21.31%	28.21%	12.59%
INVESTING ACTIVITIES
Capital Expenditures	-$568.0M	-$125.9M	-$160.5M
YoY Change	8.6%	6.51%	67.19%
Acquisitions	$1.998B
YoY Change	-13.91%
Other Investing Activities	$14.76M	-$1.105B	-$341.8M
YoY Change	-157.89%	241.67%	-28.24%
Cash From Investing Activities	-$2.558B	-$1.231B	-$502.3M
YoY Change	-8.33%	178.74%	-12.23%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net	$62.73M
YoY Change	-85.66%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	$1.170B	1.082B	61.70M
YoY Change	7.76%	52.3%	-83.54%
NET CHANGE
Cash From Operating Activities	$1.414B	315.9M	290.7M
Cash From Investing Activities	-$2.558B	-1.231B	-502.3M
Cash From Financing Activities	$1.170B	1.082B	61.70M
Net Change In Cash	$26.37M	166.5M	-149.9M
YoY Change	-104.89%	-67.67%	-346.55%
FREE CASH FLOW
Cash From Operating Activities	$1.414B	$315.9M	$290.7M
Capital Expenditures	-$568.0M	-$125.9M	-$160.5M
Free Cash Flow	$1.982B	$441.8M	$451.2M
YoY Change	17.37%	21.17%	27.39%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
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CY2012	dei	Document Period End Date DocumentPeriodEndDate	2012-12-31
CY2012	dei	Amendment Flag AmendmentFlag	false
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CY2012	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2012
CY2012	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2012	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2012	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2012	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2012	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
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CY2012	dei	Entity Registrant Name EntityRegistrantName	AMERICAN TOWER CORP /MA/
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CY2011	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-14622000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	1.00
CY2011	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0
CY2011	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.00
CY2011	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.99
CY2011	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0
CY2011	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.99
CY2012	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	107304000	USD
CY2011	us-gaap	Cost Of Services CostOfServices	30684000	USD
CY2012	us-gaap	Cost Of Services CostOfServices	35798000	USD
CY2010	us-gaap	Cost Of Services CostOfServices	26957000	USD
CY2010	us-gaap	Direct Costs Of Leased And Rented Property Or Equipment DirectCostsOfLeasedAndRentedPropertyOrEquipment	447629000	USD
CY2011	us-gaap	Direct Costs Of Leased And Rented Property Or Equipment DirectCostsOfLeasedAndRentedPropertyOrEquipment	590272000	USD
CY2012	us-gaap	Direct Costs Of Leased And Rented Property Or Equipment DirectCostsOfLeasedAndRentedPropertyOrEquipment	686681000	USD
CY2012	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	327301000	USD
CY2010	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	229769000	USD
CY2011	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	288824000	USD
CY2012	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	0	USD
CY2011	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	0	USD
CY2011	us-gaap	Foreign Currency Transaction Gain Loss Unrealized ForeignCurrencyTransactionGainLossUnrealized	-131053000	USD
CY2010	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	19000	USD
CY2010	us-gaap	Foreign Currency Transaction Gain Loss Unrealized ForeignCurrencyTransactionGainLossUnrealized	4792000	USD
CY2011	us-gaap	Investment Income Interest InvestmentIncomeInterest	7378000	USD
CY2011	us-gaap	Interest Expense InterestExpense	311854000	USD
CY2011	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2011	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-122975000	USD
CY2011	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-413237000	USD
CY2010	us-gaap	Investment Income Interest InvestmentIncomeInterest	5024000	USD
CY2010	us-gaap	Interest Expense InterestExpense	246018000	USD
CY2010	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-1886000	USD
CY2010	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	315000	USD
CY2010	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-228353000	USD
CY2012	us-gaap	Investment Income Interest InvestmentIncomeInterest	7680000	USD
CY2012	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-418425000	USD
CY2012	us-gaap	Interest Expense InterestExpense	401665000	USD
CY2012	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-38300000	USD
CY2012	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-398000	USD
CY2012	amt	Net Interest Income Tv Azteca NetInterestIncomeTVAzteca	14258000	USD
CY2011	amt	Net Interest Income Tv Azteca NetInterestIncomeTVAzteca	14214000	USD
CY2010	amt	Net Interest Income Tv Azteca NetInterestIncomeTVAzteca	14212000	USD
CY2011Q4	amt	Interest Expense Tv Azteca InterestExpenseTVAzteca	1474000	USD
CY2010Q4	amt	Interest Expense Tv Azteca InterestExpenseTVAzteca	1487000	USD
CY2012Q4	amt	Interest Expense Tv Azteca InterestExpenseTVAzteca	1485000	USD
CY2012	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.90
CY2011	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.35
CY2010	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0
CY2012	us-gaap	Foreign Currency Transaction Gain Loss Unrealized ForeignCurrencyTransactionGainLossUnrealized	-34330000	USD
CY2010	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	7000	USD
CY2010	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	9496000	USD
CY2010	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	423638000	USD
CY2010	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	424308000	USD
CY2011	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	1977000	USD
CY2011	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-104000	USD
CY2011	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	194720000	USD
CY2011	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	215792000	USD
CY2012	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-5315000	USD
CY2012	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	531950000	USD
CY2010	amt	Reclassifications Due To Reit Conversion ReclassificationsDueToReitConversion	0	USD
CY2012	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	596553000	USD
CY2012	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	0	USD
CY2011	amt	Reclassifications Due To Reit Conversion ReclassificationsDueToReitConversion	-1752000	USD
CY2012	amt	Reclassifications Due To Reit Conversion ReclassificationsDueToReitConversion	0	USD
CY2012	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	64603000	USD
CY2011	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	21072000	USD
CY2010	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	-670000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment For Writedown Of Securities Included In Net Income Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentForWritedownOfSecuritiesIncludedInNetIncomeNetOfTax	495000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment For Writedown Of Securities Included In Net Income Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentForWritedownOfSecuritiesIncludedInNetIncomeNetOfTax	0	USD
CY2010	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment For Writedown Of Securities Included In Net Income Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentForWritedownOfSecuritiesIncludedInNetIncomeNetOfTax	0	USD
CY2012Q4	amt	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentTax	-7677000	USD
CY2011Q4	amt	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentTax	-1702000	USD
CY2010Q4	amt	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentTax	3541000	USD
CY2010	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment On Derivatives Included In Net Income Tax OtherComprehensiveIncomeLossReclassificationAdjustmentOnDerivativesIncludedInNetIncomeTax	75000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment On Derivatives Included In Net Income Tax OtherComprehensiveIncomeLossReclassificationAdjustmentOnDerivativesIncludedInNetIncomeTax	74000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment On Derivatives Included In Net Income Tax OtherComprehensiveIncomeLossReclassificationAdjustmentOnDerivativesIncludedInNetIncomeTax	208000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	0	USD
CY2011	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	-65000	USD
CY2010	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	4000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-58387000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-187466000	USD
CY2010	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	41081000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-187120000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-62075000	USD
CY2010	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	50702000	USD
CY2010	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment On Derivatives Included In Net Income Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentOnDerivativesIncludedInNetIncomeNetOfTax	118000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment On Derivatives Included In Net Income Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentOnDerivativesIncludedInNetIncomeNetOfTax	225000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment On Derivatives Included In Net Income Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentOnDerivativesIncludedInNetIncomeNetOfTax	1132000	USD
CY2012Q4	amt	Other Comprehensive Income Unrealized Gain Loss On Change In Derivatives Tax OtherComprehensiveIncomeUnrealizedGainLossOnChangeInDerivativesTax	-905000	USD
CY2011Q4	amt	Other Comprehensive Income Unrealized Gain Loss On Change In Derivatives Tax OtherComprehensiveIncomeUnrealizedGainLossOnChangeInDerivativesTax	1334000	USD
CY2010Q4	amt	Other Comprehensive Income Unrealized Gain Loss On Change In Derivatives Tax OtherComprehensiveIncomeUnrealizedGainLossOnChangeInDerivativesTax	6046000	USD
CY2009Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3318125000	USD
CY2010	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	174077000	USD
CY2010	amt	Stock Issued During Period Value Stock Warrants Exercised StockIssuedDuringPeriodValueStockWarrantsExercised	6859000	USD
CY2010	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	2577000	USD
CY2010	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	420789000	USD
CY2012	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	103820000	USD
CY2012	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	4527000	USD
CY2012	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	62728000	USD
CY2012	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	580000	USD
CY2012	us-gaap	Noncontrolling Interest Increase From Business Combination NoncontrollingInterestIncreaseFromBusinessCombination	53341000	USD
CY2011	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	128158000	USD
CY2011	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	3523000	USD
CY2011	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	423932000	USD
CY2011	us-gaap	Noncontrolling Interest Increase From Business Combination NoncontrollingInterestIncreaseFromBusinessCombination	141387000	USD
CY2011	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	507000	USD
CY2010	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	599000	USD
CY2010Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3504558000	USD
CY2011	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	-137765000	USD
CY2012	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	-356291000	USD
CY2012	us-gaap	Share Based Compensation ShareBasedCompensation	51983000	USD
CY2012	amt	Deferred Income Taxes Related To Discontinued Operations DeferredIncomeTaxesRelatedToDiscontinuedOperations	0	USD
CY2012	us-gaap	Increase Decrease In Restricted Cash For Operating Activities IncreaseDecreaseInRestrictedCashForOperatingActivities	26500000	USD
CY2012	amt	Loss Gain On Investments And Other Non Cash Income Expense LossGainOnInvestmentsAndOtherNonCashIncomeExpense	60002000	USD
CY2012	us-gaap	Restructuring Costs And Asset Impairment Charges RestructuringCostsAndAssetImpairmentCharges	34280000	USD
CY2012	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	11090000	USD
CY2012	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	-4155000	USD
CY2012	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1414391000	USD
CY2012	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-2558385000	USD
CY2012	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	1170366000	USD
CY2012	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	12055000	USD
CY2011	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-14997000	USD
CY2012	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	38427000	USD
CY2011	us-gaap	Share Based Compensation ShareBasedCompensation	47437000	USD
CY2011	us-gaap	Restructuring Costs And Asset Impairment Charges RestructuringCostsAndAssetImpairmentCharges	17412000	USD
CY2011	amt	Deferred Income Taxes Related To Discontinued Operations DeferredIncomeTaxesRelatedToDiscontinuedOperations	0	USD
CY2011	us-gaap	Increase Decrease In Restricted Cash For Operating Activities IncreaseDecreaseInRestrictedCashForOperatingActivities	-11867000	USD
CY2011	amt	Loss Gain On Investments And Other Non Cash Income Expense LossGainOnInvestmentsAndOtherNonCashIncomeExpense	149191000	USD
CY2011	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	1086095000	USD
CY2011	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	13092000	USD
CY2011	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	7101000	USD
CY2011	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1165942000	USD
CY2011	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-2790812000	USD
CY2011	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-553772000	USD
CY2010Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	883963000	USD
CY2010	us-gaap	Share Based Compensation ShareBasedCompensation	52555000	USD
CY2010	amt	Deferred Income Taxes Related To Discontinued Operations DeferredIncomeTaxesRelatedToDiscontinuedOperations	19000	USD
CY2010	us-gaap	Increase Decrease In Restricted Cash For Operating Activities IncreaseDecreaseInRestrictedCashForOperatingActivities	4941000	USD
CY2010	amt	Loss Gain On Investments And Other Non Cash Income Expense LossGainOnInvestmentsAndOtherNonCashIncomeExpense	5085000	USD
CY2010	us-gaap	Restructuring Costs And Asset Impairment Charges RestructuringCostsAndAssetImpairmentCharges	16652000	USD
CY2010	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	9408000	USD
CY2010	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	4188000	USD
CY2010	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1020977000	USD
CY2010	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1300902000	USD
CY2010	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	910330000	USD
CY2010	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	6265000	USD
CY2010	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	636670000	USD
CY2012	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	29300000	USD
CY2011	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	56852000	USD
CY2010	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	188327000	USD
CY2011	amt	Proceeds From Sale Of Available For Sale Securities And Other Productive Assets ProceedsFromSaleOfAvailableForSaleSecuritiesAndOtherProductiveAssets	69971000	USD
CY2012	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	568048000	USD
CY2012	amt	Proceeds From Sale Of Available For Sale Securities And Other Productive Assets ProceedsFromSaleOfAvailableForSaleSecuritiesAndOtherProductiveAssets	374682000	USD
CY2010	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	899606000	USD
CY2012	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	1997955000	USD
CY2010	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	24157000	USD
CY2010	amt	Proceeds From Sale Of Available For Sale Securities And Other Productive Assets ProceedsFromSaleOfAvailableForSaleSecuritiesAndOtherProductiveAssets	21722000	USD
CY2012	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	14758000	USD
CY2010	us-gaap	Payments To Acquire Short Term Investments PaymentsToAcquireShortTermInvestments	52197000	USD
CY2011	us-gaap	Payments To Acquire Short Term Investments PaymentsToAcquireShortTermInvestments	42590000	USD
CY2011	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-25495000	USD
CY2010	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	346664000	USD
CY2011	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	2320673000	USD
CY2011	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	523015000	USD
CY2012	us-gaap	Payments To Acquire Short Term Investments PaymentsToAcquireShortTermInvestments	352306000	USD
CY2012	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	2582000000	USD
CY2012	us-gaap	Proceeds From Issuance Of Senior Long Term Debt ProceedsFromIssuanceOfSeniorLongTermDebt	698670000	USD
CY2012	us-gaap	Proceeds From Issuance Of Other Long Term Debt ProceedsFromIssuanceOfOtherLongTermDebt	177299000	USD
CY2012	us-gaap	Repayments Of Long Term Debt And Capital Securities RepaymentsOfLongTermDebtAndCapitalSecurities	2658566000	USD
CY2012	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-13673000	USD
CY2011	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-15084000	USD
CY2010	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	500562000	USD
CY2010	us-gaap	Proceeds From Issuance Of Senior Long Term Debt ProceedsFromIssuanceOfSeniorLongTermDebt	1698370000	USD
CY2010	us-gaap	Proceeds From Issuance Of Other Long Term Debt ProceedsFromIssuanceOfOtherLongTermDebt	0	USD
CY2010	us-gaap	Repayments Of Long Term Debt And Capital Securities RepaymentsOfLongTermDebtAndCapitalSecurities	983737000	USD
CY2012	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	21880000	USD
CY2011	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	84699000	USD
CY2010	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	1603000	USD
CY2012	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	43679000	USD
CY2012	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-84640000	USD
CY2012	amt	Increase Decrease In Deferred Rent IncreaseDecreaseInDeferredRent	-164219000	USD
CY2012	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	25031000	USD
CY2012	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	68015000	USD
CY2011	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	43659000	USD
CY2011	amt	Increase Decrease In Deferred Rent IncreaseDecreaseInDeferredRent	-143994000	USD
CY2011	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	23360000	USD
CY2012	amt	Increase Decrease In Deferred Rent Liability IncreaseDecreaseInDeferredRentLiability	-33707000	USD
CY2012	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-5285000	USD
CY2011	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	28857000	USD
CY2011	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	-6351000	USD
CY2011	amt	Increase Decrease In Deferred Rent Liability IncreaseDecreaseInDeferredRentLiability	-30952000	USD
CY2011	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	9483000	USD
CY2010	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	18974000	USD
CY2009Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	247293000	USD
CY2012	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-55264000	USD
CY2011	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	128121000	USD
CY2010	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	0	USD
CY2010	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	48834000	USD
CY2010	amt	Increase Decrease In Deferred Rent IncreaseDecreaseInDeferredRent	-105226000	USD
CY2010	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	16633000	USD
CY2010	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	44382000	USD
CY2010	amt	Increase Decrease In Deferred Rent Liability IncreaseDecreaseInDeferredRentLiability	-22269000	USD
CY2010	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	3537000	USD
CY2012	amt	Non Cash Gain Losses On Extinguishments Of Long Termobligations NonCashGainLossesOnExtinguishmentsOfLongTermobligations	0	USD
CY2011	amt	Non Cash Gain Losses On Extinguishments Of Long Termobligations NonCashGainLossesOnExtinguishmentsOfLongTermobligations	0	USD
CY2010	amt	Non Cash Gain Losses On Extinguishments Of Long Termobligations NonCashGainLossesOnExtinguishmentsOfLongTermobligations	0	USD
CY2011	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	1005014000	USD
CY2012	us-gaap	Proceeds From Issuance Of Unsecured Debt ProceedsFromIssuanceOfUnsecuredDebt	750000000	USD
CY2010	us-gaap	Proceeds From Issuance Of Unsecured Debt ProceedsFromIssuanceOfUnsecuredDebt	0	USD
CY2011	us-gaap	Repayments Of Long Term Debt And Capital Securities RepaymentsOfLongTermDebtAndCapitalSecurities	395384000	USD
CY2011	us-gaap	Proceeds From Issuance Of Senior Long Term Debt ProceedsFromIssuanceOfSeniorLongTermDebt	499290000	USD
CY2011	us-gaap	Proceeds From Issuance Of Unsecured Debt ProceedsFromIssuanceOfUnsecuredDebt	0	USD
CY2011	us-gaap	Proceeds From Issuance Of Other Long Term Debt ProceedsFromIssuanceOfOtherLongTermDebt	212783000	USD
CY2012	us-gaap	Proceeds From Payments To Minority Shareholders ProceedsFromPaymentsToMinorityShareholders	52761000	USD
CY2011	us-gaap	Proceeds From Payments To Minority Shareholders ProceedsFromPaymentsToMinorityShareholders	140880000	USD
CY2010	us-gaap	Proceeds From Payments To Minority Shareholders ProceedsFromPaymentsToMinorityShareholders	-599000	USD
CY2012	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	62728000	USD
CY2011	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	437402000	USD
CY2010	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	430618000	USD
CY2012	us-gaap	Proceeds From Issuance Or Sale Of Equity ProceedsFromIssuanceOrSaleOfEquity	55441000	USD
CY2011	us-gaap	Proceeds From Issuance Or Sale Of Equity ProceedsFromIssuanceOrSaleOfEquity	85642000	USD
CY2010	us-gaap	Proceeds From Issuance Or Sale Of Equity ProceedsFromIssuanceOrSaleOfEquity	138508000	USD
CY2010	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-12156000	USD
CY2012	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	355574000	USD
CY2011	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	137765000	USD
CY2010	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	0	USD
CY2010Q4	amt	Allowancefordoubtfulaccountsreceivableperiodincrease Allowancefordoubtfulaccountsreceivableperiodincrease	16219000	USD
CY2012	amt	Concentrations Of Credit Risk Revenues From Customers ConcentrationsOfCreditRiskRevenuesFromCustomers	0.51
CY2012	amt	Straight Line Revenue StraightLineRevenue	165800000	USD
CY2012	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<p style='margin-top:0pt; margin-bottom:0pt'><font style="font-family:Times New Roman;font-size:10pt;font-style:italic;margin-left:0px;">Concentrations of Credit Risk</font><font style="font-family:Times New Roman;font-size:10pt;">—The Company is subject to concentrations of credit risk related to its cash and cash equivalents, notes receivable, accounts receivable, deferred rent asset and derivative financial instruments. The Company mitigates its risk with respect to cash and cash equivalents and derivative financial instruments by maintaining its deposits and contracts at high quality financial institutions and monitoring the credit ratings of those institutions. </font></p><p style='margin-top:0pt; margin-bottom:0pt'> </p><p style='margin-top:0pt; margin-bottom:0pt'><font style="font-family:Times New Roman;font-size:10pt;margin-left:0px;">The Company derives the largest portion of its revenues, corresponding accounts receivable and the related deferred rent asset from a relatively small number of tenants in the telecommunications industry, and </font><font style="font-family:Times New Roman;font-size:10pt;">approximately </font><font style="font-family:Times New Roman;font-size:10pt;">51</font><font style="font-family:Times New Roman;font-size:10pt;">%</font><font style="font-family:Times New Roman;font-size:10pt;"> </font><font style="font-family:Times New Roman;font-size:10pt;">of its revenues </font><font style="font-family:Times New Roman;font-size:10pt;">is</font><font style="font-family:Times New Roman;font-size:10pt;"> derived from four customers. In addition, the Company has concentrations of credit risk in certain geographic areas.</font><font style="font-family:Times New Roman;font-size:10pt;"> </font></p><p style='margin-top:0pt; margin-bottom:0pt'><font style="font-family:Times New Roman;font-size:10pt;margin-left:22.5px;"> </font></p><p style='margin-top:0pt; margin-bottom:0pt'><font style="font-family:Times New Roman;font-size:10pt;margin-left:0px;">The Company mitigates its concentrations of credit risk with respect to notes and trade receivables and the related deferred rent assets by actively monitoring the credit worthiness of its borrowers and tenants. In recognizing customer revenue, the Company must assess th</font><font style="font-family:Times New Roman;font-size:10pt;">e </font><font style="font-family:Times New Roman;font-size:10pt;">collect</font><font style="font-family:Times New Roman;font-size:10pt;">i</font><font style="font-family:Times New Roman;font-size:10pt;">bility</font><font style="font-family:Times New Roman;font-size:10pt;"> of both the amounts billed and the portion recognized on a straight-line basis. This assessment takes tenant credit risk and business and industry conditions into consideration to ultimately determine the </font><font style="font-family:Times New Roman;font-size:10pt;">collect</font><font style="font-family:Times New Roman;font-size:10pt;">i</font><font style="font-family:Times New Roman;font-size:10pt;">bility</font><font style="font-family:Times New Roman;font-size:10pt;"> of the amounts billed. To the extent the amounts, based on management's estimates, may not be collectible, recognition is deferred until such point as the uncertainty is resolved. Any amounts </font><font style="font-family:Times New Roman;font-size:10pt;">that</font><font style="font-family:Times New Roman;font-size:10pt;"> were previously recognized as revenue and subsequently determined to be uncollectible are charged to bad debt expense included in selling, general, administrative and development expense in the accompanying consolidated statement of operations. </font></p><p style='margin-top:0pt; margin-bottom:0pt'> </p><p style='margin-top:0pt; margin-bottom:0pt'><font style="font-family:Times New Roman;font-size:10pt;margin-left:0px;">Accounts receivable are reported net of allowances for doubtful accounts related to estimated losses resulting from a tenant's inability to make required payments and </font><font style="font-family:Times New Roman;font-size:10pt;">allowances</font><font style="font-family:Times New Roman;font-size:10pt;"> for amounts invoiced whose </font><font style="font-family:Times New Roman;font-size:10pt;">collect</font><font style="font-family:Times New Roman;font-size:10pt;">i</font><font style="font-family:Times New Roman;font-size:10pt;">bility</font><font style="font-family:Times New Roman;font-size:10pt;"> is not reasonably assured. These allowances are generally estimated based on payment patterns, days past due and collection history, and incorporate changes in economic conditions that may not be reflected in historical trends, such as tenants in bankruptcy, liquidation or reorganization. Receivables are written-off against the allowances when they are determined uncollectible. Such determination includes analysis and consideration of the particular conditions of the account. Changes in the allowances were as follows for the years ended December 31, (in thousands):</font></p><p style='margin-top: 0pt; margin-bottom: 0pt;'></p><div><table style="border-collapse:collapse;margin-top:20px;"><tr style="height: 11px"><td style="width: 227px; text-align:left;border-color:#000000;min-width:227px;"> </td><td style="width: 16px; text-align:left;border-color:#000000;min-width:16px;"> </td><td style="width: 74px; text-align:left;border-color:#000000;min-width:74px;"> </td><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td style="width: 16px; text-align:left;border-color:#000000;min-width:16px;"> </td><td style="width: 77px; text-align:left;border-color:#000000;min-width:77px;"> </td><td style="width: 21px; text-align:left;border-color:#000000;min-width:21px;"> </td><td style="width: 16px; text-align:left;border-color:#000000;min-width:16px;"> </td><td style="width: 79px; text-align:left;border-color:#000000;min-width:79px;"> </td></tr><tr style="height: 16px"><td style="width: 227px; text-align:left;border-color:#000000;min-width:227px;"> </td><td colspan="2" style="width: 90px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:90px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: center;">2012</font></td><td style="width: 20px; text-align:center;border-color:#000000;min-width:20px;"> </td><td colspan="2" style="width: 93px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:93px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: center;">2011</font></td><td style="width: 21px; text-align:center;border-color:#000000;min-width:21px;"> </td><td colspan="2" style="width: 95px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:95px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: center;">2010</font></td></tr><tr style="height: 14px"><td style="width: 227px; text-align:left;border-color:#000000;min-width:227px;"> </td><td style="width: 16px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:16px;"> </td><td style="width: 74px; border-top-style:solid;border-top-width:1px;text-align:right;border-color:#000000;min-width:74px;"> </td><td style="width: 20px; text-align:right;border-color:#000000;min-width:20px;"> </td><td style="width: 16px; border-top-style:solid;border-top-width:1px;text-align:right;border-color:#000000;min-width:16px;"> </td><td style="width: 77px; border-top-style:solid;border-top-width:1px;text-align:right;border-color:#000000;min-width:77px;"> </td><td style="width: 21px; text-align:right;border-color:#000000;min-width:21px;"> </td><td style="width: 16px; border-top-style:solid;border-top-width:1px;text-align:right;border-color:#000000;min-width:16px;"> </td><td style="width: 79px; border-top-style:solid;border-top-width:1px;text-align:right;border-color:#000000;min-width:79px;"> </td></tr><tr style="height: 16px"><td style="width: 227px; text-align:left;border-color:#000000;min-width:227px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;">Balance as of January 1</font></td><td style="width: 16px; text-align:center;border-color:#000000;min-width:16px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: center;">$</font></td><td style="width: 74px; text-align:right;border-color:#000000;min-width:74px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: right;"> 24,412</font></td><td style="width: 20px; text-align:right;border-color:#000000;min-width:20px;"> </td><td style="width: 16px; text-align:center;border-color:#000000;min-width:16px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: center;">$</font></td><td style="width: 77px; text-align:right;border-color:#000000;min-width:77px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: right;"> 22,505</font></td><td style="width: 21px; text-align:right;border-color:#000000;min-width:21px;"> </td><td style="width: 16px; text-align:center;border-color:#000000;min-width:16px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: center;">$</font></td><td style="width: 79px; text-align:right;border-color:#000000;min-width:79px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: right;"> 28,520</font></td></tr><tr style="height: 16px"><td style="width: 227px; text-align:left;border-color:#000000;min-width:227px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;">Current year increases </font></td><td style="width: 16px; text-align:center;border-color:#000000;min-width:16px;"> </td><td style="width: 74px; text-align:right;border-color:#000000;min-width:74px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: right;"> 8,028</font></td><td style="width: 20px; text-align:right;border-color:#000000;min-width:20px;"> </td><td style="width: 16px; text-align:right;border-color:#000000;min-width:16px;"> </td><td style="width: 77px; text-align:right;border-color:#000000;min-width:77px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: right;"> 17,008</font></td><td style="width: 21px; text-align:right;border-color:#000000;min-width:21px;"> </td><td style="width: 16px; text-align:right;border-color:#000000;min-width:16px;"> </td><td style="width: 79px; text-align:right;border-color:#000000;min-width:79px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: right;">16,219</font></td></tr><tr style="height: 16px"><td style="width: 227px; text-align:left;border-color:#000000;min-width:227px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;">Write-offs, net of recoveries and other </font></td><td style="width: 16px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:16px;"> </td><td style="width: 74px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:74px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: right;"> (12,034)</font></td><td style="width: 20px; text-align:right;border-color:#000000;min-width:20px;"> </td><td style="width: 16px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:16px;"> </td><td style="width: 77px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:77px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: right;"> (15,101)</font></td><td style="width: 21px; text-align:right;border-color:#000000;min-width:21px;"> </td><td style="width: 16px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:16px;"> </td><td style="width: 79px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:79px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: right;"> (22,234)</font></td></tr><tr style="height: 17px"><td style="width: 227px; text-align:left;border-color:#000000;min-width:227px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: left;">Balance as of December 31</font></td><td style="width: 16px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:center;border-color:#000000;min-width:16px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: center;">$</font></td><td style="width: 74px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:74px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: right;"> 20,406</font></td><td style="width: 20px; text-align:right;border-color:#000000;min-width:20px;"> </td><td style="width: 16px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:16px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: right;">$</font></td><td style="width: 77px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:77px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: right;"> 24,412</font></td><td style="width: 21px; text-align:right;border-color:#000000;min-width:21px;"> </td><td style="width: 16px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:16px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: right;">$</font></td><td style="width: 79px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:79px;"><font style="FONT-FAMILY: Times New Roman;FONT-SIZE: 10pt;COLOR: #000000;TEXT-ALIGN: right;"> 22,505</font></td></tr><tr style="height: 10px"><td style="width: 227px; text-align:left;border-color:#000000;min-width:227px;"> </td><td style="width: 16px; border-top-style:double;border-top-width:3px;text-align:left;border-color:#000000;min-width:16px;"> </td><td style="width: 74px; border-top-style:double;border-top-width:3px;text-align:left;border-color:#000000;min-width:74px;"> </td><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td style="width: 16px; border-top-style:double;border-top-width:3px;text-align:left;border-color:#000000;min-width:16px;"> </td><td style="width: 77px; border-top-style:double;border-top-width:3px;text-align:left;border-color:#000000;min-width:77px;"> </td><td style="width: 21px; text-align:left;border-color:#000000;min-width:21px;"> </td><td style="width: 16px; border-top-style:double;border-top-width:3px;text-align:left;border-color:#000000;min-width:16px;"> </td><td style="width: 79px; border-top-style:double;border-top-width:3px;text-align:left;border-color:#000000;min-width:79px;"> </td></tr></table></div>
CY2012	us-gaap	Nature Of Operations NatureOfOperations	<p style='margin-top:0pt; margin-bottom:0pt'><font style="font-family:Times New Roman;font-size:10pt;font-style:italic;margin-left:0px;">Business</font><font style="font-family:Times New Roman;font-size:10pt;">—</font><font style="font-family:Times New Roman;font-size:10pt;">American Tower Corporation is, through its various subsidiaries (collectively, “ATC” or the “Company”), an independent owner, operator and developer of wireless and broadcast communications </font><font style="font-family:Times New Roman;font-size:10pt;">real estate</font><font style="font-family:Times New Roman;font-size:10pt;"> in the United States, Brazil, Chile, Colombia, </font><font style="font-family:Times New Roman;font-size:10pt;">Germany, </font><font style="font-family:Times New Roman;font-size:10pt;">Ghana, India,</font><font style="font-family:Times New Roman;font-size:10pt;"> Mexico, Peru, South Africa and</font><font style="font-family:Times New Roman;font-size:10pt;"> Uganda. The Company's primary business is the leasing of antenna space on multi-tenant communications sites to wireless service providers, radio and television broadcast companies, wireless data </font><font style="font-family:Times New Roman;font-size:10pt;">and data </font><font style="font-family:Times New Roman;font-size:10pt;">providers, government agencies and municipalities and tenants in a number of other industries. The Company also manages rooftop and tower sites for property owners, operates in-building and outdoor distributed antenna system (“DAS”) networks, holds property interests under</font><font style="font-family:Times New Roman;font-size:10pt;"> third-party </font><font style="font-family:Times New Roman;font-size:10pt;">communications sites and provides network development services that primarily support its rental and management operations and the addition of new tenants and equipment on its sites. The Company began operating as a real estate investment trust (“REIT”) for federal income tax purposes effective January 1, 2012. </font></p><p style='margin-top:0pt; margin-bottom:0pt'> </p><p style='margin-top:0pt; margin-bottom:0pt'><font style="font-family:Times New Roman;font-size:10pt;margin-left:0px;">ATC is a holding company that conducts its operations through its directly and indirectly owned subsidiaries and its joint ventures. ATC's principal domestic operating subsidiaries are American Towers LLC and </font><font style="font-family:Times New Roman;font-size:10pt;">SpectraSite</font><font style="font-family:Times New Roman;font-size:10pt;"> Communications, LLC. ATC conducts its international operations through its subsidiary, American Tower International, Inc., which in turn conducts operations through its various international operating subsidiaries and joint ventures.</font><font style="font-family:Times New Roman;font-size:10pt;"> </font></p><p style='margin-top:0pt; margin-bottom:0pt'> </p>
CY2011	amt	Available For Sale Securities Shares Of Common Stock AvailableForSaleSecuritiesSharesOfCommonStock	39871	shares
CY2012	amt	Straight Line Expense StraightLineExpense	33700000	USD
CY2011Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	24412000	USD
CY2010Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	22505000	USD
CY2009Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	28520000	USD
CY2012Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	20406000	USD
CY2012Q4	amt	Allowancefordoubtfulaccountsreceivableperiodincrease Allowancefordoubtfulaccountsreceivableperiodincrease	8028000	USD
CY2011Q4	amt	Allowancefordoubtfulaccountsreceivableperiodincrease Allowancefordoubtfulaccountsreceivableperiodincrease	17008000	USD
CY2012	amt	Allowance For Doubtful Accounts Receivable Write Offs Net AllowanceForDoubtfulAccountsReceivableWriteOffsNet	-12034000	USD
CY2011	amt	Allowance For Doubtful Accounts Receivable Write Offs Net AllowanceForDoubtfulAccountsReceivableWriteOffsNet	-15101000	USD
CY2010	amt	Allowance For Doubtful Accounts Receivable Write Offs Net AllowanceForDoubtfulAccountsReceivableWriteOffsNet	-22234000	USD
CY2012	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	4400000	USD
CY2012	us-gaap	Defined Contribution Plan Maximum Annual Contribution Per Employee Percent DefinedContributionPlanMaximumAnnualContributionPerEmployeePercent	0.06
CY2012Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	400000	USD
CY2012Q4	us-gaap	Other Short Term Investments OtherShortTermInvestments	6018000	USD
CY2012	us-gaap	Property Plant And Equipment Useful Life PropertyPlantAndEquipmentUsefulLife	P20Y
CY2010	amt	Straight Line Revenue StraightLineRevenue	105200000	USD
CY2010	amt	Straight Line Expense StraightLineExpense	22300000	USD
CY2011	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	2900000	USD
CY2010	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	1900000	USD
CY2011Q4	us-gaap	Business Acquisition Cost Of Acquired Entity Transaction Costs BusinessAcquisitionCostOfAcquiredEntityTransactionCosts	28100000	USD
CY2010Q4	us-gaap	Business Acquisition Cost Of Acquired Entity Transaction Costs BusinessAcquisitionCostOfAcquiredEntityTransactionCosts	17000000	USD
CY2011Q4	us-gaap	Other Short Term Investments OtherShortTermInvestments	22300000	USD
CY2012	amt	Dividend Per Share DividendPerShare	0.90
CY2011	amt	Dividend Per Share DividendPerShare	0.35
CY2011	amt	Straight Line Revenue StraightLineRevenue	144000000	USD
CY2011	amt	Straight Line Expense StraightLineExpense	31000000	USD
CY2012Q4	us-gaap	Business Acquisition Cost Of Acquired Entity Transaction Costs BusinessAcquisitionCostOfAcquiredEntityTransactionCosts	25600000	USD
CY2012	amt	Labor Costs Capitalized LaborCostsCapitalized	41600000	USD
CY2011	amt	Labor Costs Capitalized LaborCostsCapitalized	35600000	USD
CY2010	amt	Labor Costs Capitalized LaborCostsCapitalized	31900000	USD
CY2012	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	1900000	USD
CY2011	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	2100000	USD
CY2010	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	1000000	USD
CY2012	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent DefinedContributionPlanEmployerMatchingContributionPercent	0.5
CY2012Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	19037000	USD
CY2012Q4	amt	Value Added Tax And Other Consumption Tax Receivables ValueAddedTaxAndOtherConsumptionTaxReceivables	22443000	USD
CY2011Q4	amt	Value Added Tax And Other Consumption Tax Receivables ValueAddedTaxAndOtherConsumptionTaxReceivables	81276000	USD
CY2012Q4	us-gaap	Other Assets Miscellaneous Current OtherAssetsMiscellaneousCurrent	66790000	USD
CY2011Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	28031000	USD
CY2011Q4	us-gaap	Other Assets Miscellaneous Current OtherAssetsMiscellaneousCurrent	59997000	USD
CY2012Q4	amt	Prepaid Income Tax PrepaidIncomeTax	57665000	USD
CY2011Q4	amt	Prepaid Income Tax PrepaidIncomeTax	31384000	USD
CY2011Q4	amt	Prepaid Operating Ground Leases PrepaidOperatingGroundLeases	49585000	USD
CY2012Q4	amt	Prepaid Operating Ground Leases PrepaidOperatingGroundLeases	56916000	USD
CY2012Q4	us-gaap	Capital Leases Balance Sheet Assets By Major Class Net CapitalLeasesBalanceSheetAssetsByMajorClassNet	868300000	USD
CY2012Q4	amt	Towers Asset Balance Gross TowersAssetBalanceGross	6929888000	USD
CY2012Q4	us-gaap	Machinery And Equipment Gross MachineryAndEquipmentGross	560009000	USD
CY2012Q4	us-gaap	Buildings And Improvements Gross BuildingsAndImprovementsGross	424213000	USD
CY2012Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	151289000	USD
CY2012Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	9071256000	USD
CY2012Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	3281261000	USD
CY2011Q4	amt	Towers Asset Balance Gross TowersAssetBalanceGross	6036484000	USD
CY2011Q4	us-gaap	Machinery And Equipment Gross MachineryAndEquipmentGross	459070000	USD
CY2011Q4	us-gaap	Buildings And Improvements Gross BuildingsAndImprovementsGross	369561000	USD
CY2011Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	155585000	USD
CY2011Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	7889364000	USD
CY2011Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	2907642000	USD
CY2012Q4	us-gaap	Land And Land Improvements LandAndLandImprovements	1005857000	USD
CY2011Q4	us-gaap	Land And Land Improvements LandAndLandImprovements	868664000	USD
CY2012	us-gaap	Depreciation Depreciation	411900000	USD
CY2011	us-gaap	Depreciation Depreciation	353400000	USD
CY2010	us-gaap	Depreciation Depreciation	286000000	USD
CY2011Q4	us-gaap	Capital Leases Balance Sheet Assets By Major Class Net CapitalLeasesBalanceSheetAssetsByMajorClassNet	790500000	USD
CY2012	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	248116000	USD
CY2012	us-gaap	Goodwill Translation Adjustments GoodwillTranslationAdjustments	-12360000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	4800651000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	1735136000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	3065515000	USD
CY2011Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	3977778000	USD
CY2011Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	1530257000	USD
CY2011Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	2447521000	USD
CY2012Q4	us-gaap	Deferred Finance Costs Noncurrent Net DeferredFinanceCostsNoncurrentNet	49538000	USD
CY2011Q4	us-gaap	Deferred Finance Costs Noncurrent Net DeferredFinanceCostsNoncurrentNet	47532000	USD
CY2012	amt	Weighted Average Remaining Amortization Period WeightedAverageRemainingAmortizationPeriod	13
CY2012	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	207300000	USD
CY2011	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	176400000	USD
CY2010	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	156100000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	211770000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	203439000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	189129000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	182149000	USD
CY2012Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	180515000	USD
CY2011Q4	us-gaap	Prepaid Expense Noncurrent PrepaidExpenseNoncurrent	167975000	USD
CY2012Q4	us-gaap	Long Term Accounts Notes And Loans Receivable Net Noncurrent LongTermAccountsNotesAndLoansReceivableNetNoncurrent	114256000	USD
CY2012Q4	us-gaap	Prepaid Expense Noncurrent PrepaidExpenseNoncurrent	176094000	USD
CY2012Q4	us-gaap	Other Assets Miscellaneous Noncurrent OtherAssetsMiscellaneousNoncurrent	162438000	USD
CY2011Q4	us-gaap	Long Term Accounts Notes And Loans Receivable Net Noncurrent LongTermAccountsNotesAndLoansReceivableNetNoncurrent	118892000	USD
CY2011Q4	us-gaap	Other Assets Miscellaneous Noncurrent OtherAssetsMiscellaneousNoncurrent	208748000	USD
CY2012Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	188168000	USD
CY2012Q4	amt	Accrued Property And Real Estate Taxes AccruedPropertyAndRealEstateTaxes	36814000	USD
CY2011Q4	amt	Accrued Property And Real Estate Taxes AccruedPropertyAndRealEstateTaxes	46930000	USD
CY2011Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	202661000	USD
CY2012Q4	amt	Payroll And Related Withholdings PayrollAndRelatedWithholdings	37586000	USD
CY2012Q4	us-gaap	Accrued Rent Current AccruedRentCurrent	24394000	USD
CY2011Q4	amt	Payroll And Related Withholdings PayrollAndRelatedWithholdings	31470000	USD
CY2011Q4	us-gaap	Accrued Rent Current AccruedRentCurrent	24477000	USD
CY2011Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	7134492000	USD
CY2012Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	8693345000	USD
CY2012Q4	amt	Capital Lease Obligation And Notes Payable Interest Rates Ranging Minimum CapitalLeaseObligationAndNotesPayableInterestRatesRangingMinimum	0.0274
CY2012Q4	amt	Capital Lease Obligation And Notes Payable Interest Rates Ranging Maximum CapitalLeaseObligationAndNotesPayableInterestRatesRangingMaximum	0.09
CY2012Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	60031000	USD
CY2012Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	1759043000	USD
CY2012Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	615894000	USD
CY2012Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	423722000	USD
CY2012Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	2340077000	USD
CY2012Q4	amt	Long Term Debt Total Cash Obligations LongTermDebtTotalCashObligations	8749415000	USD
CY2012Q4	us-gaap	Unamortized Loan Commitment And Origination Fees And Unamortized Discounts Or Premiums UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums	-3961000	USD
CY2012Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	3550648000	USD
CY2012Q4	us-gaap	Deferred Rent Credit Noncurrent DeferredRentCreditNoncurrent	254494000	USD
CY2012Q4	us-gaap	Deferred Revenue Noncurrent DeferredRevenueNoncurrent	164032000	USD
CY2011Q4	us-gaap	Deferred Rent Credit Noncurrent DeferredRentCreditNoncurrent	226383000	USD
CY2011Q4	us-gaap	Deferred Revenue Noncurrent DeferredRevenueNoncurrent	125472000	USD
CY2012Q4	us-gaap	Other Accrued Liabilities Noncurrent OtherAccruedLiabilitiesNoncurrent	225175000	USD
CY2011Q4	us-gaap	Other Accrued Liabilities Noncurrent OtherAccruedLiabilitiesNoncurrent	220229000	USD
CY2011Q4	amt	Deferred Loss On Settlement Of Treasury Rate Lock Net Of Tax DeferredLossOnSettlementOfTreasuryRateLockNetOfTax	-4625000	USD
CY2011Q4	amt	Deferred Gain On Settlement Of Interest Rate Swap Agreements Entered Into In Connection With Securitization Net Of Tax DeferredGainOnSettlementOfInterestRateSwapAgreementsEnteredIntoInConnectionWithSecuritizationNetOfTax	202000	USD
CY2011Q4	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	0	USD
CY2010Q4	amt	Deferred Loss On Settlement Of Treasury Rate Lock Net Of Tax DeferredLossOnSettlementOfTreasuryRateLockNetOfTax	-3354000	USD
CY2010Q4	amt	Deferred Gain On Settlement Of Interest Rate Swap Agreements Entered Into In Connection With Securitization Net Of Tax DeferredGainOnSettlementOfInterestRateSwapAgreementsEnteredIntoInConnectionWithSecuritizationNetOfTax	497000	USD
CY2010Q4	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	-2083000	USD
CY2011	us-gaap	Interest Rate Cash Flow Hedge Gain Loss Reclassified To Earnings Net InterestRateCashFlowHedgeGainLossReclassifiedToEarningsNet	100000	USD
CY2010	us-gaap	Interest Rate Cash Flow Hedge Gain Loss Reclassified To Earnings Net InterestRateCashFlowHedgeGainLossReclassifiedToEarningsNet	100000	USD
CY2011	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	47426000	USD
CY2011	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	-70755000	USD
CY2011	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	25671000	USD
CY2012	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	59847000	USD
CY2012	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	6641000	USD
CY2012	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	25056000	USD
CY2010Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	341838000	USD
CY2012Q4	amt	Estimated Undiscounted Future Cash Outlay For Asset Retirement Obligations EstimatedUndiscountedFutureCashOutlayForAssetRetirementObligations	1500000000	USD
CY2012Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	5442000	USD
CY2011Q4	us-gaap	Number Of Interest Rate Derivatives Held NumberOfInterestRateDerivativesHeld	-0	integer
CY2012Q4	us-gaap	Number Of Interest Rate Derivatives Held NumberOfInterestRateDerivativesHeld	10	integer
CY2012Q4	invest	Derivative Notional Amount DerivativeNotionalAmount	423634000
CY2012Q4	invest	Derivative Notional Amount DerivativeNotionalAmount	107256000	USD
CY2011	us-gaap	Derivative Instruments Gain Loss Recognized In Other Comprehensive Income Effective Portion Net DerivativeInstrumentsGainLossRecognizedInOtherComprehensiveIncomeEffectivePortionNet	-228000	USD
CY2011	us-gaap	Derivative Instruments Gain Loss Reclassified From Accumulated Oci Into Income Effective Portion Net DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet	-2205000	USD
CY2012	us-gaap	Derivative Instruments Gain Loss Recognized In Other Comprehensive Income Effective Portion Net DerivativeInstrumentsGainLossRecognizedInOtherComprehensiveIncomeEffectivePortionNet	-6220000	USD
CY2012	us-gaap	Derivative Instruments Gain Loss Reclassified From Accumulated Oci Into Income Effective Portion Net DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet	-1340000	USD
CY2010	us-gaap	Derivative Instruments Gain Loss Reclassified From Accumulated Oci Into Income Effective Portion Net DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet	-18294000	USD
CY2010	us-gaap	Derivative Instruments Gain Loss Recognized In Other Comprehensive Income Effective Portion Net DerivativeInstrumentsGainLossRecognizedInOtherComprehensiveIncomeEffectivePortionNet	-8798000	USD
CY2012Q4	amt	Deferred Loss On Settlement Of Treasury Rate Lock Net Of Tax DeferredLossOnSettlementOfTreasuryRateLockNetOfTax	-3827000	USD
CY2012Q4	amt	Deferred Gain On Settlement Of Interest Rate Swap Agreements Entered Into In Connection With Securitization Net Of Tax DeferredGainOnSettlementOfInterestRateSwapAgreementsEnteredIntoInConnectionWithSecuritizationNetOfTax	0	USD
CY2012Q4	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	-4815000	USD
CY2010	amt	Income Tax Provisions Derivative Financial Instruments IncomeTaxProvisionsDerivativeFinancialInstruments	100000	USD
CY2011	amt	Income Tax Provisions Derivative Financial Instruments IncomeTaxProvisionsDerivativeFinancialInstruments	100000	USD
CY2010	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	-6000000	USD
CY2011	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	-1300000	USD
CY2012	us-gaap	Derivative Instruments Loss Reclassified From Accumulated Oci Into Income Effective Portion DerivativeInstrumentsLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortion	1800000	USD
CY2012	us-gaap	Interest Rate Cash Flow Hedge Gain Loss Reclassified To Earnings Net InterestRateCashFlowHedgeGainLossReclassifiedToEarningsNet	600000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment On Derivatives Included In Net Income Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentOnDerivativesIncludedInNetIncomeBeforeTax	-4800000	USD
CY2010	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment On Derivatives Included In Net Income Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentOnDerivativesIncludedInNetIncomeBeforeTax	9500000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment On Derivatives Included In Net Income Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentOnDerivativesIncludedInNetIncomeBeforeTax	1900000	USD
CY2012	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	700000	USD
CY2012Q4	us-gaap	Investments Fair Value Disclosure InvestmentsFairValueDisclosure	6018000	USD
CY2012Q4	us-gaap	Business Acquisition Contingent Consideration At Fair Value BusinessAcquisitionContingentConsiderationAtFairValue	23711000	USD
CY2011Q4	us-gaap	Investments Fair Value Disclosure InvestmentsFairValueDisclosure	22270000	USD
CY2012Q4	us-gaap	Derivative Financial Instruments Liabilities Fair Value Disclosure DerivativeFinancialInstrumentsLiabilitiesFairValueDisclosure	5442000	USD
CY2011Q4	us-gaap	Business Acquisition Contingent Consideration At Fair Value BusinessAcquisitionContingentConsiderationAtFairValue	25617000	USD
CY2012Q4	us-gaap	Business Combination Contingent Consideration Arrangements Range Of Outcomes Value High BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueHigh	43600000	USD
CY2012	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPurchases	6653000	USD
CY2012	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements	-15716000	USD
CY2012	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings	6329000	USD
CY2012Q4	amt	Contingent Consideration Change Fx ContingentConsiderationChangeFx	828000	USD
CY2010Q4	us-gaap	Business Acquisition Contingent Consideration At Fair Value BusinessAcquisitionContingentConsiderationAtFairValue	5809000	USD
CY2011	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPurchases	19853000	USD
CY2011	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements	-5742000	USD
CY2011	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings	5634000	USD
CY2011Q4	amt	Contingent Consideration Change Fx ContingentConsiderationChangeFx	63000	USD
CY2012Q4	us-gaap	Business Combination Contingent Consideration Arrangements Range Of Outcomes Value Low BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueLow	0	USD
CY2012	us-gaap	Asset Impairment Charges AssetImpairmentCharges	21500000	USD
CY2012Q4	amt	Assets Held And Used Long Lived Fair Value Disclosure AssetsHeldAndUsedLongLivedFairValueDisclosure	5379200000	USD
CY2011	us-gaap	Asset Impairment Charges AssetImpairmentCharges	9000000	USD
CY2012Q4	amt	Assets Held And Used Long Lived Carrying Value AssetsHeldAndUsedLongLivedCarryingValue	5357700000	USD
CY2011Q4	amt	Assets Held And Used Long Lived Carrying Value AssetsHeldAndUsedLongLivedCarryingValue	4271800000	USD
CY2011Q4	amt	Assets Held And Used Long Lived Fair Value Disclosure AssetsHeldAndUsedLongLivedFairValueDisclosure	4280800000	USD
CY2012	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-18170000	USD
CY2012	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	-6321000	USD
CY2012	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	-53513000	USD
CY2012	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-13094000	USD
CY2012	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-666000	USD
CY2012	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-15540000	USD
CY2011	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-14069000	USD
CY2011	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	-19346000	USD
CY2011	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	-34813000	USD
CY2011	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-81685000	USD
CY2011	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-12001000	USD
CY2011	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	36834000	USD
CY2010	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	USD
CY2010	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	-6090000	USD
CY2010	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	11928000	USD
CY2010	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-191393000	USD
CY2010	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-14446000	USD
CY2010	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	17512000	USD
CY2011Q4	amt	Deferred Tax Benefit Due To Reit Conversion DeferredTaxBenefitDueToReitConversion	121000000	USD
CY2010	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	536188000	USD
CY2010	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	19837000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	608936000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-102041000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-86666000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	787960000	USD
CY2012	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
CY2011	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
CY2010	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
CY2010	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.03
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	0.01
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	0
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Tax Contingencies EffectiveIncomeTaxRateReconciliationTaxContingencies	-0.02
CY2010	amt	Effective Income Tax Rate Reconciliation Foreign Currency Gains EffectiveIncomeTaxRateReconciliationForeignCurrencyGains	0
CY2010	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.33
CY2011	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.25
CY2011	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.06
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	0
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	0.03
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Tax Contingencies EffectiveIncomeTaxRateReconciliationTaxContingencies	0.01
CY2011	amt	Effective Income Tax Rate Reconciliation Foreign Currency Gains EffectiveIncomeTaxRateReconciliationForeignCurrencyGains	0.01
CY2011	amt	Effective Income Tax Rate Reconciliation Reorganization Of Financing Entity EffectiveIncomeTaxRateReconciliationReorganizationOfFinancingEntity	0
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.01
CY2012	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.01
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	0
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	0.04
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Tax Contingencies EffectiveIncomeTaxRateReconciliationTaxContingencies	-0.01
CY2012	amt	Effective Income Tax Rate Reconciliation Foreign Currency Gains EffectiveIncomeTaxRateReconciliationForeignCurrencyGains	0
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.01
CY2012	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.15
CY2012	amt	Effective Income Tax Rate Deferred Tax Adjustment Due To Reit Conversion EffectiveIncomeTaxRateDeferredTaxAdjustmentDueToREITConversion	0
CY2011	amt	Effective Income Tax Rate Deferred Tax Adjustment Due To Reit Conversion EffectiveIncomeTaxRateDeferredTaxAdjustmentDueToREITConversion	-0.24
CY2010	amt	Effective Income Tax Rate Deferred Tax Adjustment Due To Reit Conversion EffectiveIncomeTaxRateDeferredTaxAdjustmentDueToREITConversion	0
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.02
CY2010	amt	Effective Income Tax Rate Reconciliation Reorganization Of Financing Entity EffectiveIncomeTaxRateReconciliationReorganizationOfFinancingEntity	-0.06
CY2012	amt	Effective Income Tax Rate Reconciliation Reorganization Of Financing Entity EffectiveIncomeTaxRateReconciliationReorganizationOfFinancingEntity	0
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	0
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	0
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	0.08
CY2012	amt	Tax Adjustment Related To Reit TaxAdjustmentRelatedToReit	-0.35
CY2012	amt	Foreign Withholding Taxes ForeignWithholdingTaxes	0.04
CY2011	amt	Foreign Withholding Taxes ForeignWithholdingTaxes	0.02
CY2011	amt	Tax Adjustment Related To Reit TaxAdjustmentRelatedToReit	0
CY2010	amt	Tax Adjustment Related To Reit TaxAdjustmentRelatedToReit	0
CY2010	amt	Foreign Withholding Taxes ForeignWithholdingTaxes	0
CY2012Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals	31561000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	0	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Current DeferredTaxLiabilitiesCurrent	2509000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	29052000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	3298000	USD
CY2012Q4	amt	Current Net Deferred Tax Assets Liabilities CurrentNetDeferredTaxAssetsLiabilities	25754000	USD
CY2012Q4	amt	Net Long Term Operating Loss Carry Forwards NetLongTermOperatingLossCarryForwards	127914000	USD
CY2012Q4	amt	Deferred Tax Deferred Rent Noncurrent DeferredTaxDeferredRentNoncurrent	18640000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	4566000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Liabilities Net Noncurrent DeferredTaxAssetsLiabilitiesNetNoncurrent	235703000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Valuation Allowance Noncurrent DeferredTaxAssetsValuationAllowanceNoncurrent	92260000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	143443000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals	17673000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	16279000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Current DeferredTaxLiabilitiesCurrent	17345000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	16607000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	517000	USD
CY2011Q4	amt	Current Net Deferred Tax Assets Liabilities CurrentNetDeferredTaxAssetsLiabilities	16090000	USD
CY2011Q4	amt	Net Long Term Operating Loss Carry Forwards NetLongTermOperatingLossCarryForwards	48962000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Asset Retirement Obligations DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAssetRetirementObligations	50131000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	26993000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	20896000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	27396000	USD
CY2011Q4	amt	Deferred Tax Deferred Rent Noncurrent DeferredTaxDeferredRentNoncurrent	9987000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	2031000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Liabilities Net Noncurrent DeferredTaxAssetsLiabilitiesNetNoncurrent	193624000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Valuation Allowance Noncurrent DeferredTaxAssetsValuationAllowanceNoncurrent	5321000	USD
CY2011Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	31500000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	221000	USD
CY2012	amt	Unrecognized Tax Benefits Increase Decrease Resulting From Foreign Currency Changes UnrecognizedTaxBenefitsIncreaseDecreaseResultingFromForeignCurrencyChanges	-439000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	4926000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	25258000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	21912000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	55924000	USD
CY2012Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	34337000	USD
CY2010Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	79012000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	1801000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	16520000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	54430000	USD
CY2011	amt	Unrecognized Tax Benefits Increase Decrease Resulting From Foreign Currency Changes UnrecognizedTaxBenefitsIncreaseDecreaseResultingFromForeignCurrencyChanges	-3550000	USD
CY2011Q4	amt	Deferred Tax Liability Depreciation And Amortization DeferredTaxLiabilityDepreciationAndAmortization	-31264000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	188303000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Asset Retirement Obligations DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAssetRetirementObligations	70797000	USD
CY2010	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	2300000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	-2900000	USD
CY2012Q4	amt	Deferred Tax Liability Depreciation And Amortization DeferredTaxLiabilityDepreciationAndAmortization	42896000	USD
CY2011Q4	us-gaap	Valuation Allowance Amount ValuationAllowanceAmount	-5838000	USD
CY2012Q4	us-gaap	Valuation Allowance Amount ValuationAllowanceAmount	-95558000	USD
CY2012	us-gaap	Employee Service Share Based Compensation Tax Benefit Realized From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitRealizedFromExerciseOfStockOptions	6900000	USD
CY2011	us-gaap	Employee Service Share Based Compensation Tax Benefit Realized From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitRealizedFromExerciseOfStockOptions	3000000	USD
CY2012Q4	amt	Deferred Tax Liability Related To Undistributed Foreign Earnings DeferredTaxLiabilityRelatedToUndistributedForeignEarnings	101000000	USD
CY2012	us-gaap	Income Tax Effects Allocated Directly To Equity Employee Stock Options IncomeTaxEffectsAllocatedDirectlyToEquityEmployeeStockOptions	300000000	USD
CY2012Q4	us-gaap	Tax Credit Carryforward Amount TaxCreditCarryforwardAmount	2900000	USD
CY2012Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	30600000	USD
CY2011Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	34500000	USD
CY2012Q4	amt	Impact Of Uncertain Tax Positions Maximum ImpactOfUncertainTaxPositionsMaximum	1300000	USD
CY2012Q4	amt	Impact Of Uncertain Tax Positions Minimum ImpactOfUncertainTaxPositionsMinimum	0	USD
CY2011Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	38886000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	1037000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2011	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	467000	USD
CY2009Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	87975000	USD
CY2010	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	10101000	USD
CY2010	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	11109000	USD
CY2010	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	30855000	USD
CY2010	amt	Unrecognized Tax Benefits Increase Decrease Resulting From Foreign Currency Changes UnrecognizedTaxBenefitsIncreaseDecreaseResultingFromForeignCurrencyChanges	735000	USD
CY2010	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	53000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	9100000	USD
CY2012Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	28700000	USD
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Plan Modification Incremental Compensation Cost ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationIncrementalCompensationCost	3000000	USD
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized	18600000	shares
CY2005Q3	us-gaap	Class Of Warrant Or Right Exercise Price Of Warrants Or Rights ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights	32
CY2005Q3	us-gaap	Class Of Warrant Or Right Number Of Securities Called By Warrants Or Rights ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights	3.575	shares
CY2005Q3	amt	Total Number Of Shares Of Common Stock In Lieu Of Warrants TotalNumberOfSharesOfCommonStockInLieuOfWarrants	6800000	shares
	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	243900000	USD
	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	4300000	shares
CY2013Q1	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	15790	shares
	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	4300000	shares
CY2012	amt	Remaining Stock Value Of Buyback RemainingStockValueOfBuyback	1300000000	USD
CY2012	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	872005	shares
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CY2013Q1	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	1200000	USD
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Period1 ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1	P4Y0M0D
CY2012	amt	Share Based Compensation Arrangement By Share Based Payment Award Award Life ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardLife	P10Y
CY2012Q4	amt	Distributions Payable Upon Vesting Rsu DistributionsPayableUponVestingRsu	700000	USD
CY2012Q4	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Outstanding Options ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions	5829945	shares
CY2012Q4	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Outstanding Options Weighted Average Exercise Price Beginning Balance1 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1	44.09
CY2012Q4	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Exercisable Options ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions	3170504	shares
CY2012Q4	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Exercisable Options Weighted Average Exercise Price1 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1	37.07
CY2012	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Outstanding Options Weighted Average Remaining Contractual Term2 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2	P6Y4M29D
CY2012	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Lower Range Limit ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit	5.51
CY2012	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Upper Range Limit ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit	71.50
CY2012	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	2200000	USD
CY2011	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	3100000	USD
CY2010	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	0	USD
CY2010	us-gaap	Asset Impairment Charges AssetImpairmentCharges	12200000	USD
CY2011	us-gaap	Gain Loss On Sale Of Other Assets GainLossOnSaleOfOtherAssets	8400000	USD
CY2010	us-gaap	Gain Loss On Sale Of Other Assets GainLossOnSaleOfOtherAssets	4500000	USD
CY2012	us-gaap	Gain Loss On Sale Of Other Assets GainLossOnSaleOfOtherAssets	12900000	USD
CY2012	us-gaap	Gain Loss On Contract Termination GainLossOnContractTermination	10800000	USD
CY2012	us-gaap	Gain Loss On Sales Of Assets And Asset Impairment Charges GainLossOnSalesOfAssetsAndAssetImpairmentCharges	34400000	USD
CY2011	us-gaap	Gain Loss On Sales Of Assets And Asset Impairment Charges GainLossOnSalesOfAssetsAndAssetImpairmentCharges	17400000	USD
CY2010	us-gaap	Gain Loss On Sales Of Assets And Asset Impairment Charges GainLossOnSalesOfAssetsAndAssetImpairmentCharges	16700000	USD
CY2012	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	637283000	USD
CY2011	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	396462000	USD
CY2010	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	372906000	USD
CY2012Q1	us-gaap	Net Income Loss NetIncomeLoss	221306000	USD
CY2012Q1	amt	Cost Of Operations CostOfOperations	170985000	USD
CY2012Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.56
CY2012Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.56
CY2012Q4	us-gaap	Profit Loss ProfitLoss	118153000	USD
CY2012Q3	us-gaap	Profit Loss ProfitLoss	231825000	USD
CY2012Q2	us-gaap	Profit Loss ProfitLoss	33689000	USD
CY2012Q1	us-gaap	Profit Loss ProfitLoss	210358000	USD
CY2011Q1	us-gaap	Profit Loss ProfitLoss	91961000	USD
CY2011Q2	us-gaap	Profit Loss ProfitLoss	113171000	USD
CY2011Q3	us-gaap	Profit Loss ProfitLoss	-19726000	USD
CY2011Q4	us-gaap	Profit Loss ProfitLoss	196434000	USD
CY2012Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.12
CY2012	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	4515000	shares
CY2011	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	4484000	shares
CY2010	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	2920000	shares
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	364427000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	352624000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	343478000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	328826000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	317533000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	2878866000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	4585754000	USD
CY2011	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	366100000	USD
CY2012	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	419000000	USD
CY2010	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	300000000	USD
CY2012Q4	us-gaap	Capital Leases Future Minimum Payments Due Current CapitalLeasesFutureMinimumPaymentsDueCurrent	8242000	USD
CY2012Q4	us-gaap	Capital Leases Future Minimum Payments Due In Two Years CapitalLeasesFutureMinimumPaymentsDueInTwoYears	7316000	USD
CY2012Q4	us-gaap	Capital Leases Future Minimum Payments Due In Three Years CapitalLeasesFutureMinimumPaymentsDueInThreeYears	5377000	USD
CY2012Q4	us-gaap	Capital Leases Future Minimum Payments Due In Four Years CapitalLeasesFutureMinimumPaymentsDueInFourYears	5485000	USD
CY2012Q4	us-gaap	Capital Leases Future Minimum Payments Due In Five Years CapitalLeasesFutureMinimumPaymentsDueInFiveYears	4897000	USD
CY2012Q4	us-gaap	Capital Leases Future Minimum Payments Due Thereafter CapitalLeasesFutureMinimumPaymentsDueThereafter	164520000	USD
CY2012Q4	us-gaap	Capital Leases Future Minimum Payments Due CapitalLeasesFutureMinimumPaymentsDue	195837000	USD
CY2012Q4	us-gaap	Capital Leases Future Minimum Payments Interest Included In Payments CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments	138544000	USD
CY2012Q4	us-gaap	Capital Leases Future Minimum Payments Present Value Of Net Minimum Payments CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments	57293000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Receivable Current OperatingLeasesFutureMinimumPaymentsReceivableCurrent	2519271000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Two Years OperatingLeasesFutureMinimumPaymentsReceivableInTwoYears	2464510000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Three Years OperatingLeasesFutureMinimumPaymentsReceivableInThreeYears	2461416000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Four Years OperatingLeasesFutureMinimumPaymentsReceivableInFourYears	2370434000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Five Years OperatingLeasesFutureMinimumPaymentsReceivableInFiveYears	2264910000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Receivable Thereafter OperatingLeasesFutureMinimumPaymentsReceivableThereafter	8142544000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Receivable OperatingLeasesFutureMinimumPaymentsReceivable	20223085000	USD
CY2011	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	8507000	USD
CY2011	us-gaap	Capital Lease Obligations Incurred CapitalLeaseObligationsIncurred	6800000	USD
CY2012Q4	amt	Fair Value Of Debt Assumed Through Acquisitions FairValueOfDebtAssumedThroughAcquisitions	0	USD
CY2012	us-gaap	Interest Paid InterestPaid	366458000	USD
CY2012	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	69277000	USD
CY2012	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	-10244000	USD
CY2012	us-gaap	Capital Lease Obligations Incurred CapitalLeaseObligationsIncurred	19219000	USD
CY2011	us-gaap	Interest Paid InterestPaid	274234000	USD
CY2011	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	53909000	USD
CY2010	us-gaap	Interest Paid InterestPaid	219408000	USD
CY2010	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	36381000	USD
CY2010	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	11253000	USD
CY2010	us-gaap	Capital Lease Obligations Incurred CapitalLeaseObligationsIncurred	2200000	USD
CY2011Q4	amt	Fair Value Of Debt Assumed Through Acquisitions FairValueOfDebtAssumedThroughAcquisitions	209321000	USD
CY2010Q4	amt	Fair Value Of Debt Assumed Through Acquisitions FairValueOfDebtAssumedThroughAcquisitions	0	USD
CY2010	us-gaap	Concentration Risk Percentage1 ConcentrationRiskPercentage1	0.10
CY2011	us-gaap	Concentration Risk Percentage1 ConcentrationRiskPercentage1	0.10
CY2012	us-gaap	Concentration Risk Percentage1 ConcentrationRiskPercentage1	0.10
CY2012	amt	Segment Reporting Number Of Customers Which Account For10 Percent Or More Of Revenue SegmentReportingNumberOfCustomersWhichAccountFor10PercentOrMoreOfRevenue	3	customers
CY2011	amt	Segment Reporting Number Of Customers Which Account For10 Percent Or More Of Revenue SegmentReportingNumberOfCustomersWhichAccountFor10PercentOrMoreOfRevenue	3	customers
CY2010	amt	Segment Reporting Number Of Customers Which Account For10 Percent Or More Of Revenue SegmentReportingNumberOfCustomersWhichAccountFor10PercentOrMoreOfRevenue	3	customers
CY2012	amt	Segment Operating Expenses SegmentOperatingExpenses	720718000	USD
CY2012	amt	Segment Reporting Segment Gross Profit SegmentReportingSegmentGrossProfit	2169500000	USD
CY2012	amt	Segment Selling General Administration And Development Expenses SegmentSellingGeneralAdministrationAndDevelopmentExpenses	187986000	USD
CY2012	amt	Segment Operating Profit SegmentOperatingProfit	1981514000	USD
CY2012	us-gaap	Other Selling General And Administrative Expense OtherSellingGeneralAndAdministrativeExpense	89093000	USD
CY2012	us-gaap	Other Expenses OtherExpenses	494868000	USD
CY2011	amt	Segment Operating Expenses SegmentOperatingExpenses	618627000	USD
CY2011	amt	Segment Reporting Segment Gross Profit SegmentReportingSegmentGrossProfit	1839119000	USD
CY2011	amt	Segment Selling General Administration And Development Expenses SegmentSellingGeneralAdministrationAndDevelopmentExpenses	167011000	USD
CY2011	amt	Segment Operating Profit SegmentOperatingProfit	1672108000	USD
CY2011	us-gaap	Other Selling General And Administrative Expense OtherSellingGeneralAndAdministrativeExpense	76705000	USD
CY2011	us-gaap	Other Expenses OtherExpenses	485554000	USD
CY2010	amt	Segment Operating Expenses SegmentOperatingExpenses	474586000	USD
CY2010	amt	Segment Reporting Segment Gross Profit SegmentReportingSegmentGrossProfit	1524961000	USD
CY2010	amt	Segment Selling General Administration And Development Expenses SegmentSellingGeneralAdministrationAndDevelopmentExpenses	114484000	USD
CY2010	amt	Segment Operating Profit SegmentOperatingProfit	1410477000	USD
CY2010	us-gaap	Other Selling General And Administrative Expense OtherSellingGeneralAndAdministrativeExpense	62730000	USD
CY2010	us-gaap	Other Expenses OtherExpenses	278441000	USD
CY2012	us-gaap	Factors Used To Identify Entitys Reportable Segments FactorsUsedToIdentifyEntitysReportableSegments	3
CY2012Q4	amt	Entity Wide Geographic Areas Long Lived Assets EntityWideGeographicAreasLongLivedAssets	11817094000	USD
CY2011Q4	amt	Entity Wide Geographic Areas Long Lived Assets EntityWideGeographicAreasLongLivedAssets	10153065000	USD
CY2012Q1	us-gaap	Sales Revenue Net SalesRevenueNet	696517000	USD
CY2012Q4	us-gaap	Net Income Loss NetIncomeLoss	135679000	USD
CY2012Q4	amt	Cost Of Operations CostOfOperations	194206000	USD
CY2012Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	279235000	USD
CY2012Q4	us-gaap	Sales Revenue Net SalesRevenueNet	768374000	USD
CY2012Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.34
CY2012Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.34
CY2012	amt	Cost Of Operations CostOfOperations	722479000	USD
CY2011	amt	Cost Of Operations CostOfOperations	620956000	USD
CY2011Q1	us-gaap	Sales Revenue Net SalesRevenueNet	562695000	USD
CY2011Q1	amt	Cost Of Operations CostOfOperations	135328000	USD
CY2011Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	218300000	USD
CY2011Q1	us-gaap	Net Income Loss NetIncomeLoss	91842000	USD
CY2011Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.23
CY2011Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.23
CY2011Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.29
CY2011Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.29
CY2011Q2	us-gaap	Sales Revenue Net SalesRevenueNet	597235000	USD
CY2011Q2	amt	Cost Of Operations CostOfOperations	151077000	USD
CY2011Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	225789000	USD
CY2011Q2	us-gaap	Net Income Loss NetIncomeLoss	115211000	USD
CY2011Q3	us-gaap	Sales Revenue Net SalesRevenueNet	630403000	USD
CY2011Q3	amt	Cost Of Operations CostOfOperations	168933000	USD
CY2011Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	228305000	USD
CY2011Q3	us-gaap	Net Income Loss NetIncomeLoss	-15701000	USD
CY2011Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.04
CY2011Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.04
CY2011Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.52
CY2011Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.52
CY2011Q4	us-gaap	Net Income Loss NetIncomeLoss	205110000	USD
CY2011Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	247738000	USD
CY2011Q4	amt	Cost Of Operations CostOfOperations	165618000	USD
CY2011Q4	us-gaap	Sales Revenue Net SalesRevenueNet	653199000	USD
CY2012Q3	us-gaap	Sales Revenue Net SalesRevenueNet	713335000	USD
CY2012Q3	amt	Cost Of Operations CostOfOperations	184904000	USD
CY2012Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	295552000	USD
CY2012Q3	us-gaap	Net Income Loss NetIncomeLoss	232089000	USD
CY2012Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.58
CY2012Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.59
CY2012Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.12
CY2012Q2	amt	Cost Of Operations CostOfOperations	172384000	USD
CY2012Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	270486000	USD
CY2012Q2	us-gaap	Net Income Loss NetIncomeLoss	48209000	USD
CY2012Q2	us-gaap	Sales Revenue Net SalesRevenueNet	697734000	USD
CY2012Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	274446000	USD
CY2012	us-gaap	Real Estate And Accumulated Depreciation Description Of Property RealEstateAndAccumulatedDepreciationDescriptionOfProperty	54,604 sites
CY2012Q4	us-gaap	Real Estate And Accumulated Depreciation Amount Of Encumbrances RealEstateAndAccumulatedDepreciationAmountOfEncumbrances	2120804000	USD
CY2012Q4	us-gaap	Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements	0	USD
CY2012Q4	amt	Real Estate And Accumulated Depreciation Initial Cost RealEstateAndAccumulatedDepreciationInitialCost	0	USD
CY2012Q4	amt	Real Estate And Accumulated Depreciation Carrying Amount RealEstateAndAccumulatedDepreciationCarryingAmount	8316547000	USD
CY2012Q4	us-gaap	Real Estate And Accumulated Depreciation Accumulated Depreciation RealEstateAndAccumulatedDepreciationAccumulatedDepreciation	-2968230000	USD
CY2012	amt	Real Estate Date Of Construction RealEstateDateOfConstruction	Various
CY2012	amt	Real Estate Date Acquired RealEstateDateAcquired	Various
CY2012	amt	Real Estate Life Used For Depreciation RealEstateLifeUsedForDepreciation	Up to 20 years
CY2012Q4	amt	Percentage Of Gross Amounts Maximum PercentageOfGrossAmountsMaximum	0.0500
CY2011Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	7192641000	USD
CY2012	us-gaap	Real Estate Other Acquisitions RealEstateOtherAcquisitions	739144000	USD
CY2012	amt	Discretionary Capital Projects DiscretionaryCapitalProjects	217935000	USD
CY2012	amt	Discretionary Ground Lease Purchases DiscretionaryGroundLeasePurchases	93990000	USD
CY2012	amt	Redevelopment Capital Expenditures RedevelopmentCapitalExpenditures	67309000	USD
CY2012	us-gaap	Real Estate Improvements RealEstateImprovements	70453000	USD
CY2012	us-gaap	Real Estate Other Additions RealEstateOtherAdditions	30813000	USD
CY2012	amt	Real Estate Period Additions To Cost RealEstatePeriodAdditionsToCost	1219644000	USD
CY2012	us-gaap	Real Estate Cost Of Real Estate Sold RealEstateCostOfRealEstateSold	-15288000	USD
CY2012	us-gaap	Real Estate Other Deductions RealEstateOtherDeductions	-80450000	USD
CY2012	amt	Real Estate Period Deductions To Cost RealEstatePeriodDeductionsToCost	-95738000	USD
CY2012Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	8316547000	USD
CY2012	us-gaap	Real Estate Acquisitions Through Foreclosures RealEstateAcquisitionsThroughForeclosures	0	USD
CY2011Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	-2646927000	USD
CY2012	us-gaap	Real Estate Accumulated Depreciation Other Additions RealEstateAccumulatedDepreciationOtherAdditions	-253000	USD
CY2012	us-gaap	Real Estate Accumulated Depreciation Depreciation Expense RealEstateAccumulatedDepreciationDepreciationExpense	-344778000	USD
CY2012	amt	Real Estate Period Additions To Accumulated Depreciation RealEstatePeriodAdditionsToAccumulatedDepreciation	-345031000	USD
CY2012	us-gaap	Real Estate Accumulated Depreciation Real Estate Sold RealEstateAccumulatedDepreciationRealEstateSold	10920000	USD
CY2012	us-gaap	Real Estate Accumulated Depreciation Other Deductions RealEstateAccumulatedDepreciationOtherDeductions	12808000	USD
CY2012	amt	Real Estate Period Deductions To Accumulated Depreciation RealEstatePeriodDeductionsToAccumulatedDepreciation	23728000	USD
CY2012Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	-2968230000	USD

Files In Submission

Name	View Source	Status
0001193125-13-077821-index-headers.html	Edgar Link	pending
0001193125-13-077821-index.html	Edgar Link	pending
0001193125-13-077821.txt	Edgar Link	pending
0001193125-13-077821-xbrl.zip	Edgar Link	pending
amt-20121231.xml	Edgar Link	completed
amt-20121231.xsd	Edgar Link	pending
amt-20121231_cal.xml	Edgar Link	unprocessable
amt-20121231_def.xml	Edgar Link	unprocessable
amt-20121231_lab.xml	Edgar Link	unprocessable
amt-20121231_pre.xml	Edgar Link	unprocessable
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Financial_Report.xls	Edgar Link	pending
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$AMT
AMERICAN TOWER CORP /MA/ Stock $amt

2012 Form 10-K Financial Statement

#000119312513077821 Filed on February 27, 2013

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$AMT AMERICAN TOWER CORP /MA/ Stock $amt

2012 Form 10-K Financial Statement

#000119312513077821 Filed on February 27, 2013

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$AMT
AMERICAN TOWER CORP /MA/ Stock $amt