10-Q Filing

AMERICAN TOWER CORP /MA/ CIK: 1053507 Q2 2017

Filing Information

Form Type	10-Q
Accession Number	`0001053507-17-000045`
Period End Date	20170630
Filing Date	20170727
Fiscal Year	2017
Fiscal Period	Q2
XBRL Instance	amt-20170630.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 87 Income Statement 124 Cash Flow Statement 84 Stockholders Equity 42 Comprehensive Income 44

Balance Sheet 87 line items

Line Item	Tag	Value	Unit	Period
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$770.02M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$410.54M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$787.16M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$320.69M	USD	Point-in-time
Restricted cash	`RestrictedCashAndCashEquivalentsAtCarryingValue`	$143.28M	USD	Point-in-time
Restricted cash	`RestrictedCashAndCashEquivalentsAtCarryingValue`	$149.28M	USD	Point-in-time
Short-term investments	`ShortTermInvestments`	$4.03M	USD	Point-in-time
Short-term investments	`ShortTermInvestments`	$1.01M	USD	Point-in-time
Accounts receivable, net	`AccountsReceivableNetCurrent`	$308.37M	USD	Point-in-time
Accounts receivable, net	`AccountsReceivableNetCurrent`	$322.06M	USD	Point-in-time
Common stock, par value (in dollars per share)	`CommonStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Common stock, par value (in dollars per share)	`CommonStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Prepaid and other current assets	`PrepaidExpenseAndOtherAssetsCurrent`	$441.03M	USD	Point-in-time
Prepaid and other current assets	`PrepaidExpenseAndOtherAssetsCurrent`	$566.39M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$1.69B	USD	Point-in-time
Total current assets	`AssetsCurrent`	$1.80B	USD	Point-in-time
Common stock, shares authorized	`CommonStockSharesAuthorized`	1.00B	shares	Point-in-time
Common stock, shares authorized	`CommonStockSharesAuthorized`	1.00B	shares	Point-in-time
Common stock, shares issued	`CommonStockSharesIssued`	437.18M	shares	Point-in-time
Common stock, shares issued	`CommonStockSharesIssued`	429.91M	shares	Point-in-time
PROPERTY AND EQUIPMENT, net	`PropertyPlantAndEquipmentNet`	$10.52B	USD	Point-in-time
PROPERTY AND EQUIPMENT, net	`PropertyPlantAndEquipmentNet`	$10.73B	USD	Point-in-time
Common stock, shares outstanding	`CommonStockSharesOutstanding`	427.10M	shares	Point-in-time
Common stock, shares outstanding	`CommonStockSharesOutstanding`	429.17M	shares	Point-in-time
GOODWILL	`Goodwill`	$5.07B	USD	Point-in-time
GOODWILL	`Goodwill`	$5.37B	USD	Point-in-time
Treasury stock, shares	`TreasuryStockShares`	2.81M	shares	Point-in-time
Treasury stock, shares	`TreasuryStockShares`	8.01M	shares	Point-in-time
OTHER INTANGIBLE ASSETS, net	`IntangibleAssetsNetExcludingGoodwill`	$11.73B	USD	Point-in-time
OTHER INTANGIBLE ASSETS, net	`IntangibleAssetsNetExcludingGoodwill`	$11.27B	USD	Point-in-time
DEFERRED TAX ASSET	`DeferredIncomeTaxAssetsNet`	$213.58M	USD	Point-in-time
DEFERRED TAX ASSET	`DeferredIncomeTaxAssetsNet`	$195.68M	USD	Point-in-time
DEFERRED RENT ASSET	`DeferredRentReceivablesNetNoncurrent`	$1.29B	USD	Point-in-time
DEFERRED RENT ASSET	`DeferredRentReceivablesNetNoncurrent`	$1.41B	USD	Point-in-time
NOTES RECEIVABLE AND OTHER NON-CURRENT ASSETS	`OtherAssetsNoncurrent`	$841.52M	USD	Point-in-time
NOTES RECEIVABLE AND OTHER NON-CURRENT ASSETS	`OtherAssetsNoncurrent`	$888.85M	USD	Point-in-time
TOTAL	`Assets`	$30.88B	USD	Point-in-time
TOTAL	`Assets`	$30.74B	USD	Point-in-time
TOTAL	`Assets`	$32.14B	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$118.67M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$102.73M	USD	Point-in-time
Accrued expenses	`AccruedLiabilitiesCurrent`	$727.97M	USD	Point-in-time
Accrued expenses	`AccruedLiabilitiesCurrent`	$620.56M	USD	Point-in-time
Distributions payable	`DividendsPayableCurrent`	$277.77M	USD	Point-in-time
Distributions payable	`DividendsPayableCurrent`	$250.55M	USD	Point-in-time
Accrued interest	`InterestPayableCurrent`	$154.93M	USD	Point-in-time
Accrued interest	`InterestPayableCurrent`	$157.30M	USD	Point-in-time
Current portion of long-term obligations	`LongTermDebtCurrent`	$238.81M	USD	Point-in-time
Current portion of long-term obligations	`LongTermDebtCurrent`	$1.73B	USD	Point-in-time
Unearned revenue	`DeferredRevenueCurrent`	$245.39M	USD	Point-in-time
Unearned revenue	`DeferredRevenueCurrent`	$283.49M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$3.28B	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$1.63B	USD	Point-in-time
LONG-TERM OBLIGATIONS	`LongTermDebtAndCapitalLeaseObligations`	$18.29B	USD	Point-in-time
LONG-TERM OBLIGATIONS	`LongTermDebtAndCapitalLeaseObligations`	$17.51B	USD	Point-in-time
ASSET RETIREMENT OBLIGATIONS	`AssetRetirementObligation`	$965.51M	USD	Point-in-time
ASSET RETIREMENT OBLIGATIONS	`AssetRetirementObligation`	$1.03B	USD	Point-in-time
DEFERRED TAX LIABILITY	`DeferredIncomeTaxLiabilitiesNet`	$777.57M	USD	Point-in-time
DEFERRED TAX LIABILITY	`DeferredIncomeTaxLiabilitiesNet`	$950.30M	USD	Point-in-time
OTHER NON-CURRENT LIABILITIES	`OtherLiabilitiesNoncurrent`	$1.17B	USD	Point-in-time
OTHER NON-CURRENT LIABILITIES	`OtherLiabilitiesNoncurrent`	$1.14B	USD	Point-in-time
Total liabilities	`Liabilities`	$22.81B	USD	Point-in-time
Total liabilities	`Liabilities`	$23.94B	USD	Point-in-time
COMMITMENTS AND CONTINGENCIES	`CommitmentsAndContingencies`	-	USD	Point-in-time
COMMITMENTS AND CONTINGENCIES	`CommitmentsAndContingencies`	-	USD	Point-in-time
REDEEMABLE NONCONTROLLING INTERESTS	`RedeemableNoncontrollingInterestEquityCarryingAmount`	$1.09B	USD	Point-in-time
REDEEMABLE NONCONTROLLING INTERESTS	`RedeemableNoncontrollingInterestEquityCarryingAmount`	$1.16B	USD	Point-in-time
Common stock: $.01 par value; 1,000,000,000 shares authorized; 437,184,947 and 429,912,536 shares issued; and 429,174,983 and 427,102,510 shares outstanding, respectively	`CommonStockValue`	$4.30M	USD	Point-in-time
Common stock: $.01 par value; 1,000,000,000 shares authorized; 437,184,947 and 429,912,536 shares issued; and 429,174,983 and 427,102,510 shares outstanding, respectively	`CommonStockValue`	$4.37M	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapital`	$10.17B	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapital`	$10.04B	USD	Point-in-time
Distributions in excess of earnings	`RetainedEarningsAccumulatedDeficit`	$-1.08B	USD	Point-in-time
Distributions in excess of earnings	`RetainedEarningsAccumulatedDeficit`	$-989.15M	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-1.85B	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-2.00B	USD	Point-in-time
Treasury stock (8,009,964 and 2,810,026 shares at cost, respectively)	`TreasuryStockValue`	$207.74M	USD	Point-in-time
Treasury stock (8,009,964 and 2,810,026 shares at cost, respectively)	`TreasuryStockValue`	$849.06M	USD	Point-in-time
Total American Tower Corporation equity	`StockholdersEquity`	$6.48B	USD	Point-in-time
Total American Tower Corporation equity	`StockholdersEquity`	$6.76B	USD	Point-in-time
Noncontrolling interests	`MinorityInterest`	$562.41M	USD	Point-in-time
Noncontrolling interests	`MinorityInterest`	$212.31M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$7.05B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$6.84B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$6.71B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$6.98B	USD	Point-in-time
TOTAL	`LiabilitiesAndStockholdersEquity`	$30.88B	USD	Point-in-time
TOTAL	`LiabilitiesAndStockholdersEquity`	$32.14B	USD	Point-in-time

Income Statement 124 line items

Line Item	Tag	Value	Unit	Period
Property	`OperatingLeasesIncomeStatementLeaseRevenue`	$3.23B	USD	2 Qtrs
Property	`OperatingLeasesIncomeStatementLeaseRevenue`	$1.64B	USD	1 Quarter
Property	`OperatingLeasesIncomeStatementLeaseRevenue`	$1.43B	USD	1 Quarter
Property	`OperatingLeasesIncomeStatementLeaseRevenue`	$2.69B	USD	2 Qtrs
Services	`SalesRevenueServicesNet`	$46.43M	USD	2 Qtrs
Services	`SalesRevenueServicesNet`	$24.26M	USD	1 Quarter
Services	`SalesRevenueServicesNet`	$37.43M	USD	2 Qtrs
Services	`SalesRevenueServicesNet`	$16.04M	USD	1 Quarter
Total operating revenues	`SalesRevenueNet`	$1.44B	USD	1 Quarter
Total operating revenues	`SalesRevenueNet`	$2.73B	USD	2 Qtrs
Total operating revenues	`SalesRevenueNet`	$3.28B	USD	2 Qtrs
Total operating revenues	`SalesRevenueNet`	$1.66B	USD	1 Quarter
Property (including stock-based compensation expense of $645, $392, $1,300 and $899, respectively)	`DirectCostsOfLeasedAndRentedPropertyOrEquipment`	$794.86M	USD	2 Qtrs
Property (including stock-based compensation expense of $645, $392, $1,300 and $899, respectively)	`DirectCostsOfLeasedAndRentedPropertyOrEquipment`	$993.40M	USD	2 Qtrs
Property (including stock-based compensation expense of $645, $392, $1,300 and $899, respectively)	`DirectCostsOfLeasedAndRentedPropertyOrEquipment`	$507.23M	USD	1 Quarter
Property (including stock-based compensation expense of $645, $392, $1,300 and $899, respectively)	`DirectCostsOfLeasedAndRentedPropertyOrEquipment`	$452.57M	USD	1 Quarter
Services (including stock-based compensation expense of $201, $255, $424 and $406, respectively)	`CostOfServices`	$16.49M	USD	2 Qtrs
Services (including stock-based compensation expense of $201, $255, $424 and $406, respectively)	`CostOfServices`	$7.14M	USD	1 Quarter
Services (including stock-based compensation expense of $201, $255, $424 and $406, respectively)	`CostOfServices`	$16.30M	USD	2 Qtrs
Services (including stock-based compensation expense of $201, $255, $424 and $406, respectively)	`CostOfServices`	$9.95M	USD	1 Quarter
Depreciation, amortization and accretion	`DepreciationAmortizationAndAccretionNet`	$817.50M	USD	2 Qtrs
Depreciation, amortization and accretion	`DepreciationAmortizationAndAccretionNet`	$739.40M	USD	2 Qtrs
Depreciation, amortization and accretion	`DepreciationAmortizationAndAccretionNet`	$397.76M	USD	1 Quarter
Depreciation, amortization and accretion	`DepreciationAmortizationAndAccretionNet`	$396.36M	USD	1 Quarter
Selling, general, administrative and development expense (including stock-based compensation expense of $24,892, $21,260, $60,236 and $48,681, respectively)	`SellingGeneralAndAdministrativeExpense`	$138.23M	USD	1 Quarter
Selling, general, administrative and development expense (including stock-based compensation expense of $24,892, $21,260, $60,236 and $48,681, respectively)	`SellingGeneralAndAdministrativeExpense`	$153.15M	USD	1 Quarter
Selling, general, administrative and development expense (including stock-based compensation expense of $24,892, $21,260, $60,236 and $48,681, respectively)	`SellingGeneralAndAdministrativeExpense`	$317.94M	USD	2 Qtrs
Selling, general, administrative and development expense (including stock-based compensation expense of $24,892, $21,260, $60,236 and $48,681, respectively)	`SellingGeneralAndAdministrativeExpense`	$273.55M	USD	2 Qtrs
Other operating expenses	`OtherCostAndExpenseOperating`	$18.84M	USD	1 Quarter
Other operating expenses	`OtherCostAndExpenseOperating`	$25.05M	USD	2 Qtrs
Stock-based compensation expense	`ShareBasedCompensation`	$21.91M	USD	1 Quarter
Stock-based compensation expense	`ShareBasedCompensation`	$25.74M	USD	1 Quarter
Stock-based compensation expense	`ShareBasedCompensation`	$61.96M	USD	2 Qtrs
Other operating expenses	`OtherCostAndExpenseOperating`	$22.51M	USD	2 Qtrs
Stock-based compensation expense	`ShareBasedCompensation`	$49.99M	USD	2 Qtrs
Other operating expenses	`OtherCostAndExpenseOperating`	$13.71M	USD	1 Quarter
Interest expense	`InterestExpense`	$187.03M	USD	1 Quarter
Interest expense	`InterestExpense`	$340.92M	USD	2 Qtrs
Interest expense	`InterestExpense`	$181.04M	USD	1 Quarter
Total operating expenses	`CostsAndExpenses`	$1.09B	USD	1 Quarter
Total operating expenses	`CostsAndExpenses`	$1.85B	USD	2 Qtrs
Interest expense	`InterestExpense`	$370.72M	USD	2 Qtrs
Total operating expenses	`CostsAndExpenses`	$2.17B	USD	2 Qtrs
Total operating expenses	`CostsAndExpenses`	$1.01B	USD	1 Quarter
Unrealized foreign currency gains (losses)	`ForeignCurrencyTransactionGainLossUnrealized`	$35.74M	USD	2 Qtrs
Unrealized foreign currency gains (losses)	`ForeignCurrencyTransactionGainLossUnrealized`	$7.79M	USD	1 Quarter
Unrealized foreign currency gains (losses)	`ForeignCurrencyTransactionGainLossUnrealized`	$-24.59M	USD	1 Quarter
Unrealized foreign currency gains (losses)	`ForeignCurrencyTransactionGainLossUnrealized`	$4.78M	USD	2 Qtrs
OPERATING INCOME	`OperatingIncomeLoss`	$432.81M	USD	1 Quarter
OPERATING INCOME	`OperatingIncomeLoss`	$576.91M	USD	1 Quarter
OPERATING INCOME	`OperatingIncomeLoss`	$884.66M	USD	2 Qtrs
OPERATING INCOME	`OperatingIncomeLoss`	$1.11B	USD	2 Qtrs
Interest income, TV Azteca, net of interest expense of $291, $284, $582 and $567, respectively	`InterestIncomeExpenseNonoperatingNet`	$5.47M	USD	2 Qtrs
Interest income, TV Azteca, net of interest expense of $291, $284, $582 and $567, respectively	`InterestIncomeExpenseNonoperatingNet`	$2.75M	USD	1 Quarter
Interest income, TV Azteca, net of interest expense of $291, $284, $582 and $567, respectively	`InterestIncomeExpenseNonoperatingNet`	$2.77M	USD	1 Quarter
Interest income, TV Azteca, net of interest expense of $291, $284, $582 and $567, respectively	`InterestIncomeExpenseNonoperatingNet`	$5.46M	USD	2 Qtrs
Interest income	`InterestIncomeOther`	$18.24M	USD	2 Qtrs
Interest income	`InterestIncomeOther`	$6.47M	USD	1 Quarter
Interest income	`InterestIncomeOther`	$8.31M	USD	1 Quarter
Interest income	`InterestIncomeOther`	$10.00M	USD	2 Qtrs
Interest expense	`InterestExpense`	$187.03M	USD	1 Quarter
Interest expense	`InterestExpense`	$340.92M	USD	2 Qtrs
Interest expense	`InterestExpense`	$181.04M	USD	1 Quarter
Interest expense	`InterestExpense`	$370.72M	USD	2 Qtrs
(Loss) gain on retirement of long-term obligations	`GainsLossesOnExtinguishmentOfDebt`	$-274.00K	USD	1 Quarter
(Loss) gain on retirement of long-term obligations	`GainsLossesOnExtinguishmentOfDebt`	$830.00K	USD	2 Qtrs
(Loss) gain on retirement of long-term obligations	`GainsLossesOnExtinguishmentOfDebt`	$-55.71M	USD	2 Qtrs
(Loss) gain on retirement of long-term obligations	`GainsLossesOnExtinguishmentOfDebt`	$830.00K	USD	1 Quarter
Other income (expense) (including unrealized foreign currency gains (losses) of $7,785, ($24,585), $35,736 and $4,777, respectively)	`OtherNonoperatingIncomeExpense`	$-13.63M	USD	2 Qtrs
Other income (expense) (including unrealized foreign currency gains (losses) of $7,785, ($24,585), $35,736 and $4,777, respectively)	`OtherNonoperatingIncomeExpense`	$-25.84M	USD	1 Quarter
Other income (expense) (including unrealized foreign currency gains (losses) of $7,785, ($24,585), $35,736 and $4,777, respectively)	`OtherNonoperatingIncomeExpense`	$41.08M	USD	2 Qtrs
Other income (expense) (including unrealized foreign currency gains (losses) of $7,785, ($24,585), $35,736 and $4,777, respectively)	`OtherNonoperatingIncomeExpense`	$11.78M	USD	1 Quarter
Total other expense	`NonoperatingIncomeExpense`	$-338.25M	USD	2 Qtrs
Total other expense	`NonoperatingIncomeExpense`	$-196.83M	USD	1 Quarter
Total other expense	`NonoperatingIncomeExpense`	$-361.64M	USD	2 Qtrs
Total other expense	`NonoperatingIncomeExpense`	$-164.44M	USD	1 Quarter
INCOME FROM CONTINUING OPERATIONS BEFORE INCOME TAXES	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$412.47M	USD	1 Quarter
INCOME FROM CONTINUING OPERATIONS BEFORE INCOME TAXES	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$546.40M	USD	2 Qtrs
INCOME FROM CONTINUING OPERATIONS BEFORE INCOME TAXES	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$235.97M	USD	1 Quarter
INCOME FROM CONTINUING OPERATIONS BEFORE INCOME TAXES	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$746.64M	USD	2 Qtrs
Income tax provision	`IncomeTaxExpenseBenefit`	$23.98M	USD	1 Quarter
Income tax provision	`IncomeTaxExpenseBenefit`	$72.63M	USD	2 Qtrs
Income tax provision	`IncomeTaxExpenseBenefit`	$43.51M	USD	1 Quarter
Income tax provision	`IncomeTaxExpenseBenefit`	$50.74M	USD	2 Qtrs
NET INCOME	`ProfitLoss`	$473.77M	USD	2 Qtrs
NET INCOME	`ProfitLoss`	$388.49M	USD	1 Quarter
NET INCOME	`ProfitLoss`	$695.90M	USD	2 Qtrs
NET INCOME	`ProfitLoss`	$192.46M	USD	1 Quarter
Net income attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$21.44M	USD	1 Quarter
Net income attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$12.77M	USD	2 Qtrs
Net income attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$4.91M	USD	1 Quarter
Net income attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$11.06M	USD	2 Qtrs
NET INCOME ATTRIBUTABLE TO AMERICAN TOWER CORPORATION STOCKHOLDERS	`NetIncomeLoss`	$683.13M	USD	2 Qtrs
NET INCOME ATTRIBUTABLE TO AMERICAN TOWER CORPORATION STOCKHOLDERS	`NetIncomeLoss`	$367.05M	USD	1 Quarter
NET INCOME ATTRIBUTABLE TO AMERICAN TOWER CORPORATION STOCKHOLDERS	`NetIncomeLoss`	$187.55M	USD	1 Quarter
NET INCOME ATTRIBUTABLE TO AMERICAN TOWER CORPORATION STOCKHOLDERS	`NetIncomeLoss`	$462.71M	USD	2 Qtrs
Dividends on preferred stock	`PreferredStockDividendsIncomeStatementImpact`	$22.84M	USD	1 Quarter
Dividends on preferred stock	`PreferredStockDividendsIncomeStatementImpact`	$49.62M	USD	2 Qtrs
Dividends on preferred stock	`PreferredStockDividendsIncomeStatementImpact`	$26.78M	USD	1 Quarter
Dividends on preferred stock	`PreferredStockDividendsIncomeStatementImpact`	$53.56M	USD	2 Qtrs
NET INCOME ATTRIBUTABLE TO AMERICAN TOWER CORPORATION COMMON STOCKHOLDERS	`NetIncomeLossAvailableToCommonStockholdersBasic`	$344.21M	USD	1 Quarter
NET INCOME ATTRIBUTABLE TO AMERICAN TOWER CORPORATION COMMON STOCKHOLDERS	`NetIncomeLossAvailableToCommonStockholdersBasic`	$409.15M	USD	2 Qtrs
NET INCOME ATTRIBUTABLE TO AMERICAN TOWER CORPORATION COMMON STOCKHOLDERS	`NetIncomeLossAvailableToCommonStockholdersBasic`	$160.77M	USD	1 Quarter
NET INCOME ATTRIBUTABLE TO AMERICAN TOWER CORPORATION COMMON STOCKHOLDERS	`NetIncomeLossAvailableToCommonStockholdersBasic`	$633.51M	USD	2 Qtrs
Basic net income attributable to American Tower Corporation common stockholders (in dollars per share)	`EarningsPerShareBasic`	$0.38	USD	1 Quarter
Basic net income attributable to American Tower Corporation common stockholders (in dollars per share)	`EarningsPerShareBasic`	$0.96	USD	2 Qtrs
Basic net income attributable to American Tower Corporation common stockholders (in dollars per share)	`EarningsPerShareBasic`	$0.81	USD	1 Quarter
Basic net income attributable to American Tower Corporation common stockholders (in dollars per share)	`EarningsPerShareBasic`	$1.48	USD	2 Qtrs
Diluted net income attributable to American Tower Corporation common stockholders (in dollars per share)	`EarningsPerShareDiluted`	$1.47	USD	2 Qtrs
Diluted net income attributable to American Tower Corporation common stockholders (in dollars per share)	`EarningsPerShareDiluted`	$0.80	USD	1 Quarter
Diluted net income attributable to American Tower Corporation common stockholders (in dollars per share)	`EarningsPerShareDiluted`	$0.95	USD	2 Qtrs
Diluted net income attributable to American Tower Corporation common stockholders (in dollars per share)	`EarningsPerShareDiluted`	$0.37	USD	1 Quarter
BASIC (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	427.29M	shares	2 Qtrs
BASIC (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	427.30M	shares	1 Quarter
BASIC (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	424.48M	shares	2 Qtrs
BASIC (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	424.91M	shares	1 Quarter
DILUTED (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	430.44M	shares	2 Qtrs
DILUTED (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	430.49M	shares	1 Quarter
DILUTED (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	428.53M	shares	2 Qtrs
DILUTED (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	429.00M	shares	1 Quarter
DISTRIBUTIONS DECLARED PER COMMON SHARE (in dollars per share)	`CommonStockDividendsPerShareDeclared`	$1.04	USD	2 Qtrs
DISTRIBUTIONS DECLARED PER COMMON SHARE (in dollars per share)	`CommonStockDividendsPerShareDeclared`	$1.26	USD	2 Qtrs
DISTRIBUTIONS DECLARED PER COMMON SHARE (in dollars per share)	`CommonStockDividendsPerShareDeclared`	$0.53	USD	1 Quarter
DISTRIBUTIONS DECLARED PER COMMON SHARE (in dollars per share)	`CommonStockDividendsPerShareDeclared`	$0.64	USD	1 Quarter

Cash Flow Statement 84 line items

Line Item	Tag	Value	Unit	Period
Income tax refunds	`ProceedsFromIncomeTaxRefunds`	$14.01M	USD	2 Qtrs
Income tax refunds	`ProceedsFromIncomeTaxRefunds`	$17.26M	USD	2 Qtrs
Net income	`ProfitLoss`	$473.77M	USD	2 Qtrs
Net income	`ProfitLoss`	$388.49M	USD	1 Quarter
Net income	`ProfitLoss`	$695.90M	USD	2 Qtrs
Net income	`ProfitLoss`	$192.46M	USD	1 Quarter
Depreciation, amortization and accretion	`DepreciationAmortizationAndAccretionNet`	$817.50M	USD	2 Qtrs
Depreciation, amortization and accretion	`DepreciationAmortizationAndAccretionNet`	$739.40M	USD	2 Qtrs
Depreciation, amortization and accretion	`DepreciationAmortizationAndAccretionNet`	$397.76M	USD	1 Quarter
Depreciation, amortization and accretion	`DepreciationAmortizationAndAccretionNet`	$396.36M	USD	1 Quarter
Stock-based compensation expense	`ShareBasedCompensation`	$21.91M	USD	1 Quarter
Stock-based compensation expense	`ShareBasedCompensation`	$25.74M	USD	1 Quarter
Stock-based compensation expense	`ShareBasedCompensation`	$61.96M	USD	2 Qtrs
Stock-based compensation expense	`ShareBasedCompensation`	$49.99M	USD	2 Qtrs
Loss (gain) on early retirement of long-term obligations	`ExtinguishmentOfDebtGainLossNetOfTax`	$830.00K	USD	2 Qtrs
Loss (gain) on early retirement of long-term obligations	`ExtinguishmentOfDebtGainLossNetOfTax`	$-55.71M	USD	2 Qtrs
Other non-cash items reflected in statements of operations	`IncreaseDecreaseInOtherOperatingAssets`	$50.22M	USD	2 Qtrs
Other non-cash items reflected in statements of operations	`IncreaseDecreaseInOtherOperatingAssets`	$-53.46M	USD	2 Qtrs
Decrease in restricted cash	`IncreaseDecreaseInRestrictedCashForOperatingActivities`	$-5.66M	USD	2 Qtrs
Decrease in restricted cash	`IncreaseDecreaseInRestrictedCashForOperatingActivities`	$-12.17M	USD	2 Qtrs
Increase in net deferred rent balances	`StraightLineRent`	$71.47M	USD	2 Qtrs
Increase in net deferred rent balances	`StraightLineRent`	$34.93M	USD	2 Qtrs
Increase in assets	`IncreaseDecreaseInOperatingAssets`	$101.98M	USD	2 Qtrs
Increase in assets	`IncreaseDecreaseInOperatingAssets`	$32.98M	USD	2 Qtrs
Increase in liabilities	`IncreaseDecreaseInOperatingLiabilities`	$51.27M	USD	2 Qtrs
Increase in liabilities	`IncreaseDecreaseInOperatingLiabilities`	$65.40M	USD	2 Qtrs
Cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivitiesContinuingOperations`	$1.48B	USD	2 Qtrs
Cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivitiesContinuingOperations`	$1.31B	USD	2 Qtrs
Payments for purchase of property and equipment and construction activities	`PaymentsToAcquireProductiveAssets`	$371.51M	USD	2 Qtrs
Payments for purchase of property and equipment and construction activities	`PaymentsToAcquireProductiveAssets`	$319.43M	USD	2 Qtrs
Payments for acquisitions, net of cash acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	$1.22B	USD	2 Qtrs
Payments for acquisitions, net of cash acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	$857.22M	USD	2 Qtrs
Payment for Verizon transaction	`PaymentsToAcquireBusinessesGross`	$4.75M	USD	2 Qtrs
Payment for Verizon transaction	`PaymentsToAcquireBusinessesGross`	-	USD	2 Qtrs
Proceeds from sale of short-term investments and other non-current assets	`ProceedsFromSaleOfAvailableForSaleSecuritiesAndOtherProductiveAssets`	$2.60M	USD	2 Qtrs
Proceeds from sale of short-term investments and other non-current assets	`ProceedsFromSaleOfAvailableForSaleSecuritiesAndOtherProductiveAssets`	$7.20M	USD	2 Qtrs
Deposits, restricted cash, investments and other	`PaymentsForProceedsFromOtherInvestingActivities`	$5.36M	USD	2 Qtrs
Deposits, restricted cash, investments and other	`PaymentsForProceedsFromOtherInvestingActivities`	$-7.03M	USD	2 Qtrs
Cash used for investing activities	`NetCashProvidedByUsedInInvestingActivitiesContinuingOperations`	$-1.54B	USD	2 Qtrs
Cash used for investing activities	`NetCashProvidedByUsedInInvestingActivitiesContinuingOperations`	$-1.21B	USD	2 Qtrs
Repayments of short-term borrowings, net	`ProceedsFromRepaymentsOfShortTermDebt`	$-2.84M	USD	2 Qtrs
Repayments of short-term borrowings, net	`ProceedsFromRepaymentsOfShortTermDebt`	-	USD	2 Qtrs
Borrowings under credit facilities	`ProceedsFromLinesOfCredit`	$1.40B	USD	2 Qtrs
Borrowings under credit facilities	`ProceedsFromLinesOfCredit`	$2.51B	USD	2 Qtrs
Proceeds from issuance of senior notes, net	`ProceedsFromIssuanceOfSeniorLongTermDebt`	$2.24B	USD	2 Qtrs
Proceeds from issuance of senior notes, net	`ProceedsFromIssuanceOfSeniorLongTermDebt`	$1.28B	USD	2 Qtrs
Repayments of notes payable, credit facilities, senior notes and capital leases	`RepaymentsOfLongTermDebtAndCapitalSecurities`	$2.86B	USD	2 Qtrs
Repayments of notes payable, credit facilities, senior notes and capital leases	`RepaymentsOfLongTermDebtAndCapitalSecurities`	$3.13B	USD	2 Qtrs
Contributions from (distributions to) noncontrolling interest holders, net	`ProceedsFromPaymentsToMinorityShareholders`	$265.25M	USD	2 Qtrs
Contributions from (distributions to) noncontrolling interest holders, net	`ProceedsFromPaymentsToMinorityShareholders`	$-503.00K	USD	2 Qtrs
Purchases of common stock	`PaymentsForRepurchaseOfCommonStock`	-	USD	2 Qtrs
Purchases of common stock	`PaymentsForRepurchaseOfCommonStock`	$641.32M	USD	2 Qtrs
Proceeds from stock options and ESPP	`ProceedsFromIssuanceOrSaleOfEquity`	$60.36M	USD	2 Qtrs
Proceeds from stock options and ESPP	`ProceedsFromIssuanceOrSaleOfEquity`	$82.64M	USD	2 Qtrs
Distributions paid on common stock	`PaymentsOfDividendsCommonStock`	$514.90M	USD	2 Qtrs
Distributions paid on common stock	`PaymentsOfDividendsCommonStock`	$426.56M	USD	2 Qtrs
Distributions paid on preferred stock	`PaymentsOfDividendsPreferredStockAndPreferenceStock`	$53.56M	USD	2 Qtrs
Distributions paid on preferred stock	`PaymentsOfDividendsPreferredStockAndPreferenceStock`	$53.56M	USD	2 Qtrs
Payment for early retirement of long-term obligations	`PaymentsOfDebtExtinguishmentCosts`	$125.00K	USD	2 Qtrs
Payment for early retirement of long-term obligations	`PaymentsOfDebtExtinguishmentCosts`	$61.76M	USD	2 Qtrs
Deferred financing costs and other financing activities	`ProceedsFromPaymentsForOtherFinancingActivities`	$-23.26M	USD	2 Qtrs
Deferred financing costs and other financing activities	`ProceedsFromPaymentsForOtherFinancingActivities`	$-28.31M	USD	2 Qtrs
Cash (used for) provided by financing activities	`NetCashProvidedByUsedInFinancingActivitiesContinuingOperations`	$-290.59M	USD	2 Qtrs
Cash (used for) provided by financing activities	`NetCashProvidedByUsedInFinancingActivitiesContinuingOperations`	$330.26M	USD	2 Qtrs
Net effect of changes in foreign currency exchange rates on cash and cash equivalents	`EffectOfExchangeRateOnCashAndCashEquivalentsContinuingOperations`	$9.51M	USD	2 Qtrs
Net effect of changes in foreign currency exchange rates on cash and cash equivalents	`EffectOfExchangeRateOnCashAndCashEquivalentsContinuingOperations`	$-8.32M	USD	2 Qtrs
NET (DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$-17.14M	USD	2 Qtrs
NET (DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$89.85M	USD	2 Qtrs
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	`CashAndCashEquivalentsAtCarryingValue`	$770.02M	USD	Point-in-time
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	`CashAndCashEquivalentsAtCarryingValue`	$410.54M	USD	Point-in-time
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	`CashAndCashEquivalentsAtCarryingValue`	$787.16M	USD	Point-in-time
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	`CashAndCashEquivalentsAtCarryingValue`	$320.69M	USD	Point-in-time
CASH AND CASH EQUIVALENTS, END OF PERIOD	`CashAndCashEquivalentsAtCarryingValue`	$770.02M	USD	Point-in-time
CASH AND CASH EQUIVALENTS, END OF PERIOD	`CashAndCashEquivalentsAtCarryingValue`	$410.54M	USD	Point-in-time
CASH AND CASH EQUIVALENTS, END OF PERIOD	`CashAndCashEquivalentsAtCarryingValue`	$787.16M	USD	Point-in-time
CASH AND CASH EQUIVALENTS, END OF PERIOD	`CashAndCashEquivalentsAtCarryingValue`	$320.69M	USD	Point-in-time
CASH PAID FOR INCOME TAXES (NET OF REFUNDS OF $17,264 AND $14,011, RESPECTIVELY)	`IncomeTaxesPaidNet`	$50.41M	USD	2 Qtrs
CASH PAID FOR INCOME TAXES (NET OF REFUNDS OF $17,264 AND $14,011, RESPECTIVELY)	`IncomeTaxesPaidNet`	$60.38M	USD	2 Qtrs
CASH PAID FOR INTEREST	`InterestPaid`	$288.88M	USD	2 Qtrs
CASH PAID FOR INTEREST	`InterestPaid`	$351.99M	USD	2 Qtrs
Increase (decrease) in accounts payable and accrued expenses for purchases of property and equipment and construction activities	`ChangeInCapitalExpendituresIncurredButNotYetPaid`	$-36.08M	USD	2 Qtrs
Increase (decrease) in accounts payable and accrued expenses for purchases of property and equipment and construction activities	`ChangeInCapitalExpendituresIncurredButNotYetPaid`	$8.70M	USD	2 Qtrs
Purchases of property and equipment under capital leases	`CapitalLeaseObligationsIncurred`	$21.98M	USD	2 Qtrs
Purchases of property and equipment under capital leases	`CapitalLeaseObligationsIncurred`	$21.65M	USD	2 Qtrs

Stockholders Equity 42 line items

Line Item	Tag	Value	Unit	Period
BALANCE	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$7.05B	USD	Point-in-time
BALANCE	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$6.84B	USD	Point-in-time
BALANCE	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$6.71B	USD	Point-in-time
BALANCE	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$6.98B	USD	Point-in-time
Stock-based compensation related activity	`StockIssuedDuringPeriodValueShareBasedCompensation`	$86.78M	USD	2 Qtrs
Stock-based compensation related activity	`StockIssuedDuringPeriodValueShareBasedCompensation`	$117.25M	USD	2 Qtrs
Issuance of common stock-stock purchase plan	`StockIssuedDuringPeriodValueEmployeeStockPurchasePlan`	$4.55M	USD	2 Qtrs
Issuance of common stock-stock purchase plan	`StockIssuedDuringPeriodValueEmployeeStockPurchasePlan`	$3.85M	USD	2 Qtrs
Conversion of preferred stock	`StockIssuedDuringPeriodValueConversionOfConvertibleSecuritiesNetOfAdjustments`	$-6.00K	USD	2 Qtrs
Treasury stock activity	`TreasuryStockValueAcquiredCostMethod`	$641.32M	USD	2 Qtrs
Changes in fair value of cash flow hedges, net of tax	`OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax`	$65.00K	USD	2 Qtrs
Changes in fair value of cash flow hedges, net of tax	`OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax`	$-300.00K	USD	2 Qtrs
Changes in fair value of cash flow hedges, net of tax	`OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax`	$-9.00K	USD	1 Quarter
Changes in fair value of cash flow hedges, net of tax	`OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax`	$-166.00K	USD	1 Quarter
Reclassification of unrealized gains on cash flow hedges to net income	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax`	$65.00K	USD	2 Qtrs
Reclassification of unrealized gains on cash flow hedges to net income	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax`	$32.00K	USD	1 Quarter
Reclassification of unrealized gains on cash flow hedges to net income	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax`	$118.00K	USD	2 Qtrs
Reclassification of unrealized gains on cash flow hedges to net income	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax`	$57.00K	USD	1 Quarter
Foreign currency translation adjustment, net of tax	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$-177.97M	USD	1 Quarter
Foreign currency translation adjustment, net of tax	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$-54.46M	USD	1 Quarter
Foreign currency translation adjustment, net of tax	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$239.44M	USD	2 Qtrs
Foreign currency translation adjustment, net of tax	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$48.33M	USD	2 Qtrs
Foreign currency translation adjustment, net of tax	`OtherComprehensiveIncomeLossForeignCurrencyTransactionandTranslationAdjustmentNetofTaxLessAmountReclassifiedtoAdditionalPaidinCapital`	$183.66M	USD	2 Qtrs
Foreign currency translation adjustment, net of tax	`OtherComprehensiveIncomeLossForeignCurrencyTransactionandTranslationAdjustmentNetofTaxLessAmountReclassifiedtoAdditionalPaidinCapital`	$65.33M	USD	2 Qtrs
Contributions from noncontrolling interest holders	`NoncontrollingInterestIncreaseFromBusinessCombination`	$314.06M	USD	2 Qtrs
Contributions from noncontrolling interest holders	`NoncontrollingInterestIncreaseFromBusinessCombination`	$13.00K	USD	2 Qtrs
Distributions to noncontrolling interest holders	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$568.00K	USD	2 Qtrs
Distributions to noncontrolling interest holders	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$516.00K	USD	2 Qtrs
Common stock distributions declared	`DividendsCommonStockCash`	$541.76M	USD	2 Qtrs
Common stock distributions declared	`DividendsCommonStockCash`	$443.94M	USD	2 Qtrs
Preferred stock dividends declared	`DividendsPreferredStockCash`	$53.56M	USD	2 Qtrs
Preferred stock dividends declared	`DividendsPreferredStockCash`	$53.56M	USD	2 Qtrs
Net income	`ProfitLoss`	$473.77M	USD	2 Qtrs
Net income	`ProfitLoss`	$388.49M	USD	1 Quarter
Net income	`ProfitLoss`	$695.90M	USD	2 Qtrs
Net income	`ProfitLoss`	$192.46M	USD	1 Quarter
BALANCE	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$7.05B	USD	Point-in-time
BALANCE	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$6.84B	USD	Point-in-time
BALANCE	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$6.71B	USD	Point-in-time
BALANCE	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$6.98B	USD	Point-in-time
Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest	`NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest`	$687.03M	USD	2 Qtrs
Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest	`NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest`	$469.45M	USD	2 Qtrs

Comprehensive Income 44 line items

Line Item	Tag	Value	Unit	Period
Changes in fair value of cash flow hedges, tax	`OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax`	-	USD	2 Qtrs
Net income	`ProfitLoss`	$473.77M	USD	2 Qtrs
Changes in fair value of cash flow hedges, tax	`OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax`	-	USD	2 Qtrs
Net income	`ProfitLoss`	$388.49M	USD	1 Quarter
Changes in fair value of cash flow hedges, tax	`OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax`	-	USD	1 Quarter
Net income	`ProfitLoss`	$695.90M	USD	2 Qtrs
Changes in fair value of cash flow hedges, tax	`OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax`	-	USD	1 Quarter
Net income	`ProfitLoss`	$192.46M	USD	1 Quarter
Reclassification of unrealized gains on cash flow hedges to net income, tax	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax`	-	USD	1 Quarter
Reclassification of unrealized gains on cash flow hedges to net income, tax	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax`	-	USD	2 Qtrs
Reclassification of unrealized gains on cash flow hedges to net income, tax	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax`	-	USD	1 Quarter
Reclassification of unrealized gains on cash flow hedges to net income, tax	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax`	-	USD	2 Qtrs
Changes in fair value of cash flow hedges, net of tax of $0	`OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax`	$65.00K	USD	2 Qtrs
Foreign currency translation adjustments, tax expense (benefit)	`OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax`	$2.69M	USD	1 Quarter
Changes in fair value of cash flow hedges, net of tax of $0	`OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax`	$-300.00K	USD	2 Qtrs
Foreign currency translation adjustments, tax expense (benefit)	`OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax`	$2.42M	USD	2 Qtrs
Changes in fair value of cash flow hedges, net of tax of $0	`OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax`	$-9.00K	USD	1 Quarter
Foreign currency translation adjustments, tax expense (benefit)	`OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax`	$6.88M	USD	2 Qtrs
Foreign currency translation adjustments, tax expense (benefit)	`OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax`	$-1.08M	USD	1 Quarter
Changes in fair value of cash flow hedges, net of tax of $0	`OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax`	$-166.00K	USD	1 Quarter
Reclassification of unrealized gains on cash flow hedges to net income, net of tax of $0	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax`	$65.00K	USD	2 Qtrs
Reclassification of unrealized gains on cash flow hedges to net income, net of tax of $0	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax`	$32.00K	USD	1 Quarter
Reclassification of unrealized gains on cash flow hedges to net income, net of tax of $0	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax`	$118.00K	USD	2 Qtrs
Reclassification of unrealized gains on cash flow hedges to net income, net of tax of $0	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax`	$57.00K	USD	1 Quarter
Foreign currency translation adjustments, net of tax (benefit) expense of ($1,083), $2,695, $2,422 and $6,883, respectively	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$-177.97M	USD	1 Quarter
Foreign currency translation adjustments, net of tax (benefit) expense of ($1,083), $2,695, $2,422 and $6,883, respectively	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$-54.46M	USD	1 Quarter
Foreign currency translation adjustments, net of tax (benefit) expense of ($1,083), $2,695, $2,422 and $6,883, respectively	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$239.44M	USD	2 Qtrs
Foreign currency translation adjustments, net of tax (benefit) expense of ($1,083), $2,695, $2,422 and $6,883, respectively	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$48.33M	USD	2 Qtrs
Other comprehensive (loss) income	`OtherComprehensiveIncomeLossNetOfTax`	$48.33M	USD	2 Qtrs
Other comprehensive (loss) income	`OtherComprehensiveIncomeLossNetOfTax`	$-178.03M	USD	1 Quarter
Other comprehensive (loss) income	`OtherComprehensiveIncomeLossNetOfTax`	$239.02M	USD	2 Qtrs
Other comprehensive (loss) income	`OtherComprehensiveIncomeLossNetOfTax`	$-54.66M	USD	1 Quarter
Comprehensive income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$934.92M	USD	2 Qtrs
Comprehensive income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$14.43M	USD	1 Quarter
Comprehensive income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$333.83M	USD	1 Quarter
Comprehensive income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$522.10M	USD	2 Qtrs
Comprehensive (income) loss attributable to noncontrolling interests	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$101.26M	USD	2 Qtrs
Comprehensive (income) loss attributable to noncontrolling interests	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$-12.71M	USD	1 Quarter
Comprehensive (income) loss attributable to noncontrolling interests	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$-6.61M	USD	2 Qtrs
Comprehensive (income) loss attributable to noncontrolling interests	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$56.09M	USD	1 Quarter
Comprehensive income attributable to American Tower Corporation stockholders	`ComprehensiveIncomeNetOfTax`	$27.14M	USD	1 Quarter
Comprehensive income attributable to American Tower Corporation stockholders	`ComprehensiveIncomeNetOfTax`	$277.74M	USD	1 Quarter
Comprehensive income attributable to American Tower Corporation stockholders	`ComprehensiveIncomeNetOfTax`	$833.66M	USD	2 Qtrs
Comprehensive income attributable to American Tower Corporation stockholders	`ComprehensiveIncomeNetOfTax`	$528.71M	USD	2 Qtrs

Data is extracted from SEC EDGAR XBRL filings. Values shown are as reported in the filing.