$IRM
IRON MOUNTAIN INC Stock $irm

$irm Overview Financials Valuation SEC Filings Company Website

2019 Q4 Form 10-K Financial Statement

#000102056920000029 Filed on February 13, 2020

Income Statement

Concept	2019 Q4	2019 Q1	2018 Q4
Revenue	$1.080B	$1.054B	$1.061B
YoY Change	1.71%	1.09%	7.09%
Cost Of Revenue	$455.4M	$460.6M	$445.8M
YoY Change	2.15%	2.72%	4.65%
Gross Profit	$624.2M	$593.2M	$615.7M
YoY Change	1.38%	-0.13%	8.93%
Gross Profit Margin	57.82%	56.29%	58.0%
Selling, General & Admin	$237.8M	$268.7M	$256.4M
YoY Change	-7.25%	-0.38%	-3.25%
% of Gross Profit	38.1%	45.3%	41.64%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$173.8M	$162.5M	$164.9M
YoY Change	5.4%	1.19%	14.36%
% of Gross Profit	27.84%	27.39%	26.78%
Operating Expenses	$411.5M	$268.7M	$421.2M
YoY Change	-2.3%	-0.38%	3.72%
Operating Profit	$206.1M	$158.7M	$254.1M
YoY Change	-18.89%	0.99%	64.54%
Interest Expense	-$149.6M	-$120.1M	-$86.40M
YoY Change	73.15%	0.5%	-16.84%
% of Operating Profit	-72.6%	-75.69%	-34.01%
Other Income/Expense, Net	-$2.600M	-$15.21M	-$6.300M
YoY Change	-58.73%	-24.52%	2000.0%
Pretax Income	$53.90M	$41.03M	$161.4M
YoY Change	-66.6%	4.4%	699.01%
Income Tax	$16.80M	$10.55M	$2.800M
% Of Pretax Income	31.17%	25.72%	1.73%
Net Earnings	$37.10M	$30.45M	$158.6M
YoY Change	-76.6%	-21.77%	638.2%
Net Earnings / Revenue	3.44%	2.89%	14.94%
Basic Earnings Per Share	$0.13	$0.10	$0.55
Diluted Earnings Per Share	$0.13	$0.10	$0.55
COMMON SHARES
Basic Shares Outstanding	287.1M shares	286.5M shares	286.2M shares
Diluted Shares Outstanding		287.5M shares

Balance Sheet

Concept	2019 Q4	2019 Q1	2018 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$194.0M	$161.0M	$165.0M
YoY Change	17.58%	-63.57%	-82.18%
Cash & Equivalents	$193.6M	$161.5M	$165.5M
Short-Term Investments
Other Short-Term Assets	$192.0M	$211.0M	$196.0M
YoY Change	-2.04%	-5.5%	3.77%
Inventory
Prepaid Expenses
Receivables	$850.7M	$837.5M	$846.9M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$1.236B	$1.210B	$1.208B
YoY Change	2.34%	-20.66%	-38.06%
LONG-TERM ASSETS
Property, Plant & Equipment	$4.623B	$4.526B	$4.490B
YoY Change	2.97%	3.67%	31.36%
Goodwill	$4.485B	$4.465B	$4.441B
YoY Change	0.99%	3.23%	9.11%
Intangibles	$1.393B
YoY Change
Long-Term Investments
YoY Change
Other Assets	$209.9M	$201.7M	$212.0M
YoY Change	-0.97%	6.24%	58.69%
Total Long-Term Assets	$12.58B	$12.48B	$10.65B
YoY Change	18.14%	19.2%	17.99%
TOTAL ASSETS
Total Short-Term Assets	$1.236B	$1.210B	$1.208B
Total Long-Term Assets	$12.58B	$12.48B	$10.65B
Total Assets	$13.82B	$13.69B	$11.86B
YoY Change	16.53%	14.14%	8.03%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$324.7M	$283.7M	$318.8M
YoY Change	1.86%	12.94%	10.25%
Accrued Expenses	$961.8M	$840.0M	$780.8M
YoY Change	23.18%	46.15%	19.54%
Deferred Revenue	$274.0M	$266.3M	$264.8M
YoY Change	3.48%		9.62%
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$389.0M	$125.1M	$126.4M
YoY Change	207.75%	-8.79%	-13.6%
Total Short-Term Liabilities	$1.950B	$1.515B	$1.491B
YoY Change	30.77%	23.08%	12.07%
LONG-TERM LIABILITIES
Long-Term Debt	$8.276B	$8.366B	$8.016B
YoY Change	3.23%	4.3%	16.23%
Other Long-Term Liabilities	$143.0M	$127.1M	$111.3M
YoY Change	28.46%	31.42%	52.43%
Total Long-Term Liabilities	$8.419B	$8.493B	$8.128B
YoY Change	3.58%	4.62%	16.61%
TOTAL LIABILITIES
Total Short-Term Liabilities	$1.950B	$1.515B	$1.491B
Total Long-Term Liabilities	$8.419B	$8.493B	$8.128B
Total Liabilities	$10.37B	$10.01B	$9.619B
YoY Change	7.79%	7.05%	15.88%
SHAREHOLDERS EQUITY
Retained Earnings
YoY Change
Common Stock	$4.301B	$4.268B	$4.266B
YoY Change	0.83%	0.33%	2.37%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$1.464B	$1.759B	$1.861B
YoY Change
Total Liabilities & Shareholders Equity	$13.82B	$13.69B	$11.86B
YoY Change	16.53%	14.1%	8.06%

Cashflow Statement

Concept	2019 Q4	2019 Q1	2018 Q4
OPERATING ACTIVITIES
Net Income	$37.10M	$30.45M	$158.6M
YoY Change	-76.6%	-21.77%	638.2%
Depreciation, Depletion And Amortization	$173.8M	$162.5M	$164.9M
YoY Change	5.4%	1.19%	14.36%
Cash From Operating Activities	$318.6M	$117.1M	$311.0M
YoY Change	2.44%	27.85%	53.88%
INVESTING ACTIVITIES
Capital Expenditures	-$164.5M	$184.8M	-$157.5M
YoY Change	4.44%	93.26%	33.81%
Acquisitions		$39.42M
YoY Change		-97.24%
Other Investing Activities	$69.20M	-$99.70M	$38.50M
YoY Change	79.74%	-93.05%	2164.71%
Cash From Investing Activities	-$95.30M	-$311.2M	-$119.1M
YoY Change	-19.98%	-80.08%	2.67%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-218.9M	$187.7M	-218.9M
YoY Change	0.0%	-80.95%	-143.88%
NET CHANGE
Cash From Operating Activities	318.6M	$117.1M	311.0M
Cash From Investing Activities	-95.30M	-$311.2M	-119.1M
Cash From Financing Activities	-218.9M	$187.7M	-218.9M
Net Change In Cash	4.400M	-$4.010M	-27.00M
YoY Change	-116.3%	-99.17%	-104.62%
FREE CASH FLOW
Cash From Operating Activities	$318.6M	$117.1M	$311.0M
Capital Expenditures	-$164.5M	$184.8M	-$157.5M
Free Cash Flow	$483.1M	-$67.70M	$468.5M
YoY Change	3.12%	1576.94%	46.5%

Facts In Submission

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CY2019	dei	Entity File Number EntityFileNumber	1-13045
CY2019	dei	Entity Registrant Name EntityRegistrantName	IRON MOUNTAIN INC
CY2019	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2019	dei	Entity Address Address Line1 EntityAddressAddressLine1	One Federal Street
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CY2017	irm	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Minority Interest And Gain Loss On Disposition Of Real Estate IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsMinorityInterestAndGainLossOnDispositionOfRealEstate	200977000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	59931000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	42753000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	22962000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	268211000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	367558000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	178015000	USD
CY2019	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	104000	USD
CY2018	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-12427000	USD
CY2017	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-6291000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	268315000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	355131000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	171724000	USD
CY2019	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	938000	USD
CY2018	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	1198000	USD
CY2017	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	1611000	USD
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	267377000	USD
CY2018	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	353933000	USD
CY2017	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	170113000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.93
CY2018	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	1.28
CY2017	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.66
CY2019	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0
CY2018	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	-0.04
CY2017	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	-0.02
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.93
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.24
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.64
CY2019	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.93
CY2018	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	1.28
CY2017	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.66
CY2019	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0
CY2018	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	-0.04
CY2017	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	-0.02
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.93
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.23
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.64
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	286971000	shares
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	285913000	shares
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	265898000	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	287687000	shares
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	286653000	shares
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	266845000	shares
CY2019	us-gaap	Profit Loss ProfitLoss	268315000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	355131000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	171724000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	11994000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-164107000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	108564000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-8783000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-973000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	3211000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-165080000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	108564000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	271526000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	190051000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	280288000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	1066000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	-2207000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	1591000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	270460000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	192258000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	278697000	USD
CY2016Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1936671000	USD
CY2017	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	43110000	USD
CY2017	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	83014000	USD
CY2017	irm	Adjustmentsto Additional Paidin Capital Changein Valueof Redeemable Noncontrolling Interests AdjustmentstoAdditionalPaidinCapitalChangeinValueofRedeemableNoncontrollingInterests	25680000	USD
CY2017	us-gaap	Dividends Common Stock DividendsCommonStock	606476000	USD
CY2017	irm	Other Comprehensive Income Loss Foreign Currency Transactionand Translation Adjustment Excluding Redeemable Noncontrolling Interest Netof Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionandTranslationAdjustmentExcludingRedeemableNoncontrollingInterestNetofTax	108481000	USD
CY2017	us-gaap	Net Income Loss Including Portion Attributable To Nonredeemable Noncontrolling Interest NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest	171945000	USD
CY2017	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	1956000	USD
CY2017	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	-1507000	USD
CY2017Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2285134000	USD
CY2018	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	30020000	USD
CY2018	irm	Adjustmentsto Additional Paidin Capital Changein Valueof Redeemable Noncontrolling Interests AdjustmentstoAdditionalPaidinCapitalChangeinValueofRedeemableNoncontrollingInterests	16110000	USD
CY2018	us-gaap	Dividends Common Stock DividendsCommonStock	683519000	USD
CY2018	irm	Other Comprehensive Income Loss Foreign Currency Transactionand Translation Adjustment Excluding Redeemable Noncontrolling Interest Netof Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionandTranslationAdjustmentExcludingRedeemableNoncontrollingInterestNetofTax	-160548000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-973000	USD
CY2018	us-gaap	Net Income Loss Including Portion Attributable To Nonredeemable Noncontrolling Interest NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest	353784000	USD
CY2019	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2018	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	0	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1862463000	USD
CY2019	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	36682000	USD
CY2019	irm	Adjustmentsto Additional Paidin Capital Changein Valueof Redeemable Noncontrolling Interests AdjustmentstoAdditionalPaidinCapitalChangeinValueofRedeemableNoncontrollingInterests	1454000	USD
CY2019	us-gaap	Dividends Common Stock DividendsCommonStock	708561000	USD
CY2019	irm	Other Comprehensive Income Loss Foreign Currency Transactionand Translation Adjustment Excluding Redeemable Noncontrolling Interest Netof Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionandTranslationAdjustmentExcludingRedeemableNoncontrollingInterestNetofTax	11866000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-8783000	USD
CY2019	us-gaap	Net Income Loss Including Portion Attributable To Nonredeemable Noncontrolling Interest NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest	266233000	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1464227000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	268315000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	355131000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	171724000	USD
CY2019	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	104000	USD
CY2018	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-12427000	USD
CY2017	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-6291000	USD
CY2019	us-gaap	Depreciation Depreciation	456323000	USD
CY2018	us-gaap	Depreciation Depreciation	452740000	USD
CY2017	us-gaap	Depreciation Depreciation	406283000	USD
CY2019	us-gaap	Adjustment For Amortization AdjustmentForAmortization	218618000	USD
CY2018	us-gaap	Adjustment For Amortization AdjustmentForAmortization	202449000	USD
CY2017	us-gaap	Adjustment For Amortization AdjustmentForAmortization	131055000	USD
CY2019	us-gaap	Goodwill And Intangible Asset Impairment GoodwillAndIntangibleAssetImpairment	0	USD
CY2018	us-gaap	Goodwill And Intangible Asset Impairment GoodwillAndIntangibleAssetImpairment	0	USD
CY2017	us-gaap	Goodwill And Intangible Asset Impairment GoodwillAndIntangibleAssetImpairment	3011000	USD
CY2019	irm	Amortizationof Permanent Withdrawal Fees AmortizationofPermanentWithdrawalFees	13703000	USD
CY2018	irm	Amortizationof Permanent Withdrawal Fees AmortizationofPermanentWithdrawalFees	16281000	USD
CY2017	irm	Amortizationof Permanent Withdrawal Fees AmortizationofPermanentWithdrawalFees	11253000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	35654000	USD
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	31167000	USD
CY2017	us-gaap	Share Based Compensation ShareBasedCompensation	30019000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-624000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-4239000	USD
CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-39355000	USD
CY2018	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2017	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-78368000	USD
CY2019	us-gaap	Gain Loss On Sales Of Assets And Asset Impairment Charges GainLossOnSalesOfAssetsAndAssetImpairmentCharges	63824000	USD
CY2018	us-gaap	Gain Loss On Sales Of Assets And Asset Impairment Charges GainLossOnSalesOfAssetsAndAssetImpairmentCharges	74134000	USD
CY2017	us-gaap	Gain Loss On Sales Of Assets And Asset Impairment Charges GainLossOnSalesOfAssetsAndAssetImpairmentCharges	766000	USD
CY2019	us-gaap	Disposal Group Not Discontinued Operation Gain Loss On Disposal DisposalGroupNotDiscontinuedOperationGainLossOnDisposal	0	USD
CY2018	us-gaap	Disposal Group Not Discontinued Operation Gain Loss On Disposal DisposalGroupNotDiscontinuedOperationGainLossOnDisposal	0	USD
CY2017	us-gaap	Disposal Group Not Discontinued Operation Gain Loss On Disposal DisposalGroupNotDiscontinuedOperationGainLossOnDisposal	38869000	USD
CY2019	irm	Foreign Currency Transaction Gain Loss Unrealized And Adjustments Noncash Items To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities Other ForeignCurrencyTransactionGainLossUnrealizedAndAdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesOther	-29838000	USD
CY2018	irm	Foreign Currency Transaction Gain Loss Unrealized And Adjustments Noncash Items To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities Other ForeignCurrencyTransactionGainLossUnrealizedAndAdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesOther	16395000	USD
CY2017	irm	Foreign Currency Transaction Gain Loss Unrealized And Adjustments Noncash Items To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities Other ForeignCurrencyTransactionGainLossUnrealizedAndAdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesOther	-50503000	USD
CY2019	us-gaap	Increase Decrease In Operating Assets IncreaseDecreaseInOperatingAssets	-5404000	USD
CY2018	us-gaap	Increase Decrease In Operating Assets IncreaseDecreaseInOperatingAssets	36054000	USD
CY2017	us-gaap	Increase Decrease In Operating Assets IncreaseDecreaseInOperatingAssets	93805000	USD
CY2019	us-gaap	Increase Decrease In Operating Liabilities IncreaseDecreaseInOperatingLiabilities	3352000	USD
CY2018	us-gaap	Increase Decrease In Operating Liabilities IncreaseDecreaseInOperatingLiabilities	-2829000	USD
CY2017	us-gaap	Increase Decrease In Operating Liabilities IncreaseDecreaseInOperatingLiabilities	8547000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	966655000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	936544000	USD
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	724259000	USD
CY2019	us-gaap	Cash Provided By Used In Operating Activities Discontinued Operations CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations	0	USD
CY2018	us-gaap	Cash Provided By Used In Operating Activities Discontinued Operations CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations	-995000	USD
CY2017	us-gaap	Cash Provided By Used In Operating Activities Discontinued Operations CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations	-3291000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	966655000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	935549000	USD
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	720968000	USD
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	692983000	USD
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	460062000	USD
CY2017	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	343131000	USD
CY2019	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	58237000	USD
CY2018	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	1758557000	USD
CY2017	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	219705000	USD
CY2019	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	46105000	USD
CY2018	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	63577000	USD
CY2017	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	55126000	USD
CY2019	irm	Paymentsfor Customer Inducements PaymentsforCustomerInducements	9371000	USD
CY2018	irm	Paymentsfor Customer Inducements PaymentsforCustomerInducements	8902000	USD
CY2017	irm	Paymentsfor Customer Inducements PaymentsforCustomerInducements	20059000	USD
CY2019	irm	Increase Decrease In Contract With Customer Liabilities Net IncreaseDecreaseInContractWithCustomerLiabilitiesNet	-76171000	USD
CY2018	irm	Increase Decrease In Contract With Customer Liabilities Net IncreaseDecreaseInContractWithCustomerLiabilitiesNet	-26208000	USD
CY2017	irm	Increase Decrease In Contract With Customer Liabilities Net IncreaseDecreaseInContractWithCustomerLiabilitiesNet	0	USD
CY2019	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	0	USD
CY2018	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	1019000	USD
CY2017	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	29236000	USD
CY2019	us-gaap	Payments To Acquire Interest In Joint Venture PaymentsToAcquireInterestInJointVenture	19222000	USD
CY2018	us-gaap	Payments To Acquire Interest In Joint Venture PaymentsToAcquireInterestInJointVenture	0	USD
CY2017	us-gaap	Payments To Acquire Interest In Joint Venture PaymentsToAcquireInterestInJointVenture	0	USD
CY2019	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	166143000	USD
CY2017	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	9337000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-2230128000	USD
CY2018	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	86159000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-735946000	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-599448000	USD
CY2019	us-gaap	Cash Provided By Used In Investing Activities Discontinued Operations CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations	5061000	USD
CY2018	us-gaap	Cash Provided By Used In Investing Activities Discontinued Operations CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations	8250000	USD
CY2017	us-gaap	Cash Provided By Used In Investing Activities Discontinued Operations CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations	0	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-730885000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-2221878000	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-599448000	USD
CY2019	irm	Repayments Of Secured Debt Short Term And Long Term RepaymentsOfSecuredDebtShortTermAndLongTerm	14535115000	USD
CY2018	irm	Repayments Of Secured Debt Short Term And Long Term RepaymentsOfSecuredDebtShortTermAndLongTerm	14192139000	USD
CY2017	irm	Repayments Of Secured Debt Short Term And Long Term RepaymentsOfSecuredDebtShortTermAndLongTerm	14429695000	USD
CY2019	irm	Proceeds From Issuance Of Secured Debt Short Term And Long Term ProceedsFromIssuanceOfSecuredDebtShortTermAndLongTerm	14059818000	USD
CY2018	irm	Proceeds From Issuance Of Secured Debt Short Term And Long Term ProceedsFromIssuanceOfSecuredDebtShortTermAndLongTerm	15351614000	USD
CY2017	irm	Proceeds From Issuance Of Secured Debt Short Term And Long Term ProceedsFromIssuanceOfSecuredDebtShortTermAndLongTerm	13917055000	USD
CY2019	us-gaap	Early Repayment Of Subordinated Debt EarlyRepaymentOfSubordinatedDebt	0	USD
CY2018	us-gaap	Early Repayment Of Subordinated Debt EarlyRepaymentOfSubordinatedDebt	0	USD
CY2017	us-gaap	Early Repayment Of Subordinated Debt EarlyRepaymentOfSubordinatedDebt	1746856000	USD
CY2019	us-gaap	Proceeds From Issuance Of Senior Long Term Debt ProceedsFromIssuanceOfSeniorLongTermDebt	987500000	USD
CY2018	us-gaap	Proceeds From Issuance Of Senior Long Term Debt ProceedsFromIssuanceOfSeniorLongTermDebt	0	USD
CY2017	us-gaap	Proceeds From Issuance Of Senior Long Term Debt ProceedsFromIssuanceOfSeniorLongTermDebt	2656948000	USD
CY2019	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	0	USD
CY2018	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	0	USD
CY2017	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	13230000	USD
CY2019	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	1924000	USD
CY2018	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	2523000	USD
CY2017	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	4151000	USD
CY2019	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	704526000	USD
CY2018	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	673635000	USD
CY2017	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	439999000	USD
CY2019	irm	Proceeds From The Issuance Of Equity Offering ProceedsFromTheIssuanceOfEquityOffering	0	USD
CY2018	irm	Proceeds From The Issuance Of Equity Offering ProceedsFromTheIssuanceOfEquityOffering	76192000	USD
CY2017	irm	Proceeds From The Issuance Of Equity Offering ProceedsFromTheIssuanceOfEquityOffering	516462000	USD
CY2019	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	USD
CY2018	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	8716000	USD
CY2017	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	59129000	USD
CY2019	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	1027000	USD
CY2018	irm	Payments For Stock Plans PaymentsForStockPlans	1142000	USD
CY2017	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	13095000	USD
CY2019	us-gaap	Payment Of Financing And Stock Issuance Costs PaymentOfFinancingAndStockIssuanceCosts	5753000	USD
CY2018	us-gaap	Payment Of Financing And Stock Issuance Costs PaymentOfFinancingAndStockIssuanceCosts	16405000	USD
CY2017	us-gaap	Payment Of Financing And Stock Issuance Costs PaymentOfFinancingAndStockIssuanceCosts	14793000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	-198973000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	550678000	USD
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	540425000	USD
CY2019	us-gaap	Cash Provided By Used In Financing Activities Discontinued Operations CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations	0	USD
CY2018	us-gaap	Cash Provided By Used In Financing Activities Discontinued Operations CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations	0	USD
CY2017	us-gaap	Cash Provided By Used In Financing Activities Discontinued Operations CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations	0	USD
CY2019	us-gaap	Stock Issued1 StockIssued1	0	USD
CY2018	us-gaap	Stock Issued1 StockIssued1	0	USD
CY2017Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	172102000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-198973000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	550678000	USD
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	540425000	USD
CY2019	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-8727000	USD
CY2018	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-24563000	USD
CY2017	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	27270000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	28070000	USD
CY2018	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-760214000	USD
CY2017	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	689215000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	165485000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	925699000	USD
CY2016Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	236484000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	193555000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	165485000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	925699000	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	394984000	USD
CY2018	us-gaap	Interest Paid Net InterestPaidNet	388440000	USD
CY2017	us-gaap	Interest Paid Net InterestPaidNet	368468000	USD
CY2019	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	61691000	USD
CY2018	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	64493000	USD
CY2017	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	104498000	USD
CY2019	irm	Noncash Investing And Financing Activities Financing Leases NoncashInvestingAndFinancingActivitiesFinancingLeases	32742000	USD
CY2018	irm	Noncash Investing And Financing Activities Financing Leases NoncashInvestingAndFinancingActivitiesFinancingLeases	83948000	USD
CY2017	irm	Noncash Investing And Financing Activities Financing Leases NoncashInvestingAndFinancingActivitiesFinancingLeases	166843000	USD
CY2019	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	82345000	USD
CY2018	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	84143000	USD
CY2017	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	71098000	USD
CY2019	irm	Business Combination Consideration Transferred Accrued Purchase Priceand Other Holdbacks BusinessCombinationConsiderationTransferredAccruedPurchasePriceandOtherHoldbacks	4135000	USD
CY2018	irm	Business Combination Consideration Transferred Accrued Purchase Priceand Other Holdbacks BusinessCombinationConsiderationTransferredAccruedPurchasePriceandOtherHoldbacks	35218000	USD
CY2017	irm	Business Combination Consideration Transferred Accrued Purchase Priceand Other Holdbacks BusinessCombinationConsiderationTransferredAccruedPurchasePriceandOtherHoldbacks	20093000	USD
CY2019Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	186021000	USD
CY2018Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	181986000	USD
CY2017	us-gaap	Stock Issued1 StockIssued1	83014000	USD
CY2019	us-gaap	Nature Of Operations NatureOfOperations	Nature of Business<div style="line-height:120%;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;text-align:left;text-indent:30px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">The accompanying financial statements represent the consolidated accounts of Iron Mountain Incorporated, a Delaware corporation (“IMI”), and its subsidiaries (“we” or “us”). We help organizations around the world protect their information, reduce storage rental costs, comply with regulations, facilitate corporate disaster recovery, and better use their information and information technology ("IT") infrastructure for business advantages, regardless of its format, location or life cycle stage. We do this by storing physical records and data backup media, offering information management solutions, and providing data center space for enterprise-class colocation and opportunistic hyperscale data center deployments. We offer comprehensive records and information management services and data management services, along with the expertise and experience to address complex storage and information management challenges such as rising storage rental costs, legal and regulatory compliance, and disaster recovery requirements. We provide secure and reliable data center facilities to protect digital information and ensure the continued operation of our customers’ IT infrastructure, with reliable and flexible deployment options.</span></div><div style="line-height:120%;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;text-indent:32px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">In October 2019, we announced a global program designed to better position us for future growth and achievement of our strategic objectives (“Project Summit”). Project Summit focuses on simplifying our global structure by combining our core records and information management operations under one global leader and rebalancing our resources, streamlining managerial structures and leveraging our global and regional customer facing resources. We are also implementing systems and process changes designed to make our organization more agile and dynamic, streamline our organization and reallocate our resources to better align with our strategic goals as part of Project Summit. The activities associated with Project Summit began in the fourth quarter of 2019 and are expected to be substantially complete by the end of 2021. See Note 2.h., Note 9 and Note 14.</span></div><div style="line-height:120%;text-indent:32px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;text-indent:32px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">On January 1, 2019, we adopted Accounting Standards Update ("ASU") No. 2016-02, </span><span style="font-family:inherit;font-size:10pt;font-style:italic;">Leases (Topic 842)</span><span style="font-family:inherit;font-size:10pt;">, as amended ("ASU 2016-02"). See Note 2.m.</span></div><div style="line-height:120%;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;text-indent:32px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">On January 10, 2018, we completed the acquisition of IO Data Centers, LLC ("IODC"). See Note 6.</span></div><div style="line-height:120%;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;text-indent:32px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">On January 1, 2018, we adopted ASU No. 2014-09, </span><span style="font-family:inherit;font-size:10pt;font-style:italic;">Revenue from Contracts with Customers (Topic 606) </span><span style="font-family:inherit;font-size:10pt;">("ASU 2014-09"). See Note 2.l.</span></div><div style="line-height:120%;text-indent:32px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div>We have been organized and have operated as a real estate investment trust for United States federal income tax purposes ("REIT") beginning with our taxable year ended December 31, 2014.
CY2018	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	3732000	USD
CY2019	us-gaap	Use Of Estimates UseOfEstimates	Use of Estimates<div style="line-height:120%;text-indent:32px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;text-indent:32px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America ("GAAP") requires us to make estimates, judgments and assumptions that affect the reported amounts of assets, liabilities, revenues and expenses, and related disclosure of contingent assets and liabilities at the date of the financial statements and for the period then ended. On an ongoing basis, we evaluate the estimates used. We base our estimates on historical experience, actuarial estimates, current conditions and various other assumptions that we believe to be reasonable under the circumstances. These estimates form the basis for making judgments about the carrying values of assets and liabilities and are not readily apparent from other sources. Actual results may differ from these estimates.</span></div>
CY2019Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	4865000	USD
CY2018Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	15141000	USD
CY2019	irm	Target Percentage Of Debt Portfolio With Fixed Interest Rates TargetPercentageOfDebtPortfolioWithFixedInterestRates	0.75
CY2019Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	8048906000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	7600949000	USD
CY2019	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	15980000	USD
CY2019	us-gaap	Capitalized Computer Software Additions CapitalizedComputerSoftwareAdditions	34650000	USD
CY2018	us-gaap	Capitalized Computer Software Additions CapitalizedComputerSoftwareAdditions	29407000	USD
CY2017	us-gaap	Capitalized Computer Software Additions CapitalizedComputerSoftwareAdditions	25166000	USD
CY2019Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	30831000	USD
CY2018Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	28256000	USD
CY2019	irm	Gain Losson Saleof Assetsand Asset Impairment Charges Excluding Real Estate GainLossonSaleofAssetsandAssetImpairmentChargesExcludingRealEstate	63824000	USD
CY2019	us-gaap	Sale And Leaseback Transaction Gain Loss Net SaleAndLeasebackTransactionGainLossNet	67800000	USD
CY2018	irm	Gain Losson Saleof Assetsand Asset Impairment Charges Excluding Real Estate GainLossonSaleofAssetsandAssetImpairmentChargesExcludingRealEstate	73622000	USD
CY2017Q4	us-gaap	Goodwill And Intangible Asset Impairment GoodwillAndIntangibleAssetImpairment	3011000	USD
CY2018Q4	us-gaap	Goodwill Goodwill	4441030000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	4485209000	USD
CY2017Q4	us-gaap	Goodwill Gross GoodwillGross	4070267000	USD
CY2018	irm	Goodwill Deductible Acquired During Period GoodwillDeductibleAcquiredDuringPeriod	9895000	USD
CY2018	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	467703000	USD
CY2018	us-gaap	Goodwill Purchase Accounting Adjustments GoodwillPurchaseAccountingAdjustments	4469000	USD
CY2018	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	-110102000	USD
CY2018Q4	us-gaap	Goodwill Gross GoodwillGross	4441030000	USD
CY2019	irm	Goodwill Deductible Acquired During Period GoodwillDeductibleAcquiredDuringPeriod	16450000	USD
CY2019	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	13132000	USD
CY2019	us-gaap	Goodwill Purchase Accounting Adjustments GoodwillPurchaseAccountingAdjustments	4280000	USD
CY2019	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	10317000	USD
CY2019Q4	us-gaap	Goodwill Gross GoodwillGross	4485209000	USD
CY2018Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	135420000	USD
CY2019Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	135420000	USD
CY2018	irm	Goodwill Purchase Accounting Adjustments Gross GoodwillPurchaseAccountingAdjustmentsGross	-2717000	USD
CY2018	us-gaap	Payments For Previous Acquisition PaymentsForPreviousAcquisition	7186000	USD
CY2019	irm	Goodwill Purchase Accounting Adjustments Gross GoodwillPurchaseAccountingAdjustmentsGross	4942000	USD
CY2019	us-gaap	Proceeds From Previous Acquisition ProceedsFromPreviousAcquisition	662000	USD
CY2019Q4	us-gaap	Deferred Finance Costs Gross DeferredFinanceCostsGross	144981000	USD
CY2018Q4	us-gaap	Deferred Finance Costs Gross DeferredFinanceCostsGross	128469000	USD
CY2019Q4	us-gaap	Accumulated Amortization Deferred Finance Costs AccumulatedAmortizationDeferredFinanceCosts	58016000	USD
CY2018Q4	us-gaap	Accumulated Amortization Deferred Finance Costs AccumulatedAmortizationDeferredFinanceCosts	41862000	USD
CY2019Q4	irm	Deferred Financing Costs Amortization Expense Next Twelve Months DeferredFinancingCostsAmortizationExpenseNextTwelveMonths	17132000	USD
CY2019Q4	irm	Deferred Financing Costs Amortization Expense Year Two DeferredFinancingCostsAmortizationExpenseYearTwo	16002000	USD
CY2019Q4	irm	Deferred Financing Costs Amortization Expense Year Three DeferredFinancingCostsAmortizationExpenseYearThree	14888000	USD
CY2019Q4	irm	Deferred Financing Costs Amortization Expense Year Four DeferredFinancingCostsAmortizationExpenseYearFour	11618000	USD
CY2019Q4	irm	Deferred Financing Costs Amortization Expense Year Five DeferredFinancingCostsAmortizationExpenseYearFive	8424000	USD
CY2019Q4	irm	Deferred Financing Costs Amortization Expense After Year Five DeferredFinancingCostsAmortizationExpenseAfterYearFive	18901000	USD
CY2019Q4	irm	Threshold Percentage Of Current Assets And Liabilities Required To Be Disclosed Separately ThresholdPercentageOfCurrentAssetsAndLiabilitiesRequiredToBeDisclosedSeparately	0.05
CY2019Q4	irm	Threshold Percentage Of Current Assets And Liabilities Required To Be Disclosed Separately ThresholdPercentageOfCurrentAssetsAndLiabilitiesRequiredToBeDisclosedSeparately	0.05
CY2019Q4	us-gaap	Interest Payable Current InterestPayableCurrent	97987000	USD
CY2018Q4	us-gaap	Interest Payable Current InterestPayableCurrent	84283000	USD
CY2019Q4	us-gaap	Accrued Bonuses Current AccruedBonusesCurrent	56662000	USD
CY2018Q4	us-gaap	Accrued Bonuses Current AccruedBonusesCurrent	75256000	USD
CY2019Q4	us-gaap	Sales And Excise Tax Payable Current And Noncurrent SalesAndExciseTaxPayableCurrentAndNoncurrent	115352000	USD
CY2018Q4	us-gaap	Sales And Excise Tax Payable Current And Noncurrent SalesAndExciseTaxPayableCurrentAndNoncurrent	124232000	USD
CY2019Q4	irm	Accrued Dividends AccruedDividends	186021000	USD
CY2018Q4	irm	Accrued Dividends AccruedDividends	181986000	USD
CY2019Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	223249000	USD
CY2019Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	282481000	USD
CY2018Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	315024000	USD
CY2019Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	961752000	USD
CY2018Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	780781000	USD
CY2019	irm	Percentage Of Revenue From Sales Of Products PercentageOfRevenueFromSalesOfProducts	0.02
CY2019Q4	irm	Capitalized Contract Cost Amortization Expense Next Twelve Months CapitalizedContractCostAmortizationExpenseNextTwelveMonths	28156000	USD
CY2019Q4	irm	Capitalized Contract Cost Amortization Expense Year Two CapitalizedContractCostAmortizationExpenseYearTwo	20448000	USD
CY2019Q4	irm	Capitalized Contract Cost Amortization Expense Year Three CapitalizedContractCostAmortizationExpenseYearThree	9871000	USD
CY2019Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	274036000	USD
CY2018Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	264823000	USD
CY2019Q4	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	36029000	USD
CY2018Q4	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	26401000	USD
CY2019Q4	us-gaap	Operating Leases Future Minimum Payments Receivable Current OperatingLeasesFutureMinimumPaymentsReceivableCurrent	202130000	USD
CY2019Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Two Years OperatingLeasesFutureMinimumPaymentsReceivableInTwoYears	135911000	USD
CY2019Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Three Years OperatingLeasesFutureMinimumPaymentsReceivableInThreeYears	98797000	USD
CY2019Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Four Years OperatingLeasesFutureMinimumPaymentsReceivableInFourYears	80079000	USD
CY2019Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Five Years OperatingLeasesFutureMinimumPaymentsReceivableInFiveYears	68376000	USD
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	1869101000	USD
CY2019Q1	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	1825721000	USD
CY2019Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	327215000	USD
CY2019Q1	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	361078000	USD
CY2019Q4	irm	Lease Rightof Use Asset LeaseRightofUseAsset	2196316000	USD
CY2019Q1	irm	Lease Rightof Use Asset LeaseRightofUseAsset	2186799000	USD
CY2019Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	223249000	USD
CY2019Q1	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	209911000	USD
CY2019Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	46582000	USD
CY2019Q1	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	50437000	USD
CY2019Q4	irm	Lease Liability Current LeaseLiabilityCurrent	269831000	USD
CY2019Q1	irm	Lease Liability Current LeaseLiabilityCurrent	260348000	USD
CY2019Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	1728686000	USD
CY2019Q1	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	1685771000	USD
CY2019Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	320600000	USD
CY2019Q1	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	350263000	USD
CY2019Q4	irm	Lease Liability Noncurrent LeaseLiabilityNoncurrent	2049286000	USD
CY2019Q1	irm	Lease Liability Noncurrent LeaseLiabilityNoncurrent	2036034000	USD
CY2019Q4	irm	Lease Liability LeaseLiability	2319117000	USD
CY2019Q1	irm	Lease Liability LeaseLiability	2296382000	USD
CY2019Q4	irm	Operating Lease Right Of Use Asset Real Estate Assets Percent OperatingLeaseRightOfUseAssetRealEstateAssetsPercent	0.99
CY2019Q4	irm	Operating Lease Right Of Use Asset Non Real Estate Assets Percent OperatingLeaseRightOfUseAssetNonRealEstateAssetsPercent	0.01
CY2019Q4	irm	Finance Lease Right Of Use Asset Real Estate Assets Percent FinanceLeaseRightOfUseAssetRealEstateAssetsPercent	0.69
CY2019Q4	irm	Finance Lease Right Of Use Asset Non Real Estate Assets Percent FinanceLeaseRightOfUseAssetNonRealEstateAssetsPercent	0.31
CY2019	us-gaap	Operating Lease Cost OperatingLeaseCost	459619000	USD
CY2019	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	59258000	USD
CY2019	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	21031000	USD
CY2019	irm	Finance Lease Cost FinanceLeaseCost	80289000	USD
CY2019	us-gaap	Operating Lease Cost OperatingLeaseCost	459619000	USD
CY2019	us-gaap	Variable Lease Cost VariableLeaseCost	105922000	USD
CY2018	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	365762000	USD
CY2017	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	350403000	USD
CY2019	us-gaap	Sublease Income SubleaseIncome	6637000	USD
CY2019Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P11Y
CY2019Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P11Y7M6D
CY2019Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.071
CY2019Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.057
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	339469000	USD
CY2019Q4	irm	Operating Leases Future Minimum Payments Due Future Minimum Sublease Rentals Within One Year OperatingLeasesFutureMinimumPaymentsDueFutureMinimumSubleaseRentalsWithinOneYear	7695000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	62271000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	319628000	USD
CY2019Q4	irm	Operating Leases Future Minimum Payments Due Future Minimum Sublease Rentals Within Two Years OperatingLeasesFutureMinimumPaymentsDueFutureMinimumSubleaseRentalsWithinTwoYears	5282000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	54993000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	295981000	USD
CY2019Q4	irm	Operating Leases Future Minimum Payments Due Future Minimum Sublease Rentals Within Three Years OperatingLeasesFutureMinimumPaymentsDueFutureMinimumSubleaseRentalsWithinThreeYears	4996000	USD
CY2019Q4	us-gaap	Operating Leases Future Minimum Payments Due Future Minimum Sublease Rentals OperatingLeasesFutureMinimumPaymentsDueFutureMinimumSubleaseRentals	34092000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	44886000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	267809000	USD
CY2019Q4	irm	Operating Leases Future Minimum Payments Due Future Minimum Sublease Rentals Within Four Years OperatingLeasesFutureMinimumPaymentsDueFutureMinimumSubleaseRentalsWithinFourYears	4885000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	39130000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	237604000	USD
CY2019Q4	irm	Operating Leases Future Minimum Payments Due Future Minimum Sublease Rentals Within Five Years OperatingLeasesFutureMinimumPaymentsDueFutureMinimumSubleaseRentalsWithinFiveYears	3543000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Year Five FinanceLeaseLiabilityPaymentsDueYearFive	31849000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	1454918000	USD
CY2019Q4	irm	Operating Leases Future Minimum Payments Due Future Minimum Sublease Rentals Thereafter OperatingLeasesFutureMinimumPaymentsDueFutureMinimumSubleaseRentalsThereafter	7691000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due After Year Five FinanceLeaseLiabilityPaymentsDueAfterYearFive	277890000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	2915409000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	511019000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	963474000	USD
CY2019Q4	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	143837000	USD
CY2019Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	1951935000	USD
CY2019Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	367182000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	323454000	USD
CY2018Q4	irm	Operating Leases Future Minimum Payments Due Future Minimum Sublease Rentals Current Year OperatingLeasesFutureMinimumPaymentsDueFutureMinimumSubleaseRentalsCurrentYear	7525000	USD
CY2018Q4	us-gaap	Capital Leases Future Minimum Payments Due Current CapitalLeasesFutureMinimumPaymentsDueCurrent	80513000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	293276000	USD
CY2018Q4	irm	Operating Leases Future Minimum Payments Due Future Minimum Sublease Rentals Within One Year OperatingLeasesFutureMinimumPaymentsDueFutureMinimumSubleaseRentalsWithinOneYear	7200000	USD
CY2018Q4	us-gaap	Capital Leases Future Minimum Payments Due In Two Years CapitalLeasesFutureMinimumPaymentsDueInTwoYears	71335000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	267379000	USD
CY2018Q4	irm	Operating Leases Future Minimum Payments Due Future Minimum Sublease Rentals Within Two Years OperatingLeasesFutureMinimumPaymentsDueFutureMinimumSubleaseRentalsWithinTwoYears	7063000	USD
CY2018Q4	us-gaap	Capital Leases Future Minimum Payments Due In Three Years CapitalLeasesFutureMinimumPaymentsDueInThreeYears	61269000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	246128000	USD
CY2018Q4	irm	Operating Leases Future Minimum Payments Due Future Minimum Sublease Rentals Within Three Years OperatingLeasesFutureMinimumPaymentsDueFutureMinimumSubleaseRentalsWithinThreeYears	6694000	USD
CY2018Q4	us-gaap	Capital Leases Future Minimum Payments Due In Four Years CapitalLeasesFutureMinimumPaymentsDueInFourYears	52832000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	221808000	USD
CY2018Q4	irm	Operating Leases Future Minimum Payments Due Future Minimum Sublease Rentals Within Four Years OperatingLeasesFutureMinimumPaymentsDueFutureMinimumSubleaseRentalsWithinFourYears	6409000	USD
CY2018Q4	us-gaap	Capital Leases Future Minimum Payments Due In Five Years CapitalLeasesFutureMinimumPaymentsDueInFiveYears	44722000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	1287807000	USD
CY2018Q4	irm	Operating Leases Future Minimum Payments Due Future Minimum Sublease Rentals Thereafter OperatingLeasesFutureMinimumPaymentsDueFutureMinimumSubleaseRentalsThereafter	6279000	USD
CY2018Q4	us-gaap	Capital Leases Future Minimum Payments Due Thereafter CapitalLeasesFutureMinimumPaymentsDueThereafter	377750000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	2639852000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due Future Minimum Sublease Rentals OperatingLeasesFutureMinimumPaymentsDueFutureMinimumSubleaseRentals	41170000	USD
CY2018Q4	us-gaap	Capital Leases Future Minimum Payments Due CapitalLeasesFutureMinimumPaymentsDue	688421000	USD
CY2018Q4	us-gaap	Capital Leases Future Minimum Payments Interest Included In Payments CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments	241248000	USD
CY2018Q4	irm	Capital Leases Future Minimum Payments Present Value Of Net Minimum Payments Excluding Common Area Maintenance Costs CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPaymentsExcludingCommonAreaMaintenanceCosts	447173000	USD
CY2019	us-gaap	Operating Lease Payments OperatingLeasePayments	338059000	USD
CY2019	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	21031000	USD
CY2019	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	58033000	USD
CY2019	irm	Operating Lease Modifications And Reassessments OperatingLeaseModificationsAndReassessments	108023000	USD
CY2019	irm	Noncash Or Part Noncash Transaction Operating Leases NoncashOrPartNoncashTransactionOperatingLeases	170464000	USD
CY2019	irm	Financing Lease Modifications And Reassessments FinancingLeaseModificationsAndReassessments	32742000	USD
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Expiration Period SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod	P3Y
CY2019	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	35654000	USD
CY2019	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	33103000	USD
CY2019	irm	Allocated Share Based Compensation Expense Earnings Per Share Basic And Diluted AllocatedShareBasedCompensationExpenseEarningsPerShareBasicAndDiluted	0.12
CY2018	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	31167000	USD
CY2018	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	28998000	USD
CY2018	irm	Allocated Share Based Compensation Expense Earnings Per Share Basic And Diluted AllocatedShareBasedCompensationExpenseEarningsPerShareBasicAndDiluted	0.10
CY2017	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	30019000	USD
CY2017	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	26512000	USD
CY2017	irm	Allocated Share Based Compensation Expense Earnings Per Share Basic And Diluted AllocatedShareBasedCompensationExpenseEarningsPerShareBasicAndDiluted	0.10
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	4835721	shares
CY2019Q4	irm	Share Based Compensation Arrangement Share Based Payment Award Options Percentage Of Outstanding Options ShareBasedCompensationArrangementShareBasedPaymentAwardOptionsPercentageOfOutstandingOptions	1.000
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized	48253839	shares
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	4095067	shares
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	265898000	shares
CY2019	irm	Incremental Common Shares Attributable To Share Based Payments Arrangements Stock Option IncrementalCommonSharesAttributableToShareBasedPaymentsArrangementsStockOption	145509	shares
CY2018	irm	Incremental Common Shares Attributable To Share Based Payments Arrangements Stock Option IncrementalCommonSharesAttributableToShareBasedPaymentsArrangementsStockOption	234558	shares
CY2017	irm	Incremental Common Shares Attributable To Share Based Payments Arrangements Stock Option IncrementalCommonSharesAttributableToShareBasedPaymentsArrangementsStockOption	431071	shares
CY2019	irm	Incremental Common Shares Attributable To Share Based Payments Restricted Stock And Rs Us And P Us IncrementalCommonSharesAttributableToShareBasedPaymentsRestrictedStockAndRSUsAndPUs	570435	shares
CY2018	irm	Incremental Common Shares Attributable To Share Based Payments Restricted Stock And Rs Us And P Us IncrementalCommonSharesAttributableToShareBasedPaymentsRestrictedStockAndRSUsAndPUs	505030	shares
CY2017	irm	Incremental Common Shares Attributable To Share Based Payments Restricted Stock And Rs Us And P Us IncrementalCommonSharesAttributableToShareBasedPaymentsRestrictedStockAndRSUsAndPUs	509235	shares
CY2019	irm	Incremental Common Shares Attributable To Share Based Payments Over Allotment Option IncrementalCommonSharesAttributableToShareBasedPaymentsOverAllotmentOption	0	shares
CY2019Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	39696000	USD
CY2019	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P1Y9M18D
CY2019	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	268211000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	367558000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	178015000	USD
CY2019	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	938000	USD
CY2018	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	1198000	USD
CY2017	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	1611000	USD
CY2019	irm	Incomelossfrom Continuing Operations Netof Taxexcluding Portion Attributableto Noncontrolling Interest IncomelossfromContinuingOperationsNetofTaxexcludingPortionAttributabletoNoncontrollingInterest	267273000	USD
CY2018	irm	Incomelossfrom Continuing Operations Netof Taxexcluding Portion Attributableto Noncontrolling Interest IncomelossfromContinuingOperationsNetofTaxexcludingPortionAttributabletoNoncontrollingInterest	366360000	USD
CY2017	irm	Incomelossfrom Continuing Operations Netof Taxexcluding Portion Attributableto Noncontrolling Interest IncomelossfromContinuingOperationsNetofTaxexcludingPortionAttributabletoNoncontrollingInterest	176404000	USD
CY2019	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	104000	USD
CY2018	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-12427000	USD
CY2017	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-6291000	USD
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	267377000	USD
CY2018	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	353933000	USD
CY2017	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	170113000	USD
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	286971000	shares
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	285913000	shares
CY2018	irm	Incremental Common Shares Attributable To Share Based Payments Over Allotment Option IncrementalCommonSharesAttributableToShareBasedPaymentsOverAllotmentOption	0	shares
CY2017	irm	Incremental Common Shares Attributable To Share Based Payments Over Allotment Option IncrementalCommonSharesAttributableToShareBasedPaymentsOverAllotmentOption	6278	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	287686944	shares
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	286652588	shares
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	266844584	shares
CY2019	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.93
CY2018	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	1.28
CY2017	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.66
CY2019	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0
CY2018	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	-0.04
CY2017	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	-0.02
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.93
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.24
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.64
CY2019	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.93
CY2018	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	1.28
CY2017	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.66
CY2019	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0
CY2018	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	-0.04
CY2017	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	-0.02
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.93
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.23
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.64
CY2019	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	4475745	shares
CY2018	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	3258078	shares
CY2017	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	2326344	shares
CY2019	irm	Period To Charge Off Uncollectible Balances Of Receivable As Circumstances Warrant PeriodToChargeOffUncollectibleBalancesOfReceivableAsCircumstancesWarrant	P1Y
CY2019Q4	irm	Concentration Risk Number Of Triple A Rated Money Market Funds ConcentrationRiskNumberOfTripleARatedMoneyMarketFunds	7	fund
CY2018Q4	us-gaap	Money Market Funds At Carrying Value MoneyMarketFundsAtCarryingValue	0	USD
CY2018Q4	irm	Concentration Risk Number Of Global Banks ConcentrationRiskNumberOfGlobalBanks	7	bank
CY2019	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	As per our risk management investment policy, we limit exposure to concentration of credit risk by limiting the amount invested in any one mutual fund to a maximum of <span style="font-family:inherit;font-size:10pt;"><span>1%</span></span><span style="font-family:inherit;font-size:10pt;"> of the fund total assets or in any one financial institution to a maximum of </span><span style="font-family:inherit;font-size:10pt;"><span>$75,000</span></span>.Concentrations of Credit Risk<div style="line-height:120%;text-align:left;text-indent:30px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div>Financial instruments that potentially subject us to credit risk consist principally of cash and cash equivalents (including money market funds and time deposits) and accounts receivable.
CY2019	irm	Concentration Of Risk Maximum Investment Limit Per Financial Institution ConcentrationOfRiskMaximumInvestmentLimitPerFinancialInstitution	75000000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	193555000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	165485000	USD
CY2019Q4	us-gaap	Money Market Funds At Carrying Value MoneyMarketFundsAtCarryingValue	13653000	USD
CY2019	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-24852000	USD
CY2018	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	15567000	USD
CY2017	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-43248000	USD
CY2019	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2018	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2017	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-78368000	USD
CY2019	irm	Other Nonoperating Income Expense Other Net OtherNonoperatingIncomeExpenseOtherNet	-9046000	USD
CY2018	irm	Other Nonoperating Income Expense Other Net OtherNonoperatingIncomeExpenseOtherNet	-3875000	USD
CY2017	irm	Other Nonoperating Income Expense Other Net OtherNonoperatingIncomeExpenseOtherNet	42187000	USD
CY2019	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-33898000	USD
CY2018	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	11692000	USD
CY2017	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-79429000	USD
CY2019	us-gaap	Translation Adjustment For Net Investment Hedge Increase Decrease Gross Of Tax TranslationAdjustmentForNetInvestmentHedgeIncreaseDecreaseGrossOfTax	6003000	USD
CY2018	us-gaap	Translation Adjustment For Net Investment Hedge Increase Decrease Gross Of Tax TranslationAdjustmentForNetInvestmentHedgeIncreaseDecreaseGrossOfTax	11070000	USD
CY2017	us-gaap	Translation Adjustment For Net Investment Hedge Increase Decrease Gross Of Tax TranslationAdjustmentForNetInvestmentHedgeIncreaseDecreaseGrossOfTax	-15015000	USD
CY2019Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	8751544000	USD
CY2019Q4	us-gaap	Unamortized Debt Issuance Expense UnamortizedDebtIssuanceExpense	86965000	USD
CY2019Q4	us-gaap	Long Term Debt LongTermDebt	8664579000	USD
CY2018Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	8229430000	USD
CY2018Q4	us-gaap	Unamortized Debt Issuance Expense UnamortizedDebtIssuanceExpense	86607000	USD
CY2018Q4	us-gaap	Long Term Debt LongTermDebt	8142823000	USD
CY2019Q4	irm	Longterm Debt Gross Current Maturities LongtermDebtGrossCurrentMaturities	389013000	USD
CY2019Q4	irm	Unamortized Debt Issuance Expense Current UnamortizedDebtIssuanceExpenseCurrent	0	USD
CY2019Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	389013000	USD
CY2018Q4	irm	Longterm Debt Gross Current Maturities LongtermDebtGrossCurrentMaturities	126406000	USD
CY2018Q4	irm	Unamortized Debt Issuance Expense Current UnamortizedDebtIssuanceExpenseCurrent	0	USD
CY2018Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	126406000	USD
CY2019Q4	irm	Long Term Debt Gross Netof Current Portion LongTermDebtGrossNetofCurrentPortion	8362531000	USD
CY2019Q4	irm	Unamortized Debt Issuance Expense Net UnamortizedDebtIssuanceExpenseNet	86965000	USD
CY2019Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	8275566000	USD
CY2018Q4	irm	Long Term Debt Gross Netof Current Portion LongTermDebtGrossNetofCurrentPortion	8103024000	USD
CY2018Q4	irm	Unamortized Debt Issuance Expense Net UnamortizedDebtIssuanceExpenseNet	86607000	USD
CY2018Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	8016417000	USD
CY2019Q4	irm	Debt Instrument Percentage Of Capital Stock Pledged To Secure Debt DebtInstrumentPercentageOfCapitalStockPledgedToSecureDebt	0.66
CY2019Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	367182000	USD
CY2018Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	447173000	USD
CY2019Q4	irm	Number Of Series Of Senior Subordinated Notes NumberOfSeriesOfSeniorSubordinatedNotes	10	debt_instrument
CY2019	us-gaap	Debt Instrument Redemption Price Percentage DebtInstrumentRedemptionPricePercentage	1
CY2019Q4	irm	Senior Subordinated Notes Repurchase Price Percentage Of Principal Amount Plus Accrued And Unpaid Interest In Event Of Change Of Control SeniorSubordinatedNotesRepurchasePricePercentageOfPrincipalAmountPlusAccruedAndUnpaidInterestInEventOfChangeOfControl	1.01
CY2019Q4	irm	Cash Pool Agreement Number Of Cash Pools CashPoolAgreementNumberOfCashPools	2	cash_pool
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	389013000	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	608584000	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	487601000	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	1384684000	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	1036688000	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	4847561000	USD
CY2019Q4	irm	Longterm Debt Excluding Unamortized Discount Premiumand Debt Issuance Costsand Current Maturities LongtermDebtExcludingUnamortizedDiscountPremiumandDebtIssuanceCostsandCurrentMaturities	8754131000	USD
CY2019Q4	us-gaap	Debt Instrument Unamortized Discount DebtInstrumentUnamortizedDiscount	2587000	USD
CY2019Q4	us-gaap	Unamortized Debt Issuance Expense UnamortizedDebtIssuanceExpense	86965000	USD
CY2019Q4	us-gaap	Long Term Debt LongTermDebt	8664579000	USD
CY2019Q4	us-gaap	Minority Interest Ownership Percentage By Parent MinorityInterestOwnershipPercentageByParent	1
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	193555000	USD
CY2019Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	850701000	USD
CY2019Q4	us-gaap	Due From Related Parties Current DueFromRelatedPartiesCurrent	0	USD
CY2019Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	192083000	USD
CY2019Q4	us-gaap	Assets Current AssetsCurrent	1236339000	USD
CY2019Q4	irm	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	4623037000	USD
CY2019Q4	us-gaap	Due From Related Parties Noncurrent DueFromRelatedPartiesNoncurrent	0	USD
CY2019Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	0	USD
CY2019Q4	us-gaap	Goodwill Goodwill	4485209000	USD
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	1869101000	USD
CY2019Q4	irm	Other Assets Noncurrent Consolidating Balance Sheet OtherAssetsNoncurrentConsolidatingBalanceSheet	1603130000	USD
CY2019Q4	irm	Assets Noncurrent Excluding Property Plant And Equipment Net AssetsNoncurrentExcludingPropertyPlantAndEquipmentNet	7957440000	USD
CY2019Q4	us-gaap	Assets Assets	13816816000	USD
CY2019Q4	us-gaap	Accounts Payable Related Parties Current AccountsPayableRelatedPartiesCurrent	0	USD
CY2019Q4	irm	Borrowings Under Cash Pools BorrowingsUnderCashPools	0	USD
CY2019Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	389013000	USD
CY2019Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	1560496000	USD
CY2019Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	8275566000	USD
CY2019Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	1728686000	USD
CY2019Q4	us-gaap	Notes Payable Related Parties Noncurrent NotesPayableRelatedPartiesNoncurrent	0	USD
CY2019Q4	irm	Other Liabilities Noncurrent Consolidating Balance Sheet OtherLiabilitiesNoncurrentConsolidatingBalanceSheet	331146000	USD
CY2019Q4	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	67682000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	1463962000	USD
CY2019Q4	us-gaap	Minority Interest MinorityInterest	265000	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1464227000	USD
CY2019Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	13816816000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	165485000	USD
CY2018Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	846889000	USD
CY2018Q4	us-gaap	Due From Related Parties Current DueFromRelatedPartiesCurrent	0	USD
CY2018Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	195740000	USD
CY2018Q4	us-gaap	Assets Current AssetsCurrent	1208114000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	4489557000	USD
CY2018Q4	us-gaap	Due From Related Parties Noncurrent DueFromRelatedPartiesNoncurrent	0	USD
CY2018Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	0	USD
CY2018Q4	us-gaap	Goodwill Goodwill	4441030000	USD
CY2018Q4	irm	Other Assets Noncurrent Consolidating Balance Sheet OtherAssetsNoncurrentConsolidatingBalanceSheet	1718517000	USD
CY2017	irm	Revenuefrom Contractwith Customer Excluding Assessed Tax Intercompany RevenuefromContractwithCustomerExcludingAssessedTaxIntercompany	0	USD
CY2017	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	3845578000	USD
CY2017	us-gaap	Cost Of Goods And Service Excluding Depreciation Depletion And Amortization CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization	1664825000	USD
CY2017	us-gaap	Related Party Costs RelatedPartyCosts	0	USD
CY2017	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	937180000	USD
CY2017	us-gaap	Operating Income Loss OperatingIncomeLoss	634051000	USD
CY2018Q4	irm	Assets Noncurrent Excluding Property Plant And Equipment Net AssetsNoncurrentExcludingPropertyPlantAndEquipmentNet	6159547000	USD
CY2018Q4	us-gaap	Assets Assets	11857218000	USD
CY2018Q4	us-gaap	Accounts Payable Related Parties Current AccountsPayableRelatedPartiesCurrent	0	USD
CY2018Q4	irm	Borrowings Under Cash Pools BorrowingsUnderCashPools	0	USD
CY2018Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	126406000	USD
CY2018Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	1364369000	USD
CY2018Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	8016417000	USD
CY2018Q4	us-gaap	Notes Payable Related Parties Noncurrent NotesPayableRelatedPartiesNoncurrent	0	USD
CY2018Q4	irm	Other Liabilities Noncurrent Consolidating Balance Sheet OtherLiabilitiesNoncurrentConsolidatingBalanceSheet	417031000	USD
CY2018Q4	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	70532000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	1861054000	USD
CY2018Q4	us-gaap	Minority Interest MinorityInterest	1409000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1862463000	USD
CY2018Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	11857218000	USD
CY2019	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	2681087000	USD
CY2019	irm	Revenuefrom Contractwith Customer Excluding Assessed Tax Intercompany RevenuefromContractwithCustomerExcludingAssessedTaxIntercompany	0	USD
CY2019	us-gaap	Revenues Revenues	4262584000	USD
CY2019	us-gaap	Cost Of Goods And Service Excluding Depreciation Depletion And Amortization CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization	1833315000	USD
CY2019	us-gaap	Related Party Costs RelatedPartyCosts	0	USD
CY2019	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	991664000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	658201000	USD
CY2019	us-gaap	Acquisition Costs AcquisitionCosts	13293000	USD
CY2019	us-gaap	Restructuring Charges RestructuringCharges	48597000	USD
CY2019	irm	Gain Losson Saleof Assetsand Asset Impairment Charges Excluding Real Estate GainLossonSaleofAssetsandAssetImpairmentChargesExcludingRealEstate	63824000	USD
CY2019	us-gaap	Costs And Expenses CostsAndExpenses	3481246000	USD
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	781338000	USD
CY2019	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-419298000	USD
CY2019	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-33898000	USD
CY2019	irm	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Minority Interest And Gain Loss On Disposition Of Real Estate IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsMinorityInterestAndGainLossOnDispositionOfRealEstate	328142000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	59931000	USD
CY2019	us-gaap	Income Loss From Subsidiaries Net Of Tax IncomeLossFromSubsidiariesNetOfTax	0	USD
CY2019	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	268211000	USD
CY2019	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	104000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	268315000	USD
CY2019	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	938000	USD
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	267377000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	268315000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	11994000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-8783000	USD
CY2017	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	522376000	USD
CY2017	us-gaap	Acquisition Costs AcquisitionCosts	84901000	USD
CY2017	us-gaap	Goodwill And Intangible Asset Impairment GoodwillAndIntangibleAssetImpairment	3011000	USD
CY2017	irm	Gain Losson Saleof Assetsand Asset Impairment Charges Excluding Real Estate GainLossonSaleofAssetsandAssetImpairmentChargesExcludingRealEstate	766000	USD
CY2017	us-gaap	Costs And Expenses CostsAndExpenses	3211527000	USD
CY2019	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	0	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	3211000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	271526000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	1066000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	270460000	USD
CY2018	irm	Revenuefrom Contractwith Customer Excluding Assessed Tax Intercompany RevenuefromContractwithCustomerExcludingAssessedTaxIntercompany	0	USD
CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	4225761000	USD
CY2018	us-gaap	Cost Of Goods And Service Excluding Depreciation Depletion And Amortization CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization	1793954000	USD
CY2018	us-gaap	Related Party Costs RelatedPartyCosts	0	USD
CY2018	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	1006983000	USD
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	639514000	USD
CY2018	us-gaap	Acquisition Costs AcquisitionCosts	50665000	USD
CY2018	irm	Gain Losson Saleof Assetsand Asset Impairment Charges Excluding Real Estate GainLossonSaleofAssetsandAssetImpairmentChargesExcludingRealEstate	73622000	USD
CY2018	us-gaap	Costs And Expenses CostsAndExpenses	3417494000	USD
CY2018	us-gaap	Operating Income Loss OperatingIncomeLoss	808267000	USD
CY2018	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-409648000	USD
CY2018	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	11692000	USD
CY2018	irm	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Minority Interest And Gain Loss On Disposition Of Real Estate IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsMinorityInterestAndGainLossOnDispositionOfRealEstate	410311000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	42753000	USD
CY2018	us-gaap	Income Loss From Subsidiaries Net Of Tax IncomeLossFromSubsidiariesNetOfTax	0	USD
CY2018	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	367558000	USD
CY2018	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-12427000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	355131000	USD
CY2018	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	1198000	USD
CY2018	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	353933000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	355131000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-164107000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-973000	USD
CY2018	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	0	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-165080000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	190051000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	-2207000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	192258000	USD
CY2017	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-353645000	USD
CY2017	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-79429000	USD
CY2017	irm	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Minority Interest And Gain Loss On Disposition Of Real Estate IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsMinorityInterestAndGainLossOnDispositionOfRealEstate	200977000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	22962000	USD
CY2017	us-gaap	Income Loss From Subsidiaries Net Of Tax IncomeLossFromSubsidiariesNetOfTax	0	USD
CY2017	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	178015000	USD
CY2017	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-6291000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	171724000	USD
CY2017	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	1611000	USD
CY2017	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	170113000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	171724000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	108564000	USD
CY2017	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	0	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	108564000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	280288000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	1591000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	278697000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	966655000	USD
CY2019	us-gaap	Cash Provided By Used In Operating Activities Discontinued Operations CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations	0	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	966655000	USD
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	692983000	USD
CY2019	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	58237000	USD
CY2019	us-gaap	Proceeds From Payments For Long Term Loans For Related Parties ProceedsFromPaymentsForLongTermLoansForRelatedParties	0	USD
CY2019	irm	Paymentsto Acquire Intangible Assetsand Customer Inducements PaymentstoAcquireIntangibleAssetsandCustomerInducements	131647000	USD
CY2019	us-gaap	Payments To Acquire Interest In Joint Venture PaymentsToAcquireInterestInJointVenture	19222000	USD
CY2019	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	0	USD
CY2019	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	166143000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-735946000	USD
CY2019	us-gaap	Cash Provided By Used In Investing Activities Discontinued Operations CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations	5061000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-730885000	USD
CY2019	irm	Repayments Of Secured Debt Short Term And Long Term RepaymentsOfSecuredDebtShortTermAndLongTerm	14535115000	USD
CY2019	irm	Proceeds From Issuance Of Secured Debt Short Term And Long Term ProceedsFromIssuanceOfSecuredDebtShortTermAndLongTerm	14059818000	USD
CY2019	us-gaap	Proceeds From Issuance Of Senior Long Term Debt ProceedsFromIssuanceOfSeniorLongTermDebt	987500000	USD
CY2019	irm	Borrowingspayments Under Cash Pools BorrowingspaymentsUnderCashPools	0	USD
CY2019	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	1924000	USD
CY2019	irm	Proceeds From Loans From Parent ProceedsFromLoansFromParent	0	USD
CY2019	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	704526000	USD
CY2019	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	1027000	USD
CY2019	us-gaap	Payment Of Financing And Stock Issuance Costs PaymentOfFinancingAndStockIssuanceCosts	5753000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	-198973000	USD
CY2019	us-gaap	Cash Provided By Used In Financing Activities Discontinued Operations CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations	0	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-198973000	USD
CY2017	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	9337000	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-599448000	USD
CY2017	us-gaap	Cash Provided By Used In Investing Activities Discontinued Operations CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations	0	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-599448000	USD
CY2019	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-8727000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	28070000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	165485000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	193555000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	936544000	USD
CY2018	us-gaap	Cash Provided By Used In Operating Activities Discontinued Operations CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations	-995000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	935549000	USD
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	460062000	USD
CY2018	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	1758557000	USD
CY2018	us-gaap	Proceeds From Collection Of Longterm Loans To Related Parties ProceedsFromCollectionOfLongtermLoansToRelatedParties	0	USD
CY2018	irm	Paymentsto Acquire Intangible Assetsand Customer Inducements PaymentstoAcquireIntangibleAssetsandCustomerInducements	98687000	USD
CY2018	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	1019000	USD
CY2018	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	86159000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-2230128000	USD
CY2018	us-gaap	Cash Provided By Used In Investing Activities Discontinued Operations CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations	8250000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-2221878000	USD
CY2018	irm	Repayments Of Secured Debt Short Term And Long Term RepaymentsOfSecuredDebtShortTermAndLongTerm	14192139000	USD
CY2018	irm	Proceeds From Issuance Of Secured Debt Short Term And Long Term ProceedsFromIssuanceOfSecuredDebtShortTermAndLongTerm	15351614000	USD
CY2018	irm	Borrowingspayments Under Cash Pools BorrowingspaymentsUnderCashPools	0	USD
CY2018	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	2523000	USD
CY2018	irm	Proceeds From Loans From Parent ProceedsFromLoansFromParent	0	USD
CY2018	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	673635000	USD
CY2018	irm	Payments For Stock Plans PaymentsForStockPlans	1142000	USD
CY2018	irm	Proceeds From Over Allotment Option ProceedsFromOverAllotmentOption	76192000	USD
CY2018	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	8716000	USD
CY2018	us-gaap	Payment Of Financing And Stock Issuance Costs PaymentOfFinancingAndStockIssuanceCosts	16405000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	550678000	USD
CY2018	us-gaap	Cash Provided By Used In Financing Activities Discontinued Operations CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations	0	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	550678000	USD
CY2018	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-24563000	USD
CY2018	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-760214000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	925699000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	165485000	USD
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	724259000	USD
CY2017	us-gaap	Cash Provided By Used In Operating Activities Discontinued Operations CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations	-3291000	USD
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	720968000	USD
CY2017	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	343131000	USD
CY2017	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	219705000	USD
CY2017	us-gaap	Proceeds From Payments For Long Term Loans For Related Parties ProceedsFromPaymentsForLongTermLoansForRelatedParties	0	USD
CY2017	us-gaap	Payments To Acquire Businesses And Interest In Affiliates PaymentsToAcquireBusinessesAndInterestInAffiliates	0	USD
CY2017	irm	Paymentsto Acquire Intangible Assetsand Customer Inducements PaymentstoAcquireIntangibleAssetsandCustomerInducements	75185000	USD
CY2017	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	29236000	USD
CY2017	irm	Repayments Of Secured Debt Short Term And Long Term RepaymentsOfSecuredDebtShortTermAndLongTerm	14429695000	USD
CY2017	irm	Proceeds From Issuance Of Secured Debt Short Term And Long Term ProceedsFromIssuanceOfSecuredDebtShortTermAndLongTerm	13917055000	USD
CY2017	us-gaap	Early Repayment Of Subordinated Debt EarlyRepaymentOfSubordinatedDebt	1746856000	USD
CY2017	us-gaap	Proceeds From Issuance Of Senior Long Term Debt ProceedsFromIssuanceOfSeniorLongTermDebt	2656948000	USD
CY2017	irm	Borrowingspayments Under Cash Pools BorrowingspaymentsUnderCashPools	0	USD
CY2017	us-gaap	Proceeds From Payments To Minority Shareholders ProceedsFromPaymentsToMinorityShareholders	9079000	USD
CY2017	irm	Proceeds From Loans From Parent ProceedsFromLoansFromParent	0	USD
CY2017	us-gaap	Proceeds From Contributions From Parent ProceedsFromContributionsFromParent	0	USD
CY2017	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	439999000	USD
CY2017	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	13095000	USD
CY2017	irm	Proceeds From Over Allotment Option ProceedsFromOverAllotmentOption	516462000	USD
CY2017	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	59129000	USD
CY2017	us-gaap	Payment Of Financing And Stock Issuance Costs PaymentOfFinancingAndStockIssuanceCosts	14793000	USD
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	540425000	USD
CY2017	us-gaap	Cash Provided By Used In Financing Activities Discontinued Operations CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations	0	USD
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	540425000	USD
CY2017	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	27270000	USD
CY2017	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	689215000	USD
CY2016Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	236484000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	925699000	USD
CY2018	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	4229251000	USD
CY2017	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	3983016000	USD
CY2018	us-gaap	Business Acquisitions Pro Forma Income Loss From Continuing Operations Before Changes In Accounting And Extraordinary Items Net Of Tax BusinessAcquisitionsProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTax	377510000	USD
CY2017	us-gaap	Business Acquisitions Pro Forma Income Loss From Continuing Operations Before Changes In Accounting And Extraordinary Items Net Of Tax BusinessAcquisitionsProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTax	110677000	USD
CY2018	us-gaap	Business Acquisition Pro Forma Income Loss From Continuing Operations Before Changes In Accounting And Extraordinary Items Net Of Tax Per Share Basic BusinessAcquisitionProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTaxPerShareBasic	1.32
CY2017	us-gaap	Business Acquisition Pro Forma Income Loss From Continuing Operations Before Changes In Accounting And Extraordinary Items Net Of Tax Per Share Basic BusinessAcquisitionProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTaxPerShareBasic	0.39
CY2018	us-gaap	Business Acquisition Pro Forma Income Loss From Continuing Operations Before Changes In Accounting And Extraordinary Items Net Of Tax Per Share Diluted BusinessAcquisitionProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTaxPerShareDiluted	1.31
CY2017	us-gaap	Business Acquisition Pro Forma Income Loss From Continuing Operations Before Changes In Accounting And Extraordinary Items Net Of Tax Per Share Diluted BusinessAcquisitionProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTaxPerShareDiluted	0.39
CY2018Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	0	USD
CY2018Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	0	USD
CY2017	us-gaap	Tax Cuts And Jobs Act Of2017 Transition Tax For Accumulated Foreign Earnings Income Tax Expense TaxCutsAndJobsActOf2017TransitionTaxForAccumulatedForeignEarningsIncomeTaxExpense	160000000	USD
CY2017	irm	Income Tax Reconciliation Repatriation Of Foreign Earnings Attributable To Reit IncomeTaxReconciliationRepatriationOfForeignEarningsAttributableToREIT	70900000	USD
CY2019	irm	Tax Cuts And Jobs Act Of2017 Incomplete Accounting Global Intangible Low Taxed Income Income Tax Expense Benefit TaxCutsAndJobsActOf2017IncompleteAccountingGlobalIntangibleLowTaxedIncomeIncomeTaxExpenseBenefit	0	USD
CY2018	irm	Tax Cuts And Jobs Act Of2017 Incomplete Accounting Global Intangible Low Taxed Income Income Tax Expense Benefit TaxCutsAndJobsActOf2017IncompleteAccountingGlobalIntangibleLowTaxedIncomeIncomeTaxExpenseBenefit	41944000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	53197000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	59477000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	99240000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	92952000	USD
CY2019Q4	irm	Deferred Tax Assets Tax Federal Benefit Of Unrecognized Tax Benefits DeferredTaxAssetsTaxFederalBenefitOfUnrecognizedTaxBenefits	3039000	USD
CY2018Q4	irm	Deferred Tax Assets Tax Federal Benefit Of Unrecognized Tax Benefits DeferredTaxAssetsTaxFederalBenefitOfUnrecognizedTaxBenefits	2925000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	60003000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	55666000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	95473000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	99688000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssets	177645000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssets	166469000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	67515000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	74147000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	21903000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	26260000	USD
CY2019Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	267063000	USD
CY2018Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	266876000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	171590000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	167188000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	16538000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	16648000	USD
CY2019Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	188128000	USD
CY2018Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	183836000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	203225000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	203078000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	162763000	USD
CY2019	irm	Income Loss From Continuing Operations Before Income Taxes Canada IncomeLossFromContinuingOperationsBeforeIncomeTaxesCanada	48326000	USD
CY2018	irm	Income Loss From Continuing Operations Before Income Taxes Canada IncomeLossFromContinuingOperationsBeforeIncomeTaxesCanada	53779000	USD
CY2017	irm	Income Loss From Continuing Operations Before Income Taxes Canada IncomeLossFromContinuingOperationsBeforeIncomeTaxesCanada	50019000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	76591000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	153454000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-11805000	USD
CY2019	irm	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Minority Interest And Gain Loss On Disposition Of Real Estate IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsMinorityInterestAndGainLossOnDispositionOfRealEstate	328142000	USD
CY2018	irm	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Minority Interest And Gain Loss On Disposition Of Real Estate IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsMinorityInterestAndGainLossOnDispositionOfRealEstate	410311000	USD
CY2017	irm	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Minority Interest And Gain Loss On Disposition Of Real Estate IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsMinorityInterestAndGainLossOnDispositionOfRealEstate	200977000	USD
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	7262000	USD
CY2018	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	703000	USD
CY2017	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	16345000	USD
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-3356000	USD
CY2018	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-4162000	USD
CY2017	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-12655000	USD
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	3943000	USD
CY2018	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	918000	USD
CY2017	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	3440000	USD
CY2019	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-1126000	USD
CY2018	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	627000	USD
CY2017	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-1276000	USD
CY2019	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	49350000	USD
CY2018	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	45371000	USD
CY2017	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	42532000	USD
CY2019	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	3858000	USD
CY2018	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-704000	USD
CY2017	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-25424000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	59931000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	42753000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	22962000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2017	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350
CY2019	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	68910000	USD
CY2018	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	86165000	USD
CY2017	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	70342000	USD
CY2019	irm	Income Tax Reconciliation Adjustments Related To Reit IncomeTaxReconciliationAdjustmentsRelatedToReit	-40577000	USD
CY2018	irm	Income Tax Reconciliation Adjustments Related To Reit IncomeTaxReconciliationAdjustmentsRelatedToReit	-35165000	USD
CY2017	irm	Income Tax Reconciliation Adjustments Related To Reit IncomeTaxReconciliationAdjustmentsRelatedToReit	-78873000	USD
CY2019	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	2115000	USD
CY2018	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	1599000	USD
CY2017	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	2692000	USD
CY2019	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	6211000	USD
CY2018	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	3568000	USD
CY2017	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-4317000	USD
CY2019	us-gaap	Income Tax Reconciliation Repatriation Of Foreign Earnings IncomeTaxReconciliationRepatriationOfForeignEarnings	0	USD
CY2018	us-gaap	Income Tax Reconciliation Repatriation Of Foreign Earnings IncomeTaxReconciliationRepatriationOfForeignEarnings	0	USD
CY2017	us-gaap	Income Tax Reconciliation Repatriation Of Foreign Earnings IncomeTaxReconciliationRepatriationOfForeignEarnings	29476000	USD
CY2019	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	0	USD
CY2018	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	0	USD
CY2017	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	-4685000	USD
CY2019	irm	Income Tax Reconciliation Reserve Reversal And Audit Settlements IncomeTaxReconciliationReserveReversalAndAuditSettlements	-514000	USD
CY2018	irm	Income Tax Reconciliation Reserve Reversal And Audit Settlements IncomeTaxReconciliationReserveReversalAndAuditSettlements	13985000	USD
CY2017	irm	Income Tax Reconciliation Reserve Reversal And Audit Settlements IncomeTaxReconciliationReserveReversalAndAuditSettlements	9103000	USD
CY2019	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	8562000	USD
CY2018	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	1031000	USD
CY2017	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-9639000	USD
CY2019	us-gaap	Income Tax Reconciliation Deductions Extraterritorial Income Exclusion IncomeTaxReconciliationDeductionsExtraterritorialIncomeExclusion	-14241000	USD
CY2018	us-gaap	Income Tax Reconciliation Deductions Extraterritorial Income Exclusion IncomeTaxReconciliationDeductionsExtraterritorialIncomeExclusion	-903000	USD
CY2017	us-gaap	Income Tax Reconciliation Deductions Extraterritorial Income Exclusion IncomeTaxReconciliationDeductionsExtraterritorialIncomeExclusion	-29325000	USD
CY2019	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-45000	USD
CY2018	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-1363000	USD
CY2017	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-2256000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	59931000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	42753000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	22962000	USD
CY2019	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.183
CY2018	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.104
CY2017	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.114
CY2019	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2019	irm	Income Tax Reconciliation Adjustments Related To Reit IncomeTaxReconciliationAdjustmentsRelatedToReit	-40577000	USD
CY2019	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	8562000	USD
CY2018	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2018	irm	Income Tax Reconciliation Adjustments Related To Reit IncomeTaxReconciliationAdjustmentsRelatedToReit	-35165000	USD
CY2018	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	1031000	USD
CY2018	us-gaap	Income Tax Reconciliation Tax Settlements IncomeTaxReconciliationTaxSettlements	-14000000	USD
CY2017	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350
CY2017	irm	Income Tax Reconciliation Adjustments Related To Reit IncomeTaxReconciliationAdjustmentsRelatedToReit	-78873000	USD
CY2017	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-9639000	USD
CY2017	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-4317000	USD
CY2017	us-gaap	Tax Cuts And Jobs Act Of2017 Income Tax Expense Benefit TaxCutsAndJobsActOf2017IncomeTaxExpenseBenefit	24791000	USD
CY2019	irm	Incrementalforeignearnings Incrementalforeignearnings	279700000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	1780000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	1961000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	289000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	9282000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	7557000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	35068000	USD
CY2019Q4	irm	Unrecognized Tax Benefits Included In Other Long Term Liabilities UnrecognizedTaxBenefitsIncludedInOtherLongTermLiabilities	31992000	USD
CY2019Q4	irm	Unrecognized Tax Benefits Included In Deferred Income Taxes UnrecognizedTaxBenefitsIncludedInDeferredIncomeTaxes	3076000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	35320000	USD
CY2018Q4	irm	Unrecognized Tax Benefits Included In Other Long Term Liabilities UnrecognizedTaxBenefitsIncludedInOtherLongTermLiabilities	32144000	USD
CY2018Q4	irm	Unrecognized Tax Benefits Included In Deferred Income Taxes UnrecognizedTaxBenefitsIncludedInDeferredIncomeTaxes	3176000	USD
CY2016Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	59466000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	4067000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	3368000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	2789000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	2629000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	22950000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	38533000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	3147000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	981000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	2865000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	4462000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	14000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	35320000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	2914000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	1271000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	299000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	4034000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	104000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	35068000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	35068000	USD
CY2019Q4	irm	Unrecognized Tax Benefits Net Of Federal Tax Benefit UnrecognizedTaxBenefitsNetOfFederalTaxBenefit	32311000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	7400000	USD
CY2018	irm	Unrecognized Tax Benefitsthat Would Impact Effective Tax Rate Net Of Federal Tax Benefit UnrecognizedTaxBenefitsthatWouldImpactEffectiveTaxRateNetOfFederalTaxBenefit	4587000	USD
CY2019Q1	us-gaap	Revenues Revenues	1053863000	USD
CY2019Q2	us-gaap	Revenues Revenues	1066907000	USD
CY2019Q3	us-gaap	Revenues Revenues	1062224000	USD
CY2019Q4	us-gaap	Revenues Revenues	1079590000	USD
CY2019Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	158675000	USD
CY2019Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	193115000	USD
CY2019Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	223474000	USD
CY2019Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	206074000	USD
CY2019Q1	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	30476000	USD
CY2019Q2	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	92347000	USD
CY2019Q3	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	108284000	USD
CY2019Q4	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	37104000	USD
CY2019Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-24000	USD
CY2019Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	128000	USD
CY2019Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	0	USD
CY2019Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	0	USD
CY2019Q1	us-gaap	Profit Loss ProfitLoss	30452000	USD
CY2019Q2	us-gaap	Profit Loss ProfitLoss	92475000	USD
CY2019Q3	us-gaap	Profit Loss ProfitLoss	108284000	USD
CY2019Q4	us-gaap	Profit Loss ProfitLoss	37104000	USD
CY2019Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	29561000	USD
CY2019Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	92441000	USD
CY2019Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	107675000	USD
CY2019Q4	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	37700000	USD
CY2019Q1	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.10
CY2019Q2	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.32
CY2019Q3	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.37
CY2019Q4	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.13
CY2019Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0
CY2019Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0
CY2019Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0
CY2019Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0
CY2019Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.10
CY2019Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.32
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.37
CY2019Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.13
CY2019Q1	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.10
CY2019Q2	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.32
CY2019Q3	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.37
CY2019Q4	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.13
CY2019Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0
CY2019Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0
CY2019Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0
CY2019Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0
CY2019Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.10
CY2019Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.32
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.37
CY2019Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.13
CY2019	irm	Real Estate And Accumulated Depreciation Accumulated Depreciation Additions RealEstateAndAccumulatedDepreciationAccumulatedDepreciationAdditions	127194000	USD
CY2018	irm	Real Estate And Accumulated Depreciation Accumulated Depreciation Additions RealEstateAndAccumulatedDepreciationAccumulatedDepreciationAdditions	109264000	USD
CY2019	us-gaap	Real Estate Accumulated Depreciation Real Estate Sold RealEstateAccumulatedDepreciationRealEstateSold	66231000	USD
CY2018Q1	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1042458000	USD
CY2018Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1060823000	USD
CY2018Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1060991000	USD
CY2018Q4	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1061489000	USD
CY2018Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	157119000	USD
CY2018Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	201460000	USD
CY2018Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	195635000	USD
CY2018Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	254053000	USD
CY2018Q1	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	39389000	USD
CY2018Q2	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	92263000	USD
CY2018Q3	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	77349000	USD
CY2018Q4	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	158557000	USD
CY2018Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-462000	USD
CY2018Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-360000	USD
CY2018Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-11605000	USD
CY2018Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	0	USD
CY2018Q1	us-gaap	Profit Loss ProfitLoss	38927000	USD
CY2018Q2	us-gaap	Profit Loss ProfitLoss	91903000	USD
CY2018Q3	us-gaap	Profit Loss ProfitLoss	65744000	USD
CY2018Q4	us-gaap	Profit Loss ProfitLoss	158557000	USD
CY2018Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	38459000	USD
CY2018Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	91761000	USD
CY2018Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	65869000	USD
CY2018Q4	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	157844000	USD
CY2018Q1	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.14
CY2018Q2	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.32
CY2018Q3	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.27
CY2018Q4	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.55
CY2018Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0
CY2018Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0
CY2018Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	-0.04
CY2018Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0
CY2018Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.13
CY2018Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.32
CY2018Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.23
CY2018Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.55
CY2018Q1	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.14
CY2018Q2	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.32
CY2018Q3	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.27
CY2018Q4	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.55
CY2018Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0
CY2018Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0
CY2018Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	-0.04
CY2018Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0
CY2018Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.13
CY2018Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.32
CY2018Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.23
CY2018Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.55
CY2019Q4	irm	Change In Revenue Due To Change In Foreign Exchange Rates ChangeInRevenueDueToChangeInForeignExchangeRates	-63000000	USD
CY2019Q4	us-gaap	Restructuring Charges RestructuringCharges	48600000	USD
CY2019Q4	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	37500000	USD
CY2019Q4	irm	Decreasein Income Tax Expense Benefit DecreaseinIncomeTaxExpenseBenefit	-5100000	USD
CY2018Q4	irm	Decreasein Income Tax Expense Benefit DecreaseinIncomeTaxExpenseBenefit	-11200000	USD
CY2018Q4	irm	Change In Revenue Due To Change In Foreign Exchange Rates ChangeInRevenueDueToChangeInForeignExchangeRates	20000000	USD
CY2019	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	3	segment
CY2019	us-gaap	Revenues Revenues	4262584000	USD
CY2019	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	2681087000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	658201000	USD
CY2019	us-gaap	Depreciation Depreciation	456323000	USD
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	201878000	USD
CY2019	irm	Adjustedearningsbeforeinterestexpensenetprovisionbenefitforincometaxesdepreciationandamortization Adjustedearningsbeforeinterestexpensenetprovisionbenefitforincometaxesdepreciationandamortization	1437605000	USD
CY2019Q4	us-gaap	Assets Assets	13816816000	USD
CY2019	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	882867000	USD
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	692983000	USD
CY2019	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	58237000	USD
CY2019	irm	Paymentsto Acquire Intangible Assetsand Customer Inducements PaymentstoAcquireIntangibleAssetsandCustomerInducements	131647000	USD
CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	4225761000	USD
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	639514000	USD
CY2018	us-gaap	Depreciation Depreciation	452740000	USD
CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	186774000	USD
CY2018	irm	Adjustedearningsbeforeinterestexpensenetprovisionbenefitforincometaxesdepreciationandamortization Adjustedearningsbeforeinterestexpensenetprovisionbenefitforincometaxesdepreciationandamortization	1424824000	USD
CY2018Q4	us-gaap	Assets Assets	11857218000	USD
CY2018	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	2317306000	USD
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	460062000	USD
CY2018	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	1758557000	USD
CY2018	irm	Paymentsto Acquire Intangible Assetsand Customer Inducements PaymentstoAcquireIntangibleAssetsandCustomerInducements	98687000	USD
CY2017	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	3845578000	USD
CY2017	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	522376000	USD
CY2017	us-gaap	Depreciation Depreciation	406283000	USD
CY2017	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	116093000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	268211000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	367558000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	178015000	USD
CY2017	irm	Adjustedearningsbeforeinterestexpensenetprovisionbenefitforincometaxesdepreciationandamortization Adjustedearningsbeforeinterestexpensenetprovisionbenefitforincometaxesdepreciationandamortization	1243573000	USD
CY2017Q4	us-gaap	Assets Assets	10975387000	USD
CY2017	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	638021000	USD
CY2017	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	343131000	USD
CY2017	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	219705000	USD
CY2017	irm	Paymentsto Acquire Intangible Assetsand Customer Inducements PaymentstoAcquireIntangibleAssetsandCustomerInducements	75185000	USD
CY2019	irm	Adjustedearningsbeforeinterestexpensenetprovisionbenefitforincometaxesdepreciationandamortization Adjustedearningsbeforeinterestexpensenetprovisionbenefitforincometaxesdepreciationandamortization	1437605000	USD
CY2018	irm	Adjustedearningsbeforeinterestexpensenetprovisionbenefitforincometaxesdepreciationandamortization Adjustedearningsbeforeinterestexpensenetprovisionbenefitforincometaxesdepreciationandamortization	1424824000	USD
CY2017	irm	Adjustedearningsbeforeinterestexpensenetprovisionbenefitforincometaxesdepreciationandamortization Adjustedearningsbeforeinterestexpensenetprovisionbenefitforincometaxesdepreciationandamortization	1243573000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	59931000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	42753000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	22962000	USD
CY2019	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-33898000	USD
CY2018	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	11692000	USD
CY2017	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-79429000	USD
CY2019	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-419298000	USD
CY2018	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-409648000	USD
CY2017	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-353645000	USD
CY2019	irm	Gain Losson Saleof Assetsand Asset Impairment Charges Excluding Real Estate GainLossonSaleofAssetsandAssetImpairmentChargesExcludingRealEstate	63824000	USD
CY2018	irm	Gain Losson Saleof Assetsand Asset Impairment Charges Excluding Real Estate GainLossonSaleofAssetsandAssetImpairmentChargesExcludingRealEstate	73622000	USD
CY2017	irm	Gain Losson Saleof Assetsand Asset Impairment Charges Excluding Real Estate GainLossonSaleofAssetsandAssetImpairmentChargesExcludingRealEstate	766000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	658201000	USD
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	639514000	USD
CY2017	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	522376000	USD
CY2019	us-gaap	Restructuring Costs RestructuringCosts	48597000	USD
CY2018	us-gaap	Restructuring Costs RestructuringCosts	0	USD
CY2017	us-gaap	Restructuring Costs RestructuringCosts	0	USD
CY2019	us-gaap	Goodwill And Intangible Asset Impairment GoodwillAndIntangibleAssetImpairment	0	USD
CY2018	us-gaap	Goodwill And Intangible Asset Impairment GoodwillAndIntangibleAssetImpairment	0	USD
CY2017	us-gaap	Goodwill And Intangible Asset Impairment GoodwillAndIntangibleAssetImpairment	3011000	USD
CY2019	us-gaap	Revenues Revenues	4262584000	USD
CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	4225761000	USD
CY2017	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	3845578000	USD
CY2019Q4	us-gaap	Noncurrent Assets NoncurrentAssets	12580477000	USD
CY2018Q4	us-gaap	Noncurrent Assets NoncurrentAssets	10649104000	USD
CY2017Q4	us-gaap	Noncurrent Assets NoncurrentAssets	9025072000	USD
CY2019	us-gaap	Revenues Revenues	4262584000	USD
CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	4225761000	USD
CY2017	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	3845578000	USD
CY2019	us-gaap	Business Combination Separately Recognized Transactions Expenses And Losses Recognized BusinessCombinationSeparatelyRecognizedTransactionsExpensesAndLossesRecognized	13293000	USD
CY2018	us-gaap	Business Combination Separately Recognized Transactions Expenses And Losses Recognized BusinessCombinationSeparatelyRecognizedTransactionsExpensesAndLossesRecognized	50665000	USD
CY2017	us-gaap	Business Combination Separately Recognized Transactions Expenses And Losses Recognized BusinessCombinationSeparatelyRecognizedTransactionsExpensesAndLossesRecognized	84901000	USD
CY2019Q4	us-gaap	Contractual Obligation Due In Next Twelve Months ContractualObligationDueInNextTwelveMonths	134127000	USD
CY2019Q4	us-gaap	Contractual Obligation Due In Second Year ContractualObligationDueInSecondYear	68208000	USD
CY2019Q4	us-gaap	Contractual Obligation Due In Third Year ContractualObligationDueInThirdYear	32480000	USD
CY2019Q4	us-gaap	Contractual Obligation Due In Fourth Year ContractualObligationDueInFourthYear	2004000	USD
CY2019Q4	us-gaap	Contractual Obligation Due In Fifth Year ContractualObligationDueInFifthYear	1985000	USD
CY2019Q4	us-gaap	Contractual Obligation Due After Fifth Year ContractualObligationDueAfterFifthYear	340000	USD
CY2019Q4	us-gaap	Contractual Obligation ContractualObligation	239144000	USD
CY2019Q4	us-gaap	Self Insurance Reserve Current SelfInsuranceReserveCurrent	43127000	USD
CY2018Q4	us-gaap	Self Insurance Reserve Current SelfInsuranceReserveCurrent	41328000	USD
CY2017Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.5500
CY2017Q2	us-gaap	Dividends Common Stock DividendsCommonStock	145235000	USD
CY2017Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.5500
CY2017Q3	us-gaap	Dividends Common Stock DividendsCommonStock	145417000	USD
CY2017Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.5500
CY2017Q4	us-gaap	Dividends Common Stock DividendsCommonStock	146772000	USD
CY2017Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.5875
CY2018Q1	us-gaap	Dividends Common Stock DividendsCommonStock	166319000	USD
CY2018Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.5875
CY2018Q2	us-gaap	Dividends Common Stock DividendsCommonStock	167969000	USD
CY2018Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.5875
CY2018Q3	us-gaap	Dividends Common Stock DividendsCommonStock	168078000	USD
CY2018Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.5875
CY2018Q4	us-gaap	Dividends Common Stock DividendsCommonStock	168148000	USD
CY2018Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.6110
CY2019Q1	us-gaap	Dividends Common Stock DividendsCommonStock	174935000	USD
CY2019Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.6110
CY2019Q2	us-gaap	Dividends Common Stock DividendsCommonStock	175242000	USD
CY2019Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.6110
CY2019Q3	us-gaap	Dividends Common Stock DividendsCommonStock	175389000	USD
CY2019Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.6110
CY2019Q4	us-gaap	Dividends Common Stock DividendsCommonStock	175434000	USD
CY2019Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.6185
CY2019	us-gaap	Dividends Dividends	703752000	USD
CY2018	us-gaap	Dividends Dividends	679130000	USD
CY2017	us-gaap	Dividends Dividends	603743000	USD
CY2019	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	2.45
CY2018	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	2.38
CY2017	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	2.27
CY2019Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	280108000	USD
CY2019Q4	irm	Book Valueof Other BookValueofOther	73182000	USD
CY2019	irm	Percentage Of Total Dividends Paid PercentageOfTotalDividendsPaid	1.000
CY2018	irm	Percentage Of Total Dividends Paid PercentageOfTotalDividendsPaid	1.000
CY2017	irm	Percentage Of Total Dividends Paid PercentageOfTotalDividendsPaid	1.000
CY2019Q4	us-gaap	Restructuring Charges RestructuringCharges	48600000	USD
CY2019	us-gaap	Restructuring Charges RestructuringCharges	48597000	USD
CY2019Q4	irm	Number Of Facilities Leased NumberOfFacilitiesLeased	1150	facility
CY2019Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	3856515000	USD
CY2019Q4	irm	Book Valueof Racking Includedin Leased Facilities BookValueofRackingIncludedinLeasedFacilities	1321159000	USD
CY2019Q4	irm	Bookvalue Capital Leases BookvalueCapitalLeases	439166000	USD
CY2019Q4	irm	Real Estate Gross Reconciling Items RealEstateGrossReconcilingItems	2113615000	USD
CY2019Q4	irm	Real Estate Gross RealEstateGross	5970130000	USD
CY2019Q4	irm	Number Of Facilities Leased NumberOfFacilitiesLeased	1150	facility
CY2019Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	1072013000	USD
CY2019Q4	irm	Accumulated Depreciation Non Real Estate Assets AccumulatedDepreciationNonRealEstateAssets	1412193000	USD
CY2019Q4	irm	Accumulated Depreciation Racking In Lease Facilities AccumulatedDepreciationRackingInLeaseFacilities	817069000	USD
CY2019Q4	irm	Accumulated Depreciation Capital Leases AccumulatedDepreciationCapitalLeases	124594000	USD
CY2019Q4	irm	Accumulated Depreciation Reconciling Items AccumulatedDepreciationReconcilingItems	2353856000	USD
CY2019Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	3425869000	USD
CY2019Q4	irm	Number Of Facilities Leased NumberOfFacilitiesLeased	1150	facility
CY2019	srt	Sec Schedule Iii Real Estate Number Of Units SECScheduleIIIRealEstateNumberOfUnits	298	facility
CY2019Q4	srt	Real Estate And Accumulated Depreciation Amount Of Encumbrances RealEstateAndAccumulatedDepreciationAmountOfEncumbrances	1814000	USD
CY2019	irm	Real Estate And Accumulated Depreciation Initial Cost Total RealEstateAndAccumulatedDepreciationInitialCostTotal	2437201000	USD
CY2019Q4	us-gaap	Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Carrying Costs RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts	1419314000	USD
CY2019Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	3856515000	USD
CY2019Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	1072013000	USD
CY2019Q4	irm	Number Of Facilities Leased NumberOfFacilitiesLeased	1150	facility
CY2018Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	3700307000	USD
CY2017Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	2707925000	USD
CY2019	us-gaap	Real Estate Improvements RealEstateImprovements	278508000	USD
CY2018	us-gaap	Real Estate Improvements RealEstateImprovements	155901000	USD
CY2019	us-gaap	Real Estate Other Acquisitions RealEstateOtherAcquisitions	0	USD
CY2018	us-gaap	Real Estate Other Acquisitions RealEstateOtherAcquisitions	918091000	USD
CY2019	us-gaap	Real Estate Other Additions RealEstateOtherAdditions	25077000	USD
CY2018	us-gaap	Real Estate Other Additions RealEstateOtherAdditions	0	USD
CY2019	irm	Sec Schedule Iii Real Estate Foreign Currency Translation Adjustment SECScheduleIIIRealEstateForeignCurrencyTranslationAdjustment	-5978000	USD
CY2018	irm	Sec Schedule Iii Real Estate Foreign Currency Translation Adjustment SECScheduleIIIRealEstateForeignCurrencyTranslationAdjustment	58798000	USD
CY2019	irm	Real Estate And Accumulated Depreciation Real Estate Additions RealEstateAndAccumulatedDepreciationRealEstateAdditions	309563000	USD
CY2018	irm	Real Estate And Accumulated Depreciation Real Estate Additions RealEstateAndAccumulatedDepreciationRealEstateAdditions	1015194000	USD
CY2019	us-gaap	Real Estate Cost Of Real Estate Sold RealEstateCostOfRealEstateSold	153355000	USD
CY2018	us-gaap	Real Estate Cost Of Real Estate Sold RealEstateCostOfRealEstateSold	22812000	USD
CY2019Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	3856515000	USD
CY2018Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	3700307000	USD
CY2018Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	1011050000	USD
CY2017Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	909092000	USD
CY2019	us-gaap	Sec Schedule Iii Real Estate Accumulated Depreciation Depreciation Expense SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense	122366000	USD
CY2018	us-gaap	Sec Schedule Iii Real Estate Accumulated Depreciation Depreciation Expense SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense	125280000	USD
CY2019	us-gaap	Real Estate Accumulated Depreciation Other Additions RealEstateAccumulatedDepreciationOtherAdditions	1314000	USD
CY2018	us-gaap	Real Estate Accumulated Depreciation Other Additions RealEstateAccumulatedDepreciationOtherAdditions	0	USD
CY2019	irm	Sec Schedule Iii Real Estate Accumulated Depreciation Foreign Currency Translation Fluctuations SECScheduleIIIRealEstateAccumulatedDepreciationForeignCurrencyTranslationFluctuations	-3514000	USD
CY2018	irm	Sec Schedule Iii Real Estate Accumulated Depreciation Foreign Currency Translation Fluctuations SECScheduleIIIRealEstateAccumulatedDepreciationForeignCurrencyTranslationFluctuations	16016000	USD
CY2018	us-gaap	Real Estate Accumulated Depreciation Real Estate Sold RealEstateAccumulatedDepreciationRealEstateSold	7306000	USD
CY2019Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	1072013000	USD
CY2018Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	1011050000	USD
CY2018Q4	srt	Real Estate Federal Income Tax Basis RealEstateFederalIncomeTaxBasis	3812000000	USD

Files In Submission

Name	View Source	Status
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0001020569-20-000029-index.html	Edgar Link	pending
0001020569-20-000029.txt	Edgar Link	pending
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$IRM
IRON MOUNTAIN INC Stock $irm

2019 Q4 Form 10-K Financial Statement

#000102056920000029 Filed on February 13, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$IRM IRON MOUNTAIN INC Stock $irm

2019 Q4 Form 10-K Financial Statement

#000102056920000029 Filed on February 13, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$IRM
IRON MOUNTAIN INC Stock $irm