$IRM
IRON MOUNTAIN INC Stock $irm

$irm Overview Financials Valuation SEC Filings Company Website

2020 Form 10-K Financial Statement

#000102056921000067 Filed on February 24, 2021

Income Statement

Concept	2020	2019 Q4	2019
Revenue	$4.147B	$1.080B	$4.263B
YoY Change	-2.71%	1.71%	0.87%
Cost Of Revenue	$1.104B	$455.4M	$1.833B
YoY Change	-39.81%	2.15%	2.19%
Gross Profit	$3.044B	$624.2M	$2.429B
YoY Change	25.3%	1.38%	-0.1%
Gross Profit Margin	73.39%	57.82%	56.99%
Selling, General & Admin	$949.2M	$237.8M	$991.7M
YoY Change	-4.28%	-7.25%	-1.52%
% of Gross Profit	31.19%	38.1%	40.82%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$652.1M	$173.8M	$658.2M
YoY Change	-0.93%	5.4%	2.92%
% of Gross Profit	21.42%	27.84%	27.09%
Operating Expenses	$949.2M	$411.5M	$991.7M
YoY Change	-4.28%	-2.3%	-1.52%
Operating Profit	$934.8M	$206.1M	$781.3M
YoY Change	19.64%	-18.89%	-3.33%
Interest Expense	-$448.4M	-$149.6M	-$444.2M
YoY Change	0.95%	73.15%	12.71%
% of Operating Profit	-47.97%	-72.6%	-56.85%
Other Income/Expense, Net	-$143.5M	-$2.600M	-$33.90M
YoY Change	323.46%	-58.73%	-389.92%
Pretax Income	$276.1M	$53.90M	$203.2M
YoY Change	35.88%	-66.6%	0.07%
Income Tax	$29.61M	$16.80M	$59.93M
% Of Pretax Income	10.72%	31.17%	29.49%
Net Earnings	$343.1M	$37.10M	$268.3M
YoY Change	27.87%	-76.6%	-24.45%
Net Earnings / Revenue	8.27%	3.44%	6.29%
Basic Earnings Per Share	$1.19	$0.13	$0.93
Diluted Earnings Per Share	$1.19	$0.13	$0.93
COMMON SHARES
Basic Shares Outstanding	288.2M shares	287.1M shares	287.0M shares
Diluted Shares Outstanding	288.6M shares		287.7M shares

Balance Sheet

Concept	2020	2019 Q4	2019
SHORT-TERM ASSETS
Cash & Short-Term Investments	$205.0M	$194.0M	$189.0M
YoY Change	8.47%	17.58%	26.0%
Cash & Equivalents	$205.0M	$193.6M	$189.0M
Short-Term Investments
Other Short-Term Assets	$205.0M	$192.0M	$197.0M
YoY Change	4.06%	-2.04%	-6.64%
Inventory
Prepaid Expenses
Receivables	$859.0M	$850.7M	$851.0M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$1.270B	$1.236B	$1.236B
YoY Change	2.75%	2.34%	2.32%
LONG-TERM ASSETS
Property, Plant & Equipment	$6.699B	$4.623B	$6.492B
YoY Change	3.19%	2.97%	44.59%
Goodwill		$4.485B
YoY Change		0.99%
Intangibles		$1.393B
YoY Change
Long-Term Investments
YoY Change
Other Assets	$270.0M	$209.9M	$181.0M
YoY Change	49.17%	-0.97%	1.69%
Total Long-Term Assets	$12.88B	$12.58B	$12.58B
YoY Change	2.37%	18.14%	18.14%
TOTAL ASSETS
Total Short-Term Assets	$1.270B	$1.236B	$1.236B
Total Long-Term Assets	$12.88B	$12.58B	$12.58B
Total Assets	$14.15B	$13.82B	$13.82B
YoY Change	2.4%	16.53%	16.53%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$360.0M	$324.7M	$325.0M
YoY Change	10.77%	1.86%	1.88%
Accrued Expenses	$1.146B	$961.8M	$962.0M
YoY Change	19.13%	23.18%	23.18%
Deferred Revenue		$274.0M
YoY Change		3.48%
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$194.0M	$389.0M	$389.0M
YoY Change	-50.13%	207.75%	208.73%
Total Short-Term Liabilities	$1.996B	$1.950B	$1.950B
YoY Change	2.36%	30.77%	30.78%
LONG-TERM LIABILITIES
Long-Term Debt	$8.569B	$8.276B	$8.343B
YoY Change	2.71%	3.23%	3.17%
Other Long-Term Liabilities	$2.249B	$143.0M	$1.872B
YoY Change	20.14%	28.46%	703.43%
Total Long-Term Liabilities	$10.82B	$8.419B	$10.22B
YoY Change	5.9%	3.58%	22.78%
TOTAL LIABILITIES
Total Short-Term Liabilities	$1.996B	$1.950B	$1.950B
Total Long-Term Liabilities	$10.82B	$8.419B	$10.22B
Total Liabilities	$13.01B	$10.37B	$12.35B
YoY Change	5.34%	7.79%	23.58%
SHAREHOLDERS EQUITY
Retained Earnings
YoY Change
Common Stock		$4.301B
YoY Change		0.83%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$1.137B	$1.464B	$1.464B
YoY Change
Total Liabilities & Shareholders Equity	$14.15B	$13.82B	$13.82B
YoY Change	2.4%	16.53%	16.53%

Cashflow Statement

Concept	2020	2019 Q4	2019
OPERATING ACTIVITIES
Net Income	$343.1M	$37.10M	$268.3M
YoY Change	27.87%	-76.6%	-24.45%
Depreciation, Depletion And Amortization	$652.1M	$173.8M	$658.2M
YoY Change	-0.93%	5.4%	2.92%
Cash From Operating Activities	$987.7M	$318.6M	$966.7M
YoY Change	2.17%	2.44%	3.32%
INVESTING ACTIVITIES
Capital Expenditures	$438.3M	-$164.5M	$693.0M
YoY Change	-36.76%	4.44%	50.63%
Acquisitions	$118.6M		$58.24M
YoY Change	103.62%		-96.69%
Other Investing Activities	$367.8M	$69.20M	$17.60M
YoY Change	1989.77%	79.74%	-101.04%
Cash From Investing Activities	-$85.44M	-$95.30M	-$730.9M
YoY Change	-88.31%	-19.98%	-67.11%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net	$0.00		$0.00
YoY Change			-100.0%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-$886.7M	-218.9M	-$199.0M
YoY Change	345.64%	0.0%	-136.13%
NET CHANGE
Cash From Operating Activities	$987.7M	318.6M	$966.7M
Cash From Investing Activities	-$85.44M	-95.30M	-$730.9M
Cash From Financing Activities	-$886.7M	-218.9M	-$199.0M
Net Change In Cash	$11.51M	4.400M	$28.07M
YoY Change	-59.0%	-116.3%	-103.69%
FREE CASH FLOW
Cash From Operating Activities	$987.7M	$318.6M	$966.7M
Capital Expenditures	$438.3M	-$164.5M	$693.0M
Free Cash Flow	$549.4M	$483.1M	$273.7M
YoY Change	100.75%	3.12%	-42.44%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
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CY2020	dei	Entity File Number EntityFileNumber	1-13045
CY2020	dei	Entity Registrant Name EntityRegistrantName	IRON MOUNTAIN INC
CY2020	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2020	dei	Entity Address Address Line1 EntityAddressAddressLine1	One Federal Street
CY2020	dei	Entity Address City Or Town EntityAddressCityOrTown	Boston
CY2020	dei	Entity Address State Or Province EntityAddressStateOrProvince	MA
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CY2018	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0	USD
CY2020	us-gaap	Gain Loss On Sales Of Assets And Asset Impairment Charges GainLossOnSalesOfAssetsAndAssetImpairmentCharges	363537000	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	73622000	USD
CY2020	us-gaap	Costs And Expenses CostsAndExpenses	3212485000	USD
CY2019	us-gaap	Costs And Expenses CostsAndExpenses	3481246000	USD
CY2018	us-gaap	Costs And Expenses CostsAndExpenses	3417494000	USD
CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	934785000	USD
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	781338000	USD
CY2018	us-gaap	Operating Income Loss OperatingIncomeLoss	808267000	USD
CY2020	us-gaap	Investment Income Interest InvestmentIncomeInterest	8312000	USD
CY2019	us-gaap	Investment Income Interest InvestmentIncomeInterest	6559000	USD
CY2018	us-gaap	Investment Income Interest InvestmentIncomeInterest	6553000	USD
CY2020	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-418535000	USD
CY2019	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-419298000	USD
CY2018	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-409648000	USD
CY2020	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-143545000	USD
CY2019	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-33898000	USD
CY2018	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	11692000	USD
CY2020	irm	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Minority Interest And Gain Loss On Disposition Of Real Estate IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsMinorityInterestAndGainLossOnDispositionOfRealEstate	372705000	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
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	29609000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	59931000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	42753000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	343096000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	343096000	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
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
CY2020	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	0	USD
CY2020	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	0	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
CY2020	us-gaap	Profit Loss ProfitLoss	343096000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	268315000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	355131000	USD
CY2020	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	403000	USD
CY2020	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	403000	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
CY2020	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	342693000	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
CY2020	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	1.19
CY2020	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0
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
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.19
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.93
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.24
CY2020	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	1.19
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
CY2020	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0
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
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.19
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.93
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.23
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	288183000	shares
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
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	288643000	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
CY2020	us-gaap	Profit Loss ProfitLoss	343096000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	268315000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	355131000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	45779000	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
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-39947000	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
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	5832000	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
CY2020	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	348928000	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
CY2020	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	-453000	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
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	349381000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	270460000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	192258000	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	irm	Other Comprehensive Income Loss Derivative Gain Loss Netof Tax OtherComprehensiveIncomeLossDerivativeGainLossNetofTax	-973000	USD
CY2018	us-gaap	Net Income Loss Including Portion Attributable To Nonredeemable Noncontrolling Interest NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest	353784000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1862463000	USD
CY2020	us-gaap	Dividends Common Stock DividendsCommonStock	718136000	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	irm	Other Comprehensive Income Loss Derivative Gain Loss Netof Tax OtherComprehensiveIncomeLossDerivativeGainLossNetofTax	-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
CY2020	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	37995000	USD
CY2020	irm	Adjustmentsto Additional Paidin Capital Changein Valueof Redeemable Noncontrolling Interests AdjustmentstoAdditionalPaidinCapitalChangeinValueofRedeemableNoncontrollingInterests	-3527000	USD
CY2020	irm	Other Comprehensive Income Loss Foreign Currency Transactionand Translation Adjustment Excluding Redeemable Noncontrolling Interest Netof Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionandTranslationAdjustmentExcludingRedeemableNoncontrollingInterestNetofTax	46748000	USD
CY2020	irm	Other Comprehensive Income Loss Derivative Gain Loss Netof Tax OtherComprehensiveIncomeLossDerivativeGainLossNetofTax	-39947000	USD
CY2020	us-gaap	Net Income Loss Including Portion Attributable To Nonredeemable Noncontrolling Interest NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest	342315000	USD
CY2020Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1136729000	USD
CY2020	us-gaap	Profit Loss ProfitLoss	343096000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	268315000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	355131000	USD
CY2020	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	0	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
CY2020	us-gaap	Depreciation Depreciation	447562000	USD
CY2019	us-gaap	Depreciation Depreciation	456323000	USD
CY2018	us-gaap	Depreciation Depreciation	452740000	USD
CY2020	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	17376000	USD
CY2019	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	16740000	USD
CY2018	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	15675000	USD
CY2020	us-gaap	Adjustment For Amortization AdjustmentForAmortization	221883000	USD
CY2019	us-gaap	Adjustment For Amortization AdjustmentForAmortization	218618000	USD
CY2018	us-gaap	Adjustment For Amortization AdjustmentForAmortization	202449000	USD
CY2020	us-gaap	Goodwill And Intangible Asset Impairment GoodwillAndIntangibleAssetImpairment	23000000	USD
CY2019	us-gaap	Goodwill And Intangible Asset Impairment GoodwillAndIntangibleAssetImpairment	0	USD
CY2018	us-gaap	Goodwill And Intangible Asset Impairment GoodwillAndIntangibleAssetImpairment	0	USD
CY2020	irm	Amortizationof Permanent Withdrawal Fees AmortizationofPermanentWithdrawalFees	9878000	USD
CY2019	irm	Amortizationof Permanent Withdrawal Fees AmortizationofPermanentWithdrawalFees	13703000	USD
CY2018	irm	Amortizationof Permanent Withdrawal Fees AmortizationofPermanentWithdrawalFees	16281000	USD
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	37674000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	35654000	USD
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	31167000	USD
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-12986000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-624000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-4239000	USD
CY2020	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-68300000	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
CY2020	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	363537000	USD
CY2019	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	63824000	USD
CY2018	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	74134000	USD
CY2020	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	-78437000	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
CY2020	us-gaap	Increase Decrease In Operating Assets IncreaseDecreaseInOperatingAssets	15443000	USD
CY2019	us-gaap	Increase Decrease In Operating Assets IncreaseDecreaseInOperatingAssets	-5404000	USD
CY2018	us-gaap	Increase Decrease In Operating Assets IncreaseDecreaseInOperatingAssets	36054000	USD
CY2020	us-gaap	Increase Decrease In Operating Liabilities IncreaseDecreaseInOperatingLiabilities	149793000	USD
CY2019	us-gaap	Increase Decrease In Operating Liabilities IncreaseDecreaseInOperatingLiabilities	3352000	USD
CY2018	us-gaap	Increase Decrease In Operating Liabilities IncreaseDecreaseInOperatingLiabilities	-2829000	USD
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	987657000	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
CY2020	us-gaap	Cash Provided By Used In Operating Activities Discontinued Operations CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations	0	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
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	987657000	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
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	438263000	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
CY2020	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	118581000	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
CY2020	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	4346000	USD
CY2019	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	46105000	USD
CY2018	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	63577000	USD
CY2020	irm	Paymentsfor Customer Inducements PaymentsforCustomerInducements	10644000	USD
CY2019	irm	Paymentsfor Customer Inducements PaymentsforCustomerInducements	9371000	USD
CY2018	irm	Paymentsfor Customer Inducements PaymentsforCustomerInducements	8902000	USD
CY2020	irm	Increase Decrease In Contract With Customer Liabilities Net IncreaseDecreaseInContractWithCustomerLiabilitiesNet	-60020000	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
CY2020	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	0	USD
CY2019	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	0	USD
CY2018	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	1019000	USD
CY2018	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	86159000	USD
CY2020	us-gaap	Payments To Acquire Interest In Joint Venture PaymentsToAcquireInterestInJointVenture	18250000	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
CY2020	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	564664000	USD
CY2019	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	166143000	USD
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-85440000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-735946000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-2230128000	USD
CY2020	us-gaap	Cash Provided By Used In Investing Activities Discontinued Operations CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations	0	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
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-85440000	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
CY2020	irm	Repayments Of Secured Debt Short Term And Long Term RepaymentsOfSecuredDebtShortTermAndLongTerm	8604394000	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
CY2020	irm	Proceeds From Issuance Of Secured Debt Short Term And Long Term ProceedsFromIssuanceOfSecuredDebtShortTermAndLongTerm	7939458000	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
CY2020	us-gaap	Early Repayment Of Subordinated Debt EarlyRepaymentOfSubordinatedDebt	2942554000	USD
CY2019	us-gaap	Early Repayment Of Subordinated Debt EarlyRepaymentOfSubordinatedDebt	0	USD
CY2018	us-gaap	Early Repayment Of Subordinated Debt EarlyRepaymentOfSubordinatedDebt	0	USD
CY2020	us-gaap	Proceeds From Issuance Of Senior Long Term Debt ProceedsFromIssuanceOfSeniorLongTermDebt	3465000000	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
CY2020	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	2765000	USD
CY2019	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	1924000	USD
CY2018	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	2523000	USD
CY2020	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	716290000	USD
CY2019	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	704526000	USD
CY2018	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	673635000	USD
CY2020	irm	Proceeds From The Issuance Of Equity Offering ProceedsFromTheIssuanceOfEquityOffering	0	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
CY2020	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	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
CY2020	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	321000	USD
CY2019	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	1027000	USD
CY2018	irm	Payments For Stock Plans PaymentsForStockPlans	1142000	USD
CY2020	us-gaap	Payment Of Financing And Stock Issuance Costs PaymentOfFinancingAndStockIssuanceCosts	25475000	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
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	-886699000	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
CY2020	us-gaap	Cash Provided By Used In Financing Activities Discontinued Operations CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations	0	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	28070000	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
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-886699000	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
CY2020	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-4010000	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
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	11508000	USD
CY2018	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-760214000	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
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	205063000	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
CY2020	us-gaap	Interest Paid Net InterestPaidNet	390332000	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	394984000	USD
CY2018	us-gaap	Interest Paid Net InterestPaidNet	388440000	USD
CY2020	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	43468000	USD
CY2019	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	61691000	USD
CY2018	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	64493000	USD
CY2020	irm	Noncash Investing And Financing Activities Financing Leases NoncashInvestingAndFinancingActivitiesFinancingLeases	55782000	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
CY2020	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	91528000	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
CY2020	irm	Business Combination Consideration Transferred Accrued Purchase Priceand Other Holdbacks BusinessCombinationConsiderationTransferredAccruedPurchasePriceandOtherHoldbacks	0	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
CY2020Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	187867000	USD
CY2019Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	186021000	USD
CY2018Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	181986000	USD
CY2020	us-gaap	Nature Of Operations NatureOfOperations	NATURE OF BUSINESS<div style="margin-bottom:6pt;margin-top:6pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">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 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 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="margin-bottom:6pt;margin-top:6pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">In March 2020, the World Health Organization declared a novel strain of coronavirus (“COVID-19”) a pandemic. This resulted in U.S. federal, state and local and foreign governments and private entities mandating various restrictions, including travel restrictions, restrictions on public gatherings and stay-at-home orders and advisories. In response, we temporarily closed certain of our offices and facilities across the world and implemented certain travel restrictions for our employees. The preventative and protective actions that governments have ordered, or we or our customers have implemented, have resulted in a period of reduced service operations and business disruption for us, our customers and other third parties with which we do business. Currently, certain of the restrictions have been lifted; however, other restrictions still remain and the broader impacts of the COVID-19 pandemic on our financial position, results of operations and cash flows, including impacts to the estimates we use in the preparation of our financial statements, remain uncertain and difficult to predict as information continues to evolve, and the severity and duration of the pandemic remains unknown, as is our visibility of its effect on the markets we serve and our customers within those markets.</span></div><div style="margin-bottom:6pt;margin-top:6pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">In October 2019, we announced a global program designed to better position us for future growth and achievement of our strategic objectives (“Project Summit”). See Note 2.k. and Note 12.</span></div><div style="margin-bottom:6pt;margin-top:6pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">On January 10, 2018, we completed the acquisition of IO Data Centers, LLC (“IODC”). See Note 3.</span></div><div style="margin-bottom:6pt;margin-top:6pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:9pt;font-weight:400;line-height:120%">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.</span></div>
CY2020	us-gaap	Use Of Estimates UseOfEstimates	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.
CY2020	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	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.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 1% of the fund's total assets or in any one financial institution to a maximum of $75,000.
CY2020Q4	irm	Concentration Risk Number Of Triple A Rated Money Market Funds ConcentrationRiskNumberOfTripleARatedMoneyMarketFunds	4	fund
CY2020Q4	irm	Concentration Risk Number Of Global Banks ConcentrationRiskNumberOfGlobalBanks	1	bank
CY2019Q4	irm	Concentration Risk Number Of Triple A Rated Money Market Funds ConcentrationRiskNumberOfTripleARatedMoneyMarketFunds	7	fund
CY2020	irm	Concentration Of Risk Maximum Investment Limit Per Financial Institution ConcentrationOfRiskMaximumInvestmentLimitPerFinancialInstitution	75000000	USD
CY2020Q4	us-gaap	Interest Payable Current InterestPayableCurrent	131448000	USD
CY2019Q4	us-gaap	Interest Payable Current InterestPayableCurrent	97987000	USD
CY2020Q4	us-gaap	Sales And Excise Tax Payable Current And Noncurrent SalesAndExciseTaxPayableCurrentAndNoncurrent	131780000	USD
CY2019Q4	us-gaap	Sales And Excise Tax Payable Current And Noncurrent SalesAndExciseTaxPayableCurrentAndNoncurrent	115352000	USD
CY2020Q4	irm	Accrued Dividends AccruedDividends	187867000	USD
CY2019Q4	irm	Accrued Dividends AccruedDividends	186021000	USD
CY2020Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	250239000	USD
CY2020	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	14321000	USD
CY2019Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	223249000	USD
CY2020Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	444954000	USD
CY2019Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	339143000	USD
CY2020Q4	us-gaap	Accrued Liabilities Current And Noncurrent AccruedLiabilitiesCurrentAndNoncurrent	1146288000	USD
CY2019Q4	us-gaap	Accrued Liabilities Current And Noncurrent AccruedLiabilitiesCurrentAndNoncurrent	961752000	USD
CY2020Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Before Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization	8246337000	USD
CY2019Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Before Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization	8048906000	USD
CY2019	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	15980000	USD
CY2018	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	3732000	USD
CY2020	us-gaap	Capitalized Computer Software Additions CapitalizedComputerSoftwareAdditions	38329000	USD
CY2019	us-gaap	Capitalized Computer Software Additions CapitalizedComputerSoftwareAdditions	34650000	USD
CY2018	us-gaap	Capitalized Computer Software Additions CapitalizedComputerSoftwareAdditions	29407000	USD
CY2020Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	34537000	USD
CY2019Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	30831000	USD
CY2020Q4	irm	Lessee Operating Lease Number Of Options To Extend LesseeOperatingLeaseNumberOfOptionsToExtend	1	renewal_option
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	2196502000	USD
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	1869101000	USD
CY2020Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	310534000	USD
CY2019Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	327215000	USD
CY2020Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	250239000	USD
CY2019Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	223249000	USD
CY2020Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	43149000	USD
CY2019Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	46582000	USD
CY2020Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	2044598000	USD
CY2019Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	1728686000	USD
CY2020Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	323162000	USD
CY2019Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	320600000	USD
CY2020Q4	irm	Operating Lease Right Of Use Asset Real Estate Assets Percent OperatingLeaseRightOfUseAssetRealEstateAssetsPercent	0.99
CY2020Q4	irm	Operating Lease Right Of Use Asset Non Real Estate Assets Percent OperatingLeaseRightOfUseAssetNonRealEstateAssetsPercent	0.01
CY2020Q4	irm	Finance Lease Right Of Use Asset Real Estate Assets Percent FinanceLeaseRightOfUseAssetRealEstateAssetsPercent	0.72
CY2020Q4	irm	Finance Lease Right Of Use Asset Non Real Estate Assets Percent FinanceLeaseRightOfUseAssetNonRealEstateAssetsPercent	0.28
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
CY2020	us-gaap	Operating Lease Cost OperatingLeaseCost	499464000	USD
CY2019	us-gaap	Operating Lease Cost OperatingLeaseCost	459619000	USD
CY2020	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	51629000	USD
CY2019	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	59258000	USD
CY2020	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	19942000	USD
CY2019	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	21031000	USD
CY2020	us-gaap	Variable Lease Cost VariableLeaseCost	111501000	USD
CY2019	us-gaap	Variable Lease Cost VariableLeaseCost	105922000	USD
CY2020Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P11Y1M6D
CY2020Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P11Y6M
CY2019Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P11Y
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	362970000	USD
CY2019Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P11Y7M6D
CY2020Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.069
CY2020Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.059
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
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	380607000	USD
CY2020Q4	us-gaap	Lessor Operating Lease Payments To Be Received Next Twelve Months LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths	6208000	USD
CY2020Q4	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	62669000	USD
CY2020Q4	us-gaap	Lessor Operating Lease Payments To Be Received Two Years LessorOperatingLeasePaymentsToBeReceivedTwoYears	5752000	USD
CY2020Q4	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	54499000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	334893000	USD
CY2020Q4	us-gaap	Lessor Operating Lease Payments To Be Received Three Years LessorOperatingLeasePaymentsToBeReceivedThreeYears	5222000	USD
CY2020Q4	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	45557000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	307039000	USD
CY2020Q4	us-gaap	Lessor Operating Lease Payments To Be Received Four Years LessorOperatingLeasePaymentsToBeReceivedFourYears	3771000	USD
CY2020Q4	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	38051000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	281487000	USD
CY2020Q4	us-gaap	Lessor Operating Lease Payments To Be Received Five Years LessorOperatingLeasePaymentsToBeReceivedFiveYears	1661000	USD
CY2020Q4	us-gaap	Finance Lease Liability Payments Due Year Five FinanceLeaseLiabilityPaymentsDueYearFive	32261000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	1687706000	USD
CY2020Q4	us-gaap	Lessor Operating Lease Payments To Be Received Thereafter LessorOperatingLeasePaymentsToBeReceivedThereafter	6229000	USD
CY2020Q4	us-gaap	Finance Lease Liability Payments Due After Year Five FinanceLeaseLiabilityPaymentsDueAfterYearFive	268542000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	3354702000	USD
CY2020Q4	us-gaap	Lessor Operating Lease Payments To Be Received LessorOperatingLeasePaymentsToBeReceived	28843000	USD
CY2020Q4	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	501579000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	1059865000	USD
CY2020Q4	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	135268000	USD
CY2020Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	2294837000	USD
CY2020Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	366311000	USD
CY2020Q4	irm	Lessee Operating Lease Leases Not Yet Commenced Number Of Leases LesseeOperatingLeaseLeasesNotYetCommencedNumberOfLeases	7	lease
CY2020Q4	irm	Lessee Operating Lease Leases Not Yet Commenced Liability LesseeOperatingLeaseLeasesNotYetCommencedLiability	236200000	USD
CY2020	us-gaap	Operating Lease Payments OperatingLeasePayments	360088000	USD
CY2019	us-gaap	Operating Lease Payments OperatingLeasePayments	338059000	USD
CY2020	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	19942000	USD
CY2019	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	21031000	USD
CY2020	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	47829000	USD
CY2019	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	58033000	USD
CY2020	irm	Operating Lease Modifications And Reassessments OperatingLeaseModificationsAndReassessments	143382000	USD
CY2019	irm	Operating Lease Modifications And Reassessments OperatingLeaseModificationsAndReassessments	108023000	USD
CY2020	irm	Noncash Or Part Noncash Transaction Operating Leases NoncashOrPartNoncashTransactionOperatingLeases	370011000	USD
CY2020	us-gaap	Gain Loss On Sales Of Assets And Asset Impairment Charges GainLossOnSalesOfAssetsAndAssetImpairmentCharges	363537000	USD
CY2019	irm	Noncash Or Part Noncash Transaction Operating Leases NoncashOrPartNoncashTransactionOperatingLeases	170464000	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	73622000	USD
CY2020Q4	us-gaap	Sale And Leaseback Transaction Gain Loss Net SaleAndLeasebackTransactionGainLossNet	342100000	USD
CY2019	us-gaap	Sale And Leaseback Transaction Gain Loss Net SaleAndLeasebackTransactionGainLossNet	67800000	USD
CY2019	irm	Gain Losson Saleof Assetsand Asset Impairment Charges Excluding Real Estate GainLossonSaleofAssetsandAssetImpairmentChargesExcludingRealEstate	36000000	USD
CY2018Q4	irm	Gain Loss On Sale Of Properties Net Of Applicable Income Taxes Approximately GainLossOnSaleOfPropertiesNetOfApplicableIncomeTaxesApproximately	63800000	USD
CY2018Q4	irm	Gain Associated Involuntary Conversion GainAssociatedInvoluntaryConversion	8800000	USD
CY2020Q1	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	23000000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	4485209000	USD
CY2020Q1	us-gaap	Goodwill And Intangible Asset Impairment GoodwillAndIntangibleAssetImpairment	23000	USD
CY2020Q4	us-gaap	Goodwill Goodwill	4557609000	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
CY2020	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	54258000	USD
CY2020	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	23000000	USD
CY2020	us-gaap	Goodwill Purchase Accounting Adjustments GoodwillPurchaseAccountingAdjustments	-3412000	USD
CY2020	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	44554000	USD
CY2020Q4	us-gaap	Goodwill Gross GoodwillGross	4557609000	USD
CY2019Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	135420000	USD
CY2020Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	158420000	USD
CY2018	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	-160702000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent	-973000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-161675000	USD
CY2019	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	11866000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent	-8783000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	3083000	USD
CY2020	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	46635000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent	-39947000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	6688000	USD
CY2020Q4	irm	Capitalized Contract Cost Amortization Expense Next Twelve Months CapitalizedContractCostAmortizationExpenseNextTwelveMonths	38954000	USD
CY2020Q4	irm	Capitalized Contract Cost Amortization Expense Year Two CapitalizedContractCostAmortizationExpenseYearTwo	24861000	USD
CY2020Q4	irm	Capitalized Contract Cost Amortization Expense Year Three CapitalizedContractCostAmortizationExpenseYearThree	18836000	USD
CY2020Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	295785000	USD
CY2019Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	274036000	USD
CY2020Q4	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	35612000	USD
CY2019Q4	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	36029000	USD
CY2020	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Expiration Period SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod	P3Y
CY2020	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	37674000	USD
CY2019	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	35654000	USD
CY2018	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	31167000	USD
CY2020	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	36584000	USD
CY2019	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	33103000	USD
CY2018	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	28998000	USD
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Period1 ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1	P3Y
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized	48253839	shares
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	2818706	shares
CY2020Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	39056000	USD
CY2020	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P1Y8M12D
CY2020	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-29830000	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
CY2020	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-68300000	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
CY2020	irm	Other Nonoperating Income Expense Other Net OtherNonoperatingIncomeExpenseOtherNet	-45415000	USD
CY2019	irm	Other Nonoperating Income Expense Other Net OtherNonoperatingIncomeExpenseOtherNet	-9046000	USD
CY2018	irm	Other Nonoperating Income Expense Other Net OtherNonoperatingIncomeExpenseOtherNet	-3875000	USD
CY2020	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-143545000	USD
CY2019	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-33898000	USD
CY2018	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	11692000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	343096000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	343096000	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
CY2020	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	403000	USD
CY2020	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	403000	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
CY2020	irm	Incomelossfrom Continuing Operations Netof Taxexcluding Portion Attributableto Noncontrolling Interest IncomelossfromContinuingOperationsNetofTaxexcludingPortionAttributabletoNoncontrollingInterest	342693000	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
CY2020	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	0	USD
CY2020	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	0	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
CY2020	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	342693000	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
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	288183000	shares
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
CY2020	irm	Incremental Common Shares Attributable To Share Based Payments Arrangements Stock Option IncrementalCommonSharesAttributableToShareBasedPaymentsArrangementsStockOption	24903	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
CY2020	irm	Incremental Common Shares Attributable To Share Based Payments Restricted Stock And Rs Us And P Us IncrementalCommonSharesAttributableToShareBasedPaymentsRestrictedStockAndRSUsAndPUs	435287	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
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	288643190	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
CY2020	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	1.19
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
CY2018	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	1.28
CY2020	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0
CY2020	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0
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
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.19
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.93
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.24
CY2020	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	1.19
CY2019	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.93
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
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.19
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.93
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.23
CY2020	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	5663981	shares
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
CY2018Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	0	USD
CY2018Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	0	USD
CY2020	us-gaap	Translation Adjustment For Net Investment Hedge Increase Decrease Gross Of Tax TranslationAdjustmentForNetInvestmentHedgeIncreaseDecreaseGrossOfTax	17005000	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
CY2020Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	8797424000	USD
CY2020Q4	us-gaap	Unamortized Debt Issuance Expense UnamortizedDebtIssuanceExpense	94110000	USD
CY2020Q4	us-gaap	Long Term Debt LongTermDebt	8703314000	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
CY2020Q4	irm	Longterm Debt Gross Current Maturities LongtermDebtGrossCurrentMaturities	193759000	USD
CY2020Q4	irm	Unamortizeddebtissuanceexpensenetofcurrentportion Unamortizeddebtissuanceexpensenetofcurrentportion	0	USD
CY2020Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	193759000	USD
CY2019Q4	irm	Longterm Debt Gross Current Maturities LongtermDebtGrossCurrentMaturities	389013000	USD
CY2019Q4	irm	Unamortizeddebtissuanceexpensenetofcurrentportion Unamortizeddebtissuanceexpensenetofcurrentportion	0	USD
CY2019Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	389013000	USD
CY2020Q4	irm	Long Term Debt Gross Netof Current Portion LongTermDebtGrossNetofCurrentPortion	8603665000	USD
CY2020Q4	irm	Unamortized Debt Issuance Expense Net UnamortizedDebtIssuanceExpenseNet	94110000	USD
CY2020Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	8509555000	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
CY2020Q4	irm	Debt Instrument Percentage Of Capital Stock Pledged To Secure Debt DebtInstrumentPercentageOfCapitalStockPledgedToSecureDebt	0.66
CY2020Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	366311000	USD
CY2019Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	367182000	USD
CY2020Q4	irm	Senior Subordinated Notes Repurchase Price Percentage Of Principal Amount Plus Accrued And Unpaid Interest In Event Of Change Of Control SeniorSubordinatedNotesRepurchasePricePercentageOfPrincipalAmountPlusAccruedAndUnpaidInterestInEventOfChangeOfControl	1.01
CY2020Q4	irm	Cash Pool Agreement Number Of Cash Pools CashPoolAgreementNumberOfCashPools	2	cash_pool
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	193759000	USD
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	536811000	USD
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	232264000	USD
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	45680000	USD
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	569005000	USD
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	7221896000	USD
CY2020Q4	irm	Longterm Debt Excluding Unamortized Discount Premiumand Debt Issuance Costsand Current Maturities LongtermDebtExcludingUnamortizedDiscountPremiumandDebtIssuanceCostsandCurrentMaturities	8799415000	USD
CY2020Q4	us-gaap	Debt Instrument Unamortized Discount DebtInstrumentUnamortizedDiscount	1991000	USD
CY2020Q4	us-gaap	Unamortized Debt Issuance Expense UnamortizedDebtIssuanceExpense	94110000	USD
CY2020Q4	us-gaap	Long Term Debt LongTermDebt	8703314000	USD
CY2020Q4	us-gaap	Contractual Obligation Due In Next Twelve Months ContractualObligationDueInNextTwelveMonths	189855000	USD
CY2020Q4	us-gaap	Contractual Obligation Due In Second Year ContractualObligationDueInSecondYear	45339000	USD
CY2020Q4	us-gaap	Contractual Obligation Due In Third Year ContractualObligationDueInThirdYear	31507000	USD
CY2020Q4	us-gaap	Contractual Obligation Due In Fourth Year ContractualObligationDueInFourthYear	28269000	USD
CY2020Q4	us-gaap	Contractual Obligation Due In Fifth Year ContractualObligationDueInFifthYear	25554000	USD
CY2020Q4	us-gaap	Contractual Obligation Due After Fifth Year ContractualObligationDueAfterFifthYear	322000	USD
CY2020Q4	us-gaap	Contractual Obligation ContractualObligation	320846000	USD
CY2020Q4	us-gaap	Self Insurance Reserve Current SelfInsuranceReserveCurrent	47959000	USD
CY2018Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.5875
CY2018Q3	us-gaap	Dividends Common Stock DividendsCommonStock	168148000	USD
CY2018Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.6110
CY2018Q4	us-gaap	Dividends Common Stock DividendsCommonStock	174935000	USD
CY2019Q4	us-gaap	Self Insurance Reserve Current SelfInsuranceReserveCurrent	43127000	USD
CY2018Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.5875
CY2018Q1	us-gaap	Dividends Common Stock DividendsCommonStock	167969000	USD
CY2018Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.5875
CY2018Q2	us-gaap	Dividends Common Stock DividendsCommonStock	168078000	USD
CY2019Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.6110
CY2019Q1	us-gaap	Dividends Common Stock DividendsCommonStock	175242000	USD
CY2019Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.6110
CY2019Q2	us-gaap	Dividends Common Stock DividendsCommonStock	175389000	USD
CY2019Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.6110
CY2019Q3	us-gaap	Dividends Common Stock DividendsCommonStock	175434000	USD
CY2019Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.6185
CY2019Q4	us-gaap	Dividends Common Stock DividendsCommonStock	177687000	USD
CY2020Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.6185
CY2020Q1	us-gaap	Dividends Common Stock DividendsCommonStock	178047000	USD
CY2020Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.6185
CY2020Q2	us-gaap	Dividends Common Stock DividendsCommonStock	178212000	USD
CY2020Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.6185
CY2020Q3	us-gaap	Dividends Common Stock DividendsCommonStock	178224000	USD
CY2020Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.6185
CY2020Q4	us-gaap	Dividends Common Stock DividendsCommonStock	178290000	USD
CY2020	us-gaap	Dividends Dividends	712773000	USD
CY2019	us-gaap	Dividends Dividends	703752000	USD
CY2018	us-gaap	Dividends Dividends	679130000	USD
CY2020	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	2.47
CY2019	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	2.45
CY2018	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	2.38
CY2020	irm	Percentage Of Total Dividends Paid PercentageOfTotalDividendsPaid	1.000
CY2019	irm	Percentage Of Total Dividends Paid PercentageOfTotalDividendsPaid	1.000
CY2018	irm	Percentage Of Total Dividends Paid PercentageOfTotalDividendsPaid	1.000
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	52527000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	53197000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	96710000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	99240000	USD
CY2020Q4	irm	Deferred Tax Assets Tax Federal Benefit Of Unrecognized Tax Benefits DeferredTaxAssetsTaxFederalBenefitOfUnrecognizedTaxBenefits	0	USD
CY2019Q4	irm	Deferred Tax Assets Tax Federal Benefit Of Unrecognized Tax Benefits DeferredTaxAssetsTaxFederalBenefitOfUnrecognizedTaxBenefits	3039000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	46938000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	60003000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	102299000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	95473000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssets	186682000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssets	177645000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	59711000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	67515000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	29265000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	21903000	USD
CY2020Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	275658000	USD
CY2019Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	267063000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	173359000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	171590000	USD
CY2020Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	198377000	USD
CY2019Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	188128000	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
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	44228000	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
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	276145000	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
CY2020	irm	Income Loss From Continuing Operations Before Income Taxes Canada IncomeLossFromContinuingOperationsBeforeIncomeTaxesCanada	52332000	USD
CY2020	irm	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Minority Interest And Gain Loss On Disposition Of Real Estate IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsMinorityInterestAndGainLossOnDispositionOfRealEstate	372705000	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
CY2020	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-625000	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
CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-10424000	USD
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	7262000	USD
CY2018	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	703000	USD
CY2020	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	8834000	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
CY2020	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	2956000	USD
CY2019	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-1126000	USD
CY2018	us-gaap	Income Tax Reconciliation Deductions Extraterritorial Income Exclusion IncomeTaxReconciliationDeductionsExtraterritorialIncomeExclusion	-903000	USD
CY2020	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-4507000	USD
CY2018	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	627000	USD
CY2020	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	50063000	USD
CY2019	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	49350000	USD
CY2018	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	45371000	USD
CY2020	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-21195000	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
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	29609000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	59931000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	42753000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2020	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	78268000	USD
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
CY2020	irm	Income Tax Reconciliation Adjustments Related To Reit IncomeTaxReconciliationAdjustmentsRelatedToReit	-60378000	USD
CY2019	irm	Income Tax Reconciliation Adjustments Related To Reit IncomeTaxReconciliationAdjustmentsRelatedToReit	-40577000	USD
CY2019	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-45000	USD
CY2020	us-gaap	Income Tax Reconciliation Deductions Extraterritorial Income Exclusion IncomeTaxReconciliationDeductionsExtraterritorialIncomeExclusion	-20242000	USD
CY2019	us-gaap	Income Tax Reconciliation Deductions Extraterritorial Income Exclusion IncomeTaxReconciliationDeductionsExtraterritorialIncomeExclusion	-14241000	USD
CY2018	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	1031000	USD
CY2018	irm	Income Tax Reconciliation Adjustments Related To Reit IncomeTaxReconciliationAdjustmentsRelatedToReit	-35165000	USD
CY2020	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	2258000	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
CY2020	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-8337000	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
CY2020	irm	Income Tax Reconciliation Reserve Reversal And Audit Settlements IncomeTaxReconciliationReserveReversalAndAuditSettlements	7409000	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
CY2020	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	9472000	USD
CY2019	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	8562000	USD
CY2018	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-1363000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	29609000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	59931000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	42753000	USD
CY2020	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.079
CY2019	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.183
CY2018	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.104
CY2020	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2020	irm	Income Tax Reconciliation Adjustments Related To Reit IncomeTaxReconciliationAdjustmentsRelatedToReit	-60378000	USD
CY2020	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	9472000	USD
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	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
CY2020	irm	Incremental Foreign Earnings IncrementalForeignEarnings	262379000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	1499000	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
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
CY2020Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	6212000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	9282000	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	25969000	USD
CY2020Q4	irm	Unrecognized Tax Benefits Included In Other Long Term Liabilities UnrecognizedTaxBenefitsIncludedInOtherLongTermLiabilities	23402000	USD
CY2020Q4	irm	Unrecognized Tax Benefits Included In Deferred Income Taxes UnrecognizedTaxBenefitsIncludedInDeferredIncomeTaxes	2567000	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
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
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
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	2907000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	80000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	5617000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	4480000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	1989000	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	25969000	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	25969000	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	2989000	USD
CY2020	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	3	segment
CY2020	irm	Number Of Distinct Offerings NumberOfDistinctOfferings	5	offering
CY2020	us-gaap	Revenues Revenues	4147270000	USD
CY2020	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	2754091000	USD
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1393179000	USD
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	652069000	USD
CY2020	us-gaap	Depreciation Depreciation	447562000	USD
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	204507000	USD
CY2020	irm	Adjusted Earnings Before Interest Expense Net Provision Benefit For Income Taxes Depreciation And Amortization AdjustedEarningsBeforeInterestExpenseNetProvisionBenefitForIncomeTaxesDepreciationAndAmortization	1475721000	USD
CY2020Q4	us-gaap	Assets Assets	14149267000	USD
CY2020	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	631854000	USD
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	438263000	USD
CY2020	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	118581000	USD
CY2020	irm	Paymentsto Acquire Intangible Assetsand Customer Inducements PaymentstoAcquireIntangibleAssetsandCustomerInducements	75010000	USD
CY2019	us-gaap	Revenues Revenues	4262584000	USD
CY2019	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	2681087000	USD
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1581497000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	658201000	USD
CY2019	us-gaap	Depreciation Depreciation	456323000	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
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	201878000	USD
CY2019	irm	Adjusted Earnings Before Interest Expense Net Provision Benefit For Income Taxes Depreciation And Amortization AdjustedEarningsBeforeInterestExpenseNetProvisionBenefitForIncomeTaxesDepreciationAndAmortization	1469009000	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	Revenues Revenues	4225761000	USD
CY2018	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	2622455000	USD
CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1603306000	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	Adjusted Earnings Before Interest Expense Net Provision Benefit For Income Taxes Depreciation And Amortization AdjustedEarningsBeforeInterestExpenseNetProvisionBenefitForIncomeTaxesDepreciationAndAmortization	1458924000	USD
CY2018Q4	us-gaap	Assets Assets	11857218000	USD
CY2018	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	2317306000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	59931000	USD
CY2019	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-419298000	USD
CY2018	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-409648000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	29609000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	343096000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	343096000	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
CY2020	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-418535000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	42753000	USD
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	652069000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	658201000	USD
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	639514000	USD
CY2018	irm	Other Nonoperating Income Expense Net OtherNonoperatingIncomeExpenseNet	11867000	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	73622000	USD
CY2020	irm	Other Nonoperating Income Expense Net OtherNonoperatingIncomeExpenseNet	-133611000	USD
CY2019	irm	Other Nonoperating Income Expense Net OtherNonoperatingIncomeExpenseNet	-25720000	USD
CY2020	us-gaap	Business Combination Separately Recognized Transactions Expenses And Losses Recognized BusinessCombinationSeparatelyRecognizedTransactionsExpensesAndLossesRecognized	0	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
CY2020	us-gaap	Restructuring Charges RestructuringCharges	194396000	USD
CY2019	us-gaap	Restructuring Charges RestructuringCharges	48597000	USD
CY2018	us-gaap	Restructuring Charges RestructuringCharges	0	USD
CY2020	us-gaap	Asset Impairment Charges AssetImpairmentCharges	23000000	USD
CY2019	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0	USD
CY2018	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0	USD
CY2020	us-gaap	Gain Loss On Sales Of Assets And Asset Impairment Charges GainLossOnSalesOfAssetsAndAssetImpairmentCharges	363537000	USD
CY2020	irm	Share Based Payment Arrangement Noncash Expens Net Restructuring ShareBasedPaymentArrangementNoncashExpensNetRestructuring	34272000	USD
CY2019	irm	Share Based Payment Arrangement Noncash Expens Net Restructuring ShareBasedPaymentArrangementNoncashExpensNetRestructuring	36194000	USD
CY2018	irm	Share Based Payment Arrangement Noncash Expens Net Restructuring ShareBasedPaymentArrangementNoncashExpensNetRestructuring	31014000	USD
CY2020	irm	Covid19 Expense COVID19Expense	9285000	USD
CY2019	irm	Covid19 Expense COVID19Expense	0	USD
CY2018	irm	Covid19 Expense COVID19Expense	0	USD
CY2020	irm	Reconciling Related To Unconsolidated Ventures ReconcilingRelatedToUnconsolidatedVentures	1385000	USD
CY2019	irm	Reconciling Related To Unconsolidated Ventures ReconcilingRelatedToUnconsolidatedVentures	3388000	USD
CY2018	irm	Reconciling Related To Unconsolidated Ventures ReconcilingRelatedToUnconsolidatedVentures	3261000	USD
CY2020	irm	Adjusted Earnings Before Interest Expense Net Provision Benefit For Income Taxes Depreciation And Amortization AdjustedEarningsBeforeInterestExpenseNetProvisionBenefitForIncomeTaxesDepreciationAndAmortization	1475721000	USD
CY2019	irm	Adjusted Earnings Before Interest Expense Net Provision Benefit For Income Taxes Depreciation And Amortization AdjustedEarningsBeforeInterestExpenseNetProvisionBenefitForIncomeTaxesDepreciationAndAmortization	1469009000	USD
CY2018	irm	Adjusted Earnings Before Interest Expense Net Provision Benefit For Income Taxes Depreciation And Amortization AdjustedEarningsBeforeInterestExpenseNetProvisionBenefitForIncomeTaxesDepreciationAndAmortization	1458924000	USD
CY2020Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	3830489000	USD
CY2020	us-gaap	Restructuring Charges RestructuringCharges	194396000	USD
CY2019	us-gaap	Restructuring Charges RestructuringCharges	48597000	USD
	us-gaap	Restructuring Charges RestructuringCharges	242993000	USD
CY2020	us-gaap	Restructuring Charges RestructuringCharges	194396000	USD
CY2019	us-gaap	Restructuring Charges RestructuringCharges	48597000	USD
	us-gaap	Restructuring Charges RestructuringCharges	242993000	USD
CY2020Q4	irm	Number Of Facilities Leased NumberOfFacilitiesLeased	1167	facility
CY2020Q4	irm	Book Valueof Racking Includedin Leased Facilities BookValueofRackingIncludedinLeasedFacilities	1448654000	USD
CY2020Q4	irm	Bookvalue Capital Leases BookvalueCapitalLeases	410583000	USD
CY2020Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	287580000	USD
CY2020Q4	srt	Real Estate And Accumulated Depreciation Amount Of Encumbrances RealEstateAndAccumulatedDepreciationAmountOfEncumbrances	805000	USD
CY2020Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	3743894000	USD
CY2020Q4	irm	Number Of Facilities Leased NumberOfFacilitiesLeased	1167	facility
CY2020	srt	Sec Schedule Iii Real Estate Number Of Units SECScheduleIIIRealEstateNumberOfUnits	281	facility
CY2020Q4	irm	Real Estate Gross Reconciling Items RealEstateGrossReconcilingItems	2146817000	USD
CY2020Q4	irm	Real Estate Gross RealEstateGross	5977306000	USD
CY2020Q4	irm	Number Of Facilities Leased NumberOfFacilitiesLeased	1167	facility
CY2020Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	1097616000	USD
CY2020Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	1097616000	USD
CY2020Q4	irm	Accumulated Depreciation Non Real Estate Assets AccumulatedDepreciationNonRealEstateAssets	1549986000	USD
CY2020Q4	irm	Accumulated Depreciation Racking In Lease Facilities AccumulatedDepreciationRackingInLeaseFacilities	941028000	USD
CY2020Q4	irm	Accumulated Depreciation Finance Leases AccumulatedDepreciationFinanceLeases	155264000	USD
CY2020Q4	irm	Accumulated Depreciation Reconciling Items AccumulatedDepreciationReconcilingItems	2646278000	USD
CY2020	irm	Real Estate And Accumulated Depreciation Initial Cost Total RealEstateAndAccumulatedDepreciationInitialCostTotal	2362209000	USD
CY2020Q4	us-gaap	Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Carrying Costs RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts	1468280000	USD
CY2020Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	3830489000	USD
CY2020Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	1097616000	USD
CY2020Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	1097616000	USD
CY2020Q4	irm	Number Of Facilities Leased NumberOfFacilitiesLeased	1167	facility
CY2019Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	3856515000	USD
CY2018Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	3700307000	USD
CY2020	us-gaap	Real Estate Improvements RealEstateImprovements	157239000	USD
CY2019	us-gaap	Real Estate Improvements RealEstateImprovements	278508000	USD
CY2020	us-gaap	Real Estate Other Additions RealEstateOtherAdditions	66978000	USD
CY2019	us-gaap	Real Estate Other Additions RealEstateOtherAdditions	25077000	USD
CY2020	irm	Sec Schedule Iii Real Estate Foreign Currency Translation Adjustment SECScheduleIIIRealEstateForeignCurrencyTranslationAdjustment	10198000	USD
CY2019	irm	Sec Schedule Iii Real Estate Foreign Currency Translation Adjustment SECScheduleIIIRealEstateForeignCurrencyTranslationAdjustment	5978000	USD
CY2020	irm	Real Estate And Accumulated Depreciation Real Estate Additions RealEstateAndAccumulatedDepreciationRealEstateAdditions	234415000	USD
CY2019	irm	Real Estate And Accumulated Depreciation Real Estate Additions RealEstateAndAccumulatedDepreciationRealEstateAdditions	309563000	USD
CY2020	us-gaap	Real Estate Cost Of Real Estate Sold RealEstateCostOfRealEstateSold	178869000	USD
CY2019	us-gaap	Real Estate Cost Of Real Estate Sold RealEstateCostOfRealEstateSold	153355000	USD
CY2020	us-gaap	Real Estate Other Deductions RealEstateOtherDeductions	81572000	USD
CY2019	us-gaap	Real Estate Other Deductions RealEstateOtherDeductions	0	USD
CY2020	irm	Sec Schedule1228 Real Estate Companies Investment In Real Estate Net SECSchedule1228RealEstateCompaniesInvestmentInRealEstateNet	260441000	USD
CY2019	irm	Sec Schedule1228 Real Estate Companies Investment In Real Estate Net SECSchedule1228RealEstateCompaniesInvestmentInRealEstateNet	153355000	USD
CY2020Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	3830489000	USD
CY2019Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	3856515000	USD
CY2019Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	1072013000	USD
CY2018Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	1011050000	USD
CY2020	us-gaap	Sec Schedule Iii Real Estate Accumulated Depreciation Depreciation Expense SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense	123447000	USD
CY2019	us-gaap	Sec Schedule Iii Real Estate Accumulated Depreciation Depreciation Expense SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense	122366000	USD
CY2020	us-gaap	Real Estate Accumulated Depreciation Other Additions RealEstateAccumulatedDepreciationOtherAdditions	0	USD
CY2019	us-gaap	Real Estate Accumulated Depreciation Other Additions RealEstateAccumulatedDepreciationOtherAdditions	1314000	USD
CY2020	irm	Sec Schedule Iii Real Estate Accumulated Depreciation Foreign Currency Translation Fluctuations SECScheduleIIIRealEstateAccumulatedDepreciationForeignCurrencyTranslationFluctuations	8590000	USD
CY2019	irm	Sec Schedule Iii Real Estate Accumulated Depreciation Foreign Currency Translation Fluctuations SECScheduleIIIRealEstateAccumulatedDepreciationForeignCurrencyTranslationFluctuations	3514000	USD
CY2020	irm	Real Estate And Accumulated Depreciation Accumulated Depreciation Additions RealEstateAndAccumulatedDepreciationAccumulatedDepreciationAdditions	132037000	USD
CY2019	irm	Real Estate And Accumulated Depreciation Accumulated Depreciation Additions RealEstateAndAccumulatedDepreciationAccumulatedDepreciationAdditions	127194000	USD
CY2020	us-gaap	Real Estate Accumulated Depreciation Real Estate Sold RealEstateAccumulatedDepreciationRealEstateSold	54978000	USD
CY2019	us-gaap	Real Estate Accumulated Depreciation Real Estate Sold RealEstateAccumulatedDepreciationRealEstateSold	66231000	USD
CY2020	us-gaap	Real Estate Accumulated Depreciation Other Deductions RealEstateAccumulatedDepreciationOtherDeductions	51456000	USD
CY2019	us-gaap	Real Estate Accumulated Depreciation Other Deductions RealEstateAccumulatedDepreciationOtherDeductions	0	USD
CY2020	irm	Sec Schedule1228 Real Estate Companies Investment In Real Estate Accumulated Depreciation Gross SECSchedule1228RealEstateCompaniesInvestmentInRealEstateAccumulatedDepreciationGross	106434000	USD
CY2019	irm	Sec Schedule1228 Real Estate Companies Investment In Real Estate Accumulated Depreciation Gross SECSchedule1228RealEstateCompaniesInvestmentInRealEstateAccumulatedDepreciationGross	66231000	USD
CY2020Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	1097616000	USD
CY2019Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	1072013000	USD
CY2020Q4	srt	Real Estate Federal Income Tax Basis RealEstateFederalIncomeTaxBasis	3769000000	USD

Files In Submission

Name	View Source	Status
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0001020569-21-000067.txt	Edgar Link	pending
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$IRM
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2020 Form 10-K Financial Statement

#000102056921000067 Filed on February 24, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$IRM IRON MOUNTAIN INC Stock $irm

2020 Form 10-K Financial Statement

#000102056921000067 Filed on February 24, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$IRM
IRON MOUNTAIN INC Stock $irm