XML 91 R42.htm IDEA: XBRL DOCUMENT
v3.25.0.1

Summary of Significant Accounting Policies - Concentration of Credit Risk (Details) | 12 Months Ended
--- | ---
Dec. 31, 2024 USD ($)
Cash and Cash Equivalents [Line Items] |
Maximum investment limit in any one financial institution | $ 75,000,000
Investment in single mutual fund | Credit Concentration Risk |
Cash and Cash Equivalents [Line Items] |
Threshold percentage | 1.00%

X
- Definition Represents the maximum investment limit in any one financial institution as per entity's risk management investment policy. + References No definition available. + Details
Name: | irm_ConcentrationOfRiskMaximumInvestmentLimitPerFinancialInstitution
Namespace Prefix: | irm_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Concentration Risk, Threshold Percentage + References No definition available. + Details
Name: | irm_ConcentrationRiskThresholdPercentage
Namespace Prefix: | irm_
Data Type: | dtr-types1:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_CashAndCashEquivalentsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_ConcentrationRiskByBenchmarkAxis=irm_InvestmentInSingleMutualFundMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ConcentrationRiskByTypeAxis=us-gaap_CreditConcentrationRiskMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |