XML 59 R37.htm IDEA: XBRL DOCUMENT
v3.25.1

Summary of Significant Accounting Policies - Contract Fulfillment Assets (Details) - USD ($) $ in Thousands | Mar. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Intake Costs asset |  |
Contract With Customer, Asset And Liabilities [Line Items] |  |
GROSS CARRYING AMOUNT | $ 92,832 | $ 89,057
ACCUMULATED AMORTIZATION | (44,830) | (43,783)
NET CARRYING AMOUNT | 48,002 | 45,274
Commissions asset |  |
Contract With Customer, Asset And Liabilities [Line Items] |  |
GROSS CARRYING AMOUNT | 212,688 | 200,149
ACCUMULATED AMORTIZATION | (83,943) | (78,955)
NET CARRYING AMOUNT | $ 128,745 | $ 121,194

X
- Definition [Line Items] for Contract With Customer, Asset And Liabilities [Table] + References No definition available. + Details
Name: | irm_ContractWithCustomerAssetAndLiabilitiesLineItems
Namespace Prefix: | irm_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of accumulated amortization of asset recognized from cost incurred to obtain or fulfill contract with customer. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 340 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479483/340-40-50-3 + Details
Name: | us-gaap_CapitalizedContractCostAccumulatedAmortization
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount, before accumulated amortization and accumulated impairment loss, of asset recognized from cost incurred to obtain or fulfill contract with customer. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 340 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479483/340-40-50-3 + Details
Name: | us-gaap_CapitalizedContractCostGross
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount, after accumulated amortization and accumulated impairment loss, of asset recognized from cost incurred to obtain or fulfill contract with customer. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 340 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479483/340-40-50-3 + Details
Name: | us-gaap_CapitalizedContractCostNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_CapitalizedContractCostAxis=irm_IntakeCostsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CapitalizedContractCostAxis=irm_CommissionsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |