XML 143 R96.htm IDEA: XBRL DOCUMENT
v3.20.4

SCHEDULE III - SCHEDULE OF REAL ESTATE AND ACCUMULATED DEPRECIATION - Accumulated Depreciation (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | --- | ---
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation Disclosure [Abstract] |  |  |
Accumulated Depreciation of Real Estate Assets, As Reported on Schedule III | $ 1,097,616 | $ 1,072,013 | $ 1,011,050
Add Reconciling Items: |  |  |
Accumulated Depreciation - non-real estate assets | 1,549,986 |  |
Accumulated Depreciation - racking in leased facilities | 941,028 |  |
Accumulated Depreciation - financing leases | 155,264 |  |
Total Reconciling Items | 2,646,278 |  |
Accumulated Depreciation, As Reported on Consolidated Balance Sheet | $ 3,743,894 |  |

X
- Definition Accumulated Depreciation, Finance Leases + References No definition available. + Details
Name: | irm_AccumulatedDepreciationFinanceLeases
Namespace Prefix: | irm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Accumulated Depreciation, Non-Real Estate Assets + References No definition available. + Details
Name: | irm_AccumulatedDepreciationNonRealEstateAssets
Namespace Prefix: | irm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Accumulated Depreciation, Racking In Lease Facilities + References No definition available. + Details
Name: | irm_AccumulatedDepreciationRackingInLeaseFacilities
Namespace Prefix: | irm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Accumulated Depreciation, Reconciling Items + References No definition available. + Details
Name: | irm_AccumulatedDepreciationReconcilingItems
Namespace Prefix: | irm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Accumulated Depreciation, Reconciling Items + References No definition available. + Details
Name: | irm_AccumulatedDepreciationReconcilingItemsAbstract
Namespace Prefix: | irm_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | srt_RealEstateAndAccumulatedDepreciationDisclosureAbstract
Namespace Prefix: | srt_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.14) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of accumulated depreciation pertaining to real estate investments for entities with a substantial portion of business acquiring and holding investment real estate. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 970 -SubTopic 360 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-28(Column F)) -URI http://asc.fasb.org/extlink&oid=120402810&loc=d3e638233-123024 + Details
Name: | us-gaap_RealEstateAccumulatedDepreciation
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant