XML 44 R33.htm IDEA: XBRL DOCUMENT v3.20.2

Summary of Significant Accounting Policies Summary of Significant Accounting Policies - Amortization Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets	$ 50,922	$ 50,609	$ 99,806	$ 98,481
Customer relationship and customer inducement intangible assets
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets	29,966	28,283	56,730	56,164
Data center in-place leases and tenant relationships
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets	10,379	11,372	21,732	23,981
Third-party commissions asset and other finite-lived intangible assets
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets	1,758	2,184	4,121	2,941
Permanent withdrawal fees
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets	2,348	2,598	4,813	5,338
Data center above-market leases and data center below-market leases
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets	$ 218	$ 935	$ 435	$ 1,840

X

- Definition

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(2)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274

+ Details

Name:	us-gaap_AmortizationOfIntangibleAssets
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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_FiniteLivedIntangibleAssetsLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=irm_CustomerRelationshipsAndCustomerInducementsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=irm_LeasesAcquiredInPlaceandTenantRelationshipsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_OtherIntangibleAssetsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=irm_PermanentWithdrawalFeesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=irm_DataCenterAboveandBelowMarketLeasesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: