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Segment Information - Additional Information (Details)	12 Months Ended
	Dec. 31, 2021 market country
Records management
Segment information
Number of countries | country	63
Consumer Storage
Segment information
Number of markets	31
GLOBAL DATA CENTER BUSINESS | United States
Segment information
Number of markets	9
GLOBAL DATA CENTER BUSINESS | Non-US
Segment information
Number of markets	7

X

- Definition

Number Of Markets

+ References

No definition available.

+ Details

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Namespace Prefix:	irm_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

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- Definition

The number of countries in which the entity operates as of balance sheet date.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

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_SegmentReportingInformationLineItems
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Period Type:	duration

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- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=irm_ConsumerStorageMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=irm_GlobalDataCenterBusinessMember
Namespace Prefix:
Data Type:	na
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Period Type:

X

- Details

Name:	srt_StatementGeographicalAxis=country_US
Namespace Prefix:
Data Type:	na
Balance Type:
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- Details

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Namespace Prefix:
Data Type:	na
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