XML 92 R78.htm IDEA: XBRL DOCUMENT v3.10.0.1

Selected Consolidated Financial Statements of Parent, Guarantors, Canada Company and Non-Guarantors - Additional Information (Details)	Dec. 31, 2018
Selected Consolidated Financial Statements of Parent, Guarantors, Canada Company and Non-Guarantors [Abstract]
Ownership percentage of subsidiaries	100.00%

X

- Definition

Selected Consolidated Financial Statements of Parent, Guarantors, Canada Company and Non-Guarantors [Abstract]

+ References

No definition available.

+ Details

Name:	irm_SelectedConsolidatedFinancialStatementsofParentGuarantorsCanadaCompanyandNonGuarantorsAbstract
Namespace Prefix:	irm_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

+ References

No definition available.

+ Details

Name:	us-gaap_MinorityInterestOwnershipPercentageByParent
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant