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4us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrentus-gaap_truecreditinstantfalsefalsefalsefalsefalsefalsefalsetruenegatedLabel1truefalsefalse-324682000-324682falsefalsefalse2truefalsefalse-92887000-92887falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19falsefalsefalse00falsefalsefalse20falsefalsefalse00falsefalsefalse21falsefalsefalse00falsefalsefalse22falsefalsefalse00falsefalsefalse23falsefalsefalse00falsefalsefalse24falsefalsefalse00falsefalsefalse25falsefalsefalse00falsefalsefalse26falsefalsefalse00falsefalsefalse27falsefalsefalse00falsefalsefalse28falsefalsefalse00falsefalsefalse29falsefalsefalse00falsefalsefalse30falsefalsefalse00falsefalsefalse31falsefalsefalse00falsefalsefalse32falsefalsefalse00falsefalsefalse33falsefalsefalse00falsefalsefalse34falsefalsefalse00falsefalsefalse35falsefalsefalse00falsefalsefalse36falsefalsefalse00falsefalsefalse37falsefalsefalse00falsefalsefalse38falsefalsefalse00falsefalsefalse39falsefalsefalse00falsefalsefalse40falsefalsefalse00falsefalsefalse41falsefalsefalse00falsefalsefalse42falsefalsefalse00falsefalsefalse43falsefalsefalse00falsefalsefalse44falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryObligation related to long-term debt (excluding convertible debt) and capital leases, the portion which is due in one year or less in the future.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.20) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 false2Less Current Portion4false 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of the carrying values as of the balance sheet date of all long-term debt, which is debt initially having maturities due after one year from the balance sheet date or beyond the operating cycle, if longer, but excluding the portions thereof scheduled to be repaid within one year or the normal operating cycle, if longer plus capital lease obligations due to be paid more than one year after the balance sheet date.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 6 -Section H true2Long-term Debt, Net of Current Portion5false 4us-gaap_DebtInstrumentFairValueus-gaap_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:monetaryItemTypemonetaryThis element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13433-108611 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13476-108611 false2Fair Value6false 4us-gaap_DebtInstrumentInterestRateStatedPercentageus-gaap_truenainstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsetruefalse00falsefalsefalse2falsetruefalse00falsefalsefalse3falsetruefalse00falsefalsefalse4falsetruefalse00falsefalsefalse5falsetruefalse00falsefalsefalse6falsetruefalse00falsefalsefalse7falsetruefalse00falsefalsefalse8falsetruefalse00falsefalsefalse9falsetruefalse00falsefalsefalse10falsetruefalse00falsefalsefalse11falsetruefalse00falsefalsefalse12falsetruefalse00falsefalsefalse13falsetruefalse00falsefalsefalse14truetruefalse0.07250.0725falsefalsefalse15truetruefalse0.07250.0725falsefalsefalse16truetruefalse0.0750.075falsefalsefalse17truetruefalse0.0750.075falsefalsefalse18truetruefalse0.080.08falsefalsefalse19truetruefalse0.080.08falsefalsefalse20truetruefalse0.06750.0675falsefalsefalse21truetruefalse0.06750.0675falsefalsefalse22truetruefalse0.07750.0775falsefalsefalse23truetruefalse0.07750.0775falsefalsefalse24truetruefalse0.080.08falsefalsefalse25truetruefalse0.080.08falsefalsefalse26truetruefalse0.083750.08375falsefalsefalse27truetruefalse0.083750.08375falsefalsefalse28truetruefalse0.05750.0575falsefalsefalse29truetruefalse0.05750.0575falsefalsefalse30falsetruefalse00falsefalsefalse31falsetruefalse00falsefalsefalse32falsetruefalse00falsefalsefalse33falsetruefalse00falsefalsefalse34falsetruefalse00falsefalsefalse35falsetruefalse00falsefalsefalse36falsetruefalse00falsefalsefalse37falsetruefalse00falsefalsefalse38falsetruefalse00falsefalsefalse39falsetruefalse00falsefalsefalse40falsetruefalse00falsefalsefalse41falsetruefalse00falsefalsefalse42falsetruefalse00falsefalsefalse43falsetruefalse00falsefalsefalse44falsetruefalse00falsefalsefalsenum:percentItemTypepureInterest rate stated in the contractual debt agreement.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 false0Stated Interest Rate (as a percent)7false 4irm_DebtInstrumentPercentageOfCapitalStockPledgedToSecureDebtirm_falsenainstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsetruefalse00falsefalsefalse2falsetruefalse00falsefalsefalse3truetruefalse0.660.66falsefalsefalse4falsetruefalse00falsefalsefalse5falsetruefalse00falsefalsefalse6falsetruefalse00falsefalsefalse7falsetruefalse00falsefalsefalse8falsetruefalse00falsefalsefalse9falsetruefalse00falsefalsefalse10falsetruefalse00falsefalsefalse11falsetruefalse00falsefalsefalse12falsetruefalse00falsefalsefalse13falsetruefalse00falsefalsefalse14falsetruefalse00falsefalsefalse15falsetruefalse00falsefalsefalse16falsetruefalse00falsefalsefalse17falsetruefalse00falsefalsefalse18falsetruefalse00falsefalsefalse19falsetruefalse00falsefalsefalse20falsetruefalse00falsefalsefalse21falsetruefalse00falsefalsefalse22falsetruefalse00falsefalsefalse23falsetruefalse00falsefalsefalse24falsetruefalse00falsefalsefalse25falsetruefalse00falsefalsefalse26falsetruefalse00falsefalsefalse27falsetruefalse00falsefalsefalse28falsetruefalse00falsefalsefalse29falsetruefalse00falsefalsefalse30falsetruefalse00falsefalsefalse31falsetruefalse00falsefalsefalse32falsetruefalse00falsefalsefalse33falsetruefalse00falsefalsefalse34falsetruefalse00falsefalsefalse35falsetruefalse00falsefalsefalse36falsetruefalse00falsefalsefalse37falsetruefalse00falsefalsefalse38falsetruefalse00falsefalsefalse39falsetruefalse00falsefalsefalse40falsetruefalse00falsefalsefalse41falsetruefalse00falsefalsefalse42falsetruefalse00falsefalsefalse43falsetruefalse00falsefalsefalse44falsetruefalse00falsefalsefalsenum:percentItemTypepureThe percentage of capital stock or other equity interests of the first tier foreign subsidiaries of the entity that are pledged to secure certain debt instruments.No definition available.false0Capital Stock of First Tier Foreign Subsidiaries Pledged to Secure Debt (as a percent)8false 4irm_DebtInstrumentOwnershipPercentSubsidiaryGuarantorirm_falsenainstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truetruefalse1.001.00falsefalsefalse2falsetruefalse00falsefalsefalse3falsetruefalse00falsefalsefalse4falsetruefalse00falsefalsefalse5falsetruefalse00falsefalsefalse6falsetruefalse00falsefalsefalse7falsetruefalse00falsefalsefalse8falsetruefalse00falsefalsefalse9falsetruefalse00falsefalsefalse10falsetruefalse00falsefalsefalse11falsetruefalse00falsefalsefalse12falsetruefalse00falsefalsefalse13falsetruefalse00falsefalsefalse14falsetruefalse00falsefalsefalse15falsetruefalse00falsefalsefalse16falsetruefalse00falsefalsefalse17falsetruefalse00falsefalsefalse18falsetruefalse00falsefalsefalse19falsetruefalse00falsefalsefalse20falsetruefalse00falsefalsefalse21falsetruefalse00falsefalsefalse22falsetruefalse00falsefalsefalse23falsetruefalse00falsefalsefalse24falsetruefalse00falsefalsefalse25falsetruefalse00falsefalsefalse26falsetruefalse00falsefalsefalse27falsetruefalse00falsefalsefalse28falsetruefalse00falsefalsefalse29falsetruefalse00falsefalsefalse30falsetruefalse00falsefalsefalse31falsetruefalse00falsefalsefalse32falsetruefalse00falsefalsefalse33falsetruefalse00falsefalsefalse34falsetruefalse00falsefalsefalse35falsetruefalse00falsefalsefalse36falsetruefalse00falsefalsefalse37falsetruefalse00falsefalsefalse38falsetruefalse00falsefalsefalse39falsetruefalse00falsefalsefalse40falsetruefalse00falsefalsefalse41falsetruefalse00falsefalsefalse42falsetruefalse00falsefalsefalse43falsetruefalse00falsefalsefalse44falsetruefalse00falsefalsefalsenum:percentItemTypepureThe entity's percentage ownership in its U.S. subsidiaries, whereby the subsidiary is then considered a guarantor, on a senior subordinated basis, of the Parent Notes.No definition available.false0Ownership in U.S. Subsidiaries that are Considered Guarantor of Parent Notes (as a percent)9false 4us-gaap_LineOfCreditFacilityMaximumBorrowingCapacityus-gaap_truecreditinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19falsefalsefalse00falsefalsefalse20falsefalsefalse00falsefalsefalse21falsefalsefalse00falsefalsefalse22falsefalsefalse00falsefalsefalse23falsefalsefalse00falsefalsefalse24falsefalsefalse00falsefalsefalse25falsefalsefalse00falsefalsefalse26falsefalsefalse00falsefalsefalse27falsefalsefalse00falsefalsefalse28falsefalsefalse00falsefalsefalse29falsefalsefalse00falsefalsefalse30falsefalsefalse00falsefalsefalse31falsefalsefalse00falsefalsefalse32falsefalsefalse00falsefalsefalse33falsefalsefalse00falsefalsefalse34falsefalsefalse00falsefalsefalse35falsefalsefalse00falsefalsefalse36falsefalsefalse00falsefalsefalse37truefalsefalse725000000725000falsefalsefalse38falsefalsefalse00falsefalsefalse39falsefalsefalse00falsefalsefalse40truefalsefalse400000000400000falsefalsefalse41truefalsefalse150000000150000falsefalsefalse42truefalsefalse175000000175000falsefalsefalse43falsefalsefalse00falsefalsefalse44truefalsefalse500000000500000falsefalsefalsexbrli:monetaryItemTypemonetaryMaximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 2, 4 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 false2Maximum Borrowing Capacity10false 4irm_CreditFacilityMaximumBorrowingCapacityOptionalExpandedirm_falsecreditinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19falsefalsefalse00falsefalsefalse20falsefalsefalse00falsefalsefalse21falsefalsefalse00falsefalsefalse22falsefalsefalse00falsefalsefalse23falsefalsefalse00falsefalsefalse24falsefalsefalse00falsefalsefalse25falsefalsefalse00falsefalsefalse26falsefalsefalse00falsefalsefalse27falsefalsefalse00falsefalsefalse28falsefalsefalse00falsefalsefalse29falsefalsefalse00falsefalsefalse30falsefalsefalse00falsefalsefalse31falsefalsefalse00falsefalsefalse32falsefalsefalse00falsefalsefalse33truefalsefalse18000000001800000falsefalsefalse34falsefalsefalse00falsefalsefalse35falsefalsefalse00falsefalsefalse36falsefalsefalse00falsefalsefalse37falsefalsefalse00falsefalsefalse38falsefalsefalse00falsefalsefalse39falsefalsefalse00falsefalsefalse40falsefalsefalse00falsefalsefalse41falsefalsefalse00falsefalsefalse42falsefalsefalse00falsefalsefalse43falsefalsefalse00falsefalsefalse44falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryMaximum borrowing capacity to which the credit facility may be expanded per the terms of the agreement, at the option of the reporting entity.No definition available.false2Optional expanded maximum borrowing capacity11false 4irm_LineOfCreditFacilityNumberOfBanksirm_falsenainstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19falsefalsefalse00falsefalsefalse20falsefalsefalse00falsefalsefalse21falsefalsefalse00falsefalsefalse22falsefalsefalse00falsefalsefalse23falsefalsefalse00falsefalsefalse24falsefalsefalse00falsefalsefalse25falsefalsefalse00falsefalsefalse26falsefalsefalse00falsefalsefalse27falsefalsefalse00falsefalsefalse28falsefalsefalse00falsefalsefalse29falsefalsefalse00falsefalsefalse30falsefalsefalse00falsefalsefalse31falsefalsefalse00falsefalsefalse32falsefalsefalse00falsefalsefalse33falsefalsefalse00falsefalsefalse34falsefalsefalse00falsefalsefalse35falsefalsefalse00falsefalsefalse36falsefalsefalse00falsefalsefalse37truefalsefalse1919falsefalsefalse38falsefalsefalse00falsefalsefalse39falsefalsefalse00falsefalsefalse40falsefalsefalse00falsefalsefalse41falsefalsefalse00falsefalsefalse42falsefalsefalse00falsefalsefalse43falsefalsefalse00falsefalsefalse44falsefalsefalse00falsefalsefalsexbrli:integerItemTypeintegerThe number of banks supporting the revolving credit facility.No definition available.false256Number of Banks Supporting the Credit Facility12false 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borrowed under the credit facility as of the balance sheet date.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 false2Outstanding borrowings under credit facility13false 4us-gaap_LettersOfCreditOutstandingAmountus-gaap_truecreditinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19falsefalsefalse00falsefalsefalse20falsefalsefalse00falsefalsefalse21falsefalsefalse00falsefalsefalse22falsefalsefalse00falsefalsefalse23falsefalsefalse00falsefalsefalse24falsefalsefalse00falsefalsefalse25falsefalsefalse00falsefalsefalse26falsefalsefalse00falsefalsefalse27falsefalsefalse00falsefalsefalse28falsefalsefalse00falsefalsefalse29falsefalsefalse00falsefalsefalse30falsefalsefalse00falsefalsefalse31falsefalsefalse00falsefalsefalse32truefalsefalse23120002312falsefalsefalse33falsefalsefalse00falsefalsefalse34falsefalsefalse00falsefalsefalse35falsefalsefalse00falsefalsefalse36falsefalsefalse00falsefalsefalse37falsefalsefalse00falsefalsefalse38falsefalsefalse00falsefalsefalse39falsefalsefalse00falsefalsefalse40falsefalsefalse00falsefalsefalse41falsefalsefalse00falsefalsefalse42falsefalsefalse00falsefalsefalse43falsefalsefalse00falsefalsefalse44falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryThe total amount of the contingent obligation under letters of credit outstanding as of the reporting date.No definition available.false2Letters of Credit Outstanding14false 4us-gaap_LineOfCreditFacilityRemainingBorrowingCapacityus-gaap_truecreditinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19falsefalsefalse00falsefalsefalse20falsefalsefalse00falsefalsefalse21falsefalsefalse00falsefalsefalse22falsefalsefalse00falsefalsefalse23falsefalsefalse00falsefalsefalse24falsefalsefalse00falsefalsefalse25falsefalsefalse00falsefalsefalse26falsefalsefalse00falsefalsefalse27falsefalsefalse00falsefalsefalse28falsefalsefalse00falsefalsefalse29falsefalsefalse00falsefalsefalse30falsefalsefalse00falsefalsefalse31falsefalsefalse00falsefalsefalse32falsefalsefalse00falsefalsefalse33falsefalsefalse00falsefalsefalse34falsefalsefalse00falsefalsefalse35falsefalsefalse00falsefalsefalse36truefalsefalse534988000534988falsefalsefalse37falsefalsefalse00falsefalsefalse38falsefalsefalse00falsefalsefalse39falsefalsefalse00falsefalsefalse40falsefalsefalse00falsefalsefalse41falsefalsefalse00falsefalsefalse42falsefalsefalse00falsefalsefalse43falsefalsefalse00falsefalsefalse44falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 false2Remaining availability under credit facility15false 4us-gaap_DebtInstrumentInterestRateAtPeriodEndus-gaap_truenainstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsetruefalse00falsefalsefalse2falsetruefalse00falsefalsefalse3falsetruefalse00falsefalsefalse4falsetruefalse00falsefalsefalse5falsetruefalse00falsefalsefalse6falsetruefalse00falsefalsefalse7falsetruefalse00falsefalsefalse8falsetruefalse00falsefalsefalse9falsetruefalse00falsefalsefalse10falsetruefalse00falsefalsefalse11falsetruefalse00falsefalsefalse12falsetruefalse00falsefalsefalse13falsetruefalse00falsefalsefalse14falsetruefalse00falsefalsefalse15falsetruefalse00falsefalsefalse16falsetruefalse00falsefalsefalse17falsetruefalse00falsefalsefalse18falsetruefalse00falsefalsefalse19falsetruefalse00falsefalsefalse20falsetruefalse00falsefalsefalse21falsetruefalse00falsefalsefalse22falsetruefalse00falsefalsefalse23falsetruefalse00falsefalsefalse24falsetruefalse00falsefalsefalse25falsetruefalse00falsefalsefalse26falsetruefalse00falsefalsefalse27falsetruefalse00falsefalsefalse28falsetruefalse00falsefalsefalse29falsetruefalse00falsefalsefalse30falsetruefalse00falsefalsefalse31falsetruefalse00falsefalsefalse32falsetruefalse00falsefalsefalse33falsetruefalse00falsefalsefalse34falsetruefalse00falsefalsefalse35falsetruefalse00falsefalsefalse36truetruefalse0.0250.025falsefalsefalse37falsetruefalse00falsefalsefalse38truetruefalse0.020.02falsefalsefalse39truetruefalse0.040.04falsefalsefalse40falsetruefalse00falsefalsefalse41falsetruefalse00falsefalsefalse42falsetruefalse00falsefalsefalse43truetruefalse0.0200.020falsefalsefalse44falsetruefalse00falsefalsefalsenum:percentItemTypepureThe effective interest rate at the end of the reporting period.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 false0Effective interest rate (as a percent)16false 4us-gaap_LineOfCreditFacilityCommitmentFeeAmountus-gaap_truedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10truefalsefalse546000546USD$falsetruefalse11truefalsefalse449000449USD$falsetruefalse12truefalsefalse11560001156USD$falsetruefalse13truefalsefalse10490001049USD$falsetruefalse14falsefalsefalse00falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19falsefalsefalse00falsefalsefalse20falsefalsefalse00falsefalsefalse21falsefalsefalse00falsefalsefalse22falsefalsefalse00falsefalsefalse23falsefalsefalse00falsefalsefalse24falsefalsefalse00falsefalsefalse25falsefalsefalse00falsefalsefalse26falsefalsefalse00falsefalsefalse27falsefalsefalse00falsefalsefalse28falsefalsefalse00falsefalsefalse29falsefalsefalse00falsefalsefalse30falsefalsefalse00falsefalsefalse31falsefalsefalse00falsefalsefalse32falsefalsefalse00falsefalsefalse33falsefalsefalse00falsefalsefalse34falsefalsefalse00falsefalsefalse35falsefalsefalse00falsefalsefalse36falsefalsefalse00falsefalsefalse37falsefalsefalse00falsefalsefalse38falsefalsefalse00falsefalsefalse39falsefalsefalse00falsefalsefalse40falsefalsefalse00falsefalsefalse41falsefalsefalse00falsefalsefalse42falsefalsefalse00falsefalsefalse43falsefalsefalse00falsefalsefalse44falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of the fee for available but unused credit capacity under the credit facility.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 false2Commitment fees and letters of credit fees17true 4irm_RepaymentsOfLoanAbstractirm_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19falsefalsefalse00falsefalsefalse20falsefalsefalse00falsefalsefalse21falsefalsefalse00falsefalsefalse22falsefalsefalse00falsefalsefalse23falsefalsefalse00falsefalsefalse24falsefalsefalse00falsefalsefalse25falsefalsefalse00falsefalsefalse26falsefalsefalse00falsefalsefalse27falsefalsefalse00falsefalsefalse28falsefalsefalse00falsefalsefalse29falsefalsefalse00falsefalsefalse30falsefalsefalse00falsefalsefalse31falsefalsefalse00falsefalsefalse32falsefalsefalse00falsefalsefalse33falsefalsefalse00falsefalsefalse34falsefalsefalse00falsefalsefalse35falsefalsefalse00falsefalsefalse36falsefalsefalse00falsefalsefalse37falsefalsefalse00falsefalsefalse38falsefalsefalse00falsefalsefalse39falsefalsefalse00falsefalsefalse40falsefalsefalse00falsefalsefalse41falsefalsefalse00falsefalsefalse42falsefalsefalse00falsefalsefalse43falsefalsefalse00falsefalsefalse44falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Repayments Of Loan18false 5irm_LoanRepaymentsAsPercentageOfPrincipalAmountInFirstThreeQuarterlyInstallmentsOfYearFiveirm_falsenainstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsetruefalse00falsefalsefalse2falsetruefalse00falsefalsefalse3falsetruefalse00falsefalsefalse4falsetruefalse00falsefalsefalse5falsetruefalse00falsefalsefalse6falsetruefalse00falsefalsefalse7falsetruefalse00falsefalsefalse8falsetruefalse00falsefalsefalse9falsetruefalse00falsefalsefalse10falsetruefalse00falsefalsefalse11falsetruefalse00falsefalsefalse12falsetruefalse00falsefalsefalse13falsetruefalse00falsefalsefalse14falsetruefalse00falsefalsefalse15falsetruefalse00falsefalsefalse16falsetruefalse00falsefalsefalse17falsetruefalse00falsefalsefalse18falsetruefalse00falsefalsefalse19falsetruefalse00falsefalsefalse20falsetruefalse00falsefalsefalse21falsetruefalse00falsefalsefalse22falsetruefalse00falsefalsefalse23falsetruefalse00falsefalsefalse24falsetruefalse00falsefalsefalse25falsetruefalse00falsefalsefalse26falsetruefalse00falsefalsefalse27falsetruefalse00falsefalsefalse28falsetruefalse00falsefalsefalse29falsetruefalse00falsefalsefalse30falsetruefalse00falsefalsefalse31falsetruefalse00falsefalsefalse32falsetruefalse00falsefalsefalse33falsetruefalse00falsefalsefalse34falsetruefalse00falsefalsefalse35falsetruefalse00falsefalsefalse36falsetruefalse00falsefalsefalse37falsetruefalse00falsefalsefalse38falsetruefalse00falsefalsefalse39falsetruefalse00falsefalsefalse40falsetruefalse00falsefalsefalse41falsetruefalse00falsefalsefalse42falsetruefalse00falsefalsefalse43falsetruefalse00falsefalsefalse44truetruefalse0.100.10falsefalsefalsenum:percentItemTypepureRepresents the loan installment, expressed as a percentage of the original principal amount in the first three quarterly installments of year five of the debt amortization period as defined in the debt agreement.No definition available.false0Loan payment as a percentage of principal in first three quarterly installments of year five19false 5irm_LoanRepaymentsAsPercentageOfPrincipalAmountInFinalQuarterlyInstallmentOfYearFiveirm_falsenainstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsetruefalse00falsefalsefalse2falsetruefalse00falsefalsefalse3falsetruefalse00falsefalsefalse4falsetruefalse00falsefalsefalse5falsetruefalse00falsefalsefalse6falsetruefalse00falsefalsefalse7falsetruefalse00falsefalsefalse8falsetruefalse00falsefalsefalse9falsetruefalse00falsefalsefalse10falsetruefalse00falsefalsefalse11falsetruefalse00falsefalsefalse12falsetruefalse00falsefalsefalse13falsetruefalse00falsefalsefalse14falsetruefalse00falsefalsefalse15falsetruefalse00falsefalsefalse16falsetruefalse00falsefalsefalse17falsetruefalse00falsefalsefalse18falsetruefalse00falsefalsefalse19falsetruefalse00falsefalsefalse20falsetruefalse00falsefalsefalse21falsetruefalse00falsefalsefalse22falsetruefalse00falsefalsefalse23falsetruefalse00falsefalsefalse24falsetruefalse00falsefalsefalse25falsetruefalse00falsefalsefalse26falsetruefalse00falsefalsefalse27falsetruefalse00falsefalsefalse28falsetruefalse00falsefalsefalse29falsetruefalse00falsefalsefalse30falsetruefalse00falsefalsefalse31falsetruefalse00falsefalsefalse32falsetruefalse00falsefalsefalse33falsetruefalse00falsefalsefalse34falsetruefalse00falsefalsefalse35falsetruefalse00falsefalsefalse36falsetruefalse00falsefalsefalse37falsetruefalse00falsefalsefalse38falsetruefalse00falsefalsefalse39falsetruefalse00falsefalsefalse40falsetruefalse00falsefalsefalse41falsetruefalse00falsefalsefalse42falsetruefalse00falsefalsefalse43falsetruefalse00falsefalsefalse44truetruefalse0.350.35falsefalsefalsenum:percentItemTypepureRepresents the loan installment, expressed as a percentage of the original principal amount in the final quarterly installment of year five of the debt amortization period as defined in the debt agreement.No definition available.false0Loan payment as a percentage of principal in final quarterly installment of year five20false 5irm_LoanRepaymentsAsPercentageOfPrincipalAmountInYearOneirm_falsenainstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsetruefalse00falsefalsefalse2falsetruefalse00falsefalsefalse3falsetruefalse00falsefalsefalse4falsetruefalse00falsefalsefalse5falsetruefalse00falsefalsefalse6falsetruefalse00falsefalsefalse7falsetruefalse00falsefalsefalse8falsetruefalse00falsefalsefalse9falsetruefalse00falsefalsefalse10falsetruefalse00falsefalsefalse11falsetruefalse00falsefalsefalse12falsetruefalse00falsefalsefalse13falsetruefalse00falsefalsefalse14falsetruefalse00falsefalsefalse15falsetruefalse00falsefalsefalse16falsetruefalse00falsefalsefalse17falsetruefalse00falsefalsefalse18falsetruefalse00falsefalsefalse19falsetruefalse00falsefalsefalse20falsetruefalse00falsefalsefalse21falsetruefalse00falsefalsefalse22falsetruefalse00falsefalsefalse23falsetruefalse00falsefalsefalse24falsetruefalse00falsefalsefalse25falsetruefalse00falsefalsefalse26falsetruefalse00falsefalsefalse27falsetruefalse00falsefalsefalse28falsetruefalse00falsefalsefalse29falsetruefalse00falsefalsefalse30falsetruefalse00falsefalsefalse31falsetruefalse00falsefalsefalse32falsetruefalse00falsefalsefalse33falsetruefalse00falsefalsefalse34falsetruefalse00falsefalsefalse35falsetruefalse00falsefalsefalse36falsetruefalse00falsefalsefalse37falsetruefalse00falsefalsefalse38falsetruefalse00falsefalsefalse39falsetruefalse00falsefalsefalse40falsetruefalse00falsefalsefalse41falsetruefalse00falsefalsefalse42falsetruefalse00falsefalsefalse43falsetruefalse00falsefalsefalse44truetruefalse0.050.05falsefalsefalsenum:percentItemTypepureRepresents the loan installment, expressed as a percentage of the original principal amount based on year one of the debt amortization period as defined in the debt agreement.No definition available.false0June 30, 2012 (as a percent)21false 5irm_LoanRepaymentsAsPercentageOfPrincipalAmountInYearTwoirm_falsenainstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsetruefalse00falsefalsefalse2falsetruefalse00falsefalsefalse3falsetruefalse00falsefalsefalse4falsetruefalse00falsefalsefalse5falsetruefalse00falsefalsefalse6falsetruefalse00falsefalsefalse7falsetruefalse00falsefalsefalse8falsetruefalse00falsefalsefalse9falsetruefalse00falsefalsefalse10falsetruefalse00falsefalsefalse11falsetruefalse00falsefalsefalse12falsetruefalse00falsefalsefalse13falsetruefalse00falsefalsefalse14falsetruefalse00falsefalsefalse15falsetruefalse00falsefalsefalse16falsetruefalse00falsefalsefalse17falsetruefalse00falsefalsefalse18falsetruefalse00falsefalsefalse19falsetruefalse00falsefalsefalse20falsetruefalse00falsefalsefalse21falsetruefalse00falsefalsefalse22falsetruefalse00falsefalsefalse23falsetruefalse00falsefalsefalse24falsetruefalse00falsefalsefalse25falsetruefalse00falsefalsefalse26falsetruefalse00falsefalsefalse27falsetruefalse00falsefalsefalse28falsetruefalse00falsefalsefalse29falsetruefalse00falsefalsefalse30falsetruefalse00falsefalsefalse31falsetruefalse00falsefalsefalse32falsetruefalse00falsefalsefalse33falsetruefalse00falsefalsefalse34falsetruefalse00falsefalsefalse35falsetruefalse00falsefalsefalse36falsetruefalse00falsefalsefalse37falsetruefalse00falsefalsefalse38falsetruefalse00falsefalsefalse39falsetruefalse00falsefalsefalse40falsetruefalse00falsefalsefalse41falsetruefalse00falsefalsefalse42falsetruefalse00falsefalsefalse43falsetruefalse00falsefalsefalse44truetruefalse0.050.05falsefalsefalsenum:percentItemTypepureRepresents the loan installment, expressed as a percentage of the original principal amount based on year two of the debt amortization period as defined in the debt agreement.No definition available.false0June 30, 2013 (as a percent)22false 5irm_LoanRepaymentsAsPercentageOfPrincipalAmountInYearThreeirm_falsenainstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsetruefalse00falsefalsefalse2falsetruefalse00falsefalsefalse3falsetruefalse00falsefalsefalse4falsetruefalse00falsefalsefalse5falsetruefalse00falsefalsefalse6falsetruefalse00falsefalsefalse7falsetruefalse00falsefalsefalse8falsetruefalse00falsefalsefalse9falsetruefalse00falsefalsefalse10falsetruefalse00falsefalsefalse11falsetruefalse00falsefalsefalse12falsetruefalse00falsefalsefalse13falsetruefalse00falsefalsefalse14falsetruefalse00falsefalsefalse15falsetruefalse00falsefalsefalse16falsetruefalse00falsefalsefalse17falsetruefalse00falsefalsefalse18falsetruefalse00falsefalsefalse19falsetruefalse00falsefalsefalse20falsetruefalse00falsefalsefalse21falsetruefalse00falsefalsefalse22falsetruefalse00falsefalsefalse23falsetruefalse00falsefalsefalse24falsetruefalse00falsefalsefalse25falsetruefalse00falsefalsefalse26falsetruefalse00falsefalsefalse27falsetruefalse00falsefalsefalse28falsetruefalse00falsefalsefalse29falsetruefalse00falsefalsefalse30falsetruefalse00falsefalsefalse31falsetruefalse00falsefalsefalse32falsetruefalse00falsefalsefalse33falsetruefalse00falsefalsefalse34falsetruefalse00falsefalsefalse35falsetruefalse00falsefalsefalse36falsetruefalse00falsefalsefalse37falsetruefalse00falsefalsefalse38falsetruefalse00falsefalsefalse39falsetruefalse00falsefalsefalse40falsetruefalse00falsefalsefalse41falsetruefalse00falsefalsefalse42falsetruefalse00falsefalsefalse43falsetruefalse00falsefalsefalse44truetruefalse0.100.10falsefalsefalsenum:percentItemTypepureRepresents the loan installment, expressed as a percentage of the original principal amount based on year three of the debt amortization period as defined in the debt agreement.No definition available.false0June 30, 2014 (as a percent)23false 5irm_LoanRepaymentsAsPercentageOfPrincipalAmountInYearFourirm_falsenainstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsetruefalse00falsefalsefalse2falsetruefalse00falsefalsefalse3falsetruefalse00falsefalsefalse4falsetruefalse00falsefalsefalse5falsetruefalse00falsefalsefalse6falsetruefalse00falsefalsefalse7falsetruefalse00falsefalsefalse8falsetruefalse00falsefalsefalse9falsetruefalse00falsefalsefalse10falsetruefalse00falsefalsefalse11falsetruefalse00falsefalsefalse12falsetruefalse00falsefalsefalse13falsetruefalse00falsefalsefalse14falsetruefalse00falsefalsefalse15falsetruefalse00falsefalsefalse16falsetruefalse00falsefalsefalse17falsetruefalse00falsefalsefalse18falsetruefalse00falsefalsefalse19falsetruefalse00falsefalsefalse20falsetruefalse00falsefalsefalse21falsetruefalse00falsefalsefalse22falsetruefalse00falsefalsefalse23falsetruefalse00falsefalsefalse24falsetruefalse00falsefalsefalse25falsetruefalse00falsefalsefalse26falsetruefalse00falsefalsefalse27falsetruefalse00falsefalsefalse28falsetruefalse00falsefalsefalse29falsetruefalse00falsefalsefalse30falsetruefalse00falsefalsefalse31falsetruefalse00falsefalsefalse32falsetruefalse00falsefalsefalse33falsetruefalse00falsefalsefalse34falsetruefalse00falsefalsefalse35falsetruefalse00falsefalsefalse36falsetruefalse00falsefalsefalse37falsetruefalse00falsefalsefalse38falsetruefalse00falsefalsefalse39falsetruefalse00falsefalsefalse40falsetruefalse00falsefalsefalse41falsetruefalse00falsefalsefalse42falsetruefalse00falsefalsefalse43falsetruefalse00falsefalsefalse44truetruefalse0.150.15falsefalsefalsenum:percentItemTypepureRepresents the loan installment, expressed as a percentage of the original principal amount based on year four of the debt amortization period as defined in the debt agreement.No definition available.false0June 30, 2015 (as a percent)24false 5irm_LoanRepaymentsAsPercentageOfPrincipalAmountInYearFiveirm_falsenainstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsetruefalse00falsefalsefalse2falsetruefalse00falsefalsefalse3falsetruefalse00falsefalsefalse4falsetruefalse00falsefalsefalse5falsetruefalse00falsefalsefalse6falsetruefalse00falsefalsefalse7falsetruefalse00falsefalsefalse8falsetruefalse00falsefalsefalse9falsetruefalse00falsefalsefalse10falsetruefalse00falsefalsefalse11falsetruefalse00falsefalsefalse12falsetruefalse00falsefalsefalse13falsetruefalse00falsefalsefalse14falsetruefalse00falsefalsefalse15falsetruefalse00falsefalsefalse16falsetruefalse00falsefalsefalse17falsetruefalse00falsefalsefalse18falsetruefalse00falsefalsefalse19falsetruefalse00falsefalsefalse20falsetruefalse00falsefalsefalse21falsetruefalse00falsefalsefalse22falsetruefalse00falsefalsefalse23falsetruefalse00falsefalsefalse24falsetruefalse00falsefalsefalse25falsetruefalse00falsefalsefalse26falsetruefalse00falsefalsefalse27falsetruefalse00falsefalsefalse28falsetruefalse00falsefalsefalse29falsetruefalse00falsefalsefalse30falsetruefalse00falsefalsefalse31falsetruefalse00falsefalsefalse32falsetruefalse00falsefalsefalse33falsetruefalse00falsefalsefalse34falsetruefalse00falsefalsefalse35falsetruefalse00falsefalsefalse36falsetruefalse00falsefalsefalse37falsetruefalse00falsefalsefalse38falsetruefalse00falsefalsefalse39falsetruefalse00falsefalsefalse40falsetruefalse00falsefalsefalse41falsetruefalse00falsefalsefalse42falsetruefalse00falsefalsefalse43falsetruefalse00falsefalsefalse44truetruefalse0.650.65falsefalsefalsenum:percentItemTypepureRepresents the loan installment, expressed as a percentage of the original principal amount based on year five of the debt amortization period as defined in the debt agreement.No definition available.false0June 27, 2016 (as a percent)25true 4irm_DebtCovenantsAbstractirm_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19falsefalsefalse00falsefalsefalse20falsefalsefalse00falsefalsefalse21falsefalsefalse00falsefalsefalse22falsefalsefalse00falsefalsefalse23falsefalsefalse00falsefalsefalse24falsefalsefalse00falsefalsefalse25falsefalsefalse00falsefalsefalse26falsefalsefalse00falsefalsefalse27falsefalsefalse00falsefalsefalse28falsefalsefalse00falsefalsefalse29falsefalsefalse00falsefalsefalse30falsefalsefalse00falsefalsefalse31falsefalsefalse00falsefalsefalse32falsefalsefalse00falsefalsefalse33falsefalsefalse00falsefalsefalse34falsefalsefalse00falsefalsefalse35falsefalsefalse00falsefalsefalse36falsefalsefalse00falsefalsefalse37falsefalsefalse00falsefalsefalse38falsefalsefalse00falsefalsefalse39falsefalsefalse00falsefalsefalse40falsefalsefalse00falsefalsefalse41falsefalsefalse00falsefalsefalse42falsefalsefalse00falsefalsefalse43falsefalsefalse00falsefalsefalse44falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Debt covenants26false 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credit and term leverage ratio at the end of the reporting period.No definition available.false0Revolving Credit and Term Leverage Ratio27false 5irm_DebtInstrumentCovenantLineOfCreditAndTermLeverageRatioMaximumirm_falsenainstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8truefalsefalse5.505.50falsefalsefalse9truefalsefalse5.505.50falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19falsefalsefalse00falsefalsefalse20falsefalsefalse00falsefalsefalse21falsefalsefalse00falsefalsefalse22falsefalsefalse00falsefalsefalse23falsefalsefalse00falsefalsefalse24falsefalsefalse00falsefalsefalse25falsefalsefalse00falsefalsefalse26falsefalsefalse00falsefalsefalse27falsefalsefalse00falsefalsefalse28falsefalsefalse00falsefalsefalse29falsefalsefalse00falsefalsefalse30falsefalsefalse00falsefalsefalse31falsefalsefalse00falsefalsefalse32falsefalsefalse00falsefalsefalse33falsefalsefalse00falsefalsefalse34falsefalsefalse00falsefalsefalse35falsefalsefalse00falsefalsefalse36falsefalsefalse00falsefalsefalse37falsefalsefalse00falsefalsefalse38falsefalsefalse00falsefalsefalse39falsefalsefalse00falsefalsefalse40falsefalsefalse00falsefalsefalse41falsefalsefalse00falsefalsefalse42falsefalsefalse00falsefalsefalse43falsefalsefalse00falsefalsefalse44falsefalsefalse00falsefalsefalsexbrli:pureItemTypepureThe maximum allowable revolving credit and term leverage ratio, as specified in the debt agreement covenants.No definition available.false0Revolving Credit and Term Leverage Ratio, Maximum Allowable28false 5irm_DebtInstrumentCovenantIndenturesBondLeverageRatioirm_falsenainstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8truefalsefalse4.924.92falsefalsefalse9truefalsefalse5.335.33falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19falsefalsefalse00falsefalsefalse20falsefalsefalse00falsefalsefalse21falsefalsefalse00falsefalsefalse22falsefalsefalse00falsefalsefalse23falsefalsefalse00falsefalsefalse24falsefalsefalse00falsefalsefalse25falsefalsefalse00falsefalsefalse26falsefalsefalse00falsefalsefalse27falsefalsefalse00falsefalsefalse28falsefalsefalse00falsefalsefalse29falsefalsefalse00falsefalsefalse30falsefalsefalse00falsefalsefalse31falsefalsefalse00falsefalsefalse32falsefalsefalse00falsefalsefalse33falsefalsefalse00falsefalsefalse34falsefalsefalse00falsefalsefalse35falsefalsefalse00falsefalsefalse36falsefalsefalse00falsefalsefalse37falsefalsefalse00falsefalsefalse38falsefalsefalse00falsefalsefalse39falsefalsefalse00falsefalsefalse40falsefalsefalse00falsefalsefalse41falsefalsefalse00falsefalsefalse42falsefalsefalse00falsefalsefalse43falsefalsefalse00falsefalsefalse44falsefalsefalse00falsefalsefalsexbrli:pureItemTypepureThe bond leverage ratio, per the indentures, at the end of the reporting period.No definition available.false0Bond Leverage Ratio, per Indentures29false 5irm_DebtInstrumentCovenantBondLeverageRatioMaximumirm_falsenainstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8truefalsefalse6.506.50falsefalsefalse9truefalsefalse6.506.50falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19falsefalsefalse00falsefalsefalse20falsefalsefalse00falsefalsefalse21falsefalsefalse00falsefalsefalse22falsefalsefalse00falsefalsefalse23falsefalsefalse00falsefalsefalse24falsefalsefalse00falsefalsefalse25falsefalsefalse00falsefalsefalse26falsefalsefalse00falsefalsefalse27falsefalsefalse00falsefalsefalse28falsefalsefalse00falsefalsefalse29falsefalsefalse00falsefalsefalse30falsefalsefalse00falsefalsefalse31falsefalsefalse00falsefalsefalse32falsefalsefalse00falsefalsefalse33falsefalsefalse00falsefalsefalse34falsefalsefalse00falsefalsefalse35falsefalsefalse00falsefalsefalse36falsefalsefalse00falsefalsefalse37falsefalsefalse00falsefalsefalse38falsefalsefalse00falsefalsefalse39falsefalsefalse00falsefalsefalse40falsefalsefalse00falsefalsefalse41falsefalsefalse00falsefalsefalse42falsefalsefalse00falsefalsefalse43falsefalsefalse00falsefalsefalse44falsefalsefalse00falsefalsefalsexbrli:pureItemTypepureThe maximum allowable bond leverage ratio per the indentures, as specified in the debt agreement covenants.No definition available.false0Bond Leverage Ratio, per Indentures, Maximum Allowable30false 5irm_DebtInstrumentCovenantLineOfCreditAndTermLoanFixedChargeCoverageRatioirm_falsenainstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8truefalsefalse1.371.37falsefalsefalse9truefalsefalse1.331.33falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19falsefalsefalse00falsefalsefalse20falsefalsefalse00falsefalsefalse21falsefalsefalse00falsefalsefalse22falsefalsefalse00falsefalsefalse23falsefalsefalse00falsefalsefalse24falsefalsefalse00falsefalsefalse25falsefalsefalse00falsefalsefalse26falsefalsefalse00falsefalsefalse27falsefalsefalse00falsefalsefalse28falsefalsefalse00falsefalsefalse29falsefalsefalse00falsefalsefalse30falsefalsefalse00falsefalsefalse31falsefalsefalse00falsefalsefalse32falsefalsefalse00falsefalsefalse33falsefalsefalse00falsefalsefalse34falsefalsefalse00falsefalsefalse35falsefalsefalse00falsefalsefalse36falsefalsefalse00falsefalsefalse37falsefalsefalse00falsefalsefalse38falsefalsefalse00falsefalsefalse39falsefalsefalse00falsefalsefalse40falsefalsefalse00falsefalsefalse41falsefalsefalse00falsefalsefalse42falsefalsefalse00falsefalsefalse43falsefalsefalse00falsefalsefalse44falsefalsefalse00falsefalsefalsexbrli:pureItemTypepureRepresents the entity's revolving credit and term loan fixed charge coverage ratio at the end of the reporting period.No definition available.false0Revolving Credit and Term Loan Fixed Charge Coverage Ratio31false 5irm_DebtInstrumentCovenantLineOfCreditAndTermLoanFixedChargeCoverageRatioMinimumirm_falsenainstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8truefalsefalse1.001.00falsefalsefalse9truefalsefalse1.201.20falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19falsefalsefalse00falsefalsefalse20falsefalsefalse00falsefalsefalse21falsefalsefalse00falsefalsefalse22falsefalsefalse00falsefalsefalse23falsefalsefalse00falsefalsefalse24falsefalsefalse00falsefalsefalse25falsefalsefalse00falsefalsefalse26falsefalsefalse00falsefalsefalse27falsefalsefalse00falsefalsefalse28falsefalsefalse00falsefalsefalse29falsefalsefalse00falsefalsefalse30falsefalsefalse00falsefalsefalse31falsefalsefalse00falsefalsefalse32falsefalsefalse00falsefalsefalse33falsefalsefalse00falsefalsefalse34falsefalsefalse00falsefalsefalse35falsefalsefalse00falsefalsefalse36falsefalsefalse00falsefalsefalse37falsefalsefalse00falsefalsefalse38falsefalsefalse00falsefalsefalse39falsefalsefalse00falsefalsefalse40falsefalsefalse00falsefalsefalse41falsefalsefalse00falsefalsefalse42falsefalsefalse00falsefalsefalse43falsefalsefalse00falsefalsefalse44falsefalsefalse00falsefalsefalsexbrli:pureItemTypepureRepresents the entity's minimum allowable revolving credit and term loan fixed charge coverage ratio, as specified in debt agreement covenants.No definition available.false0Revolving Credit and Term Loan Fixed Charge Coverage Ratio, Minimum Allowable32false 4us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentageus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsetruefalse00falsefalsefalse2falsetruefalse00falsefalsefalse3falsetruefalse00falsefalsefalse4falsetruefalse00falsefalsefalse5falsetruefalse00falsefalsefalse6falsetruefalse00falsefalsefalse7falsetruefalse00falsefalsefalse8falsetruefalse00falsefalsefalse9falsetruefalse00falsefalsefalse10falsetruefalse00falsefalsefalse11falsetruefalse00falsefalsefalse12falsetruefalse00falsefalsefalse13falsetruefalse00falsefalsefalse14falsetruefalse00falsefalsefalse15falsetruefalse00falsefalsefalse16falsetruefalse00falsefalsefalse17falsetruefalse00falsefalsefalse18falsetruefalse00falsefalsefalse19falsetruefalse00falsefalsefalse20falsetruefalse00falsefalsefalse21falsetruefalse00falsefalsefalse22falsetruefalse00falsefalsefalse23falsetruefalse00falsefalsefalse24falsetruefalse00falsefalsefalse25falsetruefalse00falsefalsefalse26falsetruefalse00falsefalsefalse27falsetruefalse00falsefalsefalse28falsetruefalse00falsefalsefalse29falsetruefalse00falsefalsefalse30falsetruefalse00falsefalsefalse31falsetruefalse00falsefalsefalse32falsetruefalse00falsefalsefalse33falsetruefalse00falsefalsefalse34truetruefalse0.0030.003falsefalsefalse35truetruefalse0.0050.005falsefalsefalse36falsetruefalse00falsefalsefalse37falsetruefalse00falsefalsefalse38falsetruefalse00falsefalsefalse39falsetruefalse00falsefalsefalse40falsetruefalse00falsefalsefalse41falsetruefalse00falsefalsefalse42falsetruefalse00falsefalsefalse43falsetruefalse00falsefalsefalse44falsetruefalse00falsefalsefalsenum:percentItemTypepureThe fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.No definition available.false0Commitment fee (as a percent)falseDebt (Details) (USD $)ThousandsUnKnownUnKnownUnKnowntruefalsefalseSheethttp://www.ironmountain.com/role/DisclosureDebtDetails4432