XML 79 R64.htm IDEA: XBRL DOCUMENT v2.4.1.9
Income Taxes (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Income Taxes    
Period of time subject to a separate corporate income tax 10 years  
Deferred Tax Assets:    
Accrued liabilities $ 22,236us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities $ 75,731us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities
Deferred rent 3,144us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsDeferredRent 25,624us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsDeferredRent
Net operating loss carryforwards 64,718us-gaap_DeferredTaxAssetsOperatingLossCarryforwards 81,124us-gaap_DeferredTaxAssetsOperatingLossCarryforwards
Foreign tax credits   10,229us-gaap_DeferredTaxAssetsTaxCreditCarryforwards
Stock compensation   16,745us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost
Federal benefit of unrecognized tax benefits 14,859irm_DeferredTaxAssetsTaxFederalBenefitOfUnrecognizedTaxBenefits 20,263irm_DeferredTaxAssetsTaxFederalBenefitOfUnrecognizedTaxBenefits
Foreign currency and other adjustments 8,620irm_DeferredTaxAssetsForeignCurrencyAndOtherAdjustments 23,938irm_DeferredTaxAssetsForeignCurrencyAndOtherAdjustments
Valuation allowance (40,182)us-gaap_DeferredTaxAssetsValuationAllowance (40,278)us-gaap_DeferredTaxAssetsValuationAllowance
Deferred Tax Assets 73,395us-gaap_DeferredTaxAssetsNet 213,376us-gaap_DeferredTaxAssetsNet
Deferred Tax Liabilities:    
Other assets, principally due to differences in amortization (74,782)us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssets (367,936)us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssets
Plant and equipment principally due to differences in depreciation (39,079)us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment (168,385)us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment
Deferred Tax Liabilities (113,861)us-gaap_DeferredTaxLiabilities (536,321)us-gaap_DeferredTaxLiabilities
Revaluation Associated with REIT Conversion, Deferred Tax Assets:    
Accrued liabilities (48,087)irm_IncreaseDecreaseInDeferredTaxAssetsAccruedLiabilitesRelatedToReitConversion  
Deferred rent (25,749)irm_IncreaseDecreaseInDeferredTaxAssetsDeferredRentRelatedToReitConversion  
Net operating loss carry forwards (34,912)irm_IncreaseDecreaseInDeferredTaxAssetsNetOperatingLossCarryForwardsRelatedToREITConversion  
Foreign tax credits (9,207)irm_IncreaseDecreaseInDeferredTaxAssetsForeignTaxCreditsRelatedToReitConversion  
Stock compensation (17,942)irm_IncreaseDecreaseInDeferredTaxAssetsStockCompensationRelatedToReitConversion  
Foreign currency and other adjustments (34,552)irm_IncreaseDecreaseInDeferredTaxAssetsForeignCurrencyAndOtherAdjustmentsRelatedToReitConversion  
Deferred tax assets (170,449)irm_IncreaseDecreaseInDeferredTaxAssetsNetRelatedToReitConversion  
Revaluation Associated with REIT Conversion, Deferred Tax Liabilities:    
Other assets, principally due to differences in amortization 273,268irm_IncreaseDecreaseInDeferredTaxLiabilitiesGoodwillAndIntangibleAssetsRelatedToReitConversion  
Plant and equipment, principally due to differences in depreciation 109,332irm_IncreaseDecreaseInDeferredTaxLiabilitiesPropertyPlantAndEquipmentRelatedToReitConversion  
Deferred tax liabilities 382,600irm_IncreaseDecreaseInDeferredTaxLiabilitiesRelatedToReitConversion  
Net Deferred Tax Asset/(Liability) 212,151irm_IncomeTaxReconciliationReversalOfCurrentAndDeferredTaxAssetsAndLiabilities  
Current Year Activity, Deferred Tax Assets:    
Accrued liabilities (5,408)irm_IncreaseDecreaseInDeferredTaxAssetsAccruedLiabilities  
Deferred Rent 3,269irm_IncreaseDecreaseInDeferredTaxAssetsDeferredRent  
Net operating loss carry forwards 18,506irm_IncreaseDecreaseInDeferredTaxAssetsNetOperatingLossCarryForwards  
Foreign tax credits (1,022)irm_IncreaseDecreaseInDeferredTaxAssetsForeignTaxCredits  
Stock compensation 1,197irm_IncreaseDecreaseInDeferredTaxAssetsStockCompensation  
Federal benefit of unrecognized tax benefits (5,404)irm_IncreaseDecreaseInDeferredTaxAssetsFederalBenefitOfUnrecognizedTaxBenefits  
Foreign currency and other adjustments 19,234irm_IncreaseDecreaseInDeferredTaxAssetsForeignCurrencyAndOtherAdjustments  
Valuation allowance 96irm_IncreaseDecreaseInDeferredTaxAssetsValuationAllowance  
Deferred tax asset 30,468irm_IncreaseDecreaseInDeferredTaxAssetsNet  
Current Year Activity, Deferred Tax Liabilities:    
Other assets, principally due to differences in amortization 19,886irm_IncreaseDecreaseInDeferredTaxLiabilitiesGoodwillAndIntangibleAssets  
Plant and equipment, principally due to differences in depreciation 19,974irm_IncreaseDecreaseInDeferredTaxLiabilitiesPropertyPlantAndEquipment  
Deferred tax liabilities 39,860irm_IncreaseDecreaseInDeferredTaxLiabilities  
Net Deferred Tax Asset/(Liability) 70,328irm_IncreaseDecreaseInDeferredTaxAssetsLiabilitiesNet  
Net deferred tax liability (40,466)us-gaap_DeferredTaxAssetsLiabilitiesNet (322,945)us-gaap_DeferredTaxAssetsLiabilitiesNet
Increase in tax provision from continuing operations due to conversion to a REIT 46,356irm_IncreaseInTaxProvisionFromContinuingOperationsDueToConversionToReit  
Current and noncurrent deferred tax assets (liabilities)    
The amount that the tax basis of REIT assets, excluding investments in TRSs, is less than the balance sheet value 486,000irm_DifferenceBetweenCarryingValueAndTaxBasisReitAssets  
Current deferred tax assets (liabilities)    
Deferred tax assets 16,655us-gaap_DeferredTaxAssetsGrossCurrent 65,332us-gaap_DeferredTaxAssetsGrossCurrent
Deferred tax liabilities (2,463)us-gaap_DeferredTaxLiabilitiesCurrent (47,709)us-gaap_DeferredTaxLiabilitiesCurrent
Current deferred tax assets, net 14,192us-gaap_DeferredTaxAssetsLiabilitiesNetCurrent 17,623us-gaap_DeferredTaxAssetsLiabilitiesNetCurrent
Noncurrent deferred tax assets (liabilities)    
Deferred tax assets 56,740us-gaap_DeferredTaxAssetsGrossNoncurrent 148,044us-gaap_DeferredTaxAssetsGrossNoncurrent
Deferred tax liabilities (111,398)irm_NoncurrentDeferredTaxLiabilities (488,612)irm_NoncurrentDeferredTaxLiabilities
Noncurrent deferred tax liabilities, net $ (54,658)us-gaap_DeferredTaxAssetsLiabilitiesNetNoncurrent $ (340,568)us-gaap_DeferredTaxAssetsLiabilitiesNetNoncurrent