$IRM
IRON MOUNTAIN INC Stock $irm

$irm Overview Financials Valuation SEC Filings Company Website

2011 Q4 Form 10-K Financial Statement

#000104746913002039 Filed on March 01, 2013

Income Statement

Concept	2011 Q4	2011 Q3	2011 Q2
Revenue	$741.8M	$768.3M	$758.6M
YoY Change	1.73%	7.79%	4.66%
Cost Of Revenue	$315.3M	$306.4M	$307.6M
YoY Change	6.48%	5.29%	4.38%
Gross Profit	$426.5M	$461.9M	$451.0M
YoY Change	-1.52%	9.51%	4.86%
Gross Profit Margin	57.49%	60.12%	59.46%
Selling, General & Admin	$189.4M	$209.0M	$223.4M
YoY Change	-5.21%	18.42%	13.51%
% of Gross Profit	44.41%	45.25%	49.53%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$85.30M	$76.90M	$78.87M
YoY Change	10.35%	-5.29%	20.78%
% of Gross Profit	20.0%	16.65%	17.49%
Operating Expenses	$273.0M	$209.0M	$223.4M
YoY Change	-1.73%	-16.9%	-17.93%
Operating Profit	$149.5M	$135.2M	$148.9M
YoY Change	-3.76%	-20.61%	-5.68%
Interest Expense	-$58.00M	$50.05M	$48.60M
YoY Change	19.59%	-220.31%	-186.18%
% of Operating Profit	-38.81%	37.02%	32.63%
Other Income/Expense, Net	-$2.700M	-$16.63M	-$2.621M
YoY Change	-217.39%	134.24%	555.25%
Pretax Income	$88.70M	$68.52M	$97.71M
YoY Change	-11.39%	25.73%	-3.45%
Income Tax	$41.30M	$18.13M	$30.25M
% Of Pretax Income	46.56%	26.45%	30.96%
Net Earnings	$34.00M	$37.93M	$253.0M
YoY Change	6.25%	-124.23%	512.7%
Net Earnings / Revenue	4.58%	4.94%	33.36%
Basic Earnings Per Share	$0.18	$0.19	$1.25
Diluted Earnings Per Share	$0.18	$0.19	$1.24
COMMON SHARES
Basic Shares Outstanding		195.6M shares	201.7M shares
Diluted Shares Outstanding		196.7M shares	203.3M shares

Balance Sheet

Concept	2011 Q4	2011 Q3	2011 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments	$180.0M	$481.0M	$271.0M
YoY Change	-30.5%	161.41%	-20.29%
Cash & Equivalents	$179.8M	$480.9M	$271.4M
Short-Term Investments
Other Short-Term Assets	$148.8M	$230.0M	$221.0M
YoY Change	-65.4%	4.55%	8.33%
Inventory
Prepaid Expenses
Receivables	$543.5M	$548.0M	$578.0M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$914.5M	$1.260B	$1.070B
YoY Change	-24.55%	26.63%	-4.89%
LONG-TERM ASSETS
Property, Plant & Equipment	$2.407B	$2.396B	$2.478B
YoY Change	-2.47%	-4.12%	0.85%
Goodwill	$2.254B
YoY Change	-1.11%
Intangibles
YoY Change
Long-Term Investments	$3.499M
YoY Change
Other Assets	$19.51M	$56.00M	$68.00M
YoY Change	-73.64%	-1.75%	15.25%
Total Long-Term Assets	$5.127B	$5.138B	$5.347B
YoY Change	-1.49%	-4.07%	-3.16%
TOTAL ASSETS
Total Short-Term Assets	$914.5M	$1.260B	$1.070B
Total Long-Term Assets	$5.127B	$5.138B	$5.347B
Total Assets	$6.041B	$6.398B	$6.417B
YoY Change	-5.85%	0.74%	-3.45%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$156.4M	$130.0M	$134.0M
YoY Change	8.6%	-5.8%	8.06%
Accrued Expenses	$418.8M	$392.0M	$422.0M
YoY Change	9.36%	4.53%	16.57%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$73.00M	$63.00M	$66.00M
YoY Change	-23.96%	70.27%	73.68%
Total Short-Term Liabilities	$849.0M	$755.0M	$798.0M
YoY Change	-2.97%	1.07%	9.02%
LONG-TERM LIABILITIES
Long-Term Debt	$3.280B	$3.257B	$2.867B
YoY Change	12.64%	9.55%	-8.37%
Other Long-Term Liabilities	$53.17M	$148.0M	$181.0M
YoY Change	-71.1%	-20.0%	-17.35%
Total Long-Term Liabilities	$53.17M	$3.405B	$3.048B
YoY Change	-98.28%	7.82%	-8.96%
TOTAL LIABILITIES
Total Short-Term Liabilities	$849.0M	$755.0M	$798.0M
Total Long-Term Liabilities	$53.17M	$3.405B	$3.048B
Total Liabilities	$902.2M	$4.685B	$4.357B
YoY Change	-79.82%	6.72%	-3.93%
SHAREHOLDERS EQUITY
Retained Earnings	$902.6M
YoY Change
Common Stock	$345.3M
YoY Change
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$1.246B	$1.706B	$2.054B
YoY Change
Total Liabilities & Shareholders Equity	$6.041B	$6.391B	$6.411B
YoY Change	-5.84%	0.63%	-3.55%

Cashflow Statement

Concept	2011 Q4	2011 Q3	2011 Q2
OPERATING ACTIVITIES
Net Income	$34.00M	$37.93M	$253.0M
YoY Change	6.25%	-124.23%	512.7%
Depreciation, Depletion And Amortization	$85.30M	$76.90M	$78.87M
YoY Change	10.35%	-5.29%	20.78%
Cash From Operating Activities	$204.4M	$167.9M	$123.8M
YoY Change	13.49%	-5.09%	-9.57%
INVESTING ACTIVITIES
Capital Expenditures	-$65.90M	$48.92M	$46.98M
YoY Change	-8.6%	-177.03%	-190.17%
Acquisitions			$40.47M
YoY Change
Other Investing Activities	$9.700M	-$1.000M	$344.6M
YoY Change	-221.25%	-171.43%	-7279.17%
Cash From Investing Activities	-$56.30M	-$55.70M	$289.5M
YoY Change	-29.71%	-10.16%	-607.01%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-443.2M	102.9M	-333.0M
YoY Change	1591.6%	-137.31%	437.1%
NET CHANGE
Cash From Operating Activities	204.4M	167.9M	123.8M
Cash From Investing Activities	-56.30M	-55.70M	289.5M
Cash From Financing Activities	-443.2M	102.9M	-333.0M
Net Change In Cash	-295.1M	215.1M	80.30M
YoY Change	-499.86%	-233.69%	351.12%
FREE CASH FLOW
Cash From Operating Activities	$204.4M	$167.9M	$123.8M
Capital Expenditures	-$65.90M	$48.92M	$46.98M
Free Cash Flow	$270.3M	$119.0M	$76.82M
YoY Change	7.18%	-50.51%	-59.35%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2012Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	92887000	USD
CY2012Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	3732116000	USD
CY2012Q4	irm	Debt Instrument Percentage Of Capital Stock Pledged To Secure Debt DebtInstrumentPercentageOfCapitalStockPledgedToSecureDebt	0.66	pure
CY2012Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	92887000	USD
CY2012Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	357370000	USD
CY2012Q4	irm	Number Of Series Of Senior Subordinated Notes NumberOfSeriesOfSeniorSubordinatedNotes	8	item
CY2012Q4	irm	Senior Subordinated Notes Percentage Of Redemption Price Of Face Value After Date Of Redemption SeniorSubordinatedNotesPercentageOfRedemptionPriceOfFaceValueAfterDateOfRedemption	1.00	pure
CY2012Q4	irm	Senior Subordinated Notes Repurchase Price Percentage Of Principal Amount Plus Accrued And Unpaid Interest In Event Of Change Of Control SeniorSubordinatedNotesRepurchasePricePercentageOfPrincipalAmountPlusAccruedAndUnpaidInterestInEventOfChangeOfControl	1.01	pure
CY2012Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	162511000	USD
CY2012Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	302014000	USD
CY2012Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	193946000	USD
CY2012Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	2719473000	USD
CY2012Q4	us-gaap	Debt Instrument Unamortized Discount Premium Net DebtInstrumentUnamortizedDiscountPremiumNet	3198000	USD
CY2012Q4	us-gaap	Long Term Debt LongTermDebt	3825003000	USD
CY2012Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	3828201000	USD
CY2011Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	1825511000	USD
CY2011Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	2407083000	USD
CY2011Q4	us-gaap	Goodwill Goodwill	2254268000	USD
CY2011Q4	irm	Customer Relationships And Acquisition Costs CustomerRelationshipsAndAcquisitionCosts	410149000	USD
CY2011Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2012Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	10000000	shares
CY2011Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2012Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2011Q4	us-gaap	Preferred Stock Value PreferredStockValue		USD
CY2012Q4	us-gaap	Preferred Stock Value PreferredStockValue		USD
CY2012Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	25209000	USD
CY2011Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	23277000	USD
CY2012Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2011Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	10000000	shares
CY2012Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2011Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2011Q4	us-gaap	Deferred Finance Costs Noncurrent Net DeferredFinanceCostsNoncurrentNet	35798000	USD
CY2011Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	19510000	USD
CY2011Q4	irm	Assets Noncurrent Excluding Property Plant And Equipment Net AssetsNoncurrentExcludingPropertyPlantAndEquipmentNet	2719725000	USD
CY2011Q4	us-gaap	Assets Assets	6041258000	USD
CY2011Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	73320000	USD
CY2011Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	156381000	USD
CY2011Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	418831000	USD
CY2011Q4	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	197181000	USD
CY2011Q4	us-gaap	Liabilities Of Disposal Group Including Discontinued Operation Current LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent	3317000	USD
CY2011Q4	us-gaap	Liabilities Current LiabilitiesCurrent	849030000	USD
CY2011Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	3280268000	USD
CY2011Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	53169000	USD
CY2011Q4	us-gaap	Deferred Rent Credit Noncurrent DeferredRentCreditNoncurrent	97177000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	507358000	USD
CY2011Q4	us-gaap	Common Stock Value CommonStockValue	1721000	USD
CY2011Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	343603000	USD
CY2011Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	902567000	USD
CY2011Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-2203000	USD
CY2011Q4	us-gaap	Stockholders Equity StockholdersEquity	1245688000	USD
CY2011Q4	us-gaap	Minority Interest MinorityInterest	8568000	USD
CY2011Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1254256000	USD
CY2011Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	6041258000	USD
CY2012Q4	us-gaap	Assets Current AssetsCurrent	1024092000	USD
CY2012Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	2477727000	USD
CY2012Q4	irm	Assets Noncurrent Excluding Property Plant And Equipment Net AssetsNoncurrentExcludingPropertyPlantAndEquipmentNet	2856520000	USD
CY2012Q4	us-gaap	Assets Assets	6358339000	USD
CY2012Q4	us-gaap	Liabilities Current LiabilitiesCurrent	904953000	USD
CY2012Q4	us-gaap	Stockholders Equity StockholdersEquity	1149971000	USD
CY2012Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1162448000	USD
CY2012Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	6358339000	USD
CY2012Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2011Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2012Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2011Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2012Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	400000000	shares
CY2011Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	400000000	shares
CY2012Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	190005788	shares
CY2012Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	190005788	shares
CY2011Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	172140966	shares
CY2011Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	172140966	shares
CY2010	irm	Information Storage Revenue InformationStorageRevenue	1598718000	USD
CY2010	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	13841000	USD
CY2011	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	75246000	USD
CY2010	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	35102000	USD
CY2010	irm	Service Revenue ServiceRevenue	1293631000	USD
CY2010	us-gaap	Sales Revenue Services Net SalesRevenueServicesNet	2892349000	USD
CY2011	us-gaap	Sales Revenue Services Net SalesRevenueServicesNet	3014703000	USD
CY2010	irm	Cost Of Sales Excluding Depreciation And Amortization CostOfSalesExcludingDepreciationAndAmortization	1192862000	USD
CY2011	irm	Cost Of Sales Excluding Depreciation And Amortization CostOfSalesExcludingDepreciationAndAmortization	1245200000	USD
CY2010	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	772811000	USD
CY2011	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	834591000	USD
CY2010	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	304205000	USD
CY2011	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	319499000	USD
CY2010	us-gaap	Goodwill And Intangible Asset Impairment GoodwillAndIntangibleAssetImpairment	85909000	USD
CY2011	us-gaap	Goodwill And Intangible Asset Impairment GoodwillAndIntangibleAssetImpairment	46500000	USD
CY2010	us-gaap	Gain Loss On Sales Of Assets And Asset Impairment Charges GainLossOnSalesOfAssetsAndAssetImpairmentCharges	10987000	USD
CY2011	us-gaap	Gain Loss On Sales Of Assets And Asset Impairment Charges GainLossOnSalesOfAssetsAndAssetImpairmentCharges	2286000	USD
CY2010	us-gaap	Costs And Expenses CostsAndExpenses	2344800000	USD
CY2011	us-gaap	Costs And Expenses CostsAndExpenses	2443504000	USD
CY2010	us-gaap	Operating Income Loss OperatingIncomeLoss	547549000	USD
CY2011	us-gaap	Operating Income Loss OperatingIncomeLoss	571199000	USD
CY2010	us-gaap	Interest Expense InterestExpense	204559000	USD
CY2011	us-gaap	Interest Expense InterestExpense	205256000	USD
CY2010	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-8768000	USD
CY2011	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-13043000	USD
CY2010	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	334222000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	352900000	USD
CY2010	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	167483000	USD
CY2011	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	106488000	USD
CY2010	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	166739000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	246412000	USD
CY2010	us-gaap	Discontinued Operation Income Loss From Discontinued Operation During Phase Out Period Net Of Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax	-219417000	USD
CY2011	us-gaap	Discontinued Operation Income Loss From Discontinued Operation During Phase Out Period Net Of Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax	-47439000	USD
CY2011	us-gaap	Discontinued Operation Gain Loss On Disposal Of Discontinued Operation Net Of Tax DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax	200619000	USD
CY2010	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	2288000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-32616000	USD
CY2010	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	4908000	USD
CY2011	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	4054000	USD
CY2010	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-57586000	USD
CY2011	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	395538000	USD
CY2010	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	-1.09
CY2010	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.29
CY2011	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.03
CY2010	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.83
CY2011	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	1.26
CY2010	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	-1.09
CY2011	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.78
CY2011	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.02
CY2010	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	201991000	shares
CY2011	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	194777000	shares
CY2010	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	201991000	shares
CY2011	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	195938000	shares
CY2010	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.3750
CY2011	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.9375
CY2012	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	5.1200
CY2012	us-gaap	Sales Revenue Services Net SalesRevenueServicesNet	3005255000	USD
CY2012	us-gaap	Costs And Expenses CostsAndExpenses	2448228000	USD
CY2012	us-gaap	Operating Income Loss OperatingIncomeLoss	557027000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	298366000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	183493000	USD
CY2010	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	2288000	USD
CY2012	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	171708000	USD
CY2012	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.99
CY2012	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.98
CY2010	us-gaap	Investment Income Interest InvestmentIncomeInterest	1785000	USD
CY2012	us-gaap	Investment Income Interest InvestmentIncomeInterest	2418000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-32616000	USD
CY2011	us-gaap	Investment Income Interest InvestmentIncomeInterest	2313000	USD
CY2010	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-50390000	USD
CY2011	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	366976000	USD
CY2010	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	5375000	USD
CY2011	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	3123000	USD
CY2010	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-55765000	USD
CY2011	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	363853000	USD
CY2012	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	198020000	USD
CY2012	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	194225000	USD
CY2010	us-gaap	Profit Loss ProfitLoss	-52678000	USD
CY2011	us-gaap	Profit Loss ProfitLoss	399592000	USD
CY2012	us-gaap	Profit Loss ProfitLoss	174834000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	23186000	USD
CY2010	us-gaap	Depreciation Depreciation	278760000	USD
CY2011	us-gaap	Depreciation Depreciation	290638000	USD
CY2010	us-gaap	Adjustment For Amortization AdjustmentForAmortization	30802000	USD
CY2011	us-gaap	Adjustment For Amortization AdjustmentForAmortization	35179000	USD
CY2010	us-gaap	Share Based Compensation ShareBasedCompensation	17274000	USD
CY2011	us-gaap	Share Based Compensation ShareBasedCompensation	17250000	USD
CY2010	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	37666000	USD
CY2011	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	3389000	USD
CY2010	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-1792000	USD
CY2011	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-993000	USD
CY2010	irm	Foreign Currency Transaction Gain Loss Unrealized And Adjustments Noncash Items To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities Other ForeignCurrencyTransactionGainLossUnrealizedAndAdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesOther	-18043000	USD
CY2011	irm	Foreign Currency Transaction Gain Loss Unrealized And Adjustments Noncash Items To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities Other ForeignCurrencyTransactionGainLossUnrealizedAndAdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesOther	-24298000	USD
CY2010	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-11793000	USD
CY2011	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	20799000	USD
CY2010	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	8811000	USD
CY2011	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-5299000	USD
CY2010	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-547000	USD
CY2011	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	7069000	USD
CY2010	us-gaap	Increase Decrease In Accrued Liabilities And Other Operating Liabilities IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities	-38072000	USD
CY2011	us-gaap	Increase Decrease In Accrued Liabilities And Other Operating Liabilities IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities	15629000	USD
CY2010	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-12868000	USD
CY2011	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	6057000	USD
CY2010	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	603229000	USD
CY2011	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	663514000	USD
CY2010	us-gaap	Cash Provided By Used In Operating Activities Discontinued Operations CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations	21911000	USD
CY2011	us-gaap	Cash Provided By Used In Operating Activities Discontinued Operations CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations	-48076000	USD
CY2010	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	625140000	USD
CY2011	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	615438000	USD
CY2010	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	258849000	USD
CY2011	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	209155000	USD
CY2012	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	63570000	USD
CY2011	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	9010000	USD
CY2010	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	-379711000	USD
CY2011	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	-762670000	USD
CY2010	us-gaap	Cash Provided By Used In Financing Activities Discontinued Operations CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations	-1523000	USD
CY2011	us-gaap	Cash Provided By Used In Financing Activities Discontinued Operations CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations	-1138000	USD
CY2010	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-381234000	USD
CY2011	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-763808000	USD
CY2010	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	801000	USD
CY2011	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-8986000	USD
CY2010	us-gaap	Income Taxes Paid IncomeTaxesPaid	139072000	USD
CY2011	us-gaap	Income Taxes Paid IncomeTaxesPaid	147998000	USD
CY2010	us-gaap	Capital Lease Obligations Incurred CapitalLeaseObligationsIncurred	30367000	USD
CY2010	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-187963000	USD
CY2011	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-78848000	USD
CY2010	us-gaap	Interest Paid InterestPaid	226463000	USD
CY2011	us-gaap	Interest Paid InterestPaid	203035000	USD
CY2011	us-gaap	Capital Lease Obligations Incurred CapitalLeaseObligationsIncurred	30090000	USD
CY2010	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	41222000	USD
CY2011	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	43696000	USD
CY2011	irm	Unsettled Repurchases Of Parent Common Stock UnsettledRepurchasesOfParentCommonStock	3364000	USD
CY2012	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	443652000	USD
CY2012	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	432736000	USD
CY2012	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-394064000	USD
CY2010Q4	irm	Goodwill Accumulated Amortization GoodwillAccumulatedAmortization	274867000	USD
CY2012	irm	Goodwill Accumulated Amortization Translation And Purchase Accounting Adjustments GoodwillAccumulatedAmortizationTranslationAndPurchaseAccountingAdjustments	723000	USD
CY2011	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	5000	USD
CY2010	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	13202000	USD
CY2011	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	21703000	USD
CY2011	us-gaap	Payments To Acquire Interest In Joint Venture PaymentsToAcquireInterestInJointVenture	335000	USD
CY2010	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	22536000	USD
CY2011	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	4231000	USD
CY2010	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-298458000	USD
CY2011	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-302213000	USD
CY2010	us-gaap	Cash Provided By Used In Investing Activities Discontinued Operations CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations	-134212000	USD
CY2011	us-gaap	Cash Provided By Used In Investing Activities Discontinued Operations CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations	380721000	USD
CY2010	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-432670000	USD
CY2011	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	78508000	USD
CY2010	irm	Repayments Of Secured Debt Short Term And Long Term RepaymentsOfSecuredDebtShortTermAndLongTerm	101884000	USD
CY2011	irm	Repayments Of Secured Debt Short Term And Long Term RepaymentsOfSecuredDebtShortTermAndLongTerm	2017174000	USD
CY2010	irm	Proceeds From Issuance Of Secured Debt Short Term And Long Term ProceedsFromIssuanceOfSecuredDebtShortTermAndLongTerm	53567000	USD
CY2011	irm	Proceeds From Issuance Of Secured Debt Short Term And Long Term ProceedsFromIssuanceOfSecuredDebtShortTermAndLongTerm	2170979000	USD
CY2010	us-gaap	Early Repayment Of Subordinated Debt EarlyRepaymentOfSubordinatedDebt	202584000	USD
CY2011	us-gaap	Early Repayment Of Subordinated Debt EarlyRepaymentOfSubordinatedDebt	231255000	USD
CY2011	us-gaap	Proceeds From Issuance Of Subordinated Long Term Debt ProceedsFromIssuanceOfSubordinatedLongTermDebt	394000000	USD
CY2010	us-gaap	Proceeds From Payments To Minority Shareholders ProceedsFromPaymentsToMinorityShareholders	169000	USD
CY2011	us-gaap	Proceeds From Payments To Minority Shareholders ProceedsFromPaymentsToMinorityShareholders	698000	USD
CY2010	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	111563000	USD
CY2011	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	984953000	USD
CY2010	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	37893000	USD
CY2011	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	172616000	USD
CY2010	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	18225000	USD
CY2011	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	85742000	USD
CY2010	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	2252000	USD
CY2011	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	919000	USD
CY2012	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-400200000	USD
CY2012	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	28269000	USD
CY2012	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	28230000	USD
CY2012Q4	us-gaap	Goodwill Goodwill	2334759000	USD
CY2010Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	37514000	USD
CY2011Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	43180000	USD
CY2012Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	243415000	USD
CY2010Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	258693000	USD
CY2009Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	446656000	USD
CY2010	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	5357000	USD
CY2011	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	6318000	USD
CY2012	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	6948000	USD
CY2009Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2150760000	USD
CY2010	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	39530000	USD
CY2010	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	111563000	USD
CY2010	us-gaap	Dividends Common Stock DividendsCommonStock	75407000	USD
CY2010Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1952865000	USD
CY2011	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	102986000	USD
CY2012	dei	Entity Registrant Name EntityRegistrantName	IRON MOUNTAIN INC
CY2012	dei	Entity Central Index Key EntityCentralIndexKey	0001020569
CY2012	dei	Document Type DocumentType	10-K
CY2012	dei	Document Period End Date DocumentPeriodEndDate	2012-12-31
CY2012	dei	Amendment Flag AmendmentFlag	false
CY2012	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2012	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2012	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2012	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2012	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2012	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2012
CY2012	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2012Q2	dei	Entity Public Float EntityPublicFloat	4800000000	USD
CY2013Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	190140008	shares
CY2012	us-gaap	Nature Of Operations NatureOfOperations	<div style='font-size:10.0pt;FONT-FAMILY: Times New Roman;'> <p style="FONT-FAMILY: times"><font size="2"><b>1. Nature of Business</b></font></p> <p style="FONT-FAMILY: times"><font size="2">        The accompanying financial statements represent the consolidated accounts of Iron Mountain Incorporated, a Delaware corporation ("IMI"), and its subsidiaries. We store records and provide information management services in various locations throughout North America, Europe, Latin America and Asia Pacific. We have a diversified customer base consisting of commercial, legal, banking, health care, accounting, insurance, entertainment and government organizations.</font></p> <p style="FONT-FAMILY: times"><font size="2">        In August 2010, we sold the domain name management product line of our digital business (the "Domain Name Product Line"). On June 2, 2011, we sold (the "Digital Sale") our online backup and recovery, digital archiving and eDiscovery solutions businesses of our digital business (the "Digital Business") to Autonomy Corporation plc, a corporation formed under the laws of England and Wales ("Autonomy"), pursuant to a purchase and sale agreement dated as of May 15, 2011 among IMI, certain subsidiaries of IMI and Autonomy (the "Digital Sale Agreement"). Additionally, on October 3, 2011, we sold our records management operations in New Zealand and on April 27, 2012, we sold our records management operations in Italy. The financial position, operating results and cash flows of the Domain Name Product Line, the Digital Business, our New Zealand operations and our Italian operations, including the gain on the sale of the Domain Name Product Line, the Digital Business and our New Zealand operations and the loss on the sale of our Italian operations, for all periods presented, have been reported as discontinued operations for financial reporting purposes. See Note 14 for a further discussion of these events.</font></p></div>
CY2011Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	179845000	USD
CY2011Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	35110000	USD
CY2011Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	543467000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Net Current DeferredTaxAssetsNetCurrent	43235000	USD
CY2011Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	105537000	USD
CY2011Q4	us-gaap	Assets Of Disposal Group Including Discontinued Operation Current AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent	7256000	USD
CY2011Q4	us-gaap	Assets Current AssetsCurrent	914450000	USD
CY2011Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	4232594000	USD
CY2011	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	988318000	USD
CY2011	us-gaap	Dividends Common Stock DividendsCommonStock	178281000	USD
CY2011	us-gaap	Minority Interest Increase From Stock Issuance MinorityInterestIncreaseFromStockIssuance	215000	USD
CY2011	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	2187000	USD
CY2010	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	1997000	USD
CY2010Q4	us-gaap	Goodwill Goodwill	2279561000	USD
CY2012Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	33612000	USD
CY2012	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-10223000	USD
CY2011	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-17352000	USD
CY2010	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-5664000	USD
CY2012Q4	us-gaap	Percentage Of Debt Hedged By Interest Rate Derivatives PercentageOfDebtHedgedByInterestRateDerivatives	0.75	pure
CY2012Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	4443323000	USD
CY2012Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	10982000	USD
CY2011Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	10116000	USD
CY2012Q4	irm	Reporting Unit Fair Value Exceeds Carrying Value Percent ReportingUnitFairValueExceedsCarryingValuePercent	0.30	pure
CY2012	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	389000	USD
CY2011	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	300000	USD
CY2012	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	785000	USD
CY2011	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	774000	USD
CY2012	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	1056000	USD
CY2011	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	1327000	USD
CY2011	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	-176000	USD
CY2012	us-gaap	Asset Retirement Obligation Foreign Currency Translation AssetRetirementObligationForeignCurrencyTranslation	206000	USD
CY2012Q4	us-gaap	Minority Interest Ownership Percentage By Parent MinorityInterestOwnershipPercentageByParent	1.00	pure
CY2010Q4	us-gaap	Goodwill Gross GoodwillGross	2554428000	USD
CY2011	irm	Deductible Goodwill Acquired During Period DeductibleGoodwillAcquiredDuringPeriod	1398000	USD
CY2011	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	35207000	USD
CY2011	us-gaap	Goodwill Allocation Adjustment GoodwillAllocationAdjustment	1296000	USD
CY2011	us-gaap	Goodwill Translation Adjustments GoodwillTranslationAdjustments	-18044000	USD
CY2011Q4	us-gaap	Goodwill Gross GoodwillGross	2574285000	USD
CY2012	irm	Deductible Goodwill Acquired During Period DeductibleGoodwillAcquiredDuringPeriod	40214000	USD
CY2012	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	18079000	USD
CY2012	us-gaap	Goodwill Translation Adjustments GoodwillTranslationAdjustments	22921000	USD
CY2012Q4	us-gaap	Goodwill Gross GoodwillGross	2655499000	USD
CY2011	irm	Goodwill Accumulated Amortization Translation And Purchase Accounting Adjustments GoodwillAccumulatedAmortizationTranslationAndPurchaseAccountingAdjustments	-1350000	USD
CY2011Q4	irm	Goodwill Accumulated Amortization GoodwillAccumulatedAmortization	320017000	USD
CY2012Q4	irm	Goodwill Accumulated Amortization GoodwillAccumulatedAmortization	320740000	USD
CY2011Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	132409000	USD
CY2012Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	132409000	USD
CY2011Q4	irm	Property Plant And Equipment Fair Value And Other Adjustments PropertyPlantAndEquipmentFairValueAndOtherAdjustments	-835000	USD
CY2011	irm	Cash Paid Related To Goodwill To Acquire Prior Year Acquisitions CashPaidRelatedToGoodwillToAcquirePriorYearAcquisitions	131000	USD
CY2011	irm	Fair Value And Other Adjustments Contingent Earn Out Obligation Accrued And Unpaid FairValueAndOtherAdjustmentsContingentEarnOutObligationAccruedAndUnpaid	2000000	USD
CY2011Q4	us-gaap	Deferred Finance Costs Gross DeferredFinanceCostsGross	54826000	USD
CY2012Q4	us-gaap	Deferred Finance Costs Gross DeferredFinanceCostsGross	63649000	USD
CY2011Q4	us-gaap	Accumulated Amortization Deferred Finance Costs AccumulatedAmortizationDeferredFinanceCosts	19028000	USD
CY2012Q4	us-gaap	Accumulated Amortization Deferred Finance Costs AccumulatedAmortizationDeferredFinanceCosts	19799000	USD
CY2012Q4	us-gaap	Interest Payable Current InterestPayableCurrent	64227000	USD
CY2011Q4	us-gaap	Interest Payable Current InterestPayableCurrent	59268000	USD
CY2012Q4	irm	Accrued Salaries And Vacation Current AccruedSalariesAndVacationCurrent	80931000	USD
CY2011Q4	irm	Accrued Salaries And Vacation Current AccruedSalariesAndVacationCurrent	75384000	USD
CY2012Q4	us-gaap	Accrued Bonuses Current AccruedBonusesCurrent	63828000	USD
CY2011Q4	us-gaap	Accrued Bonuses Current AccruedBonusesCurrent	62550000	USD
CY2012Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	426813000	USD
CY2012Q4	us-gaap	Self Insurance Reserve Current SelfInsuranceReserveCurrent	34806000	USD
CY2011Q4	us-gaap	Self Insurance Reserve Current SelfInsuranceReserveCurrent	39358000	USD
CY2012Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	129979000	USD
CY2011Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	139091000	USD
CY2010	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	20378000	USD
CY2010	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	15672000	USD
CY2010	irm	Allocated Share Based Compensation Expense Earnings Per Share Basic And Diluted AllocatedShareBasedCompensationExpenseEarningsPerShareBasicAndDiluted	0.08
CY2011	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	17510000	USD
CY2011	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	8834000	USD
CY2011	irm	Allocated Share Based Compensation Expense Earnings Per Share Basic And Diluted AllocatedShareBasedCompensationExpenseEarningsPerShareBasicAndDiluted	0.05
CY2011	irm	Other Nonoperating Income Expense Other Net OtherNonoperatingIncomeExpenseOtherNet	5302000	USD
CY2012	irm	Other Nonoperating Income Expense Other Net OtherNonoperatingIncomeExpenseOtherNet	4789000	USD
CY2012	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-16062000	USD
CY2010	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet	2025000	USD
CY2011	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet	-1209000	USD
CY2012	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet	13007000	USD
CY2012	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	30360000	USD
CY2012	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	23437000	USD
CY2012	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	1045000	USD
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized	38917411	shares
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	6801350	shares
CY2012Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	44255000	USD
CY2012	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P2Y2M12D
CY2010	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-219417000	USD
CY2010	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	9305328	shares
CY2011	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	153180000	USD
CY2011	irm	Incremental Common Shares Attributable To Share Based Payments Arrangements Stock Option IncrementalCommonSharesAttributableToShareBasedPaymentsArrangementsStockOption	1060477	shares
CY2011	irm	Incremental Common Shares Attributable To Share Based Payments Restricted Stock And Rs Us And P Us IncrementalCommonSharesAttributableToShareBasedPaymentsRestrictedStockAndRSUsAndPUs	100136	shares
CY2011	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	3973760	shares
CY2012	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-8659000	USD
CY2012	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	173604000	shares
CY2012	irm	Incremental Common Shares Attributable To Share Based Payments Arrangements Stock Option IncrementalCommonSharesAttributableToShareBasedPaymentsArrangementsStockOption	914308	shares
CY2012	irm	Incremental Common Shares Attributable To Share Based Payments Restricted Stock And Rs Us And P Us IncrementalCommonSharesAttributableToShareBasedPaymentsRestrictedStockAndRSUsAndPUs	349128	shares
CY2012	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	174867000	shares
CY2012	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	1.06
CY2012	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	-0.05
CY2012	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	1.05
CY2012	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	-0.05
CY2012	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	1286150	shares
CY2012	irm	Period To Charge Off Uncollectible Balances Of Receivable As Circumstances Warrant PeriodToChargeOffUncollectibleBalancesOfReceivableAsCircumstancesWarrant	P1Y
CY2011Q4	irm	Concentration Risk Number Of Global Banks ConcentrationRiskNumberOfGlobalBanks	5	item
CY2011Q4	irm	Concentration Risk Number Of Triple A Rated Money Market Funds ConcentrationRiskNumberOfTripleARatedMoneyMarketFunds	1	item
CY2012	irm	Concentration Of Risk Maximum Investment Limit Per Financial Institution ConcentrationOfRiskMaximumInvestmentLimitPerFinancialInstitution	75000000	USD
CY2012	irm	Concentration Of Risk Maximum Investment Limit Per Mutual Fund ConcentrationOfRiskMaximumInvestmentLimitPerMutualFund	50000000	USD
CY2012Q4	irm	Concentration Risk Cash And Cash Equivalent And Restricted Cash ConcentrationRiskCashAndCashEquivalentAndRestrictedCash	277027000	USD
CY2011Q4	irm	Concentration Risk Cash And Cash Equivalent And Restricted Cash ConcentrationRiskCashAndCashEquivalentAndRestrictedCash	214955000	USD
CY2012Q4	irm	Concentration Risk Money Market Funds And Time Deposits ConcentrationRiskMoneyMarketFundsAndTimeDeposits	218629000	USD
CY2011Q4	irm	Concentration Risk Money Market Funds And Time Deposits ConcentrationRiskMoneyMarketFundsAndTimeDeposits	181823000	USD
CY2012	us-gaap	Maximum Length Of Time Hedged In Foreign Currency Cash Flow Hedge MaximumLengthOfTimeHedgedInForeignCurrencyCashFlowHedge	P6M
CY2011Q4	us-gaap	Trading Securities Fair Value Disclosure TradingSecuritiesFairValueDisclosure	9124000	USD
CY2012Q4	us-gaap	Trading Securities Fair Value Disclosure TradingSecuritiesFairValueDisclosure	11071000	USD
CY2010	us-gaap	Net Realized Or Unrealized Gain Loss On Trading Securities NetRealizedOrUnrealizedGainLossOnTradingSecurities	1221000	USD
CY2011	us-gaap	Net Realized Or Unrealized Gain Loss On Trading Securities NetRealizedOrUnrealizedGainLossOnTradingSecurities	-321000	USD
CY2012	us-gaap	Net Realized Or Unrealized Gain Loss On Trading Securities NetRealizedOrUnrealizedGainLossOnTradingSecurities	1292000	USD
CY2012	irm	Number Of Trust That Holds Marketable Securities NumberOfTrustThatHoldsMarketableSecurities	1	item
CY2011Q4	us-gaap	Equity Method Investments EquityMethodInvestments	3499000	USD
CY2012Q4	us-gaap	Equity Method Investments EquityMethodInvestments	398000	USD
CY2010	irm	Other Nonoperating Income Expense Other Net OtherNonoperatingIncomeExpenseOtherNet	-1312000	USD
CY2012Q4	us-gaap	Minority Interest MinorityInterest	12477000	USD
CY2011Q4	us-gaap	Debt And Capital Lease Obligations DebtAndCapitalLeaseObligations	3353588000	USD
CY2012Q4	us-gaap	Debt And Capital Lease Obligations DebtAndCapitalLeaseObligations	3825003000	USD
CY2012Q4	irm	Noncurrent Deferred Tax Liabilities NoncurrentDeferredTaxLiabilities	528755000	USD
CY2011Q4	us-gaap	Other Assets Current OtherAssetsCurrent	148772000	USD
CY2011Q4	irm	Other Assets Noncurrent Consolidating Balance Sheet OtherAssetsNoncurrentConsolidatingBalanceSheet	465457000	USD
CY2011Q4	irm	Other Liabilities Noncurrent Consolidating Balance Sheet OtherLiabilitiesNoncurrentConsolidatingBalanceSheet	657704000	USD
CY2012Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	572200000	USD
CY2012Q4	us-gaap	Other Assets Current OtherAssetsCurrent	174865000	USD
CY2012Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	1965596000	USD
CY2012Q4	irm	Other Assets Noncurrent Consolidating Balance Sheet OtherAssetsNoncurrentConsolidatingBalanceSheet	521761000	USD
CY2012Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	812066000	USD
CY2012Q4	irm	Other Liabilities Noncurrent Consolidating Balance Sheet OtherLiabilitiesNoncurrentConsolidatingBalanceSheet	558822000	USD
CY2012	irm	Service Revenue ServiceRevenue	1272117000	USD
CY2012	irm	Cost Of Sales Excluding Depreciation And Amortization CostOfSalesExcludingDepreciationAndAmortization	1277113000	USD
CY2012	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	850371000	USD
CY2012	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	316344000	USD
CY2012	us-gaap	Gain Loss On Sales Of Assets And Asset Impairment Charges GainLossOnSalesOfAssetsAndAssetImpairmentCharges	-4400000	USD
CY2012	us-gaap	Interest Expense InterestExpense	242599000	USD
CY2012	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	114873000	USD
CY2012	us-gaap	Discontinued Operation Income Loss From Discontinued Operation During Phase Out Period Net Of Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax	-6774000	USD
CY2012	us-gaap	Discontinued Operation Gain Loss On Disposal Of Discontinued Operation Net Of Tax DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax	-1885000	USD
CY2012	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	3126000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	23186000	USD
CY2012	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	3795000	USD
CY2012	us-gaap	Cash Provided By Used In Operating Activities Discontinued Operations CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations	-10916000	USD
CY2012	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	240683000	USD
CY2012	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	125134000	USD
CY2012	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	-1498000	USD
CY2012	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	28872000	USD
CY2012	us-gaap	Payments To Acquire Interest In Joint Venture PaymentsToAcquireInterestInJointVenture	2330000	USD
CY2012	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	1457000	USD
CY2012	us-gaap	Cash Provided By Used In Investing Activities Discontinued Operations CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations	-6136000	USD
CY2012	irm	Repayments Of Secured Debt Short Term And Long Term RepaymentsOfSecuredDebtShortTermAndLongTerm	2844693000	USD
CY2012	irm	Proceeds From Issuance Of Secured Debt Short Term And Long Term ProceedsFromIssuanceOfSecuredDebtShortTermAndLongTerm	2731185000	USD
CY2012	us-gaap	Early Repayment Of Subordinated Debt EarlyRepaymentOfSubordinatedDebt	525834000	USD
CY2012	us-gaap	Proceeds From Issuance Of Subordinated Long Term Debt ProceedsFromIssuanceOfSubordinatedLongTermDebt	985000000	USD
CY2012	us-gaap	Proceeds From Payments To Minority Shareholders ProceedsFromPaymentsToMinorityShareholders	480000	USD
CY2012	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	38052000	USD
CY2012	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	318845000	USD
CY2012	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	40244000	USD
CY2012	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	2261000	USD
CY2012	us-gaap	Cash Provided By Used In Financing Activities Discontinued Operations CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations	-39000	USD
CY2012	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	2804000	USD
CY2012Q4	us-gaap	Business Acquisition Cost Of Acquired Entity Cash Paid BusinessAcquisitionCostOfAcquiredEntityCashPaid	131972000	USD
CY2011Q4	us-gaap	Business Acquisition Cost Of Acquired Entity Cash Paid BusinessAcquisitionCostOfAcquiredEntityCashPaid	80439000	USD
CY2010Q4	us-gaap	Business Acquisition Cost Of Acquired Entity Cash Paid BusinessAcquisitionCostOfAcquiredEntityCashPaid	10542000	USD
CY2011Q4	us-gaap	Business Acquisition Contingent Consideration At Fair Value BusinessAcquisitionContingentConsiderationAtFairValue	-2900000	USD
CY2012Q4	us-gaap	Equity Method Investments Fair Value Disclosure EquityMethodInvestmentsFairValueDisclosure	4265000	USD
CY2011Q4	us-gaap	Equity Method Investments Fair Value Disclosure EquityMethodInvestmentsFairValueDisclosure	11694000	USD
CY2010Q4	us-gaap	Equity Method Investments Fair Value Disclosure EquityMethodInvestmentsFairValueDisclosure	473000	USD
CY2012Q4	us-gaap	Business Combination Acquisition Of Less Than100 Percent Noncontrolling Interest Fair Value BusinessCombinationAcquisitionOfLessThan100PercentNoncontrollingInterestFairValue	-1000000	USD
CY2012Q4	us-gaap	Business Acquisition Cost Of Acquired Entity Purchase Price BusinessAcquisitionCostOfAcquiredEntityPurchasePrice	137237000	USD
CY2011Q4	us-gaap	Business Acquisition Cost Of Acquired Entity Purchase Price BusinessAcquisitionCostOfAcquiredEntityPurchasePrice	95033000	USD
CY2010Q4	us-gaap	Business Acquisition Cost Of Acquired Entity Purchase Price BusinessAcquisitionCostOfAcquiredEntityPurchasePrice	11015000	USD
CY2012Q4	us-gaap	Business Acquisition Purchase Price Allocation Current Assets BusinessAcquisitionPurchasePriceAllocationCurrentAssets	18998000	USD
CY2012Q4	us-gaap	Business Acquisition Purchase Price Allocation Property Plant And Equipment BusinessAcquisitionPurchasePriceAllocationPropertyPlantAndEquipment	11794000	USD
CY2012Q4	irm	Business Acquisition Purchase Price Allocation Amortizable Intangible Assets Customer Relationship BusinessAcquisitionPurchasePriceAllocationAmortizableIntangibleAssetsCustomerRelationship	59479000	USD
CY2012Q4	us-gaap	Business Acquisition Purchase Price Allocation Other Noncurrent Assets BusinessAcquisitionPurchasePriceAllocationOtherNoncurrentAssets	4620000	USD
CY2012Q4	us-gaap	Business Acquisition Purchase Price Allocation Liabilities Assumed BusinessAcquisitionPurchasePriceAllocationLiabilitiesAssumed	15947000	USD
CY2012Q4	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Net BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet	78944000	USD
CY2012Q4	us-gaap	Business Acquisition Purchase Price Allocation Goodwill Amount BusinessAcquisitionPurchasePriceAllocationGoodwillAmount	58293000	USD
CY2010Q4	us-gaap	Business Acquisition Purchase Price Allocation Current Assets BusinessAcquisitionPurchasePriceAllocationCurrentAssets	1615000	USD
CY2010Q4	us-gaap	Business Acquisition Purchase Price Allocation Property Plant And Equipment BusinessAcquisitionPurchasePriceAllocationPropertyPlantAndEquipment	2711000	USD
CY2010Q4	irm	Business Acquisition Purchase Price Allocation Amortizable Intangible Assets Customer Relationship BusinessAcquisitionPurchasePriceAllocationAmortizableIntangibleAssetsCustomerRelationship	5189000	USD
CY2010Q4	us-gaap	Business Acquisition Purchase Price Allocation Liabilities Assumed BusinessAcquisitionPurchasePriceAllocationLiabilitiesAssumed	3840000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	626636000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	-464123000	USD
CY2010Q4	irm	Business Acquisition Purchase Price Allocation Noncontrolling Interests BusinessAcquisitionPurchasePriceAllocationNoncontrollingInterests	-390000	USD
CY2010Q4	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Net BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet	5285000	USD
CY2011Q4	us-gaap	Business Acquisition Purchase Price Allocation Goodwill Amount BusinessAcquisitionPurchasePriceAllocationGoodwillAmount	36605000	USD
CY2010Q4	us-gaap	Business Acquisition Purchase Price Allocation Goodwill Amount BusinessAcquisitionPurchasePriceAllocationGoodwillAmount	5730000	USD
CY2011Q4	us-gaap	Business Acquisition Purchase Price Allocation Current Assets BusinessAcquisitionPurchasePriceAllocationCurrentAssets	7918000	USD
CY2011Q4	us-gaap	Business Acquisition Purchase Price Allocation Property Plant And Equipment BusinessAcquisitionPurchasePriceAllocationPropertyPlantAndEquipment	6002000	USD
CY2011Q4	irm	Business Acquisition Purchase Price Allocation Amortizable Intangible Assets Customer Relationship BusinessAcquisitionPurchasePriceAllocationAmortizableIntangibleAssetsCustomerRelationship	59100000	USD
CY2011Q4	us-gaap	Business Acquisition Purchase Price Allocation Other Noncurrent Assets BusinessAcquisitionPurchasePriceAllocationOtherNoncurrentAssets	653000	USD
CY2011Q4	us-gaap	Business Acquisition Purchase Price Allocation Liabilities Assumed BusinessAcquisitionPurchasePriceAllocationLiabilitiesAssumed	15245000	USD
CY2011Q4	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Net BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet	58428000	USD
CY2010	irm	Business Acquisition Cost Of Acquired Entity Cash Paid For Acquisitions Made In Prior Years BusinessAcquisitionCostOfAcquiredEntityCashPaidForAcquisitionsMadeInPriorYears	3428000	USD
CY2011	irm	Business Acquisition Cost Of Acquired Entity Cash Paid For Acquisitions Made In Prior Years BusinessAcquisitionCostOfAcquiredEntityCashPaidForAcquisitionsMadeInPriorYears	132000	USD
CY2012Q4	irm	Shareholder Agreement Equity Interest Held By Noncontrolling Owners Available For Sale Price Under Agreement ShareholderAgreementEquityInterestHeldByNoncontrollingOwnersAvailableForSalePriceUnderAgreement	84835000	INR
CY2012Q4	irm	Shareholder Agreement Equity Interest Held By Noncontrolling Owners Available For Sale Percent ShareholderAgreementEquityInterestHeldByNoncontrollingOwnersAvailableForSalePercent	0.499	pure
CY2012Q4	irm	Shareholder Agreement Equity Interest Held By Noncontrolling Owners Available For Sale Price Under Agreement ShareholderAgreementEquityInterestHeldByNoncontrollingOwnersAvailableForSalePriceUnderAgreement	1547000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	87109000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Deferred Rent DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsDeferredRent	19772000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	64796000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	44315000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	76050000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	44673000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	184615000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssets	254156000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	318856000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	573012000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	-388397000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Gross Current DeferredTaxAssetsGrossCurrent	54409000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Current DeferredTaxLiabilitiesCurrent	44257000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Liabilities Net Current DeferredTaxAssetsLiabilitiesNetCurrent	10152000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Gross Noncurrent DeferredTaxAssetsGrossNoncurrent	130206000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	398549000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Liabilities Net Noncurrent DeferredTaxAssetsLiabilitiesNetNoncurrent	-398549000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	53983000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Deferred Rent DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsDeferredRent	21889000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	58113000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	56599000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	72239000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	44168000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	162513000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssets	281060000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	345576000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Gross Current DeferredTaxAssetsGrossCurrent	54383000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Current DeferredTaxLiabilitiesCurrent	11148000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Liabilities Net Current DeferredTaxAssetsLiabilitiesNetCurrent	43235000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Gross Noncurrent DeferredTaxAssetsGrossNoncurrent	108130000	USD
CY2011Q4	irm	Noncurrent Deferred Tax Liabilities NoncurrentDeferredTaxLiabilities	615488000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Liabilities Net Noncurrent DeferredTaxAssetsLiabilitiesNetNoncurrent	-507358000	USD
CY2012Q4	us-gaap	Valuation Allowance Amount ValuationAllowanceAmount	76050000	USD
CY2009Q4	us-gaap	Valuation Allowance Amount ValuationAllowanceAmount	33926000	USD
CY2010Q4	us-gaap	Valuation Allowance Amount ValuationAllowanceAmount	72229000	USD
CY2011Q4	us-gaap	Valuation Allowance Amount ValuationAllowanceAmount	72239000	USD
CY2012	irm	Valuation Allowances Charged To Expense ValuationAllowancesChargedToExpense	2274000	USD
CY2010	irm	Valuation Allowances Charged To Expense ValuationAllowancesChargedToExpense	39545000	USD
CY2011	irm	Valuation Allowances Charged To Expense ValuationAllowancesChargedToExpense	9844000	USD
CY2010	irm	Valuation Allowances Deductions ValuationAllowancesDeductions	1242000	USD
CY2011	irm	Valuation Allowances Deductions ValuationAllowancesDeductions	9834000	USD
CY2012	irm	Valuation Allowances Other Additions ValuationAllowancesOtherAdditions	1537000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	191175000	USD
CY2012	irm	Income Loss From Continuing Operations Before Income Taxes Canada IncomeLossFromContinuingOperationsBeforeIncomeTaxesCanada	44358000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	62833000	USD
CY2012	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	134231000	USD
CY2012	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-57166000	USD
CY2012	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	25466000	USD
CY2012	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-15134000	USD
CY2012	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	32377000	USD
CY2012	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-4901000	USD
CY2012	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	104428000	USD
CY2012	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	6946000	USD
CY2012	irm	Income Tax Reconciliation Change In Deferred Tax Assets Net Operating Losses Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsNetOperatingLossesValuationAllowance	9045000	USD
CY2012	irm	Income Tax Reconciliation Change In Deferred Tax Assets Tax Credits Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsTaxCreditsValuationAllowance	6771000	USD
CY2012	irm	Income Tax Reconciliation Reserve Reversal And Audit Settlements IncomeTaxReconciliationReserveReversalAndAuditSettlements	-8266000	USD
CY2012	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-30798000	USD
CY2012	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	5470000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	1257000	USD
CY2010	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	272806000	USD
CY2010	irm	Income Loss From Continuing Operations Before Income Taxes Canada IncomeLossFromContinuingOperationsBeforeIncomeTaxesCanada	41474000	USD
CY2010	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	19942000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	313530000	USD
CY2011	irm	Income Loss From Continuing Operations Before Income Taxes Canada IncomeLossFromContinuingOperationsBeforeIncomeTaxesCanada	48327000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-8957000	USD
CY2010	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	76992000	USD
CY2010	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	41825000	USD
CY2010	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	32475000	USD
CY2010	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-851000	USD
CY2010	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	20350000	USD
CY2010	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-3308000	USD
CY2010	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	116978000	USD
CY2010	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	17163000	USD
CY2010	irm	Income Tax Reconciliation Change In Deferred Tax Assets Net Operating Losses Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsNetOperatingLossesValuationAllowance	-2000	USD
CY2010	irm	Income Tax Reconciliation Change In Deferred Tax Assets Tax Credits Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsTaxCreditsValuationAllowance	-39547000	USD
CY2010	irm	Income Tax Reconciliation Reserve Reversal And Audit Settlements IncomeTaxReconciliationReserveReversalAndAuditSettlements	41753000	USD
CY2010	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-7828000	USD
CY2010	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	5359000	USD
CY2011	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	47523000	USD
CY2011	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	25708000	USD
CY2011	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	23828000	USD
CY2011	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-1093000	USD
CY2011	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	31748000	USD
CY2011	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-21226000	USD
CY2011	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	123515000	USD
CY2011	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	16301000	USD
CY2011	irm	Income Tax Reconciliation Change In Deferred Tax Assets Net Operating Losses Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsNetOperatingLossesValuationAllowance	12601000	USD
CY2011	irm	Income Tax Reconciliation Change In Deferred Tax Assets Tax Credits Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsTaxCreditsValuationAllowance	2757000	USD
CY2011	irm	Income Tax Reconciliation Reserve Reversal And Audit Settlements IncomeTaxReconciliationReserveReversalAndAuditSettlements	32989000	USD
CY2011	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-34867000	USD
CY2011	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	8767000	USD
CY2010	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.501	pure
CY2011	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.302	pure
CY2012	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.385	pure
CY2012	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35	pure
CY2011	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	-8477000	USD
CY2010	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	-1607000	USD
CY2012Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	3554000	USD
CY2011Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	2819000	USD
CY2012	irm	Effective Income Tax Rate Reconciliation Increase Decrease Rate Difference EffectiveIncomeTaxRateReconciliationIncreaseDecreaseRateDifference	-0.022	pure
CY2012	irm	Normal Statute Of Limitation Period For Federal Tax Purpose NormalStatuteOfLimitationPeriodForFederalTaxPurpose	P3Y
CY2012Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	37563000	USD
CY2009Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	88155000	USD
CY2010Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	59891000	USD
CY2011Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	31408000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	6598000	USD
CY2010	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	6575000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	6593000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	3912000	USD
CY2010	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	9759000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	6437000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	427000	USD
CY2010	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	3349000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	30316000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	2829000	USD
CY2010	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	33001000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	6268000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	1099000	USD
CY2010	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	8248000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	4929000	USD
CY2012Q4	irm	Unrecognized Tax Benefits Net Of Federal Tax Benefit UnrecognizedTaxBenefitsNetOfFederalTaxBenefit	30504000	USD
CY2012Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	5230000	USD
CY2011Q1	us-gaap	Sales Revenue Services Net SalesRevenueServicesNet	746009000	USD
CY2011Q2	us-gaap	Sales Revenue Services Net SalesRevenueServicesNet	758551000	USD
CY2011Q4	us-gaap	Sales Revenue Services Net SalesRevenueServicesNet	741837000	USD
CY2011Q3	us-gaap	Sales Revenue Services Net SalesRevenueServicesNet	768306000	USD
CY2011Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	137600000	USD
CY2011Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	148937000	USD
CY2011Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	149463000	USD
CY2011Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	135199000	USD
CY2011Q1	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	81176000	USD
CY2011Q2	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	67460000	USD
CY2011Q4	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	47382000	USD
CY2011Q3	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	50394000	USD
CY2011Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-6557000	USD
CY2011Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	185587000	USD
CY2011Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-13381000	USD
CY2011Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-12469000	USD
CY2011Q1	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.41
CY2011Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	37338000	USD
CY2011Q4	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	32056000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	189391000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	1609500000	USD
CY2011	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	2286000	USD
CY2011Q1	us-gaap	Profit Loss ProfitLoss	74619000	USD
CY2011Q2	us-gaap	Profit Loss ProfitLoss	253047000	USD
CY2011Q4	us-gaap	Profit Loss ProfitLoss	34001000	USD
CY2011Q3	us-gaap	Profit Loss ProfitLoss	37925000	USD
CY2011Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	73460000	USD
CY2011Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	252684000	USD
CY2012Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.31
CY2012Q3	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.31
CY2012Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.31
CY2012Q4	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.15
CY2012Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	-0.01
CY2012Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.14
CY2012Q4	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.15
CY2012Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	-0.01
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	207176000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	197390000	USD
CY2011Q2	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.33
CY2011Q4	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.26
CY2011Q3	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.26
CY2011Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	-0.03
CY2011Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.92
CY2011Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	-0.07
CY2011Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	-0.06
CY2011Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.37
CY2011Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.25
CY2011Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.18
CY2011Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.19
CY2011Q1	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.40
CY2011Q2	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.33
CY2011Q4	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.26
CY2011Q3	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.26
CY2011Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	-0.03
CY2011Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.91
CY2011Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	-0.07
CY2011Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	-0.06
CY2011Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.37
CY2011Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.24
CY2011Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.18
CY2011Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.19
CY2012Q1	us-gaap	Sales Revenue Services Net SalesRevenueServicesNet	746498000	USD
CY2012Q2	us-gaap	Sales Revenue Services Net SalesRevenueServicesNet	752165000	USD
CY2012Q3	us-gaap	Sales Revenue Services Net SalesRevenueServicesNet	748125000	USD
CY2012Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	141813000	USD
CY2012Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	158687000	USD
CY2012Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	153966000	USD
CY2012Q1	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	61073000	USD
CY2012Q2	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	41441000	USD
CY2012Q3	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	53719000	USD
CY2012Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-5093000	USD
CY2012Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-2524000	USD
CY2012Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	32000	USD
CY2012Q1	us-gaap	Profit Loss ProfitLoss	55980000	USD
CY2012Q3	us-gaap	Profit Loss ProfitLoss	53751000	USD
CY2012Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	38055000	USD
CY2012Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	52809000	USD
CY2012Q1	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.36
CY2012Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	-0.03
CY2012Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.32
CY2012Q1	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.35
CY2012Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	-0.03
CY2012Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.32
CY2012Q2	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.24
CY2012Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	-0.01
CY2012Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.22
CY2012Q2	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.24
CY2012Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	-0.01
CY2012Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.22
CY2012Q3	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.31
CY2012Q4	us-gaap	Capital Leases Future Minimum Payments Due In Three Years CapitalLeasesFutureMinimumPaymentsDueInThreeYears	31131000	USD
CY2012Q4	us-gaap	Capital Leases Future Minimum Payments Due In Four Years CapitalLeasesFutureMinimumPaymentsDueInFourYears	26450000	USD
CY2012Q4	us-gaap	Capital Leases Future Minimum Payments Due In Five Years CapitalLeasesFutureMinimumPaymentsDueInFiveYears	22474000	USD
CY2012Q4	us-gaap	Capital Leases Future Minimum Payments Due Thereafter CapitalLeasesFutureMinimumPaymentsDueThereafter	142598000	USD
CY2012Q4	us-gaap	Capital Leases Future Minimum Payments Due CapitalLeasesFutureMinimumPaymentsDue	339798000	USD
CY2012Q4	us-gaap	Capital Leases Future Minimum Payments Interest Included In Payments CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments	103972000	USD
CY2012Q4	irm	Capital Leases Future Minimum Payments Present Value Of Net Minimum Payments Excluding Common Area Maintenance Costs CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPaymentsExcludingCommonAreaMaintenanceCosts	235826000	USD
CY2012Q4	us-gaap	Contractual Obligation Due In Next Twelve Months ContractualObligationDueInNextTwelveMonths	22683000	USD
CY2012Q4	us-gaap	Contractual Obligation Due In Second Year ContractualObligationDueInSecondYear	8873000	USD
CY2012Q4	us-gaap	Contractual Obligation Due In Third Year ContractualObligationDueInThirdYear	1221000	USD
CY2012Q4	us-gaap	Contractual Obligation Due In Fourth Year ContractualObligationDueInFourthYear	595000	USD
CY2012Q4	us-gaap	Contractual Obligation Due In Fifth Year ContractualObligationDueInFifthYear	448000	USD
CY2012Q4	us-gaap	Contractual Obligation Due After Fifth Year ContractualObligationDueAfterFifthYear	19000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	227231000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	215659000	USD
CY2012Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.14
CY2012Q4	us-gaap	Sales Revenue Services Net SalesRevenueServicesNet	758467000	USD
CY2012Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	102561000	USD
CY2012Q4	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	27260000	USD
CY2012Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-1074000	USD
CY2012Q4	us-gaap	Profit Loss ProfitLoss	26186000	USD
CY2012Q4	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	25494000	USD
CY2010	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	25445000	USD
CY2010	irm	Adjusted Oibda AdjustedOIBDA	926676000	USD
CY2010Q4	us-gaap	Assets Assets	6416393000	USD
CY2010	us-gaap	Additions To Noncurrent Assets AdditionsToNoncurrentAssets	-285892000	USD
CY2011	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	28861000	USD
CY2011	irm	Adjusted Oibda AdjustedOIBDA	950439000	USD
CY2011	us-gaap	Additions To Noncurrent Assets AdditionsToNoncurrentAssets	-306104000	USD
CY2012	us-gaap	Depreciation Depreciation	280598000	USD
CY2012	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	35746000	USD
CY2012	irm	Adjusted Oibda AdjustedOIBDA	912217000	USD
CY2012	us-gaap	Additions To Noncurrent Assets AdditionsToNoncurrentAssets	-394689000	USD
CY2012	irm	Real Estate Investment Trust Costs RealEstateInvestmentTrustCosts	34446000	USD
CY2011	irm	Real Estate Investment Trust Costs RealEstateInvestmentTrustCosts	15527000	USD
CY2010Q4	us-gaap	Noncurrent Assets NoncurrentAssets	5203931000	USD
CY2011Q4	us-gaap	Noncurrent Assets NoncurrentAssets	5126808000	USD
CY2012Q4	us-gaap	Noncurrent Assets NoncurrentAssets	5334247000	USD
CY2012	irm	Operating Lease Leased Facilities Term Low End Of Range OperatingLeaseLeasedFacilitiesTermLowEndOfRange	P5Y
CY2012	irm	Operating Lease Leased Facilities Term High End Of Range OperatingLeaseLeasedFacilitiesTermHighEndOfRange	P10Y
CY2012	irm	Operating Lease Property Plant And Equipment Primarily Computers Average Lease Life OperatingLeasePropertyPlantAndEquipmentPrimarilyComputersAverageLeaseLife	P3Y
CY2012	irm	Operating Lease Property Plant And Equipment Vehicles Office Equipment Minimum Lease Life OperatingLeasePropertyPlantAndEquipmentVehiclesOfficeEquipmentMinimumLeaseLife	P1Y
CY2012	irm	Operating Lease Property Plant And Equipment Vehicles Office Equipment Maximum Lease Life OperatingLeasePropertyPlantAndEquipmentVehiclesOfficeEquipmentMaximumLeaseLife	P7Y
CY2010	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	238480000	USD
CY2011	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	242954000	USD
CY2012	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	250986000	USD
CY2010	us-gaap	Operating Leases Rent Expense Sublease Rentals1 OperatingLeasesRentExpenseSubleaseRentals1	2721000	USD
CY2011	us-gaap	Operating Leases Rent Expense Sublease Rentals1 OperatingLeasesRentExpenseSubleaseRentals1	2974000	USD
CY2012	us-gaap	Operating Leases Rent Expense Sublease Rentals1 OperatingLeasesRentExpenseSubleaseRentals1	3407000	USD
CY2012	irm	Operating Lease Leased Facilities Renewal Options Minimum OperatingLeaseLeasedFacilitiesRenewalOptionsMinimum	P1Y
CY2012	irm	Operating Lease Leased Facilities Renewal Option Period OperatingLeaseLeasedFacilitiesRenewalOptionPeriod	P5Y
CY2012Q4	us-gaap	Capital Leases Future Minimum Payments Due Current CapitalLeasesFutureMinimumPaymentsDueCurrent	58454000	USD
CY2012Q4	us-gaap	Capital Leases Future Minimum Payments Due In Two Years CapitalLeasesFutureMinimumPaymentsDueInTwoYears	58691000	USD
CY2012Q4	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	700000000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	2646347000	USD
CY2012Q4	irm	Operating Leases Future Minimum Payments Due Future Minimum Sublease Rentals Within One Year OperatingLeasesFutureMinimumPaymentsDueFutureMinimumSubleaseRentalsWithinOneYear	4093000	USD
CY2012Q4	irm	Operating Leases Future Minimum Payments Due Future Minimum Sublease Rentals Within Two Years OperatingLeasesFutureMinimumPaymentsDueFutureMinimumSubleaseRentalsWithinTwoYears	3120000	USD
CY2012Q4	irm	Operating Leases Future Minimum Payments Due Future Minimum Sublease Rentals Within Three Years OperatingLeasesFutureMinimumPaymentsDueFutureMinimumSubleaseRentalsWithinThreeYears	2784000	USD
CY2012Q4	irm	Operating Leases Future Minimum Payments Due Future Minimum Sublease Rentals Within Four Years OperatingLeasesFutureMinimumPaymentsDueFutureMinimumSubleaseRentalsWithinFourYears	2008000	USD
CY2012Q4	irm	Operating Leases Future Minimum Payments Due Future Minimum Sublease Rentals Within Five Years OperatingLeasesFutureMinimumPaymentsDueFutureMinimumSubleaseRentalsWithinFiveYears	1154000	USD
CY2012Q4	irm	Operating Leases Future Minimum Payments Due Future Minimum Sublease Rentals Thereafter OperatingLeasesFutureMinimumPaymentsDueFutureMinimumSubleaseRentalsThereafter	692000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due Future Minimum Sublease Rentals OperatingLeasesFutureMinimumPaymentsDueFutureMinimumSubleaseRentals	13851000	USD
CY2012	irm	Defined Contribution Plan Eligible Employee Deferral Percentage Low End Of Range DefinedContributionPlanEligibleEmployeeDeferralPercentageLowEndOfRange	0.01	pure
CY2012	irm	Defined Contribution Plan Eligible Employee Deferral Percentage High End Of Range DefinedContributionPlanEligibleEmployeeDeferralPercentageHighEndOfRange	0.25	pure
CY2010	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	14282000	USD
CY2011	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	18133000	USD
CY2012	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	18026000	USD
CY2012	us-gaap	Stock Repurchase Program Authorized Amount StockRepurchaseProgramAuthorizedAmount	1200000000	USD
CY2012	us-gaap	Stock Repurchase Program Remaining Authorized Repurchase Amount StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount	66035000	USD
CY2012	irm	Share Repurchase Percent Outstanding Stock Authorized ShareRepurchasePercentOutstandingStockAuthorized	0.01	pure
CY2011Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.1875
CY2011Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.2500
CY2011Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.2500
CY2011Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.2500
CY2012Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.2500
CY2012Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.2700
CY2012Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.2700
CY2012Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	4.0600
CY2012Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.2700
CY2011Q1	us-gaap	Dividends Common Stock DividendsCommonStock	37601000	USD
CY2011Q2	us-gaap	Dividends Common Stock DividendsCommonStock	50694000	USD
CY2011Q3	us-gaap	Dividends Common Stock DividendsCommonStock	46877000	USD
CY2011Q4	us-gaap	Dividends Common Stock DividendsCommonStock	43180000	USD
CY2012Q1	us-gaap	Dividends Common Stock DividendsCommonStock	42791000	USD
CY2012Q2	us-gaap	Dividends Common Stock DividendsCommonStock	46336000	USD
CY2012Q3	us-gaap	Dividends Common Stock DividendsCommonStock	46473000	USD
CY2012Q4	us-gaap	Dividends Common Stock DividendsCommonStock	700000000	USD
CY2011Q2	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.1875
CY2011Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.2500
CY2011Q4	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.2500
CY2012Q1	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.2500
CY2012Q2	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.2500
CY2012Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.2700
CY2012Q4	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.2700
CY2012Q4	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	4.0600
CY2013Q1	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.2700
CY2011Q2	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	37601000	USD
CY2011Q3	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	50694000	USD
CY2011Q4	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	46877000	USD
CY2012Q1	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	43180000	USD
CY2012Q2	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	42791000	USD
CY2012Q3	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	46336000	USD
CY2012Q4	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	46473000	USD
CY2011	us-gaap	Asset Retirement Obligation Foreign Currency Translation AssetRetirementObligationForeignCurrencyTranslation	-26000	USD
CY2011	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	46500000	USD
CY2010	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	10987000	USD
CY2012Q4	us-gaap	Dividends Common Stock DividendsCommonStock	51296000	USD
CY2012	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	-4400000	USD
CY2010Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	9465000	USD
CY2011	irm	Loss On Discontinued Use Of Software Licenses LossOnDiscontinuedUseOfSoftwareLicenses	3500000	USD
CY2012	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-10628000	USD
CY2012Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	20314000	USD
CY2011Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	772393000	USD
CY2012Q4	irm	Number Of Trading Days Used For Value Of Special Dividend NumberOfTradingDaysUsedForValueOfSpecialDividend	P3D
CY2012Q4	irm	Common Stock Price Per Share For Special Dividend CommonStockPricePerShareForSpecialDividend	32.87
CY2012Q4	irm	Reclassification Of Deferred Tax Liabilities Noncurrent ReclassificationOfDeferredTaxLiabilitiesNoncurrent	123946000	USD
CY2010	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	2062000	USD
CY2012	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	-1000000	USD
CY2012Q4	irm	Concentration Risk Number Of Global Banks ConcentrationRiskNumberOfGlobalBanks	5	item
CY2012Q4	irm	Concentration Risk Number Of Triple A Rated Money Market Funds ConcentrationRiskNumberOfTripleARatedMoneyMarketFunds	2	item
CY2010	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	2252000	USD
CY2011	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	919000	USD
CY2012	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	1045000	USD
CY2012	us-gaap	Adjustment For Amortization AdjustmentForAmortization	42694000	USD
CY2012	us-gaap	Share Based Compensation ShareBasedCompensation	30360000	USD
CY2012	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-77201000	USD
CY2012	irm	Foreign Currency Transaction Gain Loss Unrealized And Adjustments Noncash Items To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities Other ForeignCurrencyTransactionGainLossUnrealizedAndAdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesOther	-11764000	USD
CY2012	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	17964000	USD
CY2012	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	58400000	USD
CY2012	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-706000	USD
CY2012	us-gaap	Increase Decrease In Accrued Liabilities And Other Operating Liabilities IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities	34995000	USD
CY2012	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	1009000	USD
CY2012	us-gaap	Interest Paid InterestPaid	231936000	USD
CY2012	us-gaap	Income Taxes Paid IncomeTaxesPaid	228607000	USD
CY2012	us-gaap	Capital Lease Obligations Incurred CapitalLeaseObligationsIncurred	54518000	USD
CY2012	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	51114000	USD
CY2012Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	53042000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Net Current DeferredTaxAssetsNetCurrent	10152000	USD
CY2012Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	164713000	USD
CY2012Q4	irm	Customer Relationships And Acquisition Costs CustomerRelationshipsAndAcquisitionCosts	456120000	USD
CY2012Q4	us-gaap	Deferred Finance Costs Noncurrent Net DeferredFinanceCostsNoncurrentNet	43850000	USD
CY2012Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	21791000	USD
CY2012Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	168120000	USD
CY2012Q4	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	217133000	USD
CY2012Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	62917000	USD
CY2012Q4	us-gaap	Deferred Rent Credit Noncurrent DeferredRentCreditNoncurrent	97356000	USD
CY2012Q4	us-gaap	Common Stock Value CommonStockValue	1900000	USD
CY2012Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	942199000	USD
CY2012Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	185558000	USD
CY2012	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	73453000	USD
CY2012	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	34688000	USD
CY2012	us-gaap	Dividends Common Stock DividendsCommonStock	328707000	USD
CY2012	us-gaap	Minority Interest Increase From Stock Issuance MinorityInterestIncreaseFromStockIssuance	836000	USD
CY2012	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	1722000	USD
CY2013Q1	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	51296000	USD
CY2011Q4	us-gaap	Dividends Payable Current DividendsPayableCurrent	43180000	USD
CY2012Q4	us-gaap	Dividends Payable Current DividendsPayableCurrent	53042000	USD
CY2012	irm	Allocated Share Based Compensation Expense Earnings Per Share Basic AllocatedShareBasedCompensationExpenseEarningsPerShareBasic	0.14
CY2012	irm	Allocated Share Based Compensation Expense Earnings Per Share Diluted AllocatedShareBasedCompensationExpenseEarningsPerShareDiluted	0.13
CY2012Q4	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	140000000	USD
CY2012Q4	us-gaap	Stock Issued During Period Value Stock Dividend StockIssuedDuringPeriodValueStockDividend	560000000	USD
CY2012Q4	us-gaap	Stock Dividends Shares StockDividendsShares	17000000	shares
CY2012	irm	Reporting Units Number ReportingUnitsNumber	6	unit
CY2012Q4	irm	Debt Instrument Ownership Percent Subsidiary Guarantor DebtInstrumentOwnershipPercentSubsidiaryGuarantor	1.00	pure

Files In Submission

Name	View Source	Status
0001047469-13-002039-index-headers.html	Edgar Link	pending
0001047469-13-002039-index.html	Edgar Link	pending
0001047469-13-002039.txt	Edgar Link	pending
0001047469-13-002039-xbrl.zip	Edgar Link	pending
a2213054z10-k.htm	Edgar Link	pending
a2213054zex-10_35.htm	Edgar Link	pending
a2213054zex-10_39.htm	Edgar Link	pending
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a2213054zex-32_1.htm	Edgar Link	pending
a2213054zex-32_2.htm	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xls	Edgar Link	pending
irm-20121231.xml	Edgar Link	completed
irm-20121231.xsd	Edgar Link	pending
irm-20121231_cal.xml	Edgar Link	unprocessable
irm-20121231_def.xml	Edgar Link	unprocessable
irm-20121231_lab.xml	Edgar Link	unprocessable
irm-20121231_pre.xml	Edgar Link	unprocessable
R1.htm	Edgar Link	pending
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report.css	Edgar Link	pending
Show.js	Edgar Link	pending

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$IRM
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2011 Q4 Form 10-K Financial Statement

#000104746913002039 Filed on March 01, 2013

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$IRM IRON MOUNTAIN INC Stock $irm

2011 Q4 Form 10-K Financial Statement

#000104746913002039 Filed on March 01, 2013

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$IRM
IRON MOUNTAIN INC Stock $irm