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v3.22.2

Debt - Cash Pooling (Details) $ in Thousands | Mar. 31, 2022 USD ($) cash_pool | Dec. 31, 2021 USD ($) cash_pool | Dec. 31, 2020 USD ($)
--- | --- | --- | ---
Debt Instrument [Line Items] |  |  |
Number of cash pools | cash_pool |  | 2 |
Bank Mendes Gans |  |  |
Debt Instrument [Line Items] |  |  |
Number of cash pools | cash_pool | 2 |  |
JP Morgan Chase Bank |  |  |
Debt Instrument [Line Items] |  |  |
Number of cash pools | cash_pool | 2 | 2 |
BMG QRS Cash Pool |  |  |
Debt Instrument [Line Items] |  |  |
Number of cash pools | cash_pool |  | 1 |
BMG QRS Cash Pool | Bank Mendes Gans |  |  |
Debt Instrument [Line Items] |  |  |
Number of cash pools | cash_pool | 1 |  |
GROSS CASH POSITION | $ 554,600 | $ 552,900 |
OUTSTANDING DEBIT BALANCES | (553,100) | (552,100) | $ (447,400)
NET CASH POSITION | $ 1,500 | $ 800 | 1,300
BMG QRS Cash Pool | JP Morgan Chase Bank |  |  |
Debt Instrument [Line Items] |  |  |
Number of cash pools | cash_pool | 1 | 1 |
GROSS CASH POSITION | $ 13,600 | $ 9,400 |
OUTSTANDING DEBIT BALANCES | (13,500) | (9,200) | 0
NET CASH POSITION | $ 100 | $ 200 | 0
BMG TRS Cash Pool |  |  |
Debt Instrument [Line Items] |  |  |
Number of cash pools | cash_pool |  | 1 |
BMG TRS Cash Pool | Bank Mendes Gans |  |  |
Debt Instrument [Line Items] |  |  |
Number of cash pools | cash_pool | 1 |  |
GROSS CASH POSITION | $ 552,900 | $ 606,000 |
OUTSTANDING DEBIT BALANCES | (551,700) | (603,900) | (553,500)
NET CASH POSITION | $ 1,200 | $ 2,100 | 2,000
BMG TRS Cash Pool | JP Morgan Chase Bank |  |  |
Debt Instrument [Line Items] |  |  |
Number of cash pools | cash_pool | 1 | 1 |
GROSS CASH POSITION | $ 17,000 | $ 12,000 |
OUTSTANDING DEBIT BALANCES | (16,600) | (9,900) | 0
NET CASH POSITION | $ 400 | $ 2,100 | $ 0

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- Definition Cash Pool Agreement, Cash Position, Gross + References No definition available. + Details
Name: | irm_CashPoolAgreementCashPositionGross
Namespace Prefix: | irm_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Cash Pool Agreement, Cash Position, Net + References No definition available. + Details
Name: | irm_CashPoolAgreementCashPositionNet
Namespace Prefix: | irm_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Cash Pool Agreement, Number Of Cash Pools + References No definition available. + Details
Name: | irm_CashPoolAgreementNumberOfCashPools
Namespace Prefix: | irm_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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- Definition Cash Pool Agreement, Outstanding Borrowings + References No definition available. + Details
Name: | irm_CashPoolAgreementOutstandingBorrowings
Namespace Prefix: | irm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | srt_CounterpartyNameAxis=irm_BankMendesGansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | srt_CounterpartyNameAxis=irm_JPMorganChaseBankMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_DebtInstrumentAxis=irm_QRSCashPoolMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_DebtInstrumentAxis=irm_TRSCashPoolMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |