XML 76 R65.htm IDEA: XBRL DOCUMENT
v3.20.2

Stockholders' Equity Matters - Dividends Declared (Details) $ / shares in Units, shares in Thousands, $ in Thousands |  |  |  |  |  |  |  |  |  |  |  |  |  | 1 Months Ended | 3 Months Ended | 6 Months Ended
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Aug. 05, 2020 $ / shares | Jun. 15, 2020 USD ($) | May 05, 2020 $ / shares | Mar. 16, 2020 USD ($) | Feb. 13, 2020 $ / shares | Dec. 16, 2019 USD ($) | Oct. 31, 2019 $ / shares | Sep. 16, 2019 USD ($) | Jul. 26, 2019 $ / shares | Jun. 17, 2019 USD ($) | May 22, 2019 $ / shares | Mar. 15, 2019 USD ($) | Feb. 07, 2019 $ / shares | Oct. 31, 2017 USD ($) | Jun. 30, 2020 USD ($) | Jun. 30, 2019 USD ($) | Jun. 30, 2020 USD ($) shares | Jun. 30, 2019 USD ($)
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dividend per share (in dollars per share) | $ / shares |  |  | $ 0.6185 |  | $ 0.6185 |  | $ 0.6185 |  | $ 0.6110 |  | $ 0.6110 |  | $ 0.6110 |  |  |  |  |
Total Amount |  | $ 178,212 |  | $ 178,047 |  | $ 177,687 |  | $ 175,434 |  | $ 175,389 |  | $ 175,242 |  |  | $ 179,342 | $ 176,642 | $ 358,854 | $ 353,102
At The Market (ATM) Equity Program |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of banks |  |  |  |  |  |  |  |  |  |  |  |  |  | 10 |  |  |  |
Aggregate sales price of common stock |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 500,000 |  |  |  |
Shares of common stock sold (in shares) | shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 |
Remaining aggregate sale price of shares of common stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 431,200 |  | $ 431,200 |
Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dividend per share (in dollars per share) | $ / shares | $ 0.6185 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

X
- Definition Number Of Banks + References No definition available. + Details
Name: | irm_NumberOfBanks
Namespace Prefix: | irm_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Sale of Stock, Authorized Amount + References No definition available. + Details
Name: | irm_SaleofStockAuthorizedAmount
Namespace Prefix: | irm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Sale of Stock, Remaining Aggregate Sale Price Of Stock Available For Distribution + References No definition available. + Details
Name: | irm_SaleofStockRemainingAggregateSalePriceOfStockAvailableForDistribution
Namespace Prefix: | irm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Aggregate dividends declared during the period for each share of common stock outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770 + Details
Name: | us-gaap_CommonStockDividendsPerShareDeclared
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of paid and unpaid common stock dividends declared with the form of settlement in cash, stock and payment-in-kind (PIK). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 405 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6957935&loc=d3e64057-112817 + Details
Name: | us-gaap_DividendsCommonStock
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The number of shares issued or sold by the subsidiary or equity method investee per stock transaction. + References No definition available. + Details
Name: | us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- 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_SubsidiaryOrEquityMethodInvesteeLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_SubsidiarySaleOfStockAxis=irm_AtTheMarketATMEquityProgramMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |