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Stockholders' Equity Matters - Noncontrolling Interest (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Sep. 30, 2024	Sep. 29, 2024	Dec. 31, 2023
Noncontrolling Interest [Line Items]
Noncontrolling Interests	$ 198,448			$ 125
Iron Mountain Data Centers Virginia 4/5 JV, LP
Noncontrolling Interest [Line Items]
Noncontrolling Interests			$ 53,400
Iron Mountain Data Centers Virginia 6/7 JV, LLC
Noncontrolling Interest [Line Items]
Noncontrolling Interests		$ 103,100

X

- Definition

Amount of equity (deficit) attributable to noncontrolling interest. Excludes temporary equity.

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