CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Statement of Comprehensive Income [Abstract]
Net (Loss) Income	$ 81,122	$ (13,133)	$ 139,629	$ 49,908
Other Comprehensive Income (Loss):
Foreign Currency Translation Adjustments	7,538	2,789	58,322	26,767
Market Value Adjustments for Securities			0	(734)
Total Other Comprehensive Income (Loss)	7,538	2,789	58,322	26,033
Comprehensive (Loss) Income	88,660	(10,344)	197,951	75,941
Comprehensive Income (Loss) Attributable to Noncontrolling Interests	2,381	753	2,213	1,507
Comprehensive Income (Loss) Attributable to Iron Mountain Incorporated	$ 86,279	$ (11,097)	$ 195,738	$ 74,434

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income (loss) and other comprehensive income (loss), attributable to noncontrolling interests. Excludes changes in equity resulting from investments by owners and distributions to owners.

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Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income. Excludes changes in equity resulting from investments by owners and distributions to owners.

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Amount after tax and reclassification adjustments, of appreciation (loss) in value of unsold available-for-sale securities. Excludes amounts related to other than temporary impairment (OTTI) loss.

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Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.

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Amount after tax and reclassification adjustments of other comprehensive income (loss).

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The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

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