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CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Statement of Comprehensive Income [Abstract]
Net (Loss) Income	$ (7,113)	$ 92,475	$ 57,779	$ 122,927
Other Comprehensive Income (Loss):
Foreign Currency Translation Adjustment	69,027	(5,791)	(154,625)	12,400
Change in Fair Value of Derivative Instruments	(2,961)	(4,931)	(11,323)	(7,605)
Total Other Comprehensive Income (Loss)	66,066	(10,722)	(165,948)	4,795
Comprehensive Income (Loss)	58,953	81,753	(108,169)	127,722
Comprehensive Income (Loss) Attributable to Noncontrolling Interests	314	173	(116)	1,877
Comprehensive Income (Loss) Attributable to Iron Mountain Incorporated	$ 58,639	$ 81,580	$ (108,053)	$ 125,845

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