CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Revenues:
Storage rental	$ 676,956	$ 669,288	$ 1,360,503	$ 1,332,262
Service	305,283	397,619	690,467	788,508
Total Revenues	982,239	1,066,907	2,050,970	2,120,770
Operating Expenses:
Cost of sales (excluding depreciation and amortization)	406,693	463,809	873,614	924,455
Selling, general and administrative	241,947	252,156	480,680	520,867
Depreciation and amortization	163,850	164,331	326,434	326,814
Significant Acquisition Costs (see Note 2.o.)	0	1,901	0	4,647
Restructuring Charges (see Note 10)	39,298	0	80,344	0
Intangible impairments (see Note 2.b.)	0	0	23,000	0
(Gain) Loss on disposal/write-down of property, plant and equipment, net (see Note 2.l.)	(1,275)	(8,405)	(2,330)	(7,803)
Total Operating Expenses	850,513	873,792	1,781,742	1,768,980
Operating Income (Loss)	131,726	193,115	269,228	351,790
Interest Expense, Net (includes interest income of $2,567 and $1,461 for the three months ended June 30, 2020 and 2019, respectively)	103,456	105,314	209,105	207,750
Other Expense (Income), Net	25,700	(15,192)	(17,026)	18
Income (Loss) from Continuing Operations Before Provision (Benefit) for Income Taxes	2,570	102,993	77,149	144,022
Provision (Benefit) for Income Taxes	9,683	10,646	19,370	21,199
(Loss) Income from Continuing Operations	(7,113)	92,347	57,779	122,823
Income (Loss) from Discontinued Operations, Net of Tax	0	128	0	104
Net Income (Loss)	(7,113)	92,475	57,779	122,927
Less: Net (Loss) Income Attributable to Noncontrolling Interests	(27)	34	890	925
Net (Loss) Income Attributable to Iron Mountain Incorporated	$ (7,086)	$ 92,441	$ 56,889	$ 122,002
(Losses) Earnings per Share—Basic:
Income (Loss) from Continuing Operations (in dollars per share)	$ (0.02)	$ 0.32	$ 0.20	$ 0.43
Total Income (Loss) from Discontinued Operations, Net of Tax (in dollars per share)	0	0	0	0
Net Income (Loss) Attributable to Iron Mountain Incorporated (in dollars per share)	(0.02)	0.32	0.20	0.43
(Losses) Earnings per Share—Diluted:
Income (Loss) from Continuing Operations (in dollars per share)	(0.02)	0.32	0.20	0.42
Total Income (Loss) from Discontinued Operations, Net of Tax (in dollars per share)	0	0	0	0
Net Income (Loss) Attributable to Iron Mountain Incorporated (in dollars per share)	$ (0.02)	$ 0.32	$ 0.20	$ 0.42
Weighted Average Common Shares Outstanding-Basic (in shares)	288,071,000	286,925,000	287,955,000	286,727,000
Weighted Average Common Shares Outstanding-Diluted (in shares)	288,071,000	287,481,288	288,300,617	287,487,056