CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified	1 Months Ended					3 Months Ended
	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Mar. 31, 2012	Mar. 31, 2011
Revenues:
Storage						$ 425,341	$ 415,705
Service						321,157	330,304
Total Revenues						746,498	746,009
Operating Expenses:
Cost of sales (excluding depreciation and amortization)						315,298	315,955
Selling, general and administrative						210,660	212,755
Depreciation and amortization						78,008	80,163
(Gain) Loss on disposal/write-down of property, plant and equipment, net						719	(464)
Total Operating Expenses						604,685	608,409
Operating Income (Loss)						141,813	137,600
Interest Expense, Net (includes Interest Income of $551 and $545 for the three months ended March 31, 2011 and 2012, respectively)						58,784	48,618
Other (Income) Expense, Net						(3,304)	(8,958)
Income (Loss) from Continuing Operations Before Provision (Benefit) for Income Taxes						86,333	97,940
Provision (Benefit) for Income Taxes						25,260	16,764
Income (Loss) from Continuing Operations						61,073	81,176
Income (Loss) from Discontinued Operations, Net of Tax						(5,093)	(6,557)
Net Income (Loss)						55,980	74,619
Less: Net Income (Loss) Attributable to Noncontrolling Interests						630	1,159
Net Income (Loss) Attributable to Iron Mountain Incorporated						$ 55,350	$ 73,460
Earnings (Losses) per Share-Basic:
Income (Loss) from Continuing Operations (in dollars per share)						$ 0.36	$ 0.41
Total Income (Loss) from Discontinued Operations (in dollars per share)						$ (0.03)	$ (0.03)
Net Income (Loss) Attributable to Iron Mountain Incorporated (in dollars per share)						$ 0.32	$ 0.37
Earnings (Losses) per Share-Diluted:
Income (Loss) from Continuing Operations (in dollars per share)						$ 0.35	$ 0.40
Total Income (Loss) from Discontinued Operations (in dollars per share)						$ (0.03)	$ (0.03)
Net Income (Loss) Attributable to Iron Mountain Incorporated (in dollars per share)						$ 0.32	$ 0.37
Weighted Average Common Shares Outstanding-Basic (in shares)						171,320	200,228
Weighted Average Common Shares Outstanding-Diluted (in shares)						172,223	201,251
Dividends Declared per Common Share (in dollars per share)	$ 0.2500	$ 0.2500	$ 0.2500	$ 0.2500	$ 0.1875	$ 0.2500	$ 0.1875