CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified	1 Months Ended						3 Months Ended
	Mar. 31, 2013	Dec. 31, 2012	Oct. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Mar. 31, 2013	Mar. 31, 2012
Revenues:
Storage rental							$ 442,469	$ 425,341
Service							304,562	321,157
Total Revenues							747,031	746,498
Operating Expenses:
Cost of sales (excluding depreciation and amortization)							321,076	315,298
Selling, general and administrative							223,451	210,660
Depreciation and amortization							80,201	78,008
Loss (Gain) on disposal/write-down of property, plant and equipment, net							(539)	719
Total Operating Expenses							624,189	604,685
Operating Income (Loss)							122,842	141,813
Interest Expense, Net (includes Interest Income of $545 and $225 for the three months ended March 31, 2012 and 2013, respectively)							63,182	58,784
Other (Income) Expense, Net							2,739	(3,304)
Income (Loss) from Continuing Operations Before Provision (Benefit) for Income Taxes							56,921	86,333
Provision (Benefit) for Income Taxes							38,571	25,260
Income (Loss) from Continuing Operations							18,350	61,073
(Loss) Income from Discontinued Operations, Net of Tax							2,184	(5,093)
Net Income (Loss)							20,534	55,980
Less: Net Income (Loss) Attributable to Noncontrolling Interests							1,148	630
Net Income (Loss) Attributable to Iron Mountain Incorporated							$ 19,386	$ 55,350
Earnings (Losses) per Share-Basic:
Income (Loss) from Continuing Operations (in dollars per share)							$ 0.10	$ 0.36
Total (Loss) Income from Discontinued Operations (in dollars per share)							$ 0.01	$ (0.03)
Net Income (Loss) Attributable to Iron Mountain Incorporated (in dollars per share)							$ 0.10	$ 0.32
Earnings (Losses) per Share-Diluted:
Income (Loss) from Continuing Operations (in dollars per share)							$ 0.10	$ 0.35
Total (Loss) Income from Discontinued Operations (in dollars per share)							$ 0.01	$ (0.03)
Net Income (Loss) Attributable to Iron Mountain Incorporated (in dollars per share)							$ 0.10	$ 0.32
Weighted Average Common Shares Outstanding-Basic							190,213	171,320
Weighted Average Common Shares Outstanding-Diluted							192,110	172,223
Dividends Declared per Common Share (in dollars per share)	$ 0.2700	$ 0.2700	$ 4.0600	$ 0.2700	$ 0.2700	$ 0.2500	$ 0.2700	$ 0.2500