CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified	1 Months Ended						3 Months Ended		6 Months Ended
	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Revenues:
Storage rental							$ 433,436	$ 419,146	$ 858,777	$ 834,851
Service							318,729	339,405	639,886	669,709
Total Revenues							752,165	758,551	1,498,663	1,504,560
Operating Expenses:
Cost of sales (excluding depreciation and amortization)							313,060	307,577	628,358	623,532
Selling, general and administrative							203,515	223,389	414,175	436,144
Depreciation and amortization							77,510	78,868	155,518	159,031
(Gain) Loss on disposal/write-down of property, plant and equipment, net							(607)	(220)	112	(684)
Total Operating Expenses							593,478	609,614	1,198,163	1,218,023
Operating Income (Loss)							158,687	148,937	300,500	286,537
Interest Expense, Net (includes Interest Income of $493 and $810 for the three months ended and $1,044 and $1,355 for the six months ended June 30, 2011 and 2012, respectively)							58,216	48,604	117,000	97,222
Other Expense (Income), Net							10,066	2,621	6,762	(6,337)
Income (Loss) from Continuing Operations Before Provision (Benefit) for Income Taxes							90,405	97,712	176,738	195,652
Provision (Benefit) for Income Taxes							48,964	30,252	74,224	47,016
Income (Loss) from Continuing Operations							41,441	67,460	102,514	148,636
Income (Loss) from Discontinued Operations, Net of Tax							(639)	(7,762)	(5,732)	(14,319)
Gain (Loss) on Sale of Discontinued Operations, Net of Tax							(1,885)	193,349	(1,885)	193,349
Net Income (Loss)							38,917	253,047	94,897	327,666
Less: Net Income (Loss) Attributable to Noncontrolling Interests							862	363	1,492	1,522
Net Income (Loss) Attributable to Iron Mountain Incorporated							$ 38,055	$ 252,684	$ 93,405	$ 326,144
Earnings (Losses) per Share-Basic:
Income (Loss) from Continuing Operations (in dollars per share)							$ 0.24	$ 0.33	$ 0.60	$ 0.74
Total Income (Loss) from Discontinued Operations (in dollars per share)							$ (0.01)	$ 0.92	$ (0.04)	$ 0.89
Net Income (Loss) Attributable to Iron Mountain Incorporated (in dollars per share)							$ 0.22	$ 1.25	$ 0.55	$ 1.62
Earnings (Losses) per Share-Diluted:
Income (Loss) from Continuing Operations (in dollars per share)							$ 0.24	$ 0.33	$ 0.60	$ 0.73
Total Income (Loss) from Discontinued Operations (in dollars per share)							$ (0.01)	$ 0.91	$ (0.04)	$ 0.89
Net Income (Loss) Attributable to Iron Mountain Incorporated (in dollars per share)							$ 0.22	$ 1.24	$ 0.54	$ 1.61
Weighted Average Common Shares Outstanding-Basic (in shares)							171,296	201,653	171,308	200,941
Weighted Average Common Shares Outstanding-Diluted (in shares)							172,231	203,311	172,227	202,281
Dividends Declared per Common Share (in dollars per share)	$ 0.2700	$ 0.2500	$ 0.2500	$ 0.2500	$ 0.2500	$ 0.1875	$ 0.2700	$ 0.2500	$ 0.5200	$ 0.4375