CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Current Assets:
Cash and cash equivalents	$ 258,866	$ 243,415
Restricted cash	33,613	33,612
Accounts receivable (less allowances of $25,209 and $26,764 as of December 31, 2012 and June 30, 2013, respectively)	581,481	572,200
Deferred income taxes	15,918	10,152
Prepaid expenses and other	156,104	164,713
Total Current Assets	1,045,982	1,024,092
Property, Plant and Equipment:
Property, plant and equipment	4,465,713	4,443,323
Less-Accumulated depreciation	(2,013,404)	(1,965,596)
Property, Plant and Equipment, net	2,452,309	2,477,727
Other Assets, net:
Goodwill	2,317,157	2,334,759
Customer relationships and acquisition costs	457,710	456,120
Deferred financing costs	40,923	43,850
Other	20,738	21,791
Total Other Assets, net	2,836,528	2,856,520
Total Assets	6,334,819	6,358,339
Current Liabilities:
Current portion of long-term debt	324,682	92,887
Accounts payable	141,686	168,120
Accrued expenses	396,074	426,813
Deferred revenue	210,483	217,133
Total Current Liabilities	1,072,925	904,953
Long-term Debt, net of current portion	3,614,018	3,732,116
Other Long-term Liabilities	66,552	62,917
Deferred Rent	94,189	97,356
Deferred Income Taxes	393,596	398,549
Commitments and Contingencies (see Note 8)
Iron Mountain Incorporated Stockholders' Equity:
Preferred stock (par value $0.01; authorized 10,000,000 shares; none issued and outstanding)
Common stock (par value $0.01; authorized 400,000,000 shares; issued and outstanding 190,005,788 shares and 191,109,705 shares as of December 31, 2012 and June 30, 2013, respectively)	1,911	1,900
Additional paid-in capital	973,095	942,199
Retained earnings	126,964	185,558
Accumulated other comprehensive items, net	(21,697)	20,314
Total Iron Mountain Incorporated Stockholders' Equity	1,080,273	1,149,971
Noncontrolling Interests	13,266	12,477
Total Equity	1,093,539	1,162,448
Total Liabilities and Equity	$ 6,334,819	$ 6,358,339