Debt (Tables)

3 Months Ended

Mar. 31, 2012

Debt

Carrying amount and fair value of long-term debt instruments

	December 31, 2011					March 31, 2012
	Carrying Amount			Fair Value		Carrying Amount			Fair Value
Revolving Credit Facility(1)	$	96,000		$	96,000	$	190,000		$	190,000
Term Loan Facility(1)		487,500			487,500		481,250			481,250
71/4% GBP Senior Subordinated Notes due 2014 (the "71/4% Notes")(2)(3)		233,115			233,115		240,210			240,210
65/8% Senior Subordinated Notes due 2016 (the "65/8% Notes")(2)(3)		318,025			320,400		318,147			319,392
71/2% CAD Senior Subordinated Notes due 2017 (the "Subsidiary Notes")(2)(4)		171,273			174,698		175,245			180,940
83/4% Senior Subordinated Notes due 2018 (the "83/4% Notes")(2)(3)		200,000			209,000		200,000			206,870
8% Senior Subordinated Notes due 2018 (the "8% Notes")(2)(3)		49,806			47,607		49,813			54,140
63/4% Euro Senior Subordinated Notes due 2018 (the "63/4% Notes")(2)(3)		328,750			312,352		338,508			343,623
73/4% Senior Subordinated Notes due 2019 (the "73/4% Notes due 2019")(2)(3)		400,000			422,750		400,000			437,000
8% Senior Subordinated Notes due 2020 (the "8% Notes due 2020")(2)(3)		300,000			313,313		300,000			317,625
83/8% Senior Subordinated Notes due 2021 (the "83/8% Notes")(2)(3)		548,346			586,438		548,389			598,813
Real Estate Mortgages, Capital Leases and Other(5)		220,773			220,773		212,114			212,114
Total Long-term Debt		3,353,588					3,453,676
Less Current Portion		(73,320	)				(63,229	)
Long-term Debt, Net of Current Portion	$	3,280,268				$	3,390,447

(1)

The capital stock or other equity interests of most of our U.S. subsidiaries, and up to 66% of the capital stock or other equity interests of our first-tier foreign subsidiaries, are pledged to secure these debt instruments, together with all intercompany obligations of foreign subsidiaries owed to us or to one of our U.S. subsidiary guarantors. The fair value of this long-term debt approximates the carrying value (as borrowings under these debt instruments are based on current variable market interest rates as of December 31, 2011 and March 31, 2012, respectively).

(2)

The fair values of these debt instruments are based on quoted market prices for these notes on December 31, 2011 and March 31, 2012, respectively.

(3)

Collectively, the "Parent Notes". IMI is the direct obligor on the Parent Notes, which are fully and unconditionally guaranteed, on a senior subordinated basis, by substantially all of its direct and indirect wholly owned U.S. subsidiaries (the "Guarantors"). These guarantees are joint and several obligations of the Guarantors. Iron Mountain Canada Corporation ("Canada Company") and the remainder of our subsidiaries do not guarantee the Parent Notes.

(4)

Canada Company is the direct obligor on the Subsidiary Notes, which are fully and unconditionally guaranteed, on a senior subordinated basis, by IMI and the Guarantors. These guarantees are joint and several obligations of IMI and the Guarantors.

(5)

We believe the fair value of this debt approximates its carrying value.

Term loan payments required as a percentage of original principal amount

Year Ending	Percentage
June 30, 2012		5	%
June 30, 2013		5	%
June 30, 2014		10	%
June 30, 2015		15	%
June 27, 2016		65	%