Senior Unsecured Notes and Secured Debt (Tables)

3 Months Ended

Mar. 31, 2013

Senior Unsecured Notes And Secured Debt (Tables) [Abstract]

Principal payments due on debt obligations

	Senior		Secured
	Unsecured Notes(1,2)		Debt (1,3)		Totals
2013	$	300,000	$	100,367	$	400,367
2014		0		278,237		278,237
2015(4)		495,724		224,607		720,331
2016		1,200,000		328,865		1,528,865
2017		450,000		320,537		770,537
Thereafter		4,194,403		1,172,420		5,366,823
Totals	$	6,640,127	$	2,425,033	$	9,065,160
(1) Amounts represent principal amounts due and do not include unamortized premiums/discounts or other fair value adjustments as reflected on the balance sheet.
(2) Annual interest rates range from 3.0% to 6.5%, excluding the Canadian denominated unsecured term loan discussed in footnote 4 and the $500,000,000 unsecured term loan discussed below.
(3) Annual interest rates range from 0.4% to 8.0%. Carrying value of the properties securing the debt totaled $4,157,430,000 at March 31, 2013.
(4) On July 30, 2012, we completed funding on a $250,000,000 Canadian denominated unsecured term loan (approximately $245,724,000 USD at exchange rates on March 31, 2013). The loan matures July 27, 2015 (with an option to extend for an additional year at our discretion) and bears interest at the Canadian Dealer Offered Rate plus 145 basis points (2.65% at March 31, 2013).

Summary of senior unsecured note issuances

	Three Months Ended
	March 31, 2013			March 31, 2012
			Weighted Avg.			Weighted Avg.
	Amount		Interest Rate	Amount		Interest Rate
Beginning balance	$	5,894,403	4.675%	$	4,464,927	5.133%
Debt issued		500,000	1.552%		-	0.000%
Debt redeemed		-	0.000%		(22)	4.750%
Ending balance	$	6,394,403	4.431%	$	4,464,905	5.133%

Secured debt principal activity

	Three Months Ended
		March 31, 2013		March 31, 2012
			Weighted Avg.			Weighted Avg.
	Amount		Interest Rate	Amount		Interest Rate
Beginning balance	$	2,311,586	5.14%	$	2,108,384	5.29%
Debt issued		-	0.00%		111,000	4.18%
Debt assumed		132,680	5.49%		158,290	5.86%
Debt extinguished		(7,807)	7.43%		(33,092)	4.30%
Foreign currency		6	5.62%		-	0.00%
Principal payments		(11,432)	5.44%		(8,500)	5.49%
Ending balance	$	2,425,033	5.17%	$	2,336,082	5.04%