Senior Unsecured Notes and Secured Debt (Tables)

3 Months Ended

Jun. 30, 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	$	105,559	$	405,559
2014		0		343,749		343,749
2015(4)		487,801		401,401		889,202
2016		1,200,000		378,596		1,578,596
2017		450,000		336,569		786,569
Thereafter		4,194,400		1,273,151		5,467,551
Totals	$	6,632,201	$	2,839,025	$	9,471,226
(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 1.0% to 8.1%. Carrying value of the properties securing the debt totaled $5,285,483,000 at June 30, 2013.
(4) On July 30, 2012, we completed funding on a $250,000,000 Canadian denominated unsecured term loan (approximately $237,801,000 USD at exchange rates on June 30, 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 (2.67% at June 30, 2013).

Summary of senior unsecured note activity

	Six Months Ended
	June 30, 2013			June 30, 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%		600,000	4.125%
Debt redeemed		(3)	3.000%		(125,585)	4.750%
Ending balance	$	6,394,400	4.431%	$	4,939,342	5.021%

Secured debt principal activity

	Six Months Ended
		June 30, 2013		June 30, 2012
			Weighted Avg.			Weighted Avg.
	Amount		Interest Rate	Amount		Interest Rate
Beginning balance	$	2,311,586	5.14%	$	2,108,373	5.34%
Debt issued		71,340	4.96%		139,395	4.43%
Debt assumed		536,856	4.22%		284,988	5.68%
Debt extinguished		(49,156)	4.20%		(229,207)	4.22%
Foreign currency		(6,892)	3.87%		-	0.00%
Principal payments		(24,709)	5.39%		(18,106)	5.55%
Ending balance	$	2,839,025	5.08%	$	2,285,443	5.45%