Senior Unsecured Notes and Secured Debt (Tables)

12 Months Ended

Dec. 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
2014	$	0	$	330,295	$	330,295
2015(4)		485,029		409,239		894,268
2016(5)		1,200,000		382,917		1,582,917
2017		450,000		324,110		774,110
2018		450,000		429,284		879,284
Thereafter(6)		4,836,678		1,134,866		5,971,544
Totals	$	7,421,707	$	3,010,711	$	10,432,418
(1) Amounts represent principal amounts due and do not include unamortized premiums/discounts or other fair value adjustments as reflected on the consolidated balance sheet.
(2) Annual interest rates range from 1.5% to 6.5%.
(3) Annual interest rates range from 1.0% to 8.0%. Carrying value of the properties securing the debt totaled $6,243,475,000 at December 31, 2013.
(4) On July 30, 2012, we completed funding on a $250,000,000 Canadian denominated unsecured term loan (approximately $235,029,000 based on the Canadian/U.S. Dollar exchange rate on December 31, 2013). The loan matures on 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 (2.7% at December 31, 2013).
(5) On January 8, 2013, we completed funding on a $500,000,000 unsecured term loan. The loan matures on March 31, 2016 (with an option to extend for two additional years at our discretion) and bears interest at LIBOR plus 135 basis points (1.5% at December 31, 2013).
(6) On November 20, 2013, we completed funding on a £550,000,000 (approximately $911,570,000 based on the Sterling/U.S. Dollar exchange rate on December 31, 2013) of 4.8% senior unsecured notes due 2028.

Summary of senior unsecured note issuances

	Year Ended
	December 31, 2013			December 31, 2012			December 31, 2011
			Weighted Avg.			Weighted Avg.			Weighted Avg.
	Amount		Interest Rate	Amount		Interest Rate	Amount		Interest Rate
Beginning balance	$	5,894,403	4.675%	$	4,464,927	5.133%	$	3,064,930	5.129%
Debt issued		1,786,930	3.824%		1,800,000	3.691%		1,400,000	5.143%
Debt extinguished		(300,000)	6.000%		(76,853)	8.000%		(3)	4.750%
Debt redeemed		(219,295)	3.000%		(293,671)	4.750%		-	0.000%
Foreign currency		24,640	4.800%		-	0.000%		-	0.000%
Ending balance	$	7,186,678	4.456%	$	5,894,403	4.675%	$	4,464,927	5.133%

Secured debt principal activity

	Year Ended
		December 31, 2013		December 31, 2012			December 31, 2011
			Weighted Avg.			Weighted Avg.			Weighted Avg.
	Amount		Interest Rate	Amount		Interest Rate	Amount		Interest Rate
Beginning balance	$	2,311,586	5.140%	$	2,108,384	5.285%	$	1,133,715	5.972%
Debt issued		89,208	4.982%		157,418	4.212%		116,903	5.697%
Debt assumed		1,290,858	4.159%		444,744	5.681%		940,854	4.444%
Debt extinguished		(614,375)	3.730%		(360,403)	4.672%		(55,317)	5.949%
Principal payments		(56,205)	5.248%		(38,744)	5.456%		(27,771)	5.845%
Foreign currency		(10,361)	4.013%		187	5.637%		-	0.000%
Ending balance	$	3,010,711	5.095%	$	2,311,586	5.140%	$	2,108,384	5.285%