Senior Unsecured Notes and Secured Debt (Tables)

3 Months Ended

Mar. 31, 2018

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

Principal payments due on debt obligations

	Senior		Secured
	Unsecured Notes(1,2)		Debt (1,3)		Totals
2018	$	-	$	350,257	$	350,257
2019		600,000		483,773		1,083,773
2020(4)		690,220		138,069		828,289
2021(5,6)		1,143,934		228,870		1,372,804
2022		600,000		224,905		824,905
Thereafter(7,8)		4,972,835		1,072,521		6,045,356
Totals	$	8,006,989	$	2,498,395	$	10,505,384
(1) Amounts represent principal amounts due and do not include unamortized premiums/discounts, debt issuance costs, or other fair value adjustments as reflected on the balance sheet.
(2) Annual interest rates range from 2.4% to 6.5%.
(3) Annual interest rates range from 1.69% to 7.93%. Carrying value of the properties securing the debt totaled $5,272,358,000 at March 31, 2018.
(4) In November 2015, one of our wholly-owned subsidiaries issued and we guaranteed $300,000,000 of Canadian-denominated 3.35% senior unsecured notes due 2020 (approximately $232,720,000 based on the Canadian/U.S. Dollar exchange rate on March 31, 2018).
(5) On May 13, 2016, we refinanced the funding on a $250,000,000 Canadian-denominated unsecured term credit facility (approximately $193,934,000 based on the Canadian/U.S. Dollar exchange rate on March 31, 2018). The loan matures on May 13, 2021 and bears interest at the Canadian Dealer Offered Rate plus 95 basis points (2.55% at March 31, 2018).
(6) On May 13, 2016, we refinanced the funding on a $500,000,000 unsecured term credit facility. The loan matures on May 13, 2021 and bears interest at LIBOR plus 95 basis points (2.7% at March 31, 2018).
(7) On November 20, 2013, we completed the sale of £550,000,000 (approximately $771,485,000 based on the Sterling/U.S. Dollar exchange rate in effect on March 31, 2018) of 4.8% senior unsecured notes due 2028.
(8) On November 25, 2014, we completed the sale of £500,000,000 (approximately $701,350,000 based on the Sterling/U.S. Dollar exchange rate in effect on March 31, 2018) of 4.5% senior unsecured notes due 2034.

Summary of senior unsecured note activity

	Three Months Ended
	March 31, 2018			March 31, 2017
			Weighted Avg.			Weighted Avg.
	Amount		Interest Rate	Amount		Interest Rate
Beginning balance	$	8,417,447	4.306%	$	8,260,038	4.245%
Debt extinguished		(450,000)	2.250%		-	0.000%
Foreign currency		39,542	5.216%		24,229	4.391%
Ending balance	$	8,006,989	4.451%	$	8,284,267	4.262%

Secured debt principal activity

	Three Months Ended
		March 31, 2018		March 31, 2017
			Weighted Avg.			Weighted Avg.
	Amount		Interest Rate	Amount		Interest Rate
Beginning balance	$	2,618,408	3.761%	$	3,465,066	4.094%
Debt issued		20,326	3.774%		12,536	2.340%
Debt assumed		85,192	4.395%		-	0.000%
Debt extinguished		(183,408)	5.809%		(806,189)	5.580%
Foreign currency		(27,876)	3.326%		10,313	3.262%
Principal payments		(14,247)	3.865%		(16,249)	4.469%
Ending balance	$	2,498,395	3.696%	$	2,665,477	3.744%