Disclosure about Fair Value of Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2013

Disclosure about Fair Value of Financial Instruments (Tables) [Abstract]

Carrying amounts and estimated fair values of financial instruments

		March 31, 2013				December 31, 2012
		Carrying		Fair		Carrying		Fair
		Amount		Value		Amount		Value
Financial assets:
	Mortgage loans receivable	$	88,861	$	89,693	$	87,955	$	88,975
	Other real estate loans receivable		188,015		199,985		807,710		820,195
	Available-for-sale equity investments		1,555		1,555		1,384		1,384
	Cash and cash equivalents		269,842		269,842		1,033,764		1,033,764
	Foreign currency forward contracts		63,249		63,249		0		0
Financial liabilities:
	Borrowings under unsecured line of credit arrangements	$	710,000	$	710,000	$	0	$	0
	Senior unsecured notes		6,610,873		7,363,318		6,114,151		6,793,424
	Secured debt		2,452,495		2,643,513		2,336,196		2,515,145
	Interest rate swap agreements		200		200		264		264
	Foreign currency forward contracts		0		0		7,247		7,247

The Market approach utilized to measure fair value of financial assets and liabilities on recurring basis

	Fair Value Measurements as of March 31, 2013
	Total		Level 1		Level 2		Level 3
Available-for-sale equity investments(1)	$	1,555	$	1,555	$	0	$	0
Interest rate swap agreements(2)		(200)		0		(200)		0
Foreign currency forward contracts(2)		63,249		0		63,249		0
Totals	$	64,604	$	1,555	$	63,049	$	0
(1) Unrealized gains or losses on equity investments are recorded in accumulated other comprehensive income (loss) at each measurement date.
(2) Please see Note 11 for additional information.