Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2012

Fair Value Disclosures [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

				Fair Value Measurements at June 30, 2012 Using:
				Quoted Prices in
				Active Markets for		Significant Other		Unobservable
				Identical Assets		Observable Inputs		Inputs
Description		Total		(Level 1)		(Level 2)		(Level 3)
Assets:
Derivative assets		$	14,208	$	-	$	14,208	$	-
Money market funds			10,295		10,295		-		-
Other derivative assets			1,419		-		-		1,419
	Total	$	25,922	$	10,295	$	14,208	$	1,419
Liabilities:
Derivative liabilities		$	(14,765)	$	-	$	(14,765)	$	-
	Total	$	(14,765)	$	-	$	(14,765)	$	-

				Fair Value Measurements at December 31, 2011 Using:
				Quoted Prices in
				Active Markets for		Significant Other		Unobservable
				Identical Assets		Observable Inputs		Inputs
Description		Total		(Level 1)		(Level 2)		(Level 3)
Assets:
Derivative assets		$	10,945	$	-	$	10,945	$	-
Money market funds			5,997		5,997		-		-
Other derivative assets			1,419		-		-		1,419
	Total	$	18,361	$	5,997	$	10,945	$	1,419
Liabilities:
Derivative liabilities		$	(8,682)	$	-	$	(8,682)	$	-
	Total	$	(8,682)	$	-	$	(8,682)	$	-

Schedule Of Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis [Table Text Block]

			Fair Value Measurements Using Significant
			Unobservable Inputs (Level 3 Only)
			Other Derivative Assets
			Three Months Ended June 30,				Six Months Ended June 30,
			2012		2011		2012		2011
Beginning balance			$	1,419	$	-	$	1,419	$	-
	Total gains or losses (realized and unrealized):
		Included in earnings		-		66		-		66
	Purchases			-		1,617		-		1,617
Ending balance			$	1,419	$	1,683	$	1,419	$	1,683
The amount of total gains or losses for the period included in earnings attributable to the change in unrealized gains or losses relating to assets still held at the reporting date			$	-	$	66	$	-	$	66

Schedule Of Other Financial Instruments In Carrying Values And Fair Values [Table Text Block]

		June 30, 2012				December 31, 2011
	Level	Carrying Value		Fair Value		Carrying Value		Fair Value
Debt (a)	3	$	1,276,174	$	1,309,329	$	1,154,254	$	1,184,309
Notes receivable (a)	3		70,000		75,134		70,000		71,297
CMBS (b)	3		2,028		3,392		3,777		6,701
Other securities (c)	3		8,301		10,800		1,230		1,230

Schedule Of Fair Value Impairment Charges Using Unobservable Inputs Nonrecurring Basis [Table Text Block]

	Three Months Ended June 30, 2012				Three Months Ended June 30, 2011
	Total Fair Value		Total Impairment		Total Fair Value		Total Impairment
Impairment Charges From Continuing Operations	Measurements		Charges		Measurements		Charges
CMBS	$	-	$	-	$	-	$	-

	Six Months Ended June 30, 2012				Six Months Ended June 30, 2011
	Total Fair Value		Total Impairment		Total Fair Value		Total Impairment
Impairment Charges From Continuing Operations	Measurements		Charges		Measurements		Charges
CMBS	$	-	$	2,019	$	-	$	-