Agreements and Transactions with Related Parties (Tables)

12 Months Ended

Dec. 31, 2011

Related Party Transactions [Abstract]

Schedule Of Revenue Earned Cash Received Table [Text Block]

	Years Ended December 31,
	2011		2010		2009
Asset management revenue	$	66,808	$	76,246	$	76,621
Reimbursed costs from affiliates		64,829		60,023		47,534
Incentive, termination and subordinated disposition revenue		52,515		-		-
Structuring revenue		46,831		44,525		23,273
Wholesaling revenue		11,664		11,096		7,691
Distributions of available cash		15,535		4,468		2,160
Deferred revenue earned		5,662		-		-
	$	263,844	$	196,358	$	157,279

Schedule Of Unpaid Deferred Acquisition Fees And Interest Earned [Table Text Block]

			At December 31, 2011		At December 31, 2010
Unpaid deferred acquisition fees			$	29,410	$	31,419
	Years Ended December 31,
	2011		2010		2009
Interest earned on unpaid deferred acquisition fees	$	1,332	$	1,136	$	1,534

Schedule Of Income From Noncontrolling Interest Partners [Table Text Block]

	Years Ended December 31,
	2011		2010		2009
Income from noncontrolling interest partners	$	2,542	$	2,372	$	2,374

Deferred Rent Due To Affiliates

	December 31,
	2011		2010
Deferred rent due to affiliates	$	798	$	854