Related Party Transactions (Tables)

12 Months Ended

Dec. 31, 2012

Related Party Transactions [Abstract]

Schedule of Fees Earned from Related Parties

The following table summarizes the fees earned from these companies, prior to elimination, for the years ended December 31, 2012, 2011 and 2010, respectively (in thousands): 

	2012		2011		2010
Management fees	$	11,018	$	10,090	$	7,620
Leasing fees	3,411		4,417		2,700
Construction and development fees	4,739		6,711		10,257