Acquired Intangible Assets and Liabilities (Tables)

6 Months Ended

Jun. 30, 2011

Summary of Acquired Intangible Assets

	Balance as of
(Amounts in thousands)	June 30, 2011			December 31, 2010
Acquired in place lease value:
Gross amount	$	518,357		$	515,958
Accumulated amortization		(290,853	)		(261,978	)
Net	$	227,504		$	253,980
Acquired above-market lease value:
Gross amount	$	88,126		$	87,622
Accumulated amortization		(53,620	)		(47,083	)
Net	$	34,506		$	40,539
Acquired below-market lease value:
Gross amount	$	191,940		$	189,990
Accumulated amortization		(107,422	)		(96,740	)
Net	$	84,518		$	93,250

Schedule of Estimated Annual Amortization of Leases

(Amounts in thousands)
2012	$	6,546
2013		7,115
2014		5,754
2015		5,088
2016		4,208

Acquired in Place Lease Value [Member]

Schedule of Estimated Annual Amortization of Leases

(Amounts in thousands)
2012	$	42,321
2013		37,960
2014		33,062
2015		24,816
2016		16,371