Debt (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Apr. 01, 2019	Dec. 31, 2011	Jan. 19, 2011
Summary of total secured notes payable outstanding
Stated Interest Rate		3.94%
Stated Maturity Date	Mar. 01, 2013
Gross Secured Notes Payable	$ 977,793		$ 959,405
Unamortized fair value adjustment	(13,725)		(15,926)
Total Secured Notes Payable	964,068		943,479	342,000
Alamo Quarry Market [Member]
Summary of total secured notes payable outstanding
Secured notes payable, Principal Balance	94,482		96,027
Stated Interest Rate	5.67%
Stated Maturity Date	Jan. 08, 2014
160 King Street [Member]
Summary of total secured notes payable outstanding
Secured notes payable, Principal Balance	30,214		31,412
Stated Interest Rate	5.68%
Stated Maturity Date	May 01, 2014
Waikele Center [Member]
Summary of total secured notes payable outstanding
Secured notes payable, Principal Balance	140,700		140,700
Stated Interest Rate	5.15%
Stated Maturity Date	Nov. 01, 2014
The Shops at Kalakaua [Member]
Summary of total secured notes payable outstanding
Secured notes payable, Principal Balance	19,000		19,000
Stated Interest Rate	5.45%
Stated Maturity Date	May 01, 2015
The Land Mark at One Market [Member]
Summary of total secured notes payable outstanding
Secured notes payable, Principal Balance	133,000		133,000
Stated Interest Rate	5.61%
Stated Maturity Date	Jul. 05, 2015
Del Monte Center [Member]
Summary of total secured notes payable outstanding
Secured notes payable, Principal Balance	82,300		82,300
Stated Interest Rate	4.93%
Stated Maturity Date	Jul. 08, 2015
First & Main [Member]
Summary of total secured notes payable outstanding
Secured notes payable, Principal Balance	84,500		84,500
Stated Interest Rate	3.97%
Stated Maturity Date	Jul. 01, 2016
Imperial Beach Gardens [Member]
Summary of total secured notes payable outstanding
Secured notes payable, Principal Balance	20,000		20,000
Stated Interest Rate	6.16%
Stated Maturity Date	Sep. 01, 2016
Mariner's Point [Member]
Summary of total secured notes payable outstanding
Secured notes payable, Principal Balance	7,700		7,700
Stated Interest Rate	6.09%
Stated Maturity Date	Sep. 01, 2016
South Bay Marketplace [Member]
Summary of total secured notes payable outstanding
Secured notes payable, Principal Balance	23,000		23,000
Stated Interest Rate	5.48%
Stated Maturity Date	Feb. 10, 2017
Waikiki Beach Walk - Retail [Member]
Summary of total secured notes payable outstanding
Secured notes payable, Principal Balance	130,310		130,310
Stated Interest Rate	5.39%
Stated Maturity Date	Jul. 01, 2017
Solana Beach Corporate Centre III-IV[Member]
Summary of total secured notes payable outstanding
Secured notes payable, Principal Balance	37,302		37,330
Stated Interest Rate	6.39%
Stated Maturity Date	Aug. 01, 2017
Loma Palisades [Member]
Summary of total secured notes payable outstanding
Secured notes payable, Principal Balance	73,744		73,744
Stated Interest Rate	6.09%
Stated Maturity Date	Jul. 01, 2018
One Beach Street [Member]
Summary of total secured notes payable outstanding
Secured notes payable, Principal Balance	21,900
Stated Interest Rate	3.94%
Stated Maturity Date	Apr. 01, 2019
Torrey Reserve - North Court [Member]
Summary of total secured notes payable outstanding
Secured notes payable, Principal Balance	21,727		21,921
Stated Interest Rate	7.22%
Stated Maturity Date	Jun. 01, 2019
Torrey Reserve-VCI, VCII, VCIII [Member]
Summary of total secured notes payable outstanding
Secured notes payable, Principal Balance	7,316		7,380
Stated Interest Rate	6.36%
Stated Maturity Date	Jun. 01, 2020
Solana Beach Corporate Centre I-II [Member]
Summary of total secured notes payable outstanding
Secured notes payable, Principal Balance	11,676		11,788
Stated Interest Rate	5.91%
Stated Maturity Date	Jun. 01, 2020
Solana Beach Towne Centre [Member]
Summary of total secured notes payable outstanding
Secured notes payable, Principal Balance	$ 38,922		$ 39,293
Stated Interest Rate	5.91%
Stated Maturity Date	Jun. 01, 2020