Commitments and Contingencies (Details Textual) (USD $)	6 Months Ended
	Jun. 30, 2012 Property	Jun. 30, 2011
Commitments and Contingencies (Additional Textual) [Abstract]
Stated monthly lease rate for February 2017	$ 61,690,000
Number of consolidated properties located in Southern California	12
Percentage of total revenue provided by retail tenants	38.40%
Maximum percentage of total revenue provided by any single tenant	10.00%	10.00%
Termination payment	$ 5,500,000
Percentage, partner's common units	50.00%
The Land Mark at One Market [Member]
Commitments and Contingencies (Textual) [Abstract]
Number of lease extension options	2
Years, lease extension options length	5 years
Quicksilver [Member]
Commitments and Contingencies (Textual) [Abstract]
Percent annual lease amount increase	3.40%
Waikiki Beach Walk - Retail [Member]
Commitments and Contingencies (Textual) [Abstract]
Property management fee, percent	3.00%
Outrigger Hotels [Member]
Commitments and Contingencies (Textual) [Abstract]
Property management fee, percent	6.00%
Number of calendar months termination fee is based	2 months
Maximum percentage of hotel's fiscal year gross revenues paid for aggregate yearly management fee	3.50%
Previous months of management fees	12 months
Hotel management agreement default penalty factor of previous twelve months of management fees in first 11 years of term	8
Years in hotel management agreement term	11 years
Hotel management agreement default penalty factor of previous twelve months of management fees in twelfth year of term	4
Hotel management agreement default penalty factor of previous twelve months of management fees in thirteenth year of term	3
Hotel management agreement default penalty factor of previous twelve months of management fees in fourteenth year of term	2
Hotel management agreement default penalty factor of previous twelve months of management fees in fifteenth year of term	1
Outrigger Hotels [Member] | Maximum [Member]
Commitments and Contingencies (Textual) [Abstract]
Property management fee, percent	3.00%
Outrigger Hotels [Member] | Future Year Period One [Member]
Commitments and Contingencies (Textual) [Abstract]
Years in hotel management agreement term		15 years
Outrigger Hotels [Member] | Future Year Period Two [Member]
Commitments and Contingencies (Textual) [Abstract]
Years in hotel management agreement term		14 years
Outrigger Hotels [Member] | Future Year Period Three [Member]
Commitments and Contingencies (Textual) [Abstract]
Years in hotel management agreement term		13 years
Outrigger Hotels [Member] | Future Year Period Four [Member]
Commitments and Contingencies (Textual) [Abstract]
Years in hotel management agreement term	12 years
WBW Hotel Lessee LLC [Member]
Commitments and Contingencies (Textual) [Abstract]
Years of contract	20 years
Percentage of hotel occupancy gross revenue paid for program fee	4.00%
WBW Hotel Lessee LLC [Member] | Future Time Period Prior to 12-31-2021 [Member]
Commitments and Contingencies (Textual) [Abstract]
Percentage of hotel occupancy gross revenue paid for franchise royalty fee	4.00%
WBW Hotel Lessee LLC [Member] | Future Time Period After 12-31-2021 [Member]
Commitments and Contingencies (Textual) [Abstract]
Percentage of hotel occupancy gross revenue paid for franchise royalty fee	5.00%
Lloyd District Portfolio [Member]
Commitments and Contingencies (Textual) [Abstract]
Property management fee, percent	3.50%
Years, initial contract term	2 years
Contract renewal options	3
Years, contract renewal option length	1 year
Del Monte Center [Member]
Commitments and Contingencies (Textual) [Abstract]
Years, environmental remediation length	2 years