COMMITMENTS AND CONTINGENCIES (Details) $ in Millions	9 Months Ended
	Sep. 30, 2019 USD ($) mo Property	Sep. 30, 2018
Commitment And Contingencies [Line Items]
Termination payment | $	$ 7.6
Number of consolidated properties located in Southern California | Property	14
Maximum proportion of total revenue provided by any single tenant (as a percent)	10.00%	10.00%
Total Revenues | Retail
Commitment And Contingencies [Line Items]
Proportion of total revenue provided by retail or office tenants (as a percent)	30.30%
Total Revenues | Office
Commitment And Contingencies [Line Items]
Proportion of total revenue provided by retail or office tenants (as a percent)	37.60%
Waikiki Beach Walk - Retail
Commitment And Contingencies [Line Items]
Property management fee (as a percent)	3.00%
Outrigger Hotels
Commitment And Contingencies [Line Items]
Property management fee (as a percent)	6.00%
Number of calendar months termination fee is based	2 months
Maximum proportion of hotel's fiscal year gross revenues paid for aggregate yearly management fee (as a percent)	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 | Maximum
Commitment And Contingencies [Line Items]
Property management fee (as a percent)	3.00%
Outrigger Hotels | Future Year Period One
Commitment And Contingencies [Line Items]
Years in hotel management agreement term	15 years
Outrigger Hotels | Future Year Period Two
Commitment And Contingencies [Line Items]
Years in hotel management agreement term	14 years
Outrigger Hotels | Future Year Period Three
Commitment And Contingencies [Line Items]
Years in hotel management agreement term	13 years
Outrigger Hotels | Future Year Period Four
Commitment And Contingencies [Line Items]
Years in hotel management agreement term	12 years
Wbw Hotel Lessee Llc
Commitment And Contingencies [Line Items]
Years of contract	20 years
Proportion of hotel occupancy gross revenue paid for program fee (as a percent)	4.00%
Wbw Hotel Lessee Llc | Future Time Period Prior to 12-31-2021
Commitment And Contingencies [Line Items]
Proportion of hotel occupancy gross revenue paid for franchise royalty fee (as a percent)	4.00%
Wbw Hotel Lessee Llc | Future Time Period After 12-31-2021
Commitment And Contingencies [Line Items]
Proportion of hotel occupancy gross revenue paid for franchise royalty fee (as a percent)	5.00%
Del Monte Center | Maximum
Commitment And Contingencies [Line Items]
Years, environmental remediation length	7 years
Del Monte Center | Minimum
Commitment And Contingencies [Line Items]
Years, environmental remediation length	5 years