SEGMENT DISCLOSURE - Assets and Capital Expenditures and Loan Originations (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Segment disclosure
Total assets	$ 2,056,061		$ 2,092,060
Lending assets	43,690		22,062
Total capital expenditures	25,183	$ 21,703
Loan originations included in assets held for sale	78,809	49,319
Total capital expenditures and loan originations	103,992	71,022
Reportable segments | Office
Segment disclosure
Total assets	1,556,263		1,520,339
Total capital expenditures	24,115	19,216
Reportable segments | Hotel
Segment disclosure
Total assets	114,032		176,735
Total capital expenditures	619	1,001
Reportable segments | Multi-family
Segment disclosure
Total assets	169,419		171,429
Total capital expenditures	449	$ 1,486
Reportable segments | Lending division
Segment disclosure
Lending assets	137,219		128,992
Non-segment
Segment disclosure
Total assets	$ 79,128		$ 94,565