SEGMENT DISCLOSURE - Assets and Capital Expenditures and Loan Originations (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Segment disclosure
Total assets	$ 2,106,209		$ 2,092,060
Lending assets held for sale	150,927		128,992
Total capital expenditures	6,934	$ 4,751
Loan originations included in assets held for sale	33,777	27,403
Total capital expenditures and loan originations	40,711	32,154
Reportable segments
Segment disclosure
Lending assets held for sale	150,927		128,992
Reportable segments | Office
Segment disclosure
Total assets	1,534,059		1,520,339
Total capital expenditures	6,653	4,164
Reportable segments | Hotel
Segment disclosure
Total assets	163,072		176,735
Total capital expenditures	150	457
Reportable segments | Multi-family
Segment disclosure
Total assets	170,213		171,429
Total capital expenditures	131	$ 130
Non-segment
Segment disclosure
Total assets	$ 87,938		$ 94,565