SEGMENT DISCLOSURE - Assets and Capital Expenditures and Loan Originations (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Segment disclosure
Total assets	$ 2,151,097		$ 2,092,060
Lending assets held for sale	181,028		128,992
Total capital expenditures	19,416	$ 15,820
Loan originations included in assets held for sale	49,976	41,121
Total capital expenditures and loan originations	69,392	56,941
Reportable segments
Segment disclosure
Lending assets held for sale	138,409		128,992
Reportable segments | Office
Segment disclosure
Total assets	1,553,454		1,520,339
Total capital expenditures	18,839	14,200
Reportable segments | Hotel
Segment disclosure
Total assets	154,162		176,735
Total capital expenditures	336	738
Reportable segments | Multi-family
Segment disclosure
Total assets	168,426		171,429
Total capital expenditures	241	$ 882
Non-segment
Segment disclosure
Total assets	$ 136,646		$ 94,565