REAL ESTATE Pacific Ridge & Gateway Marketplace Financial Results (Details) - USD ($) $ in Thousands	3 Months Ended			5 Months Ended	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2017	Sep. 30, 2016
Real Estate [Line Items]
Revenues		$ 82,339	$ 75,976	$ 7,690	$ 233,237	$ 218,526
Operating Expenses		55,862	50,492	12,312	163,383	145,695
Operating Income (Loss)		26,477	25,484	(4,622)	69,854	72,831
Net income		$ 12,505	$ 11,858	(4,622)	$ 30,401	$ 33,229
Pacific Ridge
Real Estate [Line Items]
Revenues				6,884
Operating Expenses				11,813
Operating Income (Loss)				(4,929)
Net income				$ (4,929)
Gateway Marketplace
Real Estate [Line Items]
Revenues	$ 806
Operating Expenses	499
Operating Income (Loss)	307
Net income	$ 307