CONSOLIDATED STATEMENTS OF EQUITY - USD ($) shares in Thousands, $ in Thousands	Common Stock	AOCI	Parent [Member]	Noncontrolling Interest in Consolidated Funds and Ventures (“CFVs”)	Total
Balance at Dec. 31, 2017	$ 96,420	$ 41,153	$ 137,573	$ 89,529	$ 227,102
Balance (in shares) at Dec. 31, 2017	5,617
Net income	$ 18,340		18,340		18,340
Other comprehensive (loss) income		9,160	9,160		9,160
Purchases of shares in a subsidiary (including price adjustments on prior purchases)	(73)		(73)		(73)
Common shares (restricted and deferred) issued under employee and non-employee director share plans	$ 82		82		82
Common shares (restricted and deferred) issued under employee and non-employee director share plans (in shares)	3
Net change due to deconsolidation				$ (89,529)	(89,529)
Cumulative change due to change in accounting principle	$ 9,206		9,206		9,206
Common shares issued	$ 4,125		4,125		4,125
Common shares issued (in shares)	125
Balance at Mar. 31, 2018	$ 128,100	50,313	$ 178,413		178,413
Balance (in shares) at Mar. 31, 2018	5,745
Balance at Dec. 31, 2018	$ 175,213	37,697			212,910
Balance (in shares) at Dec. 31, 2018	5,882
Net income	$ 2,882				2,882
Other comprehensive (loss) income		(3,140)			(3,140)
Common shares (restricted and deferred) issued under employee and non-employee director share plans	$ 82				82
Common shares (restricted and deferred) issued under employee and non-employee director share plans (in shares)	2
Cumulative change due to change in accounting principle	$ (267)				(267)
Balance at Mar. 31, 2019	$ 177,910	$ 34,557			$ 212,467
Balance (in shares) at Mar. 31, 2019	5,884