Consolidated Statements of Changes in Net Assets Liquidation Basis Unaudited - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Net assets in liquidation, beginning of year	$ 264,441
Changes in net assets in liquidation
Change in liquidation value of investments in real estate	(7,114)	$ (1,519)
Change in liquidation value of loans receivable	(303)		$ 100
Change in liquidation value of equity investments	(30,910)	(11,049)
Remeasurement of assets and liabilities	6,683	2,581
Liquidating distributions to Unitholders/Common shareholders	(220,372)	(54,727)
Net assets in liquidation, end of year	12,425	264,441
Liquidation Value [Member]
Net assets in liquidation, beginning of year	264,441	327,927
Changes in net assets in liquidation
Change in liquidation value of investments in real estate	(7,114)	(1,519)
Change in liquidation value of loans receivable	(303)
Change in liquidation value of equity investments	(30,910)	(11,049)
Remeasurement of assets and liabilities	6,683	3,263
Remeasurement of non-controlling interests		546
Net decrease in liquidation value	(31,644)	(8,759)
Liquidating distributions to Unitholders/Common shareholders	(220,372)	(54,727)
Changes in net assets in liquidation	(252,016)	(63,486)
Net assets in liquidation, end of year	$ 12,425	$ 264,441	$ 327,927