SEGMENT INFORMATION (Details 1) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
ASSETS	$ 1,039,856	$ 1,801,752
Total Segment [Member]
ASSETS	480,170	1,240,932
US Operations [Member]
ASSETS	474,884	1,236,288
International Operations [Member]
ASSETS	5,286	4,644
Bonds Eliminated in Consolidation [Member]
ASSETS	(92,429)	(114,529)
Net unrealized mark to market gains not recorded in consolidation [Member]
ASSETS	(32,336)	(10,585)
Other adjustments [Member]
ASSETS	(8,214)	(7,628)
Consolidated Funds and Ventures [Member]
ASSETS	$ 692,665	$ 693,562