Investments Gross Realized Gains and Losses (Details) - Steel Excel Inc. - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Gain (Loss) on Investments [Line Items]
Gross realized gains	$ 3,410	$ 3,196	$ 4,600	$ 6,396
Gross realized losses	(418)	(1,120)	(793)	(1,329)
Realized gains, net	$ 2,992	$ 2,076	$ 3,807	$ 5,067