Basis of Presentation (Additional Cash Flow Information) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Non-cash operating items:
Equity in net (income) loss of affiliates	$ (25,087)	$ (64,363)	$ 51,758	$ (62,194)
Deferred taxes			4,203	19,380
Depreciation and amortization			20	21
Amortization of prior service credit and actuarial (gain) loss			853	206
Net non-cash operating items - continuing operations			56,834	(42,587)
Continuing Operations [Member]
Supplemental information:
Interest paid			306	7
Tax payments (refunds)			1,526	$ (127)
Discontinued Operations [Member]
Supplemental information:
Interest paid			$ 870