Discontinued Operations and Held For Sale (Cash Flow Activities) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Net cash used in discontinued investing activities:
Purchases of property, plant and equipment	$ (138,856)	$ (81,774)	$ (80,425)
AMS
Cash flows from discontinued operating activities:
Net loss	(123,164)	(1,194,926)	(785,469)
Depreciation and amortization	0	11,555	70,275
Net cash used in discontinued investing activities:
Purchases of property, plant and equipment	$ (138)	$ (2,709)	$ (4,423)