Discontinued Operations and Held For Sale (Operating Results of Discontinued Operations) (Details) - AMS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue	$ 387	$ 43,705	$ 30,101	$ 282,310
Litigation related and other contingencies, net	17,705	0	20,155	273,752
Asset impairment charges	0	2,200	21,328	224,953
Gain on sale of business	0	13,550	0	13,550
Loss from discontinued operations before income taxes	(27,309)	(18,775)	(118,633)	(506,275)
Income tax expense	0	228,007	0	126,349
Discontinued operations, net of tax	$ (27,309)	$ (246,782)	$ (118,633)	$ (632,624)