Discontinued Operations (Results of Operations Associated with Discontinued Operations) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Discontinued Operations [Abstract]
Revenues	$ (1,342)	$ 509,037	$ 381,154	$ 2,752,557
Loss before income taxes	(8,366)	(27,163)	(8,029)	(61,396)
Income tax (benefit) expense	(22)	(1,813)	3,134	(8,757)
Loss from discontinued operations	$ (8,344)	$ (25,350)	$ (11,163)	$ (52,639)