Income Taxes (Details 4) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Tax Disclosure [Abstract]
Income tax expense (benefit)	$ (31,914)	$ 13,315	$ 15,176
Income tax expense, discontinued operations	0	0	(7,822)
Income tax expense (benefit), stockholders' equity	2,021	(9,527)	17,373
Income tax expense, allocation	$ (29,893)	$ 3,788	$ 24,727