Segment Information - Reconciliation of Operating Profit (Loss) from Segments to Consolidated (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Reconciliation of income from continuing operations from segments to consolidated [Abstract]
Total consolidated operating income (loss)	$ (3,929)	$ 15,089	$ 10,337	$ 52,365
Interest expense	(8,845)	(1,808)	(16,369)	(5,663)
Non-operating income, net	1,527	180	3,147	1,253
Income (loss) before income taxes	$ (11,247)	$ 13,461	$ (2,885)	$ 47,955