Goodwill And Intangible Assets - Furture Amortization (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Cost of Goods and Services Sold, Depreciation and Amortization [Abstract]
Impairment and amortization of intangible assets	$ 2,812	$ 7,320	$ 2,336	$ 2,324	$ 2,325	$ 2,360	$ 2,434	$ 2,434	$ 14,792	$ 9,553	$ 4,767
Amortization expense, operating					$ 11	$ 31	$ 32	$ 127	0	$ 201	$ 508
Cost of sales
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2017	10,267								10,267
2018	5,905								5,905
2019	4,960								4,960
2020	3,258								3,258
2021 and thereafter	1,506								1,506
Total intangible assets	$ 25,896								$ 25,896