Other Assets (Details 1) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Spare parts inventory	$ 2,922	$ 2,922
Deposits	2,280	2,370
Other	6,470	6,527
Total	$ 11,672	$ 11,819