Other Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Other Liabilities [Abstract]
Retirement plan obligations	$ 21,982	$ 2,654
Due to dissenting shareholder	9,436	0
Non-current portion of deferred revenues	8,968	4,156
Other	10,128	2,229
Other liabilities	$ 50,514	$ 9,039