Other Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Other Liabilities [Abstract]
Accounts payable	$ 24	$ 5,207
Accrued payroll and other compensation	4,063	2,559
Other accrued expenses	27,655	2,796
Total other liabilities	$ 31,742	$ 10,562