Leases (Details) $ in Thousands	Dec. 31, 2017 USD ($)
Operating Leased Assets [Line Items]
Operating Leases, Future Minimum Payments Due, Next Twelve Months	$ 2,591
Operating Leases, Future Minimum Payments, Due in Two Years	2,099
Operating Leases, Future Minimum Payments, Due in Three Years	2,099
Operating Leases, Future Minimum Payments, Due in Four Years	1,792
Operating Leases, Future Minimum Payments, Due in Four and Five Years [Abstract]	1,793
Operating Leases, Future Minimum Payments, Due Thereafter	32,882
Operating Leases, Future Minimum Payments Due	$ 43,256