Commitments And Contingencies Commitment And Contingencies (Capital Lease Summary) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Commitments and Contingencies [Abstract]
Capital Leased Assets, Gross	$ 1,967	$ 870
Capital Leases, Lessee Balance Sheet, Assets by Major Class, Accumulated Depreciation	(1,915)	(617)
Capital Leases, Future Minimum Payments Due, Next Twelve Months	53
Capital Leases, Balance Sheet, Assets by Major Class, Net	52	$ 253
Capital Leases, Future Minimum Payments Due in Two Years	11
Capital Leases, Future Minimum Payments Due in Three Years	0
Capital Leases, Future Minimum Payments Due in Four Years	0
Capital Leases, Future Minimum Payments Due in Five Years	0
Capital Leases, Future Minimum Payments Due Thereafter	0
Capital Leases, Future Minimum Payments Due	$ 64