Leases Schedule of Operating Lease Payments Due (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Jan. 01, 2019	Dec. 31, 2018
Schedule of Operating Lease Payments Due [Abstract]
Lessee, Operating Lease, Liability, Payments, Remainder of Fiscal Year	$ 3,058
Lessee, Operating Lease, Liability, Payments, Due Year One	5,425
Lessee, Operating Lease, Liability, Payments, Due Year Two	4,644
Lessee, Operating Lease, Liability, Payments, Due Year Three	3,986
Lessee, Operating Lease, Liability, Payments, Due Year Four	2,735
Lessee, Operating Lease, Liability, Payments, Due Year Five	1,480
Lessee, Operating Lease, Liability, Payments, Due after Year Five	274
Lessee, Operating Lease, Liability, Payments, Due	21,602
Lessee, Operating Lease, Liability, Undiscounted Excess Amount	(2,205)
Operating lease right-of-use assets	$ 19,397	$ 20,900	$ 0