Leases Supplemental Cashflow Information (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Supplemental Cash Flow Information [Abstract]
Operating Lease, Payments, Use	$ 2,299	$ 1,862
Lessee, Operating Lease Payment on Extension Option	$ 1,179	$ 2,961