Leases Leases - Cash Flow Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Leases - Cash Flow Additional Information [Abstract]
Operating Cash Flow from Operating Leases			$ 1,034	$ 1,100
Finance Lease, Interest Payment on Liability			0
Finance Lease, Interest Expense	$ 0	$ 1	0	5
Finance Lease, Principal Payments			$ 0	$ 650