Leases Leases (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Lessee, Lease, Description [Line Items]
Lease, Cost	$ 1,693	$ 1,917	$ 5,374	$ 5,050
Operating Lease, Weighted Average Remaining Lease Term	1 year 8 months 12 days		1 year 8 months 12 days
Operating Lease, Weighted Average Discount Rate, Percent	4.60%		4.60%
Lessee, Operating Lease, Liability, Payments, Remainder of Fiscal Year	$ 1,772		$ 1,772
Lessee, Operating Lease, Liability, Payments, Due Year Two	3,636		3,636
Lessee, Operating Lease, Liability, Payments, Due Year Three	559		559
Lessee, Operating Lease, Liability, Payments, Due Year Four	169		169
Lessee, Operating Lease, Liability, Payments, Due Year Five	40		40
Lessee, Operating Lease, Liability, Payments, Due after Year Five	310		310
Lessee, Operating Lease, Liability, Payments, Due	6,486		6,486
Lessee, Operating Lease, Liability, Undiscounted Excess Amount	(287)		(287)
Operating Lease, Liability	6,199		6,199
Operating Lease, Payments			4,793	3,013
Operating Lease, Payments, Use			10	30
Lease Operating Expense [Member]
Lessee, Lease, Description [Line Items]
Short-term Lease, Cost	124	357	575	2,022
Operating Lease, Cost	1,397	1,387	4,267	2,524
General and Administrative Expense [Member]
Lessee, Lease, Description [Line Items]
Operating Lease, Cost	172	173	532	504
Property, Plant and Equipment [Member]
Lessee, Lease, Description [Line Items]
Short-term Lease, Cost	0	2,208	2,302	8,376
Operating Lease, Cost	0	12	10	30
Lease, Cost	$ 0	$ 2,220	$ 2,312	$ 8,406