Leases Leases (Details) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2019 USD ($)	Sep. 30, 2019 USD ($)
Lessee, Lease, Description [Line Items]
Lease, Cost	$ 1,917	$ 5,050
Operating Lease, Weighted Average Remaining Lease Term	1 year 11 months	1 year 11 months
Operating Lease, Weighted Average Discount Rate, Percent	5.00%	5.00%
Lessee, Operating Lease, Liability, Payments, Remainder of Fiscal Year	$ 1,700	$ 1,700
Lessee, Operating Lease, Liability, Payments, Due Year Two	6,784	6,784
Lessee, Operating Lease, Liability, Payments, Due Year Three	2,181	2,181
Lessee, Operating Lease, Liability, Payments, Due Year Four	70	70
Lessee, Operating Lease, Liability, Payments, Due Year Five	40	40
Lessee, Operating Lease, Liability, Payments, Due after Year Five	348	348
Lessee, Operating Lease, Liability, Payments, Due	11,123	11,123
Lessee, Operating Lease, Liability, Undiscounted Excess Amount	(583)	(583)
Operating Lease, Liability	10,540	10,540
Operating Lease, Payments		3,013
Operating Lease, Payments, Use		30
Lease Operating Expense [Member]
Lessee, Lease, Description [Line Items]
Short-term Lease, Cost	357	2,022
Operating Lease, Cost	1,387	2,524
General and Administrative Expense [Member]
Lessee, Lease, Description [Line Items]
Operating Lease, Cost	173	504
Property, Plant and Equipment [Member]
Lessee, Lease, Description [Line Items]
Short-term Lease, Cost	2,208	8,376
Operating Lease, Cost	12	30
Lease, Cost	$ 2,220	$ 8,406