Commitments and Contingencies (Future Minimum Lease Payments) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Jan. 01, 2018
Commitments and Contingencies Disclosure [Abstract]
Lessee, Operating Lease, Liability, Payments, Remainder of Fiscal Year	$ 10,603
Lessee, Operating Lease, Liability, Payments, Due Year Two	9,859
Finance Lease, Liability, Payments, Remainder of Fiscal Year	130
Finance Lease, Liability, Payments, Due Year Two	54
Lessee, Operating Lease, Liability, Payments, Due Year Three	8,539
Finance Lease, Liability, Payments, Due Year Three	0
Lessee, Operating Lease, Liability, Payments, Due Year Four	8,652
Finance Lease, Liability, Payments, Due Year Four	0
Lessee, Operating Lease, Liability, Payments, Due Year Five	8,866
Finance Lease, Liability, Payments, Due Year Five	0
Lessee, Operating Lease, Liability, Payments, Due after Year Five	15,583
Finance Lease, Liability, Payments, Due after Year Five	0
Lessee, Operating Lease, Liability, Payments, Due	62,102
Finance Lease, Liability, Payments, Due	184
Lessee, Operating Lease, Liability, Undiscounted Excess Amount	10,424
Finance Lease, Liability, Undiscounted Excess Amount	6
Operating Lease, Liability	51,678
Finance Lease, Liability	178		$ 3,500
Operating Lease, Liability, Current	7,663	$ 0
Finance Lease, Liability, Current	124
Operating Lease, Liability, Noncurrent	44,015	$ 0
Finance Lease, Liability, Noncurrent	$ 54