Leases Leases - Future Minimum Lease Payments (Detail) $ in Thousands	Dec. 31, 2019 USD ($)
Leases [Abstract]
Lessee, Operating Lease, Liability, Payments, Due	$ 2,397
Finance Lease, Liability, Payments, Due Next Twelve Months	120
Operating and Finance Leases, Liability, Payments, Due Next Twelve Months	2,517
Lessee, Operating Lease, Liability, Payments, Due Year Two	2,446
Finance Lease, Liability, Payments, Due Year Two	120
Operating and Finance, Liability, Payments, Due Year Two	2,566
Lessee, Operating Lease, Liability, Payments, Due Year Three	2,483
Finance Lease, Liability, Payments, Due Year Three	120
Operating and Finance, Liability, Payments, Due Year Three	2,603
Lessee, Operating Lease, Liability, Payments, Due Year Four	2,572
Finance Lease, Liability, Payments, Due Year Four	120
Operating and Finance, Liability, Payments, Due Year Four	2,692
Lessee, Operating Lease, Liability, Payments, Due Year Five	2,868
Finance Lease, Liability, Payments, Due Year Five	4,060
Operating and Finance, Liability, Payments, Due Year Five	6,928
Lessee, Operating Lease, Liability, Payments, Due after Year Five	32,277
Finance Lease, Liability, Payments, Due after Year Five	0
Operating and Finance, Liability, Payments, Due After Year Five	32,277
Lessee, Operating Lease, Liability, Payments, Due	45,043
Finance Lease, Liability, Payment, Due	4,540
Operating and Finance, Liability, Payments, Due	49,583
Lessee, Operating Lease, Liability, Undiscounted Excess Amount	20,821
Finance Lease, Liability, Undiscounted Excess Amount	459
Operating and Finance, Liability, Undiscounted Excess Amount	21,280
Operating Lease, Liability	24,222
Finance Lease, Liability	4,081
Operating and Finance, Liability	$ 28,303