Leases Leases - Future Minimum Lease Payments (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Jan. 01, 2019
Lessee, Lease, Description [Line Items]
Finance Lease, Liability, Payments, Due Next Twelve Months	$ 996
Finance Lease, Liability, Payments, Due Year Two	997
Finance Lease, Liability, Payments, Due Year Three	996
Finance Lease, Liability, Payments, Due Year Four	997
Finance Lease, Liability, Payments, Due Year Five	997
Finance Lease, Liability, Payments, Due after Year Five	2,936
Finance Lease, Liability, Payments, Due	7,919
Imputed interest	7,857
Finance Lease, Liability, Undiscounted Excess Amount	791
Operating lease liabilities	85,377	$ 85,516
Finance Lease, Liability	7,128
Operating Lease Liabilities, Payments Due [Abstract]
Lessee, Operating Lease, Liability, Payments, Due Next Twelve Months	30,670
Lessee, Operating Lease, Liability, Payments, Due Year Two	20,865
Lessee, Operating Lease, Liability, Payments, Due Year Three	16,640
Lessee, Operating Lease, Liability, Payments, Due Year Four	13,082
Lessee, Operating Lease, Liability, Payments, Due Year Five	8,016
Lessee, Operating Lease, Liability, Payments, Due after Year Five	9,911
Lessee, Operating Lease, Liability, Payments, Due	99,184
Operating Leases [Member]
Lessee, Lease, Description [Line Items]
Short-term Lease Commitment, Amount	5,950
Finance Leases [Member]
Lessee, Lease, Description [Line Items]
Short-term Lease Commitment, Amount	$ 0