Supplemental Balance Sheet Information Related to Leases (Detail) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Operating Leases
Right of use assets-operating leases	$ 418,719	$ 433,962
Operating lease liabilities	74,649	71,600
Operating lease liabilities noncurrent	376,239	382,559
Total operating lease liabilities	450,888	454,159
Finance Leases
Accumulated depreciation	(6,071,058)	(5,652,518)
Property, plant and equipment, net, Total	6,572,225	6,124,529
Current maturities of long-term debt	$ 5,282	$ 3,050
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Current maturities of long-term debt	Current maturities of long-term debt
Long-term debt	$ 87,248	$ 69,643
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Long-term debt	Long-term debt
Total finance lease liabilities	$ 92,530	$ 72,693
Weighted Average remaining lease term, years
Operating leases	17 years 1 month 6 days	16 years 6 months
Finance leases	19 years 7 months 6 days	20 years
Weighted Average discount rate
Operating leases	5.40%	5.20%
Finance leases	5.50%	5.50%
Finance Lease
Finance Leases
Property and equipment	$ 125,018	$ 101,318
Accumulated depreciation	(44,346)	(38,423)
Property, plant and equipment, net, Total	$ 80,672	$ 62,895