Derivative Financial Instruments - Information about Hedged Items Included in Consolidated Balance Sheet (Detail) - Long-term Debt [Member] - Derivatives Designated and Qualifying as Hedging Instruments [Member] - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Carrying Amount [Member]
Derivatives, Fair Value [Line Items]
Hedged Item	$ 1,834,030	$ 1,433,731
Cumulative Amount of Fair Value Hedging Adjustment Increasing (Decreasing) the Carrying Amount [Member]
Derivatives, Fair Value [Line Items]
Hedged Item	$ (161,230)	$ (65,310)