Fair Value Measurements - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Interest and dividends	$ 1,600,000	$ 1,100,000	$ 951,000
Mark-to-market gain (loss)	$ 7,800,000	$ (14,200,000)	$ 3,000,000
Measurement Input, Price Volatility | Weighted Average | Swaptions
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Implied volatilities	18.00%