Shareholders' Equity - Additional Information (Detail) - USD ($)	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Feb. 25, 2021
Class of Stock [Line Items]
Cash dividends received	$ 20,400,000	$ 18,200,000
Repurchase of common stock	3,408,000	7,595,000
Market value of shares repurchased under equity compensation plans	$ 0	$ 621,000
Employee Stock
Class of Stock [Line Items]
Company's common stock in lieu of cash to exercise options to purchase shares (in shares)	0	0
Other Share Based Awards
Class of Stock [Line Items]
Company's common stock in lieu of cash to exercise options to purchase shares (in shares)	0	12,381
2021 Stock Repurchase Plan
Class of Stock [Line Items]
Repurchase of common stock (in shares)			2,000,000
Stock repurchase program, percentage of common stock			6.70%
Repurchase of common stock (in shares)	99,332	150,000
Repurchase of common stock	$ 3,400,000	$ 7,000,000
Common Stock
Class of Stock [Line Items]
Repurchase of common stock (in shares)	99,332	162,381
Repurchase of common stock	$ 2,083,000	$ 3,399,000
Market value of shares repurchased under equity compensation plans	$ 0	$ 600,000