Reconciliations of Equity - Reconciliations of Total Equity (Parenthetical) (Detail) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Number of shares of common stock issued under incentive compensation plan	1,037	10,730	24,161	43,502
Common stock	$ 0.375	$ 0.365	$ 1.125	$ 1.095
Common Stock [Member]
Number of shares of common stock issued under incentive compensation plan	1,037	10,730	24,161	43,502
Additional Paid-in Capital [Member]
Number of shares of common stock issued under incentive compensation plan	1,037	10,730	24,161	43,502
Retained Earnings [Member]
Common stock	$ 0.375	$ 0.365	$ 1.125	$ 1.095