Stock Based Compensation - Information with Respect to Unvested Restricted Stock Awards and Incentive Plan (Detail) - Restricted Stock [Member] - $ / shares	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Beginning balance, shares	271,417	342,459
Granted, Number of Restricted Stock Awards		6,000
Vested, Number of Restricted Stock Awards	(29,690)	(40,352)
Forfeited, Number of Restricted Stock Awards	(200)	(2,125)
Ending balance, shares	241,527	305,982
Nonvested, Weighted-Average Grant Date Fair Value, Beginning balance	$ 37.12	$ 39.86
Granted, Weighted-Average Grant Date Fair Value		51.76
Vested, Weighted-Average Grant Date Fair Value	56.05	54.83
Forfeited, Weighted-Average Grant Date Fair Value	51.87	40.33
Nonvested, Weighted-Average Grant Date Fair Value, Ending balance	$ 34.78	$ 38.11