Stock-Based Compensation - Time-Based Restricted Stock and Restricted Stock Unit Activity (Detail) - Time-Based Restricted Stock and Time-Based Restricted Stock Units [Member] - $ / shares	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Schedule Of Restricted Stock Activity [Line Items]
Nonvested, Shares, Beginning Balance	111,546	160,722	218,466
Time-based Restricted Stock, Granted	57,094	33,703	54,406
Time-based Restricted Stock, Vested	(56,719)	(78,081)	(111,036)
Time-based Restricted Stock, Forfeited	(1,286)	(4,798)	(1,114)
Nonvested, Shares, Ending Balance	110,635	111,546	160,722
Nonvested, Weighted-Average Grant Price Per Share, Beginning Balance	$ 52.91	$ 35.68	$ 28.75
Weighted-Average Grant Price Per Share, Granted	75.06	100.5	53.97
Weighted-Average Grant Price Per Share, Vested	58.13	37.81	30.94
Weighted-Average Grant Price Per Share, Forfeited	86.84	66	40.34
Nonvested, Weighted-Average Grant Price Per Share, Ending Balance	$ 61.28	$ 52.91	$ 35.68