Share-Based Compensation - Summary of RSUs (Detail)	12 Months Ended
	Dec. 31, 2023 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Nonvested as of January 1, 2023	206,575
Granted	57,639
Vested	(77,012)
Forfeited	(6,617)
Nonvested as of December 31, 2023	180,585
Nonvested as of January 1, 2023, Weighted-Average Grant-Date Fair Value | $ / shares	$ 61.54
Weighted-Average Grant-Date Fair Value, Granted | $ / shares	88.69
Weighted-Average Grant-Date Fair Value, Vested | $ / shares	57.28
Weighted-Average Grant-Date Fair Value, Forfeited | $ / shares	74.93
Nonvested as of December 31, 2023, Weighted-Average Grant- Date Fair Value | $ / shares	$ 71.61
Performance and Service Required [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Nonvested as of January 1, 2023	178,536
Granted	46,119
Vested	(63,767)
Forfeited	(4,411)
Nonvested as of December 31, 2023	156,477
Service Required [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Nonvested as of January 1, 2023	28,039
Granted	11,520
Vested	(13,245)
Forfeited	(2,206)
Nonvested as of December 31, 2023	24,108