Stock-Based Compensation - Summary of Activity Under Stock Option Plan (Detail) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Share-Based Payment Arrangement [Abstract]
Outstanding at beginning period - Options	1,303,250	1,343,080
Options granted	278,500	179,500
Options exercised	(241,460)	(214,330)
Options canceled, forfeited, or expired	(30,000)	(5,000)
Outstanding at ending period - Options	1,310,290	1,303,250
Exercisable at ending period - Options	489,540	614,875
Outstanding at beginning period - Wgtd. Avg. Exercise Price	$ 40.90	$ 35.28
Options granted - Wgtd. Avg. Exercise Price	87.13	62.13
Options exercised - Wgtd. Avg. Exercise Price	28.06	23.40
Options cancelled, forfeited, or expired - Wgtd. Avg. Exercise Price	66.31	44.23
Outstanding at ending period - Wgtd. Avg. Exercise Price	52.51	40.90
Exercisable at ending period - Wgtd. Avg. Exercise Price	$ 30.82	$ 28.03
Outstanding at ending period - Wgtd. Avg. Remaining Contractual Term, years	8 years 8 months 23 days	8 years 4 months 24 days
Exercisable at ending period - Wgtd. Avg. Remaining Contractual Term, years	6 years 9 months 18 days	7 years 1 month 24 days
Outstanding at ending period - Aggregate Intrinsic Value	$ 46,741	$ 38,656
Exercisable at ending period - Aggregate Intrinsic Value	$ 28,082	$ 26,153