Stock-Based Compensation - Summary of Company's Stock Option Plan Activity (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended			6 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2023	Mar. 31, 2023	Mar. 31, 2022	Jun. 30, 2023	Jun. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022	Dec. 31, 2021
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding [Roll Forward]
Outstanding, Beginning Balance, Number of Options	440,000	440,000	440,000	440,000	440,000	440,000	440,000	440,000
Grant Number of Options	150,000
Outstanding, Ending Balance, Number of Options	590,000	440,000	440,000	440,000	440,000	590,000	440,000	440,000	440,000
Exercisable, Number of Options	412,500					412,500	357,500
Outstanding, Beginning Balance, Weighted Average Exercise Price	$ 45.25	$ 45.25	$ 45.25	$ 45.25	$ 45.25	$ 45.25	$ 45.25	$ 45.25
Grant Weighted Average Exercise Price	70
Outstanding, Ending Balance, Weighted Average Exercise Price	51.54	$ 45.25	$ 45.25	$ 45.25	$ 45.25	51.54	45.25	$ 45.25	$ 45.25
Exercisable, Weighted-Average Exercise Price	$ 45.07					$ 45.07	$ 44.23
Outstanding, Weighted-Average Remaining Contractual Term		5 years 3 months 18 days	6 years 3 months 18 days	5 years 1 month 6 days	6 years 1 month 6 days	6 years 1 month 6 days	5 years 9 months 18 days	5 years 7 months 6 days	6 years 7 months 6 days
Exercisable, Weighted-Average Remaining Contractual Term						4 years 8 months 12 days	5 years 6 months
Outstanding, Aggregate Intrinsic Value	$ 3,978	$ 3,146	$ 10,494	$ 7,863	$ 9,354	$ 3,978	$ 117	$ 0	$ 18,119
Exercisable, Aggregate Intrinsic Value	$ 3,805					$ 3,805	$ 117