Stock-based Compensation - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares of common stock authorized for share based payment awards under 2011 Plan	500,000
Shares available for grant under the 2011 plan	611,299
Compensation expenses	$ 5,347,000	$ 5,741,000	$ 13,851,000
Income tax benefit recognized in the income statement for share-based compensation arrangements	$ 1,323,000	1,452,000	3,537,000
Weighted average period for amortization of unrecognized compensation cost	1 year 9 months 18 days
Proceeds from stock option exercises	$ 1,112,000	$ 2,795,000	$ 782,000
Stock Option [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Period of expiration	10 years
Weighted-average grant-date fair values of options awarded	$ 32.02	$ 38.72	$ 32.21
Intrinsic values of options exercised	$ 1,245,000	$ 2,364,000	$ 475,000
Unrecognized compensation cost	119,000
Actual tax benefit recognized for the tax deductions from stock based compensation	$ 811,000	$ 330,000	$ 36,000
Stock Option Granted Prior to 2017 [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period	2 years
Stock Options Granted in 2017 [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of awards vesting in each year	33.33%
SARs [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Period of expiration	10 years
Unrecognized compensation cost	$ 2,438,000
Weighted average period for amortization of unrecognized compensation cost	1 year 9 months 18 days
Weighted-average grant-date fair values of awards granted	$ 28.68	$ 38.98	$ 34.76
SARs Granted Prior to 2017 [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period	2 years
SARs Granted in 2017 [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of awards vesting in each year	33.33%
Stock Awards [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unrecognized compensation cost	$ 4,645,000
Weighted average period for amortization of unrecognized compensation cost	2 years 1 month 6 days
Weighted-average grant-date fair values of awards granted	$ 78.97	$ 104.96	$ 106.78