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Stock-Based Compensation - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Feb. 28, 2025	Feb. 29, 2024	Feb. 28, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding stock options	16,542	37,442
Stock-based compensation	$ 14,243,000	$ 11,636,000	$ 8,827,000
Unrecognized compensation expense	$ 7,200,000
Weighted average recognition period of compensation expenses	1 year 8 months 12 days
Total intrinsic value of options exercised	$ 8,300,000	$ 7,000,000		$ 10,800,000
Weighted-average grant-date fair value per share of options granted	$ 0	$ 0	$ 94.36
Stock Option and Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation	$ 7,500,000	$ 5,700,000	$ 3,900,000
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value of shares vested	$ 9,700,000	1,700,000	2,100,000
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock vesting period	3 years
Unrecognized compensation expense	$ 7,200,000
Weighted average recognition period of compensation expenses	1 year 9 months 18 days
Operating expense	$ 5,300,000	4,500,000	3,800,000
Fair value of shares vested	$ 13,700,000	$ 4,200,000	$ 3,600,000
After three years [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock vesting percentage	25.00%
After three years [Member] \| Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock vesting period	3 years
After five years [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock vesting period	50 years
After five years [Member] \| Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock vesting period	5 years
After four years [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock vesting percentage	25.00%
After four years [Member] \| Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock vesting period	4 years
January 2020 - December 2022 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance period share issuance range						25,716
January 2019 - December 2021 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance period share issuance range							63,188
January 2020 – December 2022 [Member] \| Subsequent Event [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance period share issuance range					23,434
Maximum [Member] \| Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock vesting period	5 years
Maximum [Member] \| January 2022 - December 2024 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance unit awards, outstanding	27,838
Maximum [Member] \| January 2023 - December 2025 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance unit awards, outstanding	15,914
Minimum [Member] \| Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock vesting period	3 years
Non Employee Director [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Contractual service	3 years
Contractual term	7 years
Restricted stock vesting period	3 years
2018 Omnibus Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock reserved	1,100,000
Reserved and unissued shares	633,409	677,500
2018 Omnibus Incentive Plan [Member] \| Non Employee Director [Member] \| Director Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares issued to non employee director	301	379	396
2018 Omnibus Incentive Plan [Member] \| Non Employee Director [Member] \| Maximum [Member] \| Director Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Annual grant amount	$ 500,000
2011 Omnibus Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock reserved	2,350,000
Additional grant under Plan	0
Reserved and unissued shares	391,089	391,089
Directors' Deferred Fee Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares issued to non employee director	1,841	2,729	3,272