Share-Based Compensation - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares issuable upon exercise of outstanding options	541,263	851,082	995,091	1,227,074
Estimated pretax compensation expense	$ 15.0
Expiration period in years	4 years
Restricted stock units settled in shares exercisable in percentage	25.00%
Deferred stock units outstanding	58,000
Non-Employee Directors' Stock Options [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expiration period in years	10 years
Employee stock options exercisable in percentage	100.00%
Employee Stock Option [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expiration period in years	10 years
Service period in years	4 years
Employee Stock Option [Member] | Share-based Compensation Award, Tranche One [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock awards settled in stock exercisable in percentage	25.00%
Restricted Stock Units [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares to reduce shares available to grant by upon vesting of deferred restricted stock awards and units	1,531,118	1,614,210	1,463,193	2,146,050
Service period in years	4 years
Granted, Units	741,135	739,476	723,245
Maximum Payout Percentage	200.00%
Performance-based Restricted Stock Units [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares to reduce shares available to grant by upon vesting of deferred restricted stock awards and units	243,730	291,338
Service period in years	3 years
2016 Incentive Compensation Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock subject to awards of stock options or stock appreciation rights payable in shares	1
Common stock subject to any other form of award	1.35
Common stock available for future share-based awards	4,800,000
Shares issuable upon exercise of outstanding options	400,000
Number of shares to reduce shares available to grant by upon vesting of deferred restricted stock awards and units	2,800,000
2008 Incentive Compensation Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares issuable upon exercise of outstanding options	100,000
Number of shares to reduce shares available to grant by upon vesting of deferred restricted stock awards and units	100,000