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Stock-Based Compensation (Detail) - (Table 1) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Dec. 31, 2023
Dec. 31, 2022
May 24, 2019
Share-Based Payment Arrangement [Abstract]              
Stock-based awards, including restricted stock and stock options granted, net of expired or cancelled     (8,637,000)        
Share Based Compensation Arrangement By Share Based Payment Award Options Vested In Period 65,000 70,000 138,000 149,000      
Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable During Period Weighted Average Exercise Price (in Dollars per share) $ 31.94 $ 36.51 $ 32.28 $ 36.57      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number 1,629,000 2,145,000 1,629,000 2,145,000 1,278,000 2,111,000  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Common stock available for grant of stock-based awards as of June 30, 2012 10,363,000   10,363,000        
Common stock authorized             19,000,000
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number 200,000   200,000        
Share Based Compensation Arrangement By Share-Based Payment Award Equity Options Nonvested Number 278,000   278,000        
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Minimum     34.10% 40.60%      
Outstanding at June 30, 2012     3 years 2 months 12 days 2 years      
Exercisable at June 30, 2012 1,026,000 2,426,000 1,026,000 2,426,000      
Exercisable at June 30, 2012     2 years 8 months 12 days 1 year 7 months 6 days      
Dividend yield     2.00% 2.50%      
Exercised     (46,000) (37,000)      
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Nonvested Options Forfeited, Number of Shares       2,000      
Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price     $ 32.18 $ 23.29      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price       $ 46.28      
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Maximum     47.40% 48.10%      
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Minimum     4.00% 3.70%      
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Maximum     4.60% 4.00%      
Weighted average fair value     $ 13.22 $ 10.95      
Maximum              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Expected life in years     4 years 5 years      
Minimum              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Expected life in years     3 years 3 years      
Restricted Stock [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized $ 50,930   $ 50,930        
Restricted And Performance Based Stock Awards              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Allocated Share-based Compensation Expense 6,238 $ 5,406 11,430 $ 10,799      
Employee Stock Option [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Allocated Share-based Compensation Expense 603 $ 694 1,149 $ 1,440      
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized $ 2,712   $ 2,712