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Stock-Based Compensation (Detail) - (Table 1) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended
Mar. 31, 2024
Mar. 31, 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 (7,970,000)        
Share Based Compensation Arrangement By Share Based Payment Award Options Vested In Period 73,000 79,000      
Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable During Period Weighted Average Exercise Price (in Dollars per share) $ 32.58 $ 36.63      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number 1,557,000 2,161,000 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 3,030,000        
Common stock authorized         11,000,000
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number 67,000        
Share Based Compensation Arrangement By Share-Based Payment Award Equity Options Nonvested Number 118,000        
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Minimum 47.40% 47.70%      
Outstanding at June 30, 2012 3 years 1 year 9 months 18 days      
Exercisable at June 30, 2012 1,000,000 2,612,000      
Exercisable at June 30, 2012 2 years 9 months 18 days 1 year 7 months 6 days      
Schedule Of Share Based Compensation Shares Authorized Under Stock Plans Issued And Avaliability
The following table summarizes the number of shares of common stock authorized for issuance under the 2019 Plan, the number of stock-based awards granted (net of expired or cancelled awards) under the 2019 Plan and the number of shares of common stock available for the grant of stock-based awards under the 2019 Plan:

Common stock authorized11,000
Stock-based awards, including restricted stock and stock options granted, net of expired or cancelled awards(7,970)
Common stock available for grant of stock-based awards as of March 31, 20243,030
        
Dividend yield 2.00% 2.60%      
Exercised (9,000) (11,000)      
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Nonvested Options Forfeited, Number of Shares   3,000      
Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price $ 26.10 $ 24.26      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price   $ 46.28      
Restricted Stock [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Allocated Share-based Compensation Expense $ 5,192 $ 5,393      
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized 50,417        
Employee Stock Option [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Allocated Share-based Compensation Expense 546 $ 746      
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized $ 902