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Stock-Based Compensation (Detail) - (Table 4) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]      
Outstanding at January 1, 2012 2,674,000    
Outstanding at January 1, 2012 (in Dollars per share) $ 26.80    
Granted (270,000)    
Granted (in Dollars per share) $ 43.30    
Exercised (411,000)    
Exercised (in Dollars per share) $ 23.67    
Cancelled/Forfeited (2,000)    
Outstanding at June 30, 2012 2,531,000 2,674,000  
Outstanding at June 30, 2012 (in Dollars per share) $ 29.06 $ 26.80  
Outstanding at June 30, 2012 2 years 8 months 12 days    
Outstanding at June 30, 2012 (in Dollars) $ 44,054    
Exercisable at June 30, 2012 2,070,000    
Exercisable at June 30, 2012 (in Dollars per share) $ 28.20    
Stock based compensation, shares exercisable, weighted average remaining contractual term 2 years 7 months 6 days    
Exercisable at June 30, 2012 (in Dollars) $ 37,829    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price $ 31.56    
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Minimum 0.10% 0.20% 1.60%
Risk free interest rate 1.00% 1.60% 2.50%