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Stock-Based Compensation (Detail) - (Table 5) - USD ($)
$ / shares in Units, $ in Thousands
 6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]    
Outstanding at January 1, 2012 2,531,000 2,674,000
Outstanding at January 1, 2012 (in Dollars per share) $ 29.06 $ 26.80
Granted 265,000 28,000
Granted (in Dollars per share) $ 37.06 $ 37.77
Exercised (18,000) (295,000)
Exercised (in Dollars per share) $ 23.72 $ 23.15
Outstanding at June 30, 2012 2,778,000 2,407,000
Outstanding at June 30, 2012 (in Dollars per share) $ 29.86 $ 27.37
Outstanding at June 30, 2012 2 years 6 months 3 years
Outstanding at June 30, 2012 (in Dollars) $ 12,267 $ 0
Exercisable at June 30, 2012 2,431,000 2,054,000
Exercisable at June 30, 2012 (in Dollars per share) $ 28.78 $ 27.17
Exercisable at June 30, 2012 2 years 2 months 12 days 2 years 10 months 24 days
Exercisable at June 30, 2012 (in Dollars) $ 12,196