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Stock-Based Compensation (Detail) - (Table 5) (USD $)
In Thousands, except Share data, unless otherwise specified
3 Months Ended
Mar. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]  
Outstanding at January 1, 2012 3,373,000
Outstanding at January 1, 2012 (in Dollars per share) $ 17.01
Granted 341,000
Granted (in Dollars per share) $ 35.18
Exercised (31,000)
Exercised (in Dollars per share) $ 17.05
Cancelled/Forfeited (70,000)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price $ 27.64
Outstanding at June 30, 2012 3,613,000
Outstanding at June 30, 2012 (in Dollars per share) $ 18.51
Outstanding at June 30, 2012 3 years 7 months
Outstanding at June 30, 2012 (in Dollars) $ 63,120
Exercisable at June 30, 2012 2,370,000
Exercisable at June 30, 2012 (in Dollars per share) $ 13.81
Exercisable at June 30, 2012 2 years 8 months
Exercisable at June 30, 2012 (in Dollars) $ 52,542