XML 39 R61.htm IDEA: XBRL DOCUMENT v2.4.0.6
Stock-Based Compensation (Detail) (USD $)
0 Months Ended 1 Months Ended 12 Months Ended
Jul. 03, 2012
Feb. 08, 2012
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Tax Benefit from Stock Options Exercised     $ 4,608,000 $ 4,154,000 $ 4,718,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Total Intrinsic Value     15,386,000 10,768,000 11,684,000
Share Based Compensation Arrangement By Share Based Payment Award Options Vested In Period     829,000 860,000 587,000,000
Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable During Period Weighted Average Exercise Price (in Dollars per share)     $ 19.15 $ 15.92 $ 11.20
Share Based Compensation Arrangement By Share-Based Payment Award Equity Options Nonvested Number     1,158,000    
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized     6,416,000    
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition     2 years    
Employee Service Share Based Compensation Nonvested Restricted Stock Awards Total Compensation Cost Not Yet Recognized     90,642,000    
Employee Service Share Based Compensation Nonvested Restricted Awards Total Compensation Cost Not Yet Recognized Period For Recognition     9 years 11 months    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Total Fair Value     $ 5,553 $ 3,718 $ 4,537
Related Party Transaction Restricted Shares Granted During The Period 1,262,228 975,371      
Common Stock [Member]
         
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Share Price   41.01      
Subsequent Event [Member] | Common Stock [Member]
         
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Share Price 31.69