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Equity-Based Compensation (Details) (USD $)
3 Months Ended 3 Months Ended 12 Months Ended 3 Months Ended 3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Dec. 31, 2013
Mar. 31, 2014
Restricted Stock [Member]
Dec. 31, 2013
Restricted Stock [Member]
Mar. 31, 2014
Restricted Stock Units (RSUs) [Member]
Dec. 31, 2013
Restricted Stock Units (RSUs) [Member]
Mar. 31, 2014
Employee Stock Option [Member]
Mar. 31, 2014
Performance Shares [Member]
Mar. 31, 2014
Performance Shares [Member]
Minimum [Member]
Mar. 31, 2014
Performance Shares [Member]
Maximum [Member]
Equity-Based Compensation Plan Activity [Line Items]                      
Allocated Share-based Compensation Expense $ 3,300,000 $ 1,900,000                  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]                      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number 2,495,836   1,280,255                
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross 1,223,388                    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period 0                    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period (7,807)                    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Outstanding, Number 448,464                    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number 448,464                    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number 1,973,141                    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price $ 20.57   $ 17.00                
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price $ 24.29                    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price $ 0.00                    
Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price $ 17.00                    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value 100,000                    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Outstanding, Weighted Average Exercise Price $ 17.00                    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price $ 21.36                    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price $ 17.00                    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term 9 years 0 months 12 days                    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Outstanding, Weighted Average Remaining Contractual Term 7 years 10 months 28 days                    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term 7 years 10 months 28 days                    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term 9 years 3 months 12 days                    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value 17,100,000                    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Outstanding, Aggregate Intrinsic Value 4,700,000                    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value 4,700,000                    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value 12,000,000                    
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period               3 years 0 months 0 days      
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]                      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value               $ 7.20      
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Weighted Average Volatility Rate               30.00% [1]      
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate               1.77% [2]      
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate               0.70%      
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term               6 years 0 months [3]      
Restricted Stock Unit, Plan Activity [Roll Forward]                      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number       2,014,179   1,342,757 1,351,572        
Equity awards granted         3,798,508 25,773     408,455    
Percentage of shares expected to vest                   0.00% 200.00%
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period       573,237   596          
Equity awards forfeited       4,617   33,992          
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value           $ 17.18 $ 17.04        
Weighted average grant date fair market value, granted during period           $ 24.29     $ 24.29    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value           $ 17.00          
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value           $ 17.00          
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number                 408,455    
Equity-based compensation expense, not yet recognized $ 39,700,000                    
Equity-based compensation expense, not yet recognized, period for recognition 2 years 10 months 1 day                    
[1] Based upon an assessment of the two-year, five-year and implied volatility for the Company’s selected peer group, adjusted for the Company’s leverage.
[2] Based on a composite U.S. Treasury rate.
[3] The expected term is calculated using the simplified method. The simplified method defines the expected term as the average of the option’s contractual term and the option’s weighted-average vesting period. The Company utilizes this method as it has limited historical stock option data that is sufficient to derive a reasonable estimate of the expected stock option term.