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Stock-Based Compensation (Details) - USD ($)
shares in Thousands, $ in Thousands
12 Months Ended
Apr. 01, 2013
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock options outstanding   0 0 0
Restricted stock awards granted   1,438 1,031 1,126
Vesting period   3 years    
Compensation expense   $ 34,733 $ 32,793 $ 13,558
Granted after November 13, 2015 [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting period   3 years    
Award vesting rights, percentage   33.00%    
Director Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Compensation expense   $ 564 849 600
Incentive Plans [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Compensation expense   $ 34,169 31,944 12,958
2015 Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Common stock reserved for issuance   5,972    
Restricted Stock Awards [Member] | Incentive Plans [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Estimated future value of awards granted   $ 22,898 $ 49,121 $ 67,942
Non-Employee Directors [Member] | Director Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Restricted stock awards granted   26 17 12
Common stock available for future grants   106    
Limit on value of award shares to directors $ 100      
Non-Employee Directors [Member] | Initial Grants [Member] | Director Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Common stock issued upon reaching milestones   1    
Non-Employee Directors [Member] | Annual Grants [Member] | Director Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Common stock issued upon reaching milestones   3    
Non-Employee Directors [Member] | Interim Grants [Member] | Director Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Common stock issued upon reaching milestones   3    
Executive Officer [Member] | Incentive Plans [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Restricted stock awards granted   260 240 212