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Stock-Based Compensation Plans - Restricted Shares and Restricted Stock Units (Details)
$ in Thousands
12 Months Ended
Sep. 22, 2015
Dec. 31, 2015
USD ($)
trading_day
service_period
shares
Dec. 31, 2014
USD ($)
shares
Dec. 31, 2013
USD ($)
shares
Sep. 30, 2015
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Stock-based compensation expense   $ 13,849 $ 11,931 $ 21,482  
Unrecognized compensation expense   $ 9,700      
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized | shares   167,800   92,000  
Number of Consecutive Trading Days Common Stock Must Reach Certain Closing Price For Restricted Stock to Fully Vest | trading_day   20      
Restricted stock          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Unrecognized compensation expense   $ 16,000      
Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plan   1 year 10 months 24 days      
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized | shares         29,218
Stock-based compensation expense   $ 1,300      
Other awards          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Stock-based compensation expense   $ 2,900      
2007 Incentive Plan          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Award vesting period (in years)   3 years      
2007 Incentive Plan | Restricted Stock Units (RSU)          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Award vesting period (in years)   3 years      
Executive Long-Term Incentive Compensation Plan (the “ELTI Plan”)          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Performance and service period under adopted ELTI Plan 30 months        
Executive Long-Term Incentive Compensation Plan (the “ELTI Plan”) | Restricted Stock Units (RSU)          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Number of units received by NEOs and Grantees under adopted ELTI Plan (in shares) | shares   22,142      
Share-based Compensation Arrangement by Share-based Payment Award, Number of Vesting Service Periods | service_period   2      
Unrecognized compensation expense   $ 2,500      
Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plan   18 months      
Executive Long-Term Incentive Compensation Plan (the “ELTI Plan”) | Performance Share Units (PSU)          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Performance and service period under adopted ELTI Plan 30 months        
Number of units received by NEOs and Grantees under adopted ELTI Plan (in shares) | shares   27,282      
Maximum number of performance share units as percentage of original award (in percent) 250.00%        
Unrecognized compensation expense   $ 3,800      
Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plan   24 months      
Executive Long-Term Incentive Compensation Plan (the “ELTI Plan”) | RSU and PSU awards          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Stock-based compensation expense   $ 900      
NEOs, Grantees and certain other employees          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Stock-based compensation expense   6,200      
NEOs, Grantees and certain other employees | Restricted stock          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Award vesting period (in years)       4 years  
2013 New Company LTIP          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Stock-based compensation expense   $ 1,900      
Minimum | Common Stock          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term   7 months      
Maximum | Common Stock          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plan   23 months      
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term   3 years      
Performance-Based Awards | Restricted stock          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number | shares       324,000  
Number of vested shares after achievement of consecutive trading days closing price stock requirement | shares   324,000 324,000 324,000  
Performance-Based Awards | NEOs, Grantees and certain other employees | Restricted stock          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number | shares   27,282      
Service Period Awards          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Unrecognized compensation expense   $ 800