XML 108 R92.htm IDEA: XBRL DOCUMENT v3.6.0.2
Equity-Based Compensation (Narrative) (Details) - USD ($)
$ / shares in Units, $ in Thousands
1 Months Ended 12 Months Ended
Jan. 31, 2016
Dec. 31, 2015
Jun. 30, 2015
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Number of shares available for issuance under the Plan       550,000      
Non-employee directors plan awards       85,000      
Granted (in shares)       0 37,500 0  
Market price of common stock, per share       $ 41.65      
Unrecognized compensation cost       $ 9,957      
Weighted average cost recognition period, in years       2 years 2 months 1 day      
Management Stock Purchase Plan              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Restricted stock units credited       $ 3,137 $ 1,901 $ 2,120  
Minimum              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Typical vesting period, in years       1 year      
Maximum              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Typical vesting period, in years       4 years      
Performance Shares              
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, Units Earned and Convertible to Cash       128,000 219,000 231,000 114,000
Typical vesting period, in years       3 years      
Award performance period       1 year      
Performance stock units outstanding   396,714   396,714 396,714    
Shares awarded       0 396,714 0  
Weighted average fair value of per unit awarded (in USD per share)       $ 0.00 $ 19.78 $ 0  
Percentage earned on target shares             50.00%
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Number of Shares       256,000 438,000    
Units earned based on target units             237,000
Equity Based Compensation Percent Of Targeted Performance Stock Units Earned       200.00% 200.00%    
Restricted stock units credited $ 2,723            
Number of days trailing for closing price             90 days
2015 Equity Incentive Plan | Performance Shares              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Award performance period   3 years          
Shares awarded   75,000 321,714