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Share-Based Compensation (Narrative) (Details) - shares
1 Months Ended 6 Months Ended
Feb. 29, 2016
Jun. 30, 2016
Feb. 28, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Performance period of restricted stock units (in years)   3 years  
Common Stock [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares issued during period 88,074    
Shares withheld for payroll taxes 58,822    
Incentive Award Plan 2015 [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of shares authorized     4,900,000
Incentive Award Plan 2015 [Member] | Common Stock [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant   4,709,500  
Two Thousand Five Plan [Member] | Common Stock [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant   135,500  
Target Restricted Stock Units, 2015 Grants [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Nonvested options forfeited   2,000  
Target Restricted Stock Units, 2014 Grants [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Nonvested options forfeited   2,500  
Target Restricted Stock Units, 2013 Grants [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Nonvested options forfeited   2,500  
Employee Stock Option [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Option vesting term (in years)   10 years  
Restricted Stock [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
RSUs vested during period 146,896    
Restricted Stock [Member] | Incentive Award Plan 2015 [Member]      
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   190,500  
Restricted Stock [Member] | Two Thousand Five Plan [Member]      
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   83,000