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Stock Compensation (Details) - USD ($)
$ / shares in Units, $ in Millions
1 Months Ended 9 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Feb. 28, 2015
Jun. 30, 2016
Sep. 30, 2015
May 01, 2010
Long-Term Incentive Plan 2010            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Number of additional shares authorized (shares)   1,081,200 643,673      
Compensation not yet recognized $ 1.5          
Long-Term Incentive Plan 2010 | Common Stock Class A Non-voting            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Number of shares authorized (shares)           1,575,750
Increase of shares authorized for grant (shares) 185,026          
Long-Term Incentive Plan 2010 | Restricted stock            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Options granted (in dollars per share) $ 2.96          
Options, forfeitures in period (shares) 720,000          
Grant date fair value of canceled options $ 3.4          
Long-Term Incentive Plan 2010 | Performance Shares            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Options granted in period (shares) 421,394          
Compensation not yet recognized $ 0.8          
Accounts Payable and Other Accrued Expenses | Phantom Share Units            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Deferred compensation, current liability         $ 3.9  
Employee | Long-Term Incentive Plan 2010 | Restricted stock            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Options granted in period (shares) 961,718          
Non-employee Directors | Restricted stock            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Award vesting period       2 years    
Options, vesting In one year after grant       50.00%    
Options, vesting in two years after grant       50.00%    
Non-employee Directors | Long-Term Incentive Plan 2010 | Restricted stock            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Options granted in period (shares) 130,000          
Options granted (in dollars per share) $ 6.17