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Stock-Based Compensation (Narrative) (Details) - USD ($)
$ / shares in Units, $ in Millions
1 Months Ended 9 Months Ended
Feb. 28, 2015
Jun. 30, 2015
Jun. 30, 2014
Sep. 30, 2014
Restricted Stock Units (RSUs)        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Vesting period   3 years    
Unvested restricted stock outstanding   162,837   106,845
Compensation expense   $ 1.3 $ 2.0  
Restricted Stock Units (RSUs) | Performance Based Restricted Stock Unit        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Vesting period   3 years    
Actual amount of RSUs earned based on cumulative earnings   60.00%    
Restricted Stock Units (RSUs) | Time Based Restricted Stock Unit        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Vesting period   3 years    
Target RSUs granted range   40.00%    
Restricted Stock        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Compensation expense   $ 1.0 $ 0.9  
Restricted Stock | 2014 Non-Employee Director Equity Incentive Plan        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Vesting period 2 years      
Shares issued under the plan 16,000      
Shares issued, price per share $ 33.37      
Restricted Stock | 2014 Non-Employee Director Equity Incentive Plan | Vesting of First Anniversary        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Vesting percentage 50.00%      
Restricted Stock | 2014 Non-Employee Director Equity Incentive Plan | Vesting of Second Anniversary        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Vesting percentage 50.00%      
Minimum | Restricted Stock Units (RSUs) | Performance Based Restricted Stock Unit        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Target RSUs granted range   0.00%    
Maximum | Restricted Stock Units (RSUs) | Performance Based Restricted Stock Unit        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Target RSUs granted range   250.00%