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Stock-Based Compensation (Narrative) (Details) - USD ($)
$ in Millions
3 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Jun. 30, 2015
Dec. 31, 2013
Long-Term Management Incentive Compensation Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Shares approved to be issued under plan 500,000      
Shares issued 240,325      
Performance awards earned, percentage payable as stock 60.00%      
Performance awards earned, percentage payable as cash 40.00%      
Cash awards payable within current liabilities     $ 0.7  
Compensation cost   $ 0.7    
Stock Option Plans [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Period options are excercisable 10 years      
New Long-Term Management Incentive Compensation Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Shares approved to be issued under plan       700,000
Shares issued 2,594      
Compensation cost $ 0.3      
New Long-Term Management Incentive Compensation Plan [Member] | 2016-2018[Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Compensation cost $ 1.0      
New Omnibus Stock Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Shares approved to be issued under plan 700,000      
Compensation cost $ 0.2      
Period options are excercisable 10 years      
Shares available for future grants 572,682