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Capitalization (Narrative) (Details) - USD ($)
$ in Thousands
3 Months Ended
Dec. 31, 2018
Sep. 30, 2018
Debt Instrument [Line Items]    
Common stock shares issued due to SARs exercises 94,047  
Shares tendered 148,460  
Current Portion of Long-Term Debt $ 0 $ 0
Restricted Stock Units [Member]    
Debt Instrument [Line Items]    
Common stock issued 79,654  
Performance Shares [Member]    
Debt Instrument [Line Items]    
Common stock issued 281,882  
Board Of Directors [Member]    
Debt Instrument [Line Items]    
Common stock issued 7,020