XML 57 R47.htm IDEA: XBRL DOCUMENT v3.22.2
Capitalization (Narrative) (Details) - USD ($)
$ in Thousands
9 Months Ended
Jun. 30, 2022
Sep. 30, 2021
Debt Instrument [Line Items]    
Common stock shares issued due to SARs exercises 27,722  
Shares tendered 154,847  
Current Portion of Long-Term Debt $ 549,000 $ 0
Debt to Capitalization Ratio Maximum Excluded Unrealized Gains or Losses on Other Derivative Financial Instruments in AOCI 10,000  
Revolving Credit Facility [Member]    
Debt Instrument [Line Items]    
Line of Credit Facility, Maximum Borrowing Capacity 1,000,000  
364-Day Credit Agreement    
Debt Instrument [Line Items]    
Line of Credit Facility, Maximum Borrowing Capacity 250,000  
3.75% Notes Due March 2023 [Member]    
Debt Instrument [Line Items]    
Current Portion of Long-Term Debt $ 500,000  
Long-term debt, interest rate 3.75%  
7.395% Notes Due March 2023 [Member]    
Debt Instrument [Line Items]    
Current Portion of Long-Term Debt $ 49,000  
Long-term debt, interest rate 7.395%  
Restricted Stock Units [Member]    
Debt Instrument [Line Items]    
Common stock issued 123,589  
Performance Shares [Member]    
Debt Instrument [Line Items]    
Common stock issued 265,607  
Board Of Directors [Member]    
Debt Instrument [Line Items]    
Common stock issued 21,949