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Short-Term Borrowings (Tables)
6 Months Ended
Jun. 30, 2025
Short-Term Borrowings [Abstract]  
Schedule of Lines of Credit

The Company maintains lines of credit aggregating $140.0 million.

 

   (Millions)         
   As of June 30, 2025         
   Outstanding  Available  Maximum  Credit Type  Renewal Date
Bank of America  $
   $60.0   $60.0   Uncommitted  January 23, 2026
PNC Bank   44.6   $23.4    68.0   Committed  January 31, 2027
CoBank, ACB   10.6    1.4    12.0   Committed  May 20, 2026
   $55.2   $84.8   $140.0       
Schedule of Weighted Average Daily Amounts of Borrowings Outstanding and Weighted Average Interest Rates

The weighted average daily amounts of borrowings outstanding under these credit lines and the weighted average interest rates on those amounts were as follows:

 

   (In Thousands)
   Three Months Ended  Six Months Ended
   June 30,  June 30,
   2025  2024  2025  2024
Average Daily Amounts Outstanding  $47,018   $62,934   $38,304   $56,463 
Weighted Average Interest Rates   5.43%    6.43%    5.43%    6.42%