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Credit Arrangements (Tables)
3 Months Ended
Mar. 31, 2026
Credit Arrangements [Abstract]  
Credit Arrangements Credit Arrangements
Instrument Issue Date Maturity Date  Revolving Credit Limit   December 31, 2025   Borrowings   Repayments   March 31, 2026 
Line of Credit:                        
UG - CMA 10/21/21 10/2/26  25,000,000   0   0   0   0