Long-Term Debt	3 Months Ended
Mar. 31, 2022
Debt Disclosure [Abstract]
Long Term Debt	NOTE 9. LONG-TERM DEBT In March 2022, the Company issued and sold $400.0 million of 4.00 percent first mortgage bonds due in 2052 through a public offering. In connection with the pricing of the first mortgage bonds in March 2022, the Company cash-settled thirteen interest rate swap derivatives (notional aggregate amount of $140.0 million) and paid a net amount of $17.0 million, which will be amortized as a component of interest expense over the life of the debt. See Note 5 for a discussion of interest rate swap derivatives. The total net proceeds from the sale of the new bonds was used to repay the borrowings outstanding under the Company’s $400.0 million committed line of credit in March 2022. In April 2022, the Company used the remainder of the proceeds, as well as borrowings on committed line of credit to pay off $250.0 million of maturing debt.

Long-Term Debt

3 Months Ended

Mar. 31, 2022

NOTE 9. LONG-TERM DEBT

In March 2022, the Company issued and sold $400.0 million of 4.00 percent first mortgage bonds due in 2052 through a public offering. In connection with the pricing of the first mortgage bonds in March 2022, the Company cash-settled thirteen interest rate swap derivatives (notional aggregate amount of $140.0 million) and paid a net amount of $17.0 million, which will be amortized as a component of interest expense over the life of the debt. See Note 5 for a discussion of interest rate swap derivatives.

The total net proceeds from the sale of the new bonds was used to repay the borrowings outstanding under the Company’s $400.0 million committed line of credit in March 2022. In April 2022, the Company used the remainder of the proceeds, as well as borrowings on committed line of credit to pay off $250.0 million of maturing debt.