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Supplementary Financial Statements Information (Convertible Notes) (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net [Abstract]
Principle	$ 200,000	$ 200,000
Unamortized issuance costs	3,716	4,263
Net carrying amount	$ 196,284	$ 195,737

X

- Definition

Face (par) amount of debt instrument at time of issuance.

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- Definition

Amount of unamortized debt discount (premium) and debt issuance costs.

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The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

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