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Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2022

Accounting Policies [Abstract]

Schedule of Inventories

Inventories consist of the following as of December 31, 2022 and 2021:

(in thousands)			2022						2021
Finished Goods			$	43,812					$	39,903
Work in Process			31,766						35,705
Raw Material, Fuel and Supplies			70,374						72,882
Total Inventories			$	145,952					$	148,490

Schedule of Investments

The following is a summary of our investments at December 31, 2022 and 2021:

(in thousands)			2022						2021
Corporate-Owned Life Insurance Policies			$	38,991					$	41,078
Corporate and Government Debt Securities			8,761						9,202
Mutual Funds			5,503						5,432
Money Market Funds			1,560						949
Other Investments			30						29
Total Investments			$	54,845					$	56,690

Schedule of Estimated Service Lives For Rate-Regulated and Nonelectric Assets

The estimated service lives for rate-regulated electric assets and nonelectric assets are included below:

			Service Life Range
(years)			Low						High
Electric Assets:
Production Plant			13						113
Transmission Plant			51						75
Distribution Plant			16						70
General Plant			5						60
Nonelectric Assets:
Equipment			2						20
Buildings and Leasehold Improvements			2						40

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