Regulatory Assets and Liabilities (Tables)

3 Months Ended

Mar. 31, 2026

Regulated Operations [Abstract]

Schedule of Regulatory Assets

Regulatory assets and liabilities were as follows at:


			Remaining Recovery Period						March 31, 2026						December 31, 2025
									(In thousands)
Regulatory assets:
Deferred income taxes			Over Plant lives						$	164,726					$	160,754
Refinancing fees			Up to 24 years						78,579						80,122
Unrealized loss on interest rate swaps			Up to 6 years						20,263						21,066
Unrealized loss on commodity derivatives			Up to 8 years						19,190						28,239
Other			Up to 49 years						21,068						21,192
									303,826						311,373
Regulatory liabilities:
Deferred revenue									(272,000)						(272,000)
Unrealized gain on equity investments									(16,436)						(18,489)
Post-retirement medical gain									(21,044)						(21,044)
Other									(22,296)						(24,772)
									(331,776)						(336,305)
Net regulatory liabilities									$	(27,950)					$	(24,932)

Schedule of Regulatory Liabilities

Regulatory assets and liabilities were as follows at:


			Remaining Recovery Period						March 31, 2026						December 31, 2025
									(In thousands)
Regulatory assets:
Deferred income taxes			Over Plant lives						$	164,726					$	160,754
Refinancing fees			Up to 24 years						78,579						80,122
Unrealized loss on interest rate swaps			Up to 6 years						20,263						21,066
Unrealized loss on commodity derivatives			Up to 8 years						19,190						28,239
Other			Up to 49 years						21,068						21,192
									303,826						311,373
Regulatory liabilities:
Deferred revenue									(272,000)						(272,000)
Unrealized gain on equity investments									(16,436)						(18,489)
Post-retirement medical gain									(21,044)						(21,044)
Other									(22,296)						(24,772)
									(331,776)						(336,305)
Net regulatory liabilities									$	(27,950)					$	(24,932)