PUBLIC SERVICE COMPANY OF NEW HAMPSHIRE AND SUBSIDIARIES CONSOLIDATED STATEMENTS OF COMMON STOCKHOLDER'S EQUITY - USD ($) $ in Thousands	Total	Common Stock	Capital Surplus, Paid In	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	PSNH	PSNH Common Stock	PSNH Capital Surplus, Paid In	PSNH Retained Earnings	PSNH Accumulated Other Comprehensive Income (Loss)
Beginning balance (in shares) at Dec. 31, 2022		348,443,855					301
Beginning balance at Dec. 31, 2022	$ 15,473,158	$ 1,799,920	$ 8,401,731	$ 5,527,153	$ (39,421)	$ 1,870,187	$ 0	$ 1,298,134	$ 572,126	$ (73)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income/(Loss)						195,659			195,659
Dividends on Common Stock	(942,398)			(942,398)		(112,000)			(112,000)
Capital Contributions from Eversource Parent						400,000		400,000
Other Comprehensive Income/(Loss), Net of Tax						73				73
Ending balance (in shares) at Dec. 31, 2023		349,540,266					301
Ending balance at Dec. 31, 2023	14,173,892	$ 1,799,920	8,460,876	4,142,515	(33,737)	2,353,919	$ 0	1,698,134	655,785	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income/(Loss)						214,883			214,883
Dividends on Common Stock	$ (1,025,027)			(1,025,027)		(62,000)			(62,000)
Capital Contributions from Eversource Parent						200,000		200,000
Other Comprehensive Income/(Loss), Net of Tax					7,200	0
Ending balance (in shares) at Dec. 31, 2024	366,608,052	366,608,052					301
Ending balance at Dec. 31, 2024	$ 15,039,387	$ 1,878,622	9,428,905	3,929,141	(26,472)	2,706,802	$ 0	1,898,134	808,668	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income/(Loss)						269,354			269,354
Dividends on Common Stock	$ (1,116,530)			(1,116,530)		(175,000)			(175,000)
Capital Contributions from Eversource Parent						75,000		75,000
Other Comprehensive Income/(Loss), Net of Tax					6,000	0
Ending balance (in shares) at Dec. 31, 2025	375,416,880	375,416,880					301
Ending balance at Dec. 31, 2025	$ 16,197,271	$ 1,914,273	$ 9,937,878	$ 4,504,983	$ (20,507)	$ 2,876,156	$ 0	$ 1,973,134	$ 903,022	$ 0