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Income Taxes (Schedule of Components of Income Tax Expense (Benefit)) (Details) - USD ($) $ in Thousands			1 Months Ended	12 Months Ended
	Jan. 01, 2018	Dec. 31, 2017	Sep. 30, 2024	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2017
Current Federal Tax Expense (Benefit)				$ 3,427	$ 66,708	$ 60,639
Current State and Local Tax Expense (Benefit)				6,890	44,956	23,014
Current Income Tax Expense (Benefit)				10,317	111,664	83,653
Deferred Federal Income Tax Expense (Benefit)				408,851	136,671	(815,222)
Deferred State and Local Income Tax Expense (Benefit)				85,757	144,519	46,281
Deferred Income Tax Expense (Benefit)				494,608	281,190	(768,941)
Other Tax Expense (Benefit)				(6,973)	(11,827)	(5,247)
Income Tax Expense (Benefit)			$ 9,000	497,952	381,027	(690,535)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest				1,773,328	1,061,184	2,362,310
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest				2,271,280	1,442,211	1,671,775
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount				$ 476,969	$ 302,864	$ 351,073
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%	35.00%		21.00%	21.00%	21.00%
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount				$ 92,942	$ 81,377	$ 70,144
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent				4.10%	5.60%	4.20%
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ 3,362	$ 3,737	$ 3,836
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				0.10%	0.30%	0.20%
Effective Income Tax Rate Reconciliation, Tax Settlement, Amount				$ 0	$ 0	$ (842,769)
Effective Income Tax Rate Reconciliation, Tax Settlement, Percent				0.00%	0.00%	(50.40%)
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount				$ 4,134	$ (780)	$ (8,697)
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent				0.20%	(0.10%)	(0.50%)
Effective Income Tax Rate Reconciliation, Percent				21.90%	26.40%	(41.30%)
Regulatory differences - utility plant items [Member]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ (30,443)	$ (30,288)	$ (27,901)
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				(1.30%)	(2.10%)	(1.70%)
Equity component of AFUDC [Member]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ (37,357)	$ (27,343)	$ (20,172)
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				(1.60%)	(1.90%)	(1.20%)
Amortization of investment tax credits
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ (8,067)	$ (8,808)	$ (7,978)
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				(0.40%)	(0.60%)	(0.50%)
Flow-through / permanent differences [Member]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ 9,925	$ 33	$ (1,374)
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				0.40%	0.00%	(0.10%)
Provision for uncertain tax positions [Member]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ 12,434	$ 21,487	$ 18,884
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				0.50%	1.50%	1.10%
Domestic Tax Jurisdiction
Other Tax Expense (Benefit)				$ (6,452)	$ (10,178)	$ (4,852)
State and Local Jurisdiction [Member]
Other Tax Expense (Benefit)				(521)	(1,649)	(395)
Entergy Arkansas [Member]
Current Federal Tax Expense (Benefit)				(21,471)	(10,558)	33,100
Current State and Local Tax Expense (Benefit)				(4,595)	(2,275)	(4,201)
Current Income Tax Expense (Benefit)				(26,066)	(12,833)	28,899
Deferred Federal Income Tax Expense (Benefit)				117,798	68,988	(164,493)
Deferred State and Local Income Tax Expense (Benefit)				17,379	19,649	37,615
Deferred Income Tax Expense (Benefit)				135,177	88,637	(126,878)
Other Tax Expense (Benefit)				(1,231)	(1,230)	(1,231)
Income Tax Expense (Benefit)				107,880	74,574	(99,210)
Net Income (Loss)				440,532	324,766	402,081
Net Income (Loss) Attributable to Noncontrolling Interest				(3,079)	(5,300)	(5,231)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest				437,453	319,466	396,850
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest				545,333	394,040	297,640
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount				$ 114,520	$ 82,748	$ 62,504
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent				21.00%	21.00%	21.00%
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount				$ 19,388	$ 13,940	$ 13,291
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent				3.60%	3.50%	4.50%
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ 1,054	$ 1,073	$ 1,079
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				0.20%	0.30%	0.40%
Effective Income Tax Rate Reconciliation, Tax Settlement, Amount				$ 0	$ 0	$ (159,588)
Effective Income Tax Rate Reconciliation, Tax Settlement, Percent				0.00%	0.00%	(53.60%)
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount				$ 1,462	$ 0	$ 0
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent				0.30%	0.00%	0.00%
Effective Income Tax Rate Reconciliation, Percent				19.80%	18.90%	(33.30%)
Entergy Arkansas [Member] | Regulatory differences - utility plant items [Member]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ (8,085)	$ (9,885)	$ (8,812)
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				(1.50%)	(2.50%)	(3.00%)
Entergy Arkansas [Member] | Equity component of AFUDC [Member]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ (4,934)	$ (6,032)	$ (4,093)
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				(0.90%)	(1.50%)	(1.40%)
Entergy Arkansas [Member] | Amortization of investment tax credits
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ (1,201)	$ (1,201)	$ (1,201)
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				(0.20%)	(0.30%)	(0.40%)
Entergy Arkansas [Member] | Flow-through / permanent differences [Member]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ (1,866)	$ 214	$ 1,105
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				(0.30%)	0.10%	0.40%
Entergy Arkansas [Member] | Provision for uncertain tax positions [Member]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ (1,182)	$ 1,800	$ 2,600
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				(0.20%)	0.50%	0.90%
Entergy Arkansas [Member] | Domestic Tax Jurisdiction
Other Tax Expense (Benefit)				$ (1,231)	$ (1,230)	$ (1,231)
Entergy Arkansas [Member] | State and Local Jurisdiction [Member]
Other Tax Expense (Benefit)				0	0	0
Entergy Louisiana [Member]
Current Federal Tax Expense (Benefit)				(104,215)	(79,519)	(142,253)
Current State and Local Tax Expense (Benefit)				(2,779)	1,709	(6,397)
Current Income Tax Expense (Benefit)				(106,994)	(77,810)	(148,650)
Deferred Federal Income Tax Expense (Benefit)				297,466	201,737	(94,167)
Deferred State and Local Income Tax Expense (Benefit)				51,897	106,098	41,716
Deferred Income Tax Expense (Benefit)				349,363	307,835	(52,451)
Other Tax Expense (Benefit)				(4,556)	(4,616)	(4,680)
Income Tax Expense (Benefit)				237,813	225,409	(205,781)
Net Income (Loss)				1,109,948	887,645	1,270,382
Net Income (Loss) Attributable to Noncontrolling Interest				2,952	3,126	2,988
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest				1,112,900	890,771	1,273,370
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest				1,350,713	1,116,180	1,067,589
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount				$ 283,650	$ 234,398	$ 224,194
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%			21.00%	21.00%	21.00%	35.00%
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount				$ 49,965	$ 50,760	$ 51,899
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent				3.70%	4.50%	4.90%
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ 1,181	$ 1,529	$ 1,601
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				0.10%	0.10%	0.10%
Effective Income Tax Rate Reconciliation, Tax Settlement, Amount				$ 0	$ 0	$ (179,111)
Effective Income Tax Rate Reconciliation, Tax Settlement, Percent				0.00%	0.00%	(16.80%)
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount				$ 5	$ 0	$ 0
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent				0.00%	0.00%	0.00%
Effective Income Tax Rate Reconciliation, Percent				17.60%	20.20%	(19.30%)
Entergy Louisiana [Member] | Regulatory differences - utility plant items [Member]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ (10,069)	$ (9,988)	$ (5,535)
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				(0.70%)	(0.90%)	(0.50%)
Entergy Louisiana [Member] | Equity component of AFUDC [Member]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ (11,327)	$ (7,513)	$ (6,754)
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				(0.80%)	(0.70%)	(0.60%)
Entergy Louisiana [Member] | Amortization of investment tax credits
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ (4,502)	$ (4,563)	$ (4,625)
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				(0.30%)	(0.40%)	(0.40%)
Entergy Louisiana [Member] | Flow-through / permanent differences [Member]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ (718)	$ (3,244)	$ 126
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				(0.10%)	(0.30%)	0.00%
Entergy Louisiana [Member] | Provision for uncertain tax positions [Member]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ 4,307	$ 3,400	$ (400)
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				0.30%	0.30%	0.00%
Entergy Louisiana [Member] | Domestic Tax Jurisdiction
Other Tax Expense (Benefit)				$ (4,556)	$ (4,616)	$ (4,680)
Entergy Louisiana [Member] | State and Local Jurisdiction [Member]
Other Tax Expense (Benefit)				0	0	0
Entergy Mississippi [Member]
Current Federal Tax Expense (Benefit)				49,157	38,680	20,328
Current State and Local Tax Expense (Benefit)				8,905	2,407	4,142
Current Income Tax Expense (Benefit)				58,062	41,087	24,470
Deferred Federal Income Tax Expense (Benefit)				26,320	25,316	21,244
Deferred State and Local Income Tax Expense (Benefit)				10,991	14,292	9,446
Deferred Income Tax Expense (Benefit)				37,311	39,608	30,690
Other Tax Expense (Benefit)				(272)	(380)	(796)
Income Tax Expense (Benefit)				95,101	80,315	54,364
Net Income (Loss)				311,864	255,958	192,271
Net Income (Loss) Attributable to Noncontrolling Interest				(3,136)	(10,551)	(10,302)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest				308,728	245,407	181,969
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest				403,829	325,722	236,333
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount				$ 84,804	$ 68,402	$ 49,630
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent				21.00%	21.00%	21.00%
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount				$ 15,876	$ 13,210	$ 11,133
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent				3.90%	4.10%	4.70%
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ 359	$ 365	$ 367
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				0.10%	0.10%	0.20%
Effective Income Tax Rate Reconciliation, Tax Settlement, Amount				$ 0	$ 0	$ (3,291)
Effective Income Tax Rate Reconciliation, Tax Settlement, Percent				0.00%	0.00%	(1.40%)
Effective Income Tax Rate Reconciliation, Percent				23.50%	24.70%	23.00%
Entergy Mississippi [Member] | Regulatory differences - utility plant items [Member]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ (5,400)	$ (3,572)	$ (5,290)
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				(1.30%)	(1.10%)	(2.20%)
Entergy Mississippi [Member] | Equity component of AFUDC [Member]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ (1,984)	$ (1,910)	$ (1,796)
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				(0.50%)	(0.60%)	(0.80%)
Entergy Mississippi [Member] | Amortization of investment tax credits
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ (228)	$ (267)	$ (223)
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				(0.10%)	(0.10%)	(0.10%)
Entergy Mississippi [Member] | Flow-through / permanent differences [Member]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ 1,581	$ 2,987	$ 3,534
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				0.40%	0.90%	1.50%
Entergy Mississippi [Member] | Provision for uncertain tax positions [Member]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ 93	$ 1,100	$ 300
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				0.00%	0.30%	0.10%
Entergy Mississippi [Member] | Domestic Tax Jurisdiction
Other Tax Expense (Benefit)				$ (76)	$ 3	$ (622)
Entergy Mississippi [Member] | State and Local Jurisdiction [Member]
Other Tax Expense (Benefit)				(196)	(383)	(174)
Entergy New Orleans [Member]
Current Federal Tax Expense (Benefit)				18,671	(8,022)	(99,343)
Current State and Local Tax Expense (Benefit)				3,169	5,331	(5,854)
Current Income Tax Expense (Benefit)				21,840	(2,691)	(105,197)
Deferred Federal Income Tax Expense (Benefit)				(3,398)	9,297	(78,442)
Deferred State and Local Income Tax Expense (Benefit)				(2,387)	(2,916)	(6,302)
Deferred Income Tax Expense (Benefit)				(5,785)	6,381	(84,744)
Other Tax Expense (Benefit)				(200)	(848)	(32)
Income Tax Expense (Benefit)				15,855	2,842	(189,973)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest				50,411	15,847	228,938
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest				66,266	18,689	38,965
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount				$ 13,916	$ 3,925	$ 8,183
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent				21.00%	21.00%	21.00%
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount				$ 3,985	$ 1,248	$ 1,907
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent				6.00%	6.70%	4.90%
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ 207	$ 211	$ 214
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				0.30%	1.10%	0.50%
Effective Income Tax Rate Reconciliation, Tax Settlement, Amount				$ 0	$ 0	$ (198,424)
Effective Income Tax Rate Reconciliation, Tax Settlement, Percent				0.00%	0.00%	(509.20%)
Effective Income Tax Rate Reconciliation, Percent				23.90%	15.20%	(487.50%)
Entergy New Orleans [Member] | Regulatory differences - utility plant items [Member]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ (131)	$ (830)	$ (1,353)
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				(0.20%)	(4.40%)	(3.50%)
Entergy New Orleans [Member] | Equity component of AFUDC [Member]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ (390)	$ (445)	$ (309)
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				(0.60%)	(2.40%)	(0.80%)
Entergy New Orleans [Member] | Amortization of investment tax credits
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ (97)	$ (839)	$ (25)
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				(0.10%)	(4.50%)	(0.10%)
Entergy New Orleans [Member] | Flow-through / permanent differences [Member]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ (1,138)	$ (338)	$ (1,913)
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				(1.70%)	(1.80%)	(4.90%)
Entergy New Orleans [Member] | Provision for uncertain tax positions [Member]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ 847	$ 0	$ 600
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				1.30%	0.00%	1.50%
Entergy New Orleans [Member] | Domestic Tax Jurisdiction
Other Tax Expense (Benefit)				$ (200)	$ (848)	$ (32)
Entergy New Orleans [Member] | State and Local Jurisdiction [Member]
Other Tax Expense (Benefit)				0	0	0
Entergy Texas [Member]
Current Federal Tax Expense (Benefit)				4,479	8,281	2,851
Current State and Local Tax Expense (Benefit)				3,442	5,468	3,719
Current Income Tax Expense (Benefit)				7,921	13,749	6,570
Deferred Federal Income Tax Expense (Benefit)				58,464	51,588	56,496
Deferred State and Local Income Tax Expense (Benefit)				(252)	1,114	570
Deferred Income Tax Expense (Benefit)				58,212	52,702	57,066
Other Tax Expense (Benefit)				(767)	(767)	(764)
Income Tax Expense (Benefit)				65,366	65,684	62,872
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest				334,071	293,622	291,273
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest				399,437	359,306	354,145
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount				$ 83,882	$ 75,454	$ 74,370
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent				21.00%	21.00%	21.00%
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount				$ 2,731	$ 5,164	$ 2,574
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent				0.70%	1.40%	0.70%
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ 371	$ 377	$ 381
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				0.10%	0.10%	0.10%
Effective Income Tax Rate Reconciliation, Tax Settlement, Amount					$ 0	$ (3,112)
Effective Income Tax Rate Reconciliation, Tax Settlement, Percent				0.00%	0.00%	(0.90%)
Effective Income Tax Rate Reconciliation, Percent				16.40%	18.30%	17.80%
Entergy Texas [Member] | Regulatory differences - utility plant items [Member]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ (3,427)	$ (4,537)	$ (6,394)
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				(0.90%)	(1.30%)	(1.80%)
Entergy Texas [Member] | Equity component of AFUDC [Member]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ (17,172)	$ (10,045)	$ (5,920)
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				(4.30%)	(2.80%)	(1.70%)
Entergy Texas [Member] | Amortization of investment tax credits
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ (748)	$ (748)	$ (748)
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				(0.20%)	(0.20%)	(0.20%)
Entergy Texas [Member] | Flow-through / permanent differences [Member]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ (149)	$ (760)	$ 1,493
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				0.00%	(0.20%)	0.40%
Entergy Texas [Member] | Provision for uncertain tax positions [Member]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ (122)	$ 777	$ 211
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				0.00%	0.20%	0.10%
Entergy Texas [Member] | Domestic Tax Jurisdiction
Other Tax Expense (Benefit)				$ (767)	$ 0	$ (764)
Entergy Texas [Member] | State and Local Jurisdiction [Member]
Other Tax Expense (Benefit)				0	(767)	0
System Energy [Member]
Current Federal Tax Expense (Benefit)				(3,190)	(5,527)	337
Current State and Local Tax Expense (Benefit)				(3,115)	(396)	(1,570)
Current Income Tax Expense (Benefit)				(6,305)	(5,923)	(1,233)
Deferred Federal Income Tax Expense (Benefit)				18,485	29,470	26,528
Deferred State and Local Income Tax Expense (Benefit)				7,339	9,939	4,477
Deferred Income Tax Expense (Benefit)				25,824	39,409	31,005
Other Tax Expense (Benefit)				56	(3,983)	2,260
Income Tax Expense (Benefit)				19,575	29,503	32,032
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest				88,095	103,500	108,772
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest				107,670	133,003	140,804
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount				$ 22,611	$ 27,931	$ 29,569
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent				21.00%	21.00%	21.00%
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount				$ 4,893	$ 4,936	$ 5,798
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent				4.50%	3.70%	4.10%
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ 198	$ 202	$ 204
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				0.20%	0.20%	0.10%
Effective Income Tax Rate Reconciliation, Tax Settlement, Amount				$ 0	$ 0	$ (1,575)
Effective Income Tax Rate Reconciliation, Tax Settlement, Percent				0.00%	0.00%	(1.10%)
Effective Income Tax Rate Reconciliation, Percent				18.20%	22.20%	22.70%
System Energy [Member] | Regulatory differences - utility plant items [Member]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ (3,330)	$ (1,475)	$ (517)
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent				(3.10%)	(1.10%)	(0.40%)
System Energy [Member] | Equity component of AFUDC [Member]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount				$ (1,549)	$ (1,398)	$ (1,301)
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