Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Cash Flows From Operating Activities:
Net Earnings	$ 49,312	$ 45,345
Net earnings	41,609	38,304
Adjustments to reconcile net earnings to net cash flows from operating activities:
Depreciation and amortization	103,436	103,914
Deferred income tax expense	24,252	27,797
Net unrealized (gains) losses on commodity derivatives	3,187	1,729
Realized (gains) on available-for-sale securities	(7,272)	(4,747)
Stock based compensation expense	3,399	3,198
Other, net	38	255
Changes in certain assets and liabilities:
Accounts receivable and unbilled revenues	(17,543)	(23,021)
Materials, supplies, and fuel stock	6,346	(159)
Other current assets	(20,688)	3,870
Other assets	18,237	6,356
Accounts payable	(29,384)	(7,424)
Accrued interest and taxes	(2,830)	93,077
Other current liabilities	(3,341)	(21,310)
Other liabilities	(3,343)	(68,972)
Net cash flows from operating activities	123,806	159,908
Cash Flows From Investing Activities:
Additions to utility and non-utility plant	(160,893)	(153,512)
Proceeds from sales of available-for-sale securities	53,119	76,106
Purchases of available-for-sale securities	(54,338)	(77,882)
Return of principal on PVNGS lessor notes	10,231	10,965
Other, net	750	1,254
Net cash flows from investing activities	(151,131)	(143,069)
Cash Flows From Financing Activities:
Short-term borrowings (repayments), net	(44,200)	1,300
Long-term borrowings	255,000	75,000
Repayment of long-term debt	(125,000)	(9,445)
Cash paid in debt exchange	0	(13,048)
Proceeds from stock option exercise	4,446	11,345
Awards of common stock	(13,939)	(19,741)
Dividends paid	(29,732)	(24,958)
Valencia’s transactions with its owner	(8,189)	(8,675)
Other, net	(1,482)	(2,804)
Net cash flows from financing activities	36,904	8,974
Change in Cash and Cash Equivalents	9,579	25,813
Cash and Cash Equivalents at Beginning of Period	2,533	8,985
Cash and Cash Equivalents at End of Period	12,112	34,798
Supplemental Cash Flow Disclosures:
Interest paid, net of amounts capitalized	54,712	58,267
Income taxes paid (refunded), net	(2,534)	(95,472)
Supplemental schedule of noncash investing activities:
Changes in accrued plant additions	(7,909)	(3,375)
Premium on long-term debt incurred in connection with debt exchange	0	36,297
Public Service Company of New Mexico [Member]
Cash Flows From Operating Activities:
Net Earnings	35,460	44,470
Net earnings	28,021	37,693
Adjustments to reconcile net earnings to net cash flows from operating activities:
Depreciation and amortization	71,327	69,179
Deferred income tax expense	19,716	21,836
Net unrealized (gains) losses on commodity derivatives	3,187	1,729
Realized (gains) on available-for-sale securities	(7,272)	(4,747)
Other, net	193	(876)
Changes in certain assets and liabilities:
Accounts receivable and unbilled revenues	(13,885)	(15,841)
Materials, supplies, and fuel stock	6,447	(238)
Other current assets	(22,588)	4,299
Other assets	18,790	6,196
Accounts payable	(26,737)	(5,829)
Accrued interest and taxes	(1,575)	45,380
Other current liabilities	3,943	(23,523)
Other liabilities	(3,193)	(69,059)
Net cash flows from operating activities	83,813	72,976
Cash Flows From Investing Activities:
Additions to utility and non-utility plant	(92,567)	(98,673)
Proceeds from sales of available-for-sale securities	53,119	76,106
Purchases of available-for-sale securities	(54,338)	(77,882)
Return of principal on PVNGS lessor notes	10,231	10,965
Other, net	(70)	1,227
Net cash flows from investing activities	(83,625)	(88,257)
Cash Flows From Financing Activities:
Short-term borrowings (repayments), net	(49,200)	(21,100)
Short-term borrowings (repayments), affiliate, net	(32,500)	0
Long-term borrowings	175,000	75,000
Repayment of long-term debt	(75,000)	0
Dividends paid	(264)	(264)
Valencia’s transactions with its owner	(8,189)	(8,675)
Other, net	(700)	(1,169)
Net cash flows from financing activities	9,147	43,792
Change in Cash and Cash Equivalents	9,335	28,511
Cash and Cash Equivalents at Beginning of Period	21	3,958
Cash and Cash Equivalents at End of Period	9,356	32,469
Supplemental Cash Flow Disclosures:
Interest paid, net of amounts capitalized	36,601	37,845
Income taxes paid (refunded), net	(215)	(44,999)
Supplemental schedule of noncash investing activities:
Changes in accrued plant additions	(5,595)	817
Texas-New Mexico Power Company [Member]
Cash Flows From Operating Activities:
Net earnings	16,336	12,065
Adjustments to reconcile net earnings to net cash flows from operating activities:
Depreciation and amortization	25,728	26,034
Deferred income tax expense	6,162	4,348
Other, net	(38)	(10)
Changes in certain assets and liabilities:
Accounts receivable and unbilled revenues	(3,658)	(7,180)
Materials, supplies, and fuel stock	(101)	79
Other current assets	(803)	(4,082)
Other assets	(273)	590
Accounts payable	1,381	807
Accrued interest and taxes	(726)	(1,517)
Other current liabilities	2,167	1,278
Other liabilities	365	886
Net cash flows from operating activities	46,540	33,298
Cash Flows From Investing Activities:
Additions to utility and non-utility plant	(64,502)	(47,390)
Net cash flows from investing activities	(64,502)	(47,390)
Cash Flows From Financing Activities:
Short-term borrowings (repayments), net	0	25,000
Short-term borrowings (repayments), net	(4,200)	7,500
Long-term borrowings	80,000	0
Repayment of long-term debt	(50,000)	0
Cash paid in debt exchange	0	(13,048)
Dividends paid	(6,803)	(3,726)
Other, net	(783)	(1,634)
Net cash flows from financing activities	18,214	14,092
Change in Cash and Cash Equivalents	252	0
Cash and Cash Equivalents at Beginning of Period	1	1
Cash and Cash Equivalents at End of Period	253	1
Supplemental Cash Flow Disclosures:
Interest paid, net of amounts capitalized	11,847	13,267
Income taxes paid (refunded), net	(304)	696
Supplemental schedule of noncash investing activities:
Changes in accrued plant additions	1,038	(886)
Premium on long-term debt incurred in connection with debt exchange	$ 0	$ 36,297