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Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Income Taxes [Line Items] |  |  |
Federal income tax at statutory rates | $ 44,375 | $ 51,330 | $ 43,670
Amortization of accumulated investment tax credits | (1,182) | (1,247) | (890)
Amortization of excess deferred income tax | (23,599) | (24,484) | (30,723)
Flow-through of depreciation items | 2,795 | 798 | 1,368
(Earnings) attributable to non-controlling interest in Valencia | (3,176) | (3,253) | (2,943)
State income tax, net of federal (benefit) | 6,826 | 9,660 | 6,961
Allowance for equity funds used during construction | (2,898) | (2,776) | (2,363)
Regulatory recovery of prior year impairments of state net operating loss carryforward, including amortization | 0 | 0 | 1,367
Allocation of tax (benefit) related to stock compensation awards | 91 | (788) | (392)
Non-deductible compensation | 1,125 | 899 | 2,630
Transaction costs | 74 | 848 | 0
Other | 1,699 | 1,595 | 1,951
Total income taxes | $ 26,130 | $ 32,582 | $ 20,636
Effective tax rate | 12.37% | 13.33% | 9.92%
Public Service Company of New Mexico |  |  |
Income Taxes [Line Items] |  |  |
Federal income tax at statutory rates | $ 29,026 | $ 41,696 | $ 38,193
Amortization of accumulated investment tax credits | (172) | (237) | (243)
Amortization of excess deferred income tax | (14,421) | (15,158) | (21,609)
Flow-through of depreciation items | 2,641 | 689 | 1,279
(Earnings) attributable to non-controlling interest in Valencia | (3,176) | (3,253) | (2,943)
State income tax, net of federal (benefit) | 5,694 | 7,609 | 7,111
Allowance for equity funds used during construction | (1,958) | (2,080) | (1,461)
Regulatory recovery of prior year impairments of state net operating loss carryforward, including amortization | 0 | 0 | 1,367
Allocation of tax (benefit) related to stock compensation awards | 65 | (563) | (279)
Non-deductible compensation | 701 | 547 | 1,554
Transaction costs | 10 | 22 | 0
Other | 788 | (2,280) | (1,112)
Total income taxes | $ 19,198 | $ 26,992 | $ 21,857
Effective tax rate | 13.89% | 13.59% | 12.02%
Texas-New Mexico Power Company |  |  |
Income Taxes [Line Items] |  |  |
Federal income tax at statutory rates | $ 22,560 | $ 15,076 | $ 13,628
Amortization of excess deferred income tax | (9,177) | (9,326) | (9,113)
State income tax, net of federal (benefit) | 2,103 | 1,763 | 1,625
Allocation of tax (benefit) related to stock compensation awards | 26 | (224) | (112)
Non-deductible compensation | 422 | 351 | 1,071
Transaction costs | 1 | (4) | 0
Other | (774) | 276 | (791)
Total income taxes | $ 15,161 | $ 7,912 | $ 6,308
Effective tax rate | 14.11% | 11.02% | 9.71%

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- Definition Amount of difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operation, attributable to expense for award under share-based payment arrangement. Excludes expense determined to be nondeductible upon grant or after for award under share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32687-109319 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 740 -Section 35 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=126970579&loc=d3e23163-113944 + Details
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