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Consolidated Statements of Changes in Equity - TNMP - USD ($) $ in Thousands | Total | Retained Earnings | Texas-New Mexico Power Company | Texas-New Mexico Power Company Common Stock | Texas-New Mexico Power Company Paid-in Capital | Texas-New Mexico Power Company Retained Earnings
--- | --- | --- | --- | --- | --- | ---
Beginning Balance at Dec. 31, 2018 |  |  | $ 674,093 | $ 64 | $ 534,166 | $ 139,863
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Net earnings |  |  | 55,799 |  |  | 55,799
Equity contribution from parent |  |  | 80,000 |  | 80,000 |
Dividends declared on common stock | $ (93,792) | $ (93,792) | (55,265) |  |  | (55,265)
Ending Balance at Dec. 31, 2019 |  |  | 754,627 | 64 | 614,166 | 140,397
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Net earnings |  |  | 58,585 |  |  | 58,585
Equity contribution from parent |  |  | 71,000 |  | 71,000 |
Dividends declared on common stock | (101,591) | (101,591) | (58,534) |  |  | (58,534)
Ending Balance at Dec. 31, 2020 | 2,049,465 |  | 825,678 | 64 | 685,166 | 140,448
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Net earnings |  |  | 63,879 |  |  | 63,879
Equity contribution from parent |  |  | 52,000 |  | 52,000 |
Dividends declared on common stock | (84,333) | $ (84,333) |  |  |  |
Ending Balance at Dec. 31, 2021 | $ 2,167,524 |  | $ 941,557 | $ 64 | $ 737,166 | $ 204,327

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