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Condensed Consolidated Statement of Changes in Equity - 3 months ended Mar. 31, 2016 - USD ($) $ in Thousands | Total | Total PNMR Common Stockholders’ Equity [Member] | Common Stock [Member] | AOCI [Member] | Retained Earnings [Member] | Non-controlling Interest in Valencia [Member] | Public Service Company of New Mexico [Member] | Public Service Company of New Mexico [Member] Total PNMR Common Stockholders’ Equity [Member] | Public Service Company of New Mexico [Member] Common Stock [Member] | Public Service Company of New Mexico [Member] AOCI [Member] | Public Service Company of New Mexico [Member] Retained Earnings [Member] | Public Service Company of New Mexico [Member] Non-controlling Interest in Valencia [Member] | Texas-New Mexico Power Company [Member] | Texas-New Mexico Power Company [Member] Common Stock [Member] | Texas-New Mexico Power Company [Member] Paid-in Capital [Member] | Texas-New Mexico Power Company [Member] Retained Earnings [Member]
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Beginning balance at Dec. 31, 2015 | $ 1,726,220 | $ 1,654,813 | $ 1,166,465 | $ (71,432) | $ 559,780 | $ 71,407 | $ 1,389,340 | $ 1,317,933 | $ 1,236,776 | $ (71,476) | $ 152,633 | $ 71,407 |  |  |  |
Beginning balance TNMP at Dec. 31, 2015 | 1,654,813 |  |  |  |  |  | 1,317,933 |  |  |  |  |  | $ 533,380 | $ 64 | $ 404,166 | $ 129,150
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from stock option exercise | 3,275 | 3,275 | 3,275 |  |  |  |  |  |  |  |  |  |  |  |  |
Awards of common stock | (10,020) | (10,020) | (10,020) |  |  |  |  |  |  |  |  |  |  |  |  |
Excess tax (shortfall) from stock-based payment arrangements | (15) | (15) | (15) |  |  |  |  |  |  |  |  |  |  |  |  |
Stock based compensation expense | 2,653 | 2,653 | 2,653 |  |  |  |  |  |  |  |  |  |  |  |  |
Valencia’s transactions with its owner | (3,999) |  |  |  |  | (3,999) | (3,999) |  |  |  |  | (3,999) |  |  |  |
Net Earnings | 13,965 | 10,678 |  |  | 10,678 | 3,287 | 7,561 | 4,274 |  | 0 | 4,274 | $ 3,287 |  |  |  |
Net earnings | 10,546 |  |  |  |  |  | 4,274 |  |  |  |  |  | 7,456 |  |  | 7,456
Subsidiary preferred stock dividends | (132) | (132) |  |  | (132) |  |  |  |  |  |  |  |  |  |  |
Total other comprehensive income (loss) | (3,366) | (3,366) |  | (3,366) |  |  | (2,669) | (2,669) |  | (2,669) | 0 |  |  |  |  |
Dividends declared on common stock | (17,524) | (17,524) |  |  | (17,524) |  |  |  |  |  |  |  |  |  |  |
Dividends declared on preferred stock |  |  |  |  |  |  | (132) | (132) |  | 0 | (132) |  |  |  |  |
Ending balance at Mar. 31, 2016 | 1,711,057 | $ 1,640,362 | $ 1,162,358 | $ (74,798) | $ 552,802 | $ 70,695 | 1,390,101 | $ 1,319,406 | $ 1,236,776 | $ (74,145) | $ 156,775 | $ 70,695 |  |  |  |
Ending balance TNMP at Mar. 31, 2016 | $ 1,640,362 |  |  |  |  |  | $ 1,319,406 |  |  |  |  |  | $ 540,836 | $ 64 | $ 404,166 | $ 136,606

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