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Condensed Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017
Unrealized holding gains (losses) arising during the period, income tax (expense) benefit | $ (91) | $ (2,777) | $ (374) | $ (5,783)
Reclassification adjustment for (gains) losses included in net earnings, income tax expense (benefit) | 126 | 1,629 | 794 | 2,701
Pension liability adjustment, income tax expense (benefit) | (482) | (626) | (962) | (1,252)
Change in fair market value, income tax (expense) benefit | (143) | 40 | (615) | 112
Reclassification adjustment for (gains) losses included in net earnings (loss), income tax expense (benefit) | (12) | (82) | 1 | (125)
PNM |  |  |  |
Unrealized holding gains (losses) arising during the period, income tax (expense) benefit | (91) | (2,777) | (374) | (5,783)
Reclassification adjustment for (gains) losses included in net earnings, income tax expense (benefit) | 126 | 1,629 | 794 | 2,701
Pension liability adjustment, income tax expense (benefit) | $ (482) | $ (626) | $ (962) | $ (1,252)

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- Definition Amount of tax expense (benefit) of reclassification adjustment from accumulated other comprehensive income for unrealized gain (loss) realized upon the sale of available-for-sale securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=114867106&loc=d3e640-108580 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27357-111563 + Details
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