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Other Comprehensive Income (Loss) - Reclassifications Adjustment for Gains (Losses) Out of Accumulated Other Comprehensive Income (Detail) - AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent [Member] - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Income taxes | $ 6 | $ 2 | $ (21) | $ 683
NET INCOME | (16) | (8) | 66 | (2,124)
Amount Reclassified from Accumulated Other Comprehensive Income (Loss) [Member] |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Net realized gains (losses) on investments | (22) | (10) | 87 | (2,807)
Income taxes | 6 | 2 | (21) | 683
NET INCOME | $ (16) | $ (8) | $ 66 | $ (2,124)

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- Definition Amount of realized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118939692&loc=d3e27357-111563 + Details
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