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Investments (Other Than Temporary Impairments by Asset Type) (Details) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2019 USD ($) Securities | Jun. 30, 2018 USD ($) Securities | Jun. 30, 2019 USD ($) Securities | Jun. 30, 2018 USD ($) Securities
Other than Temporary Impairment Losses, Investments [Abstract] |  |  |  |
Other than temporary impairment, number of securities | Securities | 4 | 4 | 4 | 5
Total OTTI losses | $ (998) | $ (745) | $ (998) | $ (1,652)
Portion of OTTI losses recognized from other comprehensive income | (215) | (1,651) | (215) | (1,651)
Net OTTI losses recognized in operations | $ (1,213) | $ (2,396) | $ (1,213) | $ (3,303)
Corporate Securities | Consumer Discretionary |  |  |  |
Other than Temporary Impairment Losses, Investments [Abstract] |  |  |  |
Other than temporary impairment, number of securities | Securities |  |  |  | 1
Total OTTI losses |  |  |  | $ (907)
Portion of OTTI losses recognized from other comprehensive income |  |  |  | 0
Net OTTI losses recognized in operations |  |  |  | $ (907)
Residential Mortgage Backed Securities |  |  |  |
Other than Temporary Impairment Losses, Investments [Abstract] |  |  |  |
Other than temporary impairment, number of securities | Securities | 2 | 3 | 2 | 3
Total OTTI losses | $ 0 | $ (63) | $ 0 | $ (63)
Portion of OTTI losses recognized from other comprehensive income | (215) | (295) | (215) | (295)
Net OTTI losses recognized in operations | $ (215) | $ (358) | $ (215) | $ (358)
Commercial Mortgage Backed Securities |  |  |  |
Other than Temporary Impairment Losses, Investments [Abstract] |  |  |  |
Other than temporary impairment, number of securities | Securities | 1 |  | 1 |
Total OTTI losses | $ (349) |  | $ (349) |
Portion of OTTI losses recognized from other comprehensive income | 0 |  | 0 |
Net OTTI losses recognized in operations | $ (349) |  | $ (349) |
Other Asset Backed Securities |  |  |  |
Other than Temporary Impairment Losses, Investments [Abstract] |  |  |  |
Other than temporary impairment, number of securities | Securities | 1 | 1 | 1 | 1
Total OTTI losses | $ (649) | $ (682) | $ (649) | $ (682)
Portion of OTTI losses recognized from other comprehensive income | 0 | (1,356) | 0 | (1,356)
Net OTTI losses recognized in operations | $ (649) | $ (2,038) | $ (649) | $ (2,038)

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- Definition The amount by which the fair value of an investment is less than the amortized cost basis or carrying amount of that investment at the balance sheet date and the decline in fair value is deemed to be other than temporary, before considering whether or not such amount is recognized in earnings or other comprehensive income. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 8A -URI http://asc.fasb.org/extlink&oid=109979856&loc=SL6284422-111562 + Details
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