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Fair Value (Activity Under Level 3, Fair Value Measurements Using Significant Unobservable Inputs By Asset Type) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Transfers in and/or (out) of Level 3 | $ 3,977 |  | $ 1,519 |
Market Value [Member] |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Beginning balance fixed maturities | 445,124 | $ 231,923 | 435,959 | $ 217,138
Total gains or (losses) (realized/unrealized) Included in earnings | (2,766) | 120 | 2,211 | 936
Total gains or (losses) (realized/unrealized) Included in other comprehensive income (loss) | 1,871 | 190 | 2,444 | 425
Purchases, issuances and settlements | 96,765 | 159,847 | 102,838 | 173,581
Transfers in and/or (out) of Level 3 | 3,977 | 1,750 | 1,519 | 1,750
Ending balance | 544,971 | 393,830 | 544,971 | 393,830
The amount of total gains or losses for the period included in earnings (or changes in net assets) attributable to the change in unrealized gains or losses relating to assets still held at the reporting date | 0 | 0 | 0 | 0
Market Value [Member] | Corporate Securities [Member] |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Beginning balance fixed maturities | 437,826 | 220,555 | 428,215 | 210,186
Total gains or (losses) (realized/unrealized) Included in earnings | (2,528) | 624 | 2,330 | 1,346
Total gains or (losses) (realized/unrealized) Included in other comprehensive income (loss) | 1,871 | 190 | 2,444 | 425
Purchases, issuances and settlements | 101,732 | 159,846 | 108,370 | 169,258
Transfers in and/or (out) of Level 3 | 3,977 | 0 | 1,519 | 0
Ending balance | 542,878 | 381,215 | 542,878 | 381,215
The amount of total gains or losses for the period included in earnings (or changes in net assets) attributable to the change in unrealized gains or losses relating to assets still held at the reporting date | 0 | 0 | 0 | 0
Market Value [Member] | Foreign Corporate Securities [Member] |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Beginning balance fixed maturities | 7,298 | 11,368 | 7,744 | 6,952
Total gains or (losses) (realized/unrealized) Included in earnings | (238) | (504) | (119) | (410)
Total gains or (losses) (realized/unrealized) Included in other comprehensive income (loss) | 0 | 0 | 0 | 0
Purchases, issuances and settlements | (4,967) | 1 | (5,532) | 4,323
Transfers in and/or (out) of Level 3 | 0 | 1,750 | 0 | 1,750
Ending balance | 2,093 | 12,615 | 2,093 | 12,615
The amount of total gains or losses for the period included in earnings (or changes in net assets) attributable to the change in unrealized gains or losses relating to assets still held at the reporting date | 0 | 0 | 0 | 0
Fair Value [Member] |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Beginning balance fixed maturities | 2,350 | 1,821 | 2,337 | 0
Total gains or (losses) (realized/unrealized) Included in earnings | 356 | (142) | 369 | (156)
Total gains or (losses) (realized/unrealized) Included in other comprehensive income (loss) | 0 | 32 | 0 | 32
Purchases, issuances and settlements | (2,706) | 1,481 | (2,706) | 3,316
Transfers in and/or (out) of Level 3 | 0 | 0 | 0 | 0
Ending balance | 0 | 3,192 | 0 | 3,192
The amount of total gains or losses for the period included in earnings (or changes in net assets) attributable to the change in unrealized gains or losses relating to assets still held at the reporting date | 0 | 0 | 0 | 0
Fair Value [Member] | Foreign Corporate Securities [Member] |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |
Beginning balance fixed maturities | 2,350 | 1,821 | 2,337 | 0
Total gains or (losses) (realized/unrealized) Included in earnings | 356 | (142) | 369 | (156)
Total gains or (losses) (realized/unrealized) Included in other comprehensive income (loss) | 0 | 32 | 0 | 32
Purchases, issuances and settlements | (2,706) | 1,481 | (2,706) | 3,316
Transfers in and/or (out) of Level 3 | 0 | 0 | 0 | 0
Ending balance | 0 | 3,192 | 0 | 3,192
The amount of total gains or losses for the period included in earnings (or changes in net assets) attributable to the change in unrealized gains or losses relating to assets still held at the reporting date | $ 0 | $ 0 | $ 0 | $ 0

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