Investments - Realized Investment Gains (Losses) (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Available-for-sale securities:
Net realized investment gains (losses)	$ 6,526	$ 1,302	$ (4,280)	$ 3,805
Available-for-sale securities
Available-for-sale securities:
Gross realized gains	1,721	2,062	2,795	4,320
Gross realized losses	(1,366)	(823)	(1,825)	(1,163)
Net realized gains on available-for-sale securities	355	1,239	970	3,157
Equity securities
Available-for-sale securities:
Equity securities	6,170	63	(5,252)	648
Miscellaneous
Available-for-sale securities:
Miscellaneous	$ 1	$ 0	$ 2	$ 0

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Amount of unrealized and realized gain (loss) on investment in debt and equity securities.

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Amount of realized gain on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

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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), excluding other-than-temporary impairment (OTTI).

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Amount of unrealized and realized gain (loss) on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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Amount of gain (loss) included in earnings for investments classified as other.

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