Investments (Investment Gains and Losses) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Available for sale debt securities:
Realized gains on disposal	$ 888	$ 197	$ 3,379	$ 2,548
Realized losses on disposal	0	0	0	(84)
Held to maturity debt securities:
Realized gains on disposal	2,501	1,246	6,620	2,197
Realized losses on disposal	0	0	0	0
Real estate gains (losses)	2,661	0	2,661	6,888
Other	0	0	0	0
Totals	$ 6,050	$ 1,443	$ 12,660	$ 11,549