BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Fixed maturity available-for-sale securities, amortized cost	$ 1,563,773	$ 1,570,693
Equity available-for-sale securities, cost	$ 32,548	$ 33,777
Common stock, par value	$ 10	$ 10
Common stock, shares authorized	1,000,000	1,000,000
Common stock, shares issued	250,000	250,000
Common stock, shares outstanding	250,000	250,000