Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Consolidated Balance Sheets
Fixed maturity securities, amortized cost	$ 1,159,859	$ 1,192,357
Fixed maturity securities, allowance for expected credit losses	2,510
Equity securities, at cost	153,359	151,121
Allowance for expected credit losses	$ 334	$ 578
Common stock par value (in dollars per share)	$ 0.01	$ 0.01
Common stock shares authorized	30,000,000	30,000,000
Common stock shares issued	17,732,359	17,662,779
Treasury stock shares	2,422,862	2,279,570