Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Condensed Consolidated Statements of Cash Flows
Net cash provided by (used in) operating activities	$ (5,767)	$ 30,787
Purchase of:
Fixed income securities, available-for-sale	(69,233)	(95,984)
Equity securities	(31,811)	(31,962)
Property and equipment	(1,910)	(1,510)
Other	(2,611)	(4,134)
Proceeds from sale of:
Fixed income securities, available-for-sale	20,414	86,046
Equity securities	38,042	26,347
Other	2,267	154
Proceeds from call or maturity of:
Fixed income securities, available-for-sale	54,890	24,745
Net proceeds from sale (purchase) of short-term investments		(32,537)
Net cash provided by (used in) investing activities	10,048	(28,835)
Cash Flows from Financing Activities
Cash dividends paid	(10,332)	(9,797)
Proceeds from stock option exercises	2,549	2,886
Net cash used in financing activities	(7,783)	(6,911)
Net decrease in cash	(3,502)	(4,959)
Cash at the beginning of the period	46,203	30,140
Cash at the end of the period	$ 42,701	$ 25,181