Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Revenues
Net earned premiums	$ 194,843	$ 198,410	$ 574,640	$ 589,327
Net investment income	9,718	11,947	30,344	34,272
Earnings (losses) from partnership investments	4,699	(139)	2,589	1,431
Net realized gains (losses) on investments	669	1,194	(683)	1,513
Change in net unrealized gains on equity investments	7,521	(387)	(5,639)	15,168
Net impairment losses on investments (a)		(123)		(397)
Credit loss benefit (expense)	182		(2,289)
Finance and other service income	4,768	4,371	12,252	12,540
Total revenue	222,400	215,273	611,214	653,854
Expenses
Losses and loss adjustment expenses	97,054	134,966	308,774	383,386
Underwriting, operating and related expenses	68,596	60,845	195,192	182,187
Interest expense	131	22	308	67
Total expenses	165,781	195,833	504,274	565,640
Income before income taxes	56,619	19,440	106,940	88,214
Income tax expense	11,877	3,821	21,694	16,715
Net income	$ 44,742	$ 15,619	$ 85,246	$ 71,499
Earnings per Weighted Average Common Share
Basic (in dollars per share)	$ 2.99	$ 1.02	$ 5.62	$ 4.68
Diluted (in dollars per share)	2.96	1.01	5.58	4.64
Cash dividends paid per common share (in dollars per share)	$ 0.90	$ 0.90	$ 2.70	$ 2.50
Number of shares used in computing earnings per share:
Basic (in shares)	14,907,809	15,220,902	15,085,914	15,194,469
Diluted (in shares)	15,030,277	15,360,908	15,204,155	15,337,331