Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Investments, at fair value:
Fixed maturity securities (amortized cost $3,388,418; $2,973,276)	$ 3,549,810	$ 3,093,275
Equity securities (cost $695,150; $648,282)	803,851	724,751
Short-term investments (cost $376,547; $494,060)	375,609	494,135
Total investments	4,729,270	4,312,161
Cash	348,479	294,398
Receivables:
Premiums	599,070	606,316
Allowance for credit losses on premiums receivable	(10,000)	(1,445)
Premiums receivable, net of allowance for credit losses	589,070	604,871
Accrued investment income	42,985	40,107
Other	10,730	6,464
Total receivables	642,785	651,442
Reinsurance recoverables	48,579	78,774
Allowance for credit losses on reinsurance recoverables	(91)	0
Reinsurance recoverables, net of allowance for credit losses	48,488	78,774
Deferred policy acquisition costs	246,994	233,166
Fixed assets, net	178,923	168,986
Operating lease right-of-use assets	40,554	44,909
Current income taxes	0	7,642
Goodwill	42,796	42,796
Other intangible assets, net	11,322	10,636
Other assets	38,635	44,247
Total assets	6,328,246	5,889,157
Liabilities
Loss and loss adjustment expense reserves	1,991,304	1,921,255
Unearned premiums	1,405,873	1,355,547
Notes payable	372,532	372,133
Accounts payable and accrued expenses	194,421	143,318
Operating lease liabilities	43,825	47,996
Current income taxes	10,426	0
Deferred income taxes	41,132	27,964
Other liabilities	236,136	221,442
Total liabilities	4,295,649	4,089,655
Commitments and contingencies
Shareholders’ equity:
Authorized 70,000 shares; issued and outstanding 55,358; 55,358	98,970	98,828
Retained earnings	1,933,627	1,700,674
Total shareholders’ equity	2,032,597	1,799,502
Total liabilities and shareholders’ equity	$ 6,328,246	$ 5,889,157