Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
CASH FLOWS FROM OPERATING ACTIVITIES
Net (loss) income	$ (407,599)	$ 216,176
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	45,699	36,842
Net realized investment losses (gains)	437,024	(100,496)
Increase in premiums receivable	(17,532)	(26,634)
Decrease (increase) in reinsurance recoverables	17,293	(4,217)
Changes in current and deferred income taxes	(116,992)	435
Increase in deferred policy acquisition costs	(15,274)	(3,829)
Increase in loss and loss adjustment expense reserves	160,392	99,711
Increase in unearned premiums	78,141	65,251
(Decrease) increase in accounts payable and accrued expenses	(1,756)	375
Share-based compensation	15	70
Other, net	15,495	33,557
Net cash provided by operating activities	194,906	317,241
Fixed maturity securities available for sale in nature:
Purchases	(777,936)	(574,598)
Sales	365,827	86,022
Calls or maturities	266,801	225,650
Equity securities available for sale in nature:
Purchases	(484,172)	(434,406)
Sales	504,912	466,292
Changes in securities payable and receivable	2,694	32,107
Increase in short-term investments	(32,711)	(1,126)
Purchases of fixed assets	(17,072)	(17,802)
Other, net	2,454	973
Net cash used in investing activities	(169,203)	(216,888)
CASH FLOWS FROM FINANCING ACTIVITIES
Dividends paid to shareholders	(70,321)	(70,044)
Proceeds from stock options exercised	0	215
Payments on finance lease obligations	(937)	(388)
Net cash used in financing activities	(71,258)	(70,217)
Net (decrease) increase in cash	(45,555)	30,136
Cash:
Beginning of the year	335,557	348,479
End of period	290,002	378,615
SUPPLEMENTAL CASH FLOW DISCLOSURE
Interest paid	8,325	8,303
Income taxes paid, net	$ 175	$ 51,209