Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Cash flows from operating activities
Net cash provided by (used in) operating activities	$ 116,675	$ 153,029
Cash flows from investing activities
Fixed-maturities available for sale	128,072	154,423
Trading securities	0	7,952
Equity securities	4,535	1,839
Fixed-maturities available for sale	223,937	295,707
Trading securities	25,547	8,965
Fixed-maturities available for sale	(514,582)	(481,051)
Equity securities	(5,382)	(38,110)
Short-term investments, net	70,153	(32,311)
Other assets and other invested assets, net	0	2,721
Purchases of property and equipment	(4,075)	(2,073)
Net cash provided by (used in) investing activities	(71,795)	(81,938)
Cash flows from financing activities
Dividends and dividend equivalents paid	(35,354)	(24,095)
Issuance of common stock	331	340
Repurchases of common stock	(18,988)	(8,637)
Credit facility commitment fees paid	(189)	(234)
Change in secured borrowings, net (with terms three months or less)	(7,796)	16,152
Proceeds from secured borrowings (with terms greater than three months)	3,000	3,000
Repayments of secured borrowings (with terms greater than three months)	(5,000)	(28,000)
Net cash provided by (used in) financing activities	(63,996)	(41,474)
Increase (decrease) in cash and restricted cash	(19,116)	29,617
Cash and restricted cash, beginning of period	152,620	94,146
Cash and restricted cash, end of period	$ 133,504	$ 123,763