CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Statement of Comprehensive Income [Abstract]
Net income	$ 31,131	$ 27,401
Other comprehensive income (loss):
Unrealized appreciation (depreciation) of available-for-sale securities	26,476	(93,094)
Reclassification adjustment for realized losses included in net income	44	0
Income tax effect	(6,295)	22,418
Other comprehensive income (loss), net of tax	20,225	(70,676)
Comprehensive income (loss)	51,356	(43,275)
Comprehensive (income) loss attributable to noncontrolling interests	(7)	(11)
Comprehensive income (loss) available to common shareholders	$ 51,349	$ (43,286)