Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 819	$ 288
Unrealized income (losses) on investments, net of tax of $1,397 and ($5,487) in 2023 and 2022, respectively	3,652	(14,358)
Comprehensive income (loss)	$ 4,471	$ (14,070)