Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Net income	$ 125,608	$ 140,461
Unrealized gains (losses) on investments:
Unrealized holding gains (losses) on investments arising during the period for which an allowance for expected losses has not been recognized	(147,369)	(72,293)
Net realized gains (losses) on disposals and non-credit related impairment losses	(624)	8,394
Net decrease (increase) in expected credit losses	245	0
Other comprehensive income (loss), net of tax	(146,990)	(80,687)
Comprehensive income (loss)	$ (21,382)	$ 59,774