Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Net income	$ 126,412	$ 135,103	$ 407,226	$ 245,613
Other comprehensive income (loss), net of tax (Note 15)
Unrealized holding gains (losses) on investments arising during the period for which an allowance for expected losses has not been recognized	(23,394)	30,839	(106,286)	143,602
Net realized gains (losses) on disposals and non-credit related impairment losses	3,238	10,884	4,490	24,172
Net decrease (increase) in expected credit losses	0	147	725	(2,051)
Other comprehensive income (loss), net of tax	(26,632)	19,808	(111,501)	121,481
Comprehensive income	$ 99,780	$ 154,911	$ 295,725	$ 367,094