Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Net income (loss)	$ 155,206	$ (29,951)	$ 280,814	$ 110,510
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	64,477	185,056	(82,892)	112,763
Net realized gains (losses) on disposals and non-credit related impairment losses	1,876	4,894	1,252	13,288
Net decrease (increase) in expected credit losses	480	(2,198)	725	(2,198)
Other comprehensive income (loss), net of tax	62,121	182,360	(84,869)	101,673
Comprehensive income	$ 217,327	$ 152,409	$ 195,945	$ 212,183