Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Net income (loss)	$ (29,951)	$ 166,730	$ 110,510	$ 337,687
Unrealized gains (losses) on investments:
Unrealized holding gains (losses) arising during the period for which an allowance for expected losses has not been recognized	185,056	72,000	112,763	150,023
Net decrease (increase) in expected credit losses	(2,198)	0	(2,198)	0
Net unrealized gains (losses) on investments	182,360	70,971	101,673	149,385
Other comprehensive income (loss), net of tax	182,360	70,968	101,673	149,382
Comprehensive income (loss)	152,409	237,698	212,183	487,069
Net foreign currency translation adjustments	0	(3)	0	(3)
Net realized gains (losses) on disposals and non-credit related impairment losses	$ 4,894	$ 1,029	$ 13,288	$ 638