CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (45,152)	$ 29,365	$ 496,772	$ 412,948
Other comprehensive income (loss):
Unrealized gains (losses) on investments	53,748	(17,686)	61,150	3,358
Unrealized gains (losses) on cash flow hedges	(16,110)	(5,767)	(28,419)	(13,191)
Total unrealized gains (losses)	37,638	(23,453)	32,731	(9,833)
Income tax (expense) benefit	(9,168)	5,702	(7,966)	2,388
Other comprehensive income (loss), net of tax (expense) benefit	28,470	(17,751)	24,765	(7,445)
Total comprehensive income (loss)	$ (16,682)	$ 11,614	$ 521,537	$ 405,503