CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Statement of Comprehensive Income [Abstract]
Net income	$ 118,518	$ 128,812
Other comprehensive income (loss):
Unrealized gains (losses) on investments	35,556	(81,041)
Unrealized gains (losses) on cash flow hedges	(14,999)	52,530
Total unrealized gains (losses)	20,557	(28,511)
Income tax (expense) benefit	(5,020)	6,894
Other comprehensive income (loss), net of tax (expense) benefit	15,537	(21,617)
Total comprehensive income	$ 134,055	$ 107,195