CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Statement of Comprehensive Income [Abstract]
Net income	$ 608,325	$ 581,391	$ 469,014
Other comprehensive income:
Unrealized gains (losses) on investments	42,604	59,205	(194,157)
Unrealized gains (losses) on cash flow hedges	(30,394)	(34,457)	93,731
Total unrealized gains (losses)	12,210	24,748	(100,426)
Income tax (expense) benefit	(2,967)	(5,982)	24,453
Other comprehensive income (loss), net of tax (expense) benefit	9,243	18,766	(75,973)
Total comprehensive income	$ 617,568	$ 600,157	$ 393,041