Investment Securities - Narrative (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2024 USD ($) security	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Debt Securities, Available-for-sale [Line Items]
Equity securities without readily determinable fair values	$ 65,100	$ 60,000
Upward adjustments of equity securities without readily determinable fair values	0	0
Downward adjustments of equity securities without readily determinable fair values	0	0
Impairment of equity securities without readily determinable fair values	3,730	688	$ 12,158
Income tax expense (benefit)	252,044	222,455	190,873
Pledged securities	$ 6,900,000
Number of securities by a single non-government sponsored issuer exceeding 10% of shareholders' equity | security	0
Investment securities
Debt Securities, Available-for-sale [Line Items]
Income tax expense (benefit)	$ (676,520)	$ 403	$ (5,400)