Investment Securities and Certificates of Deposit - Scheduled Maturities of Available-for-Sale Debt Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Investments, Debt and Equity Securities [Abstract]
Due within one year, amortized cost	$ 877,606	$ 813,507
Debt securities, available-for-sale, amortized cost	877,606	813,507
Due within one year, fair value	877,803	813,804
Total, fair value	$ 877,803	$ 813,804