Borrowed Funds - Schedule of Long-Term Borrowings (Details) - Long-term borrowings - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
FHLB advances, net	$ 2,626,660	$ 1,690,013
Subordinated debt, net	647,680	638,362
Total long-term borrowings	3,274,340	2,328,375
Unamortized prepayment penalties and other purchase accounting adjustments	56	209
Deferred issuance costs	$ 4,000	$ 5,200