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Borrowings - FHLB and FRB Advances (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
FHLB and FRB advances	$ 1,028,352	$ 1,203,207
FHLB advances, interest rate	4.11%	3.91%
FHLB advances
Debt Instrument [Line Items]
Cumulative Amount of Fair Value Hedging Adjustment to Hedged Items	$ (1,600)	$ 3,200
Due March 2025 To March 2028
Debt Instrument [Line Items]
FHLB and FRB advances	950,000
Due March 2028 to June 2029
Debt Instrument [Line Items]
FHLB and FRB advances	$ 80,000

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