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Borrowings - FHLB and FRB Advances (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Debt Disclosure [Abstract]
FHLB advances	$ 500,000	$ 0
FHLB advances, interest rate	3.37%	0.00%
Total maximum borrowing capacity with the FHLB	$ 3,655,756	$ 2,973,635
Total maximum borrowing capacity with the FRB	244,802	183,052
Asset Pledged as Collateral
Debt Instrument [Line Items]
Loans and leases receivable	$ 4,466,931	$ 3,594,339

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