Securities - Fair Value and Amortized Cost of Securities (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Fair Value
Pledged securities for borrowing availability at the Federal Reserve	$ 0	$ 851,384
Pledge securities for FHLB borrowings	0	279,136
Pledged securities for derivative instruments	27,660	0
Amortized Cost
Pledged securities for borrowing availability at the Federal Reserve	0	1,032,916
Pledge securities for FHLB borrowings	0	333,613
Pledged securities for derivative instruments	$ 27,391	$ 0

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Pledged Assets Separately Reported, Securities Pledged For Derivative Instruments, At Fair Value

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Pledged Assets Separately Reported, Securities Pledged for Federal Home Loan Bank, at Fair Value 1

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Pledged Assets Separately Reported, Securities Pledged for Federal Reserve, at Fair Value

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Pledged Financial Instruments, Not Separately Reported, Securities For Derivative Instruments

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Pledged Financial Instruments, Not Separately Reported, Securities for Federal Home Loan Bank1

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Pledged Financial Instruments, Not Separately Reported, Securities for Federal Reserve

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