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Borrowed Funds - Schedule of Pledged Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Debt Instrument [Line Items]
Loans	$ 10,489,852	$ 10,055,429
Debt securities	1,261,580	827,500
Total assets	14,324,664	13,421,247
FHLB and FRB
Debt Instrument [Line Items]
Loans	7,480,265	7,427,247
Debt securities	964,222	984,515
Total assets	8,444,487	8,411,762
Repurchase agreements
Debt Instrument [Line Items]
Loans	0	0
Debt securities	59,586	85,529
Total assets	59,586	85,529
Total pledged assets
Debt Instrument [Line Items]
Loans	7,480,265	7,427,247
Debt securities	1,023,808	1,070,044
Total assets	$ 8,504,073	$ 8,497,291

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