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FHLB and Other Borrowed Funds - Maturities of Borrowings with Original Maturities (Detail) $ in Thousands	Dec. 31, 2023 USD ($)
By Contractual Maturity
Borrowed Funds [Line Items]
2024	$ 701,300
2025	100,000
2026	100,000
2027	0
2028	0
Thereafter	400,000
Total	1,301,300
By Call Date
Borrowed Funds [Line Items]
2024	1,101,300
2025	100,000
2026	100,000
2027	0
2028	0
Thereafter	0
Total	$ 1,301,300

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Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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