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Borrowings - Additional Information (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Short-term Debt [Line Items]
Federal Home Loan Bank advances are secured by first and second mortgage loans and mortgage warehouse loans	$ 1,700.0
Available credit lines with various money center banks	1,400.0
Federal Home Loan Bank, Advances, Putable Option
Short-term Debt [Line Items]
Putable advances	$ 500.0	$ 400.0

X

- Definition

Amount of the collateral pledged in support of federal home loan bank advances outstanding.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 942
-SubTopic 470
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480876/942-470-45-1

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-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480848/942-470-50-3

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- Definition

Amount of maximum advances or credit lines available from the Federal Home Loan Bank (FHLB).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
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- Definition

Fair value portion of borrowing from Federal Home Loan Bank (FHLBank).

+ References

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