Borrowings - Federal Home Loan Bank Advances (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Total borrowing capacity remaining	$ 1,757,702	$ 1,270,240
Collateral securing line of credit	3,014,023	2,673,464
Borrowings	390,964	415,677
FHLB advances
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Advances	$ 0	0
Borrowings		$ 175,000

Amount of advances from the Federal Home Loan Bank (FHLB).

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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

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

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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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