FEDERAL HOME LOAN BANK ADVANCES & OTHER BORROWINGS - Other (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
FEDERAL HOME LOAN BANK ADVANCES & OTHER BORROWINGS
Maximum borrowing capacity	$ 494,300	$ 433,000
FHLB advances	60,000
Collateralized pledged	716,900	723,200
Secured borrowings	3,100	4,300
Unsecured federal funds lines
FEDERAL HOME LOAN BANK ADVANCES & OTHER BORROWINGS
Unsecured federal funds lines available	47,500	47,500
FHLB advances	0	0
Federal Reserve Discount Window funds
FEDERAL HOME LOAN BANK ADVANCES & OTHER BORROWINGS
Maximum borrowing capacity	10,000	10,000
FHLB advances	0	0
Collateralized pledged	$ 27,300	$ 14,000

Amount of borrowings as of the balance sheet date from the Federal Home Loan Bank, which are primarily used to cover shortages in the required reserve balance and liquidity shortages.

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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 of maximum advances or credit lines available 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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Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower.

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