BORROWING ARRANGEMENTS (Details) - USD ($) $ in Thousands |
12 Months Ended | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
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Debt Instrument [Line Items] | |||||||||||
Federal funds purchased and repurchase agreements | $ 36,810 | $ 9,498 | |||||||||
FHLB borrowings | 719,065 | 1,017,361 | |||||||||
Federal funds purchased and repurchase agreements: | |||||||||||
Debt Instrument [Line Items] | |||||||||||
Federal funds purchased and repurchase agreements | 36,810 | 9,498 | |||||||||
Average amount outstanding during the period | [1] | 10,880 | 8,120 | ||||||||
Maximum amount outstanding during the period | [2] | $ 36,810 | $ 9,498 | ||||||||
Weighted average interest rate during the period | [3] | 1.40% | 0.20% | ||||||||
Interest rate at end of period | [4] | 2.10% | 0.20% | ||||||||
FHLB borrowings: | |||||||||||
Debt Instrument [Line Items] | |||||||||||
FHLB borrowings | $ 719,065 | $ 1,017,361 | |||||||||
Average amount outstanding during the period | [1] | 720,785 | 1,222,033 | ||||||||
Maximum amount outstanding during the period | [2] | $ 957,231 | $ 1,414,453 | ||||||||
Weighted average interest rate during the period | [3] | 1.80% | 1.20% | ||||||||
Interest rate at end of period | [4] | 2.30% | 1.40% | ||||||||
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