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FEDERAL HOME LOAN BANK ADVANCEs (Tables) | 12 Months Ended
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Dec. 31, 2018
Banking and Thrift [Abstract] |
Schedule of Federal Home Loan Banks Fiscal Year Maturity | The following table presents contractual maturities by year of the Bank's advances as of December 31, 2018:
($ in thousands) |  | 2019 |  | 2020 |  | 2021 |  | 2022 |  | 2023 and After |  | Total
Fixed rate |  | $ | 125,000 |  |  | $ | 124,000 |  |  | $ | 145,000 |  |  | $ | 46,000 |  |  | $ | 365,000 |  |  | $ | 805,000 |
Variable rate |  | 715,000 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 715,000 |
Total |  | $ | 840,000 |  |  | $ | 124,000 |  |  | $ | 145,000 |  |  | $ | 46,000 |  |  | $ | 365,000 |  |  | $ | 1,520,000 |
Schedule of Federal Home Loan Bank Advances, Financial Data | The following table presents financial data of FHLB advances as of the dates or for the periods indicated:
|  | As of or For the Year Ended December 31,
($ in thousands) |  | 2018 |  | 2017 |  | 2016
Weighted-average interest rate at end of year |  | 2.57 | % |  | 1.60 | % |  | 0.67 | %
Average interest rate during the year |  | 2.15 | % |  | 1.23 | % |  | 0.49 | %
Average balance |  | $ | 1,627,608 |  |  | $ | 1,054,978 |  |  | $ | 1,153,208 |
Maximum amount outstanding at any month-end |  | $ | 2,030,000 |  |  | $ | 1,695,000 |  |  | $ | 1,990,000 |
Balance at end of year |  | $ | 1,520,000 |  |  | $ | 1,695,000 |  |  | $ | 490,000 |

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