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Other Borrowed Funds (Tables) | 12 Months Ended
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Dec. 31, 2021
Schedule of other borrowed funds | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, |
​ | ​ | 2021 | ​ | 2020 |
​ | ​ | (Dollars in Thousands) |
Federal Home Loan Bank advances—short-term |  | ​ |  |  | ​ |  | ​
Balance at year end | ​ | $ | — | ​ | $ | — | ​
Rate on balance outstanding at year end | ​ |  | — | % |  | — | %
Average daily balance | ​ | $ | — | ​ | $ | 110,776 | ​
Average rate | ​ |  | — | % |  | 1.19 | %
Maximum amount outstanding at any month end | ​ | $ | — | ​ | $ | 292,000 | ​
Federal Home Loan Bank advances—long-term(1) | ​ | ​ | ​ | ​ | ​ | ​ | ​
Balance at year end | ​ | $ | 436,138 | ​ | $ | 436,327 | ​
Rate on balance outstanding at year end | ​ |  | 1.73 | % |  | 1.73 | %
Average daily balance | ​ | $ | 436,225 | ​ | $ | 436,411 | ​
Average rate | ​ |  | 1.71 | % |  | 1.71 | %
Maximum amount outstanding at any month end | ​ | $ | 436,311 | ​ | $ | 436,495 | ​
​
| (1) | Long-term advances at December 31, 2021 and December 31, 2020 consisted of both amortizing and non-amortizing advances. The non-amortizing advances mature in the following increments: $75,000,000 in July 2028, $100,000,000 in March 2033 and $250,000,000 in August 2033 and are callable by the FHLB on a quarterly basis. Two amortizing advances are outstanding at December 31, 2021 in the amounts of $3,033,000 and $8,104,000 and mature in December 2033 and November 2033, respectively. The amortization on the amortizing long-term advances totals approximately $194,000, $199,000, $204,000, $210,000 and $2215,000 for the years ending December 31, 2022, 2023, 2024, 2025 and December 31, 2026, respectively.

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- Definition Tabular disclosure of all borrowed funds not defined anywhere else in the taxonomy. Includes Federal Home Loan Bank borrowings, which are short and long-term fixed borrowings. + References No definition available. + Details
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