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Mortgage Servicing Rights (Tables) | 9 Months Ended
--- | ---
Sep. 30, 2023
Other Assets. |
Schedule of estimated future amortization expense for MSRs | ​
​ | ​ | ​ | ​
​ | ​ | Estimated
(dollars in thousands) |  | Amortization
Under one year | ​ | $ | 852
One to two years | ​ | ​ | 757
Two to three years | ​ | ​ | 671
Three to four years | ​ | ​ | 592
Four to five years | ​ | ​ | 523
Schedule of details of the Company's MSRs | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | September 30, | ​ | December 31,
(dollars in thousands) |  | 2023 |  | 2022
Gross carrying amount | ​ | $ | 69,406 | ​ | $ | 69,273
Less: accumulated amortization | ​ | ​ | 63,551 | ​ | ​ | 62,711
Net carrying value | ​ | $ | 5,855 | ​ | $ | 6,562
​ | ​ | ​ | ​ | ​ | ​ | ​
Schedule of changes in amortized MSRs | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended September 30, | ​ | Nine Months Ended September 30,
(dollars in thousands) |  | 2023 |  | 2022 |  | 2023 |  | 2022
Balance at beginning of period | ​ | $ | 6,072 | ​ | $ | 7,152 | ​ | $ | 6,562 | ​ | $ | 8,302
Originations | ​ | ​ | 65 | ​ | ​ | 47 | ​ | ​ | 133 | ​ | ​ | 151
Amortization | ​ | ​ | (282) | ​ | ​ | (333) | ​ | ​ | (840) | ​ | ​ | (1,587)
Balance at end of period | ​ | $ | 5,855 | ​ | $ | 6,866 | ​ | $ | 5,855 | ​ | $ | 6,866
Fair value of amortized MSRs at beginning of period | ​ | $ | 14,557 | ​ | $ | 14,969 | ​ | $ | 15,193 | ​ | $ | 12,243
Fair value of amortized MSRs at end of period | ​ | $ | 14,520 | ​ | $ | 14,945 | ​ | $ | 14,520 | ​ | $ | 14,945
Schedule of quantitative assumptions used in determining lower of cost or fair value of MSRs | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | September 30, 2023 | ​ | December 31, 2022 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | Weighted | ​ | ​ | ​ | ​ | ​ | ​ | Weighted | ​
​ |  | Range | ​ | Average | ​ | Range | ​ | Average | ​
Conditional prepayment rate | ​ | 6.89 | % | - | 11.27 | % | 7.02 | % | 7.02 | % | - | 13.58 | % | 7.11 | %
Life in years (of the MSR) | ​ | 4.26 | ​ | - | 7.25 | ​ | 7.11 | ​ | 3.35 | ​ | - | 7.37 | ​ | 7.20 | ​
Weighted-average coupon rate | ​ | 3.57 | % | - | 5.84 | % | 3.70 | % | 3.55 | % | - | 6.24 | % | 3.68 | %
Discount rate | ​ | 10.36 | % | - | 10.55 | % | 10.52 | % | 10.41 | % | - | 10.54 | % | 10.51 | %

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- Definition Tabular disclosure of all information related to the key inputs and assumptions used in measuring the fair value of assets obtained or liabilities incurred, as the result of a sale of financial assets, relating to the transferor's continuing involvement, if any, at the time of securitization, asset-backed financing arrangement, or similar transfer (including at a minimum, but not limited to, and if applicable, quantitative information about discount rates, expected prepayments including the expected weighted-average life of prepayable financial assets, and anticipated credit losses, including expected static pool losses). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 860 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481326/860-20-50-3 + Details
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