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Mortgage Servicing Rights (Tables) | 6 Months Ended
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Jun. 30, 2017
Transfers and Servicing [Abstract] |
Changes in the Company's MSRs | Changes in the Company’s MSRs were as follows:
Balance at January 1, 2017 | $ | 26,302 |
Capitalization | 7,194 |
Amortization | (1,670 | )
Balance at June 30, 2017 | $ | 31,826 |
Data and key economic assumptions related to the Company's MSRs | Data and key economic assumptions related to the Company’s MSRs as of June 30, 2017 and December 31, 2016 are as follows:
| June 30, 2017 |  | December 31, 2016
Unpaid principal balance | $ | 3,315,293 |  |  | $ | 2,763,344 |
Weighted-average prepayment speed (CPR) | 8.80 | % |  | 7.34 | %
Estimated impact of a 10% increase | $ | (1,348 | ) |  | $ | (1,034 | )
Estimated impact of a 20% increase | (2,615 | ) |  | (2,010 | )
Discount rate | 9.66 | % |  | 9.64 | %
Estimated impact of a 10% increase | $ | (1,540 | ) |  | $ | (1,368 | )
Estimated impact of a 20% increase | (2,964 | ) |  | (2,629 | )
Weighted-average coupon interest rate | 3.85 | % |  | 3.83 | %
Weighted-average servicing fee (basis points) | 26.06 |  |  | 25.87 |
Weighted-average remaining maturity (in years) | 14.02 |  |  | 11.11 |

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- Definition Schedule of fair value assumption related to mortgage servicing rights. + References No definition available. + Details
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- Definition Tabular disclosure of activity in the balance of servicing assets subsequently measured at amortized cost. Includes, but is not limited to, beginning and ending balances, additions, disposals, and amortization. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 50 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=68078379&loc=d3e122739-111746 + Details
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- References No definition available. + Details
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