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Intangible Assets and Goodwill | 12 Months Ended
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Dec. 31, 2017
Goodwill And Intangible Assets Disclosure [Abstract] |
Intangible Assets and Goodwill | (7) INTANGIBLE ASSETS AND GOODWILL The following is a summary of intangible assets:
|  | Gross Carrying Amount |  |  | Accumulated Amortization |  |  | Net Carrying Amount |
|  | (Dollars in thousands) |
As of December 31, 2017 |  |  |  |  |  |  |  |  |  |  |  |
Core deposit intangibles |  | $ | 17,447 |  |  | $ | (8,451 | ) |  | $ | 8,996 |
Customer relationship intangibles |  |  | 5,699 |  |  |  | (3,767 | ) |  |  | 1,932 |
Mortgage servicing intangibles |  |  | 439 |  |  |  | (285 | ) |  |  | 154 |
Total |  | $ | 23,585 |  |  | $ | (12,503 | ) |  | $ | 11,082 |
As of December 31, 2016 |  |  |  |  |  |  |  |  |  |  |  |
Core deposit intangibles |  | $ | 17,447 |  |  | $ | (6,611 | ) |  | $ | 10,836 |
Customer relationship intangibles |  |  | 5,699 |  |  |  | (3,419 | ) |  |  | 2,280 |
Mortgage servicing intangibles |  |  | 473 |  |  |  | (259 | ) |  |  | 214 |
Total |  | $ | 23,619 |  |  | $ | (10,289 | ) |  | $ | 13,330 |
Mortgage servicing intangibles are amortized based on current prepayment assumptions and are adjusted to fair value periodically, if impaired. Fair value is estimated based on the present value of future cash flows over several interest rate scenarios, which are then discounted at risk-adjusted rates. The Company considers portfolio characteristics, contractually specified servicing fees, prepayment assumptions, delinquency rates, late charges, other ancillary revenue, costs to service and other economic factors. When available, fair value estimates and assumptions are compared to observable market data and the recent market activity and actual portfolio experience. Estimated amortization of intangible assets for the next five years, as of December 31, 2017, is as follows (dollars in thousands):
Estimated Amortization |  |  |  |
2018 |  | $ | 2,208 |
2019 |  |  | 2,208 |
2020 |  |  | 2,096 |
2021 |  |  | 1,265 |
2022 |  |  | 950 |
At December 31, 2017, the weighted-average remaining life of all intangible assets was approximately 5.9 years which consisted of customer relationship intangibles with a weighted-average life of 6.0 years, core deposit intangibles with a weighted-average life of 6.0 years and mortgage servicing intangibles with a weighted-average life of 2.0 years based on current prepayment assumptions. The following is a summary of goodwill by business segment:
|  |  |  |  |  |  |  |  |  | Other |  |  | Executive, |  |  |  |  |
|  | Metropolitan |  |  | Community |  |  | Financial |  |  | Operations |  |  |  |  |
|  | Banks |  |  | Banks |  |  | Services |  |  | & Support |  |  | Consolidated |
|  | (Dollars in thousands) |
Year Ended December 31, 2017 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at beginning and end of period |  | $ | 8,078 |  |  | $ | 40,050 |  |  | $ | 5,464 |  |  | $ | 450 |  |  | $ | 54,042 |
Year Ended December 31, 2016 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at beginning and end of period |  | $ | 8,078 |  |  | $ | 40,050 |  |  | $ | 5,464 |  |  | $ | 450 |  |  | $ | 54,042 |

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- Definition The entire disclosure for the aggregate amount of goodwill and a description of intangible assets, which may include (a) for amortizable intangible assets (also referred to as finite-lived intangible assets), the carrying amount, the amount of any significant residual value, and the weighted-average amortization period, (b) for intangible assets not subject to amortization (also referred to as indefinite-lived intangible assets), the carrying amount, and (c) the amount of research and development assets acquired and written off in the period, including the line item in the income statement in which the amounts written off are aggregated, if not readily apparent from the income statement. Also discloses (a) for amortizable intangibles assets in total and by major class, the gross carrying amount and accumulated amortization, the total amortization expense for the period, and the estimated aggregate amortization expense for each of the five succeeding fiscal years, (b) for intangible assets not subject to amortization the carrying amount in total and by major class, and (c) for goodwill, in total and for each reportable segment, the changes in the carrying amount of goodwill during the period (including the aggregate amount of goodwill acquired, the aggregate amount of impairment losses recognized, and the amount of goodwill included in the gain (loss) on disposal of a reporting unit). If any part of goodwill has not been allocated to a reportable segment, discloses the unallocated amount and the reasons for not allocating. For each impairment loss recognized related to an intangible asset (excluding goodwill), discloses: (a) a description of the impaired intangible asset and the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method for determining fair value, (c) the caption in the income statement or the statement of activities in which the impairment loss is aggregated, and (d) the segment in which the impaired intangible asset is reported. For each goodwill impairment loss recognized, discloses: (a) a description of the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method of determining the fair value of the associated reporting unit, and (c) if a recognized impairment loss is an estimate not finalized and the reasons why the estimate is not final. May also disclose the nature and amount of any significant adjustments made to a previous estimate of an impairment loss. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -URI http://asc.fasb.org/topic&trid=2144416 + Details
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