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Revenue Recognition - Summary of Noninterest Income Segregated By Revenue Streams In-scope and Out-of-scope of Topic 606 (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
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Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017
Noninterest income |  |  |  |
Noninterest Income (in-scope of Topic 606) | $ 2,917 | $ 2,723 | $ 11,437 | $ 10,795
Noninterest Income (out-of-scope of Topic 606) | 371 | 742 | 1,856 | 1,909
Total Noninterest Income | 3,288 | 3,465 | 13,293 | 12,704
Service Charges [Member] |  |  |  |
Noninterest income |  |  |  |
Noninterest Income (in-scope of Topic 606) | 1,219 | 1,177 | 3,712 | 3,609
ATM/Interchange Fees [Member] |  |  |  |
Noninterest income |  |  |  |
Noninterest Income (in-scope of Topic 606) | 622 | 567 | 1,764 | 1,643
Wealth Management Fees [Member] |  |  |  |
Noninterest income |  |  |  |
Noninterest Income (in-scope of Topic 606) | 873 | 787 | 2,561 | 2,233
Tax Refund Processing Fees [Member] |  |  |  |
Noninterest income |  |  |  |
Noninterest Income (in-scope of Topic 606) |  |  | 2,750 | 2,750
Other [Member] |  |  |  |
Noninterest income |  |  |  |
Noninterest Income (in-scope of Topic 606) | $ 203 | $ 192 | $ 650 | $ 560

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- Definition The total amount of noninterest income which may be derived from: (1) fees and commissions; (2) premiums earned; (3) insurance policy charges; (4) the sale or disposal of assets; and (5) other sources not otherwise specified. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.13) -URI http://asc.fasb.org/extlink&oid=114873765&loc=SL114874048-224260 + Details
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- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130543-203045 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130539-203045 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130545-203045 + Details
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