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Revenue Recognition Revenue (Tables) | 3 Months Ended
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Mar. 31, 2019
Revenue from Contract with Customer [Abstract] |
Disaggregation of Revenue [Table Text Block] | The following table presents the revenue streams that the Company has disaggregated as of the periods indicated:
| Three Months Ended
| March 31, 2019 |  | March 31, 2018
| (Dollars in thousands)
Deposit account fees (inclusive of cash management fees) | $ | 4,406 |  |  | $ | 4,431 |
Interchange fees | 3,735 |  |  | 3,405 |
ATM fees | 666 |  |  | 654 |
Investment management - wealth management and advisory services | 6,069 |  |  | 5,582 |
Investment management - retail investments and insurance revenue | 679 |  |  | 560 |
Merchant processing income | 280 |  |  | 431 |
Other noninterest income | 939 |  |  | 974 |
Total noninterest income in-scope of ASC 606 | 16,774 |  |  | 16,037 |
Total noninterest income out-of-scope of ASC 606 | 4,759 |  |  | 3,826 |
Total noninterest income | 21,533 |  |  | 19,863 |
Contract with Customer, Asset and Liability [Table Text Block] | The following table provides the amount of investment management revenue earned but not received as of the periods indicated:
| March 31, 2019 |  | December 31, 2018
| (Dollars in thousands)
Receivables, included in other assets | $ | 2,089 |  |  | $ | 1,893 |

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- Definition Tabular disclosure of contract balances and changes in contract balances. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130551-203045 + Details
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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: 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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