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Parent Only Financial Information Parent Only Income Statement (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Condensed Financial Statements, Captions [Line Items] |  |  |
Interest and Dividends on Investments | $ 109,759 | $ 96,503 | $ 84,657
Other Operating Income | 1,477 | 1,324 | 927
Interest Expense | 21,710 | 12,485 | 7,006
Other Operating Expense | 10,430 | 9,076 | 8,752
Provision for Income Taxes | 9,600 | 9,026 | 10,529
Net Income | 37,475 | 36,279 | 29,326
Parent Company |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |
Dividends from Bank Subsidiaries | 14,100 | 13,300 | 12,800
Interest and Dividends on Investments | 49 | 48 | 53
Other Operating Income | 1,006 | 907 | 677
Total Income | 15,155 | 14,255 | 13,530
Interest Expense | 1,024 | 976 | 781
Other Operating Expense | 875 | 1,175 | 958
Total Expense | 1,899 | 2,151 | 1,739
Income Before Income Tax Benefit and Equity in Undistributed Net Income of Subsidiaries | 13,256 | 12,104 | 11,791
Provision for Income Taxes | 466 | 686 | 225
Equity in Undistributed Net Income of Subsidiaries | 23,753 | 23,489 | 17,310
Net Income | $ 37,475 | $ 36,279 | $ 29,326

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