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Segment Reporting (Business Segment Assets) (Details) - USD ($) $ in Thousands | Sep. 30, 2019 | Dec. 31, 2018
--- | --- | ---
Segment Reporting Information [Line Items] |  |
Goodwill | $ 66,062 | $ 66,062
Other intangible assets, net | 9,163 | 10,111
Total assets | 4,332,737 | 4,311,698
Banking [Member] |  |
Segment Reporting Information [Line Items] |  |
Goodwill | 48,536 | 48,536
Non-Banking [Member] |  |
Segment Reporting Information [Line Items] |  |
Goodwill | 17,526 | 17,526
Operating Segment [Member] | Banking [Member] |  |
Segment Reporting Information [Line Items] |  |
Goodwill | 48,536 | 48,536
Other intangible assets, net | 122 | 213
Total assets | 4,299,353 | 4,272,439
Operating Segment [Member] | Non-Banking [Member] |  |
Segment Reporting Information [Line Items] |  |
Goodwill | 17,526 | 17,526
Other intangible assets, net | 9,041 | 9,898
Total assets | 35,904 | 35,975
Holding Company and Other [Member] |  |
Segment Reporting Information [Line Items] |  |
Total assets | $ (2,520) | $ 3,284

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