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Other Assets Investments in Limited Partnerships (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Schedule of Equity Method Investments [Line Items] |  |  |
Share of the partnerships’ income | $ 481 | $ 774 | $ (437)
Investment in limited partnerships | 3,215 | 3,193 |
Investment in Historic Development Entities | 578 | 0 |
Aldine Capital Fund, LP |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
Investment in limited partnerships | 1,000 | 1,100 |
Remaining commitment to provide funds to Aldine Capital Fund, LP | 960 |  |
Aldine Capital Fund II, LP |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
Investment in limited partnerships | 2,173 | $ 2,051 |
Remaining commitment to provide funds to Aldine Capital Fund, LP | $ 2,800 |  |

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