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Basis of Presentation and Summary of Significant Accounting Policies (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2017 | Jun. 30, 2016
Debt Instrument [Line Items] |  |  |  |
Other fee income | $ 1,102 | $ 988 | $ 2,194 | $ 2,082
Depreciation and amortization | $ 23,333 | 22,542 | $ 46,778 | 43,291
Scenario, Adjustment [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Depreciation and amortization |  | 241 |  | 474
Net Income from Discontinued Operations [Member] | Scenario, Adjustment [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Depreciation and amortization |  | $ 28 |  | $ 60

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