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Income Taxes (Narrative) (Details) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2016 | Sep. 30, 2016
Income Tax Disclosure [Abstract] |  |
U.S. Federal statutory rate (percent) | 35.00% | 35.00%
Federal |  |
Income Taxes Disclosure [Line Items] |  |
Earliest year remaining open for audit and/or settlement in major taxing jurisdictions |  | 2012
State | Minimum |  |
Income Taxes Disclosure [Line Items] |  |
Earliest year remaining open for audit and/or settlement in major taxing jurisdictions |  | 2008
State | Maximum |  |
Income Taxes Disclosure [Line Items] |  |
Earliest year remaining open for audit and/or settlement in major taxing jurisdictions |  | 2011

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