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Income Taxes (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2017 | Sep. 30, 2016 | Dec. 31, 2016
Income Taxes (Textual) [Abstract] |  |  |  |  |
Effective tax rate (percent) | 654.00% | 34.00% | 74.00% | 40.00% |
Undistributed earnings on a book basis for the non-U.S. subsidiaries | $ 13,900 |  | $ 13,900 |  |
Unrecognized deferred tax liability related to undistributed earnings of non-U.S. subsidiaries | 1,200 |  | 1,200 |  |
Total unrecognized tax benefits | 1,600 |  | 1,600 |  |
Accrued interest and penalties | 985 |  | 985 |  | $ 951
Expected additional federal and state tax expense | $ 31,000 |  | $ 31,000 |  |

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- Definition Amount of deferred tax liability not recognized because of the exceptions to comprehensive recognition of deferred taxes related to undistributed earnings of foreign subsidiaries. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6424122&loc=d3e41874-109331 + Details
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