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Tax Years Subject To Examination (Details) | 12 Months Ended
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Dec. 31, 2017
Internal Revenue Service IRS [Member] |
Income Tax Examination [Line Items] |
Earliest Tax Year Open To Examination | 2016
Pennsylvania Tax [Member] |
Income Tax Examination [Line Items] |
Earliest Tax Year Open To Examination | 2014
China Tax [Member] |
Income Tax Examination [Line Items] |
Earliest Tax Year Open To Examination | 2014
Poland [Member] |
Income Tax Examination [Line Items] |
Earliest Tax Year Open To Examination | 2011
United Kingdom Tax [Member] |
Income Tax Examination [Line Items] |
Earliest Tax Year Open To Examination | 2015

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- Definition The earliest tax year still open to audit by the income tax examination authorities + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Details
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- Details
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- Details
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- Details
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- Details
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