Income Taxes (Schedule of Unrecognized Tax Benefits) (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2017 |
Dec. 31, 2016 |
Dec. 31, 2015 |
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| Income Tax Disclosure [Abstract] | |||
| Balance at beginning of year | $ 18,000 | $ 13,930 | $ 8,552 |
| Additions for tax positions related to the current year | 8,777 | 4,039 | 4,116 |
| Foreign currency fluctuation | 1,242 | ||
| Additions for tax positions related to previous years | 129 | 1,987 | |
| Subtractions for tax positions related to previous years | (687) | ||
| Reduction of reserve for statute expirations | (15) | (98) | (725) |
| Balance at end of year | $ 28,037 | $ 18,000 | $ 13,930 |
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- References No definition available.
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- Definition Amount of unrecognized tax benefits. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of increase in unrecognized tax benefits resulting from foreign currency translation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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