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Income Taxes (Reconciliation of the Beginning and Ending Amount of Unrecognized Tax Benefits) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Income Taxes [Abstract] |  |  |
Unrecognized tax benefits balance at January 1 | $ 19,509 | $ 12,538 | $ 24,386
Increase in gross amounts of tax positions related to prior years | 2,315 | 14,699 | $ 2,121
Decrease in gross amounts of tax positions related to prior years | (145) | (67) |
Increase in gross amounts of tax positions related to current year | 79 | 1,077 | $ 2,622
Decrease due to settlements with tax authorities | (42) | (32) | $ (16,721)
Decrease due to lapse in statute of limitations | (90) | (6,775) |
Currency translation |  |  | $ 130
Currency translation | (2,020) | (1,931) |
Unrecognized tax benefits balance at December 31 | $ 19,606 | $ 19,509 | $ 12,538

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- Definition Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Unrecognized Tax Benefit -URI http://asc.fasb.org/extlink&oid=6527854 + Details
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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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319 + Details
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