Income Taxes (Reconciliation of the Beginning and Ending Amount of Unrecognized Tax Benefits) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Taxes [Abstract]
Unrecognized tax benefits balance at January 1	$ 12,538us-gaap_UnrecognizedTaxBenefits	$ 24,386us-gaap_UnrecognizedTaxBenefits	$ 27,053us-gaap_UnrecognizedTaxBenefits
Increase in gross amounts of tax positions related to prior years	14,699	2,121	9,454
Decrease in gross amounts of tax positions related to prior years	(67)
Increase in gross amounts of tax positions related to current year	1,077	2,622	381
Decrease due to settlements with tax authorities	(32)	(16,721)	(13,099)
Decrease due to lapse in statute of limitations	(6,775)		(20)
Currency translation		130	617
Currency translation	(1,931)
Unrecognized tax benefits balance at December 31	$ 19,509us-gaap_UnrecognizedTaxBenefits	$ 12,538us-gaap_UnrecognizedTaxBenefits	$ 24,386us-gaap_UnrecognizedTaxBenefits

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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

-Glossary Unrecognized Tax Benefit

-URI http://asc.fasb.org/extlink&oid=6527854

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

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-Section 50

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Amount of decrease in unrecognized tax benefits resulting from foreign currency translation.

+ References

No definition available.

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Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period 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)(1)

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Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities.

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-Name Accounting Standards Codification

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Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.

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Amount of increase in unrecognized tax benefits resulting from foreign currency translation.

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Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

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