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Derivatives (Gains (Losses) in Foreign Currency Translation Adjustment and Foreign Exchange Income) (Details) - Derivative instruments designated as hedging instruments - Net investment hedges - Foreign exchange swap contracts - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
(Losses) gains recognized in AOCI | $ (471) | $ 6,072 | $ (648)
Gains (losses) recognized in foreign exchange income | $ 0 | $ 0 | $ (1,953)

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- Definition Other comprehensive income (loss) on derivatives instrument designated and qualifying in Net Investment Hedge Period Increase (Decrease). + 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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- Definition Total amount of gain (loss) derived from fair value hedges recognized in earnings in the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5624171-113959 + Details
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