Derivatives (Gains in Foreign Currency Translation Adjustment) (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Derivative instruments designated as hedging instruments \| Net investment hedges \| Foreign exchange contracts
Derivative [Line Items]
Gains recognized in AOCI	$ 2,954	$ 2,960	$ 351	$ 6,745

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.

No definition available.

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