| **Derivative Instruments and Hedging - Income (Expense from Derivative Instruments (Details) - USD ($) $ in Thousands**                                                      | 9 Months Ended |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|----------------|
||
| Fair Value Hedging [Member] | Designated as Hedging Instrument [Member]                                                                                                      |           |   |
| **Derivative [Line Items]**                                                                                                                                                  |           |   |
| Gain (loss) on derivative                                                                                                                                                    | $ 46           | $ (134) |
| Fair Value Hedging [Member] | Designated as Hedging Instrument [Member] | Selling, General and Administrative Expenses [Member] | Foreign Exchange Contract [Member]         |           |   |
| **Derivative [Line Items]**                                                                                                                                                  |           |   |
| Gain (loss) on derivative                                                                                                                                                    | (981)          | 400 |
| Fair Value Hedging [Member] | Designated as Hedging Instrument [Member] | Selling, General and Administrative Expenses [Member] | Other Contract [Member]                    |           |   |
| **Derivative [Line Items]**                                                                                                                                                  |           |   |
| Gain (loss) on derivative                                                                                                                                                    | 1,027          | (534) |
| Net Investment Hedging [Member] | Not Designated as Hedging Instrument [Member]                                                                                              |           |   |
| **Derivative [Line Items]**                                                                                                                                                  |           |   |
| Gain (loss) on derivative                                                                                                                                                    | 5,274          | 662 |
| Net Investment Hedging [Member] | Not Designated as Hedging Instrument [Member] | Selling, General and Administrative Expenses [Member] | Foreign Exchange Contract [Member] |           |   |
| **Derivative [Line Items]**                                                                                                                                                  |           |   |
| Gain (loss) on derivative                                                                                                                                                    | (838)          | 21 |
| Net Investment Hedging [Member] | Not Designated as Hedging Instrument [Member] | Other Operating Income (Expense) [Member] | Foreign Exchange Contract [Member]             |           |   |
| **Derivative [Line Items]**                                                                                                                                                  |           |   |
| Gain (loss) on derivative                                                                                                                                                    | $ 6,112        | $ 641 |

| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5618551-113959Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (a),(c),(d),(e) -URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624171-113959
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| X                                                                                                                                                                                                                                                                                                                                                                                                           |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - 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.
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| X                                                                                                                                                                                     |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
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| X                                                                                                                                                                  |
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| X                                                                                                                                                                                 |
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| X                                                                                                                                                                  |
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| X                                                                                                                                                        |
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| X                                                                                                                                                                                         |
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| X                                                                                                                                                  |
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| X                                                                                                                                                                     |
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