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Derivatives (Forward Contracts Not Designated as Hedging Instruments) (Details) - Sep. 30, 2017 - Not Designated as Hedging Instrument [Member] € in Thousands, ¥ in Thousands, ¥ in Thousands, £ in Thousands, PLN in Thousands, MXN in Thousands, BRL in Thousands, AUD in Thousands, $ in Thousands | USD ($) | EUR (€) | CNY (¥) | GBP (£) | AUD | PLN | MXN | BRL | JPY (¥)
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
BRI/EUR 1 [Member] | Short [Member] |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Derivative notional amount | BRL |  |  |  |  |  |  |  | BRL 33,790 |
BRI/EUR 1 [Member] | Long [Member] |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Derivative notional amount |  | € 9,030 |  |  |  |  |  |  |
BRI/EUR 2 [Member] | Short [Member] |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Derivative notional amount | BRL |  |  |  |  |  |  |  | 80,286 |
BRI/EUR 2 [Member] | Long [Member] |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Derivative notional amount | $ | $ 24,430 |  |  |  |  |  |  |  |
BRI/MXN [Member] | Short [Member] |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Derivative notional amount | BRL |  |  |  |  |  |  |  | BRL 953 |
BRI/MXN [Member] | Long [Member] |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Derivative notional amount | MXN |  |  |  |  |  |  | MXN 5,472 |  |
EUR/USD [Member] | Short [Member] |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Derivative notional amount |  | 82,573 |  |  |  |  |  |  |
EUR/USD [Member] | Long [Member] |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Derivative notional amount | $ | 97,985 |  |  |  |  |  |  |  |
EUR/PLN [Member] | Short [Member] |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Derivative notional amount |  | 7,463 |  |  |  |  |  |  |
EUR/PLN [Member] | Long [Member] |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Derivative notional amount | PLN |  |  |  |  |  | PLN 32,000 |  |  |
EUR/JPN [Member] | Short [Member] |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Derivative notional amount |  | 4,040 |  |  |  |  |  |  |
EUR/JPN [Member] | Long [Member] |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Derivative notional amount | ¥ |  |  |  |  |  |  |  |  | ¥ 526,400
EUR/CNY [Member] | Short [Member] |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Derivative notional amount |  | 60,758 |  |  |  |  |  |  |
EUR/CNY [Member] | Long [Member] |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Derivative notional amount | ¥ |  |  | ¥ 474,901 |  |  |  |  |  |
EUR/AUD [Member] | Short [Member] |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Derivative notional amount |  | 11,455 |  |  |  |  |  |  |
EUR/AUD [Member] | Long [Member] |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Derivative notional amount | AUD |  |  |  |  | AUD 17,200 |  |  |  |
EUR/GBP [Member] | Short [Member] |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Derivative notional amount |  | 2,281 |  |  |  |  |  |  |
EUR/GBP [Member] | Long [Member] |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Derivative notional amount | £ |  |  |  | £ 2,000 |  |  |  |  |
PLN/EUR [Member] | Short [Member] |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Derivative notional amount | PLN |  |  |  |  |  | PLN 35,960 |  |  |
PLN/EUR [Member] | Long [Member] |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Derivative notional amount |  | € 8,383 |  |  |  |  |  |  |
JPN/USD [Member] | Short [Member] |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Derivative notional amount | ¥ |  |  |  |  |  |  |  |  | ¥ 40,395
JPN/USD [Member] | Long [Member] |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Derivative notional amount | $ | $ 362 |  |  |  |  |  |  |  |

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- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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