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