Derivative Instruments - Derivative Instruments in Statement of Operations (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Total gain (loss) from derivative contracts		$ 2,590	$ (8,832)	$ (711)	$ 2,378
Net revenue [Member] | Cash flow Hedges [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Total gain (loss) from derivative contracts		2,892	(934)	7,434	(934)
Other income (expense), net [Member] | Cash flow Hedges [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Total gain (loss) from derivative contracts	[1]	(3,897)	(2,407)	(6,188)	(2,407)
Other income (expense), net [Member] | Balance sheet hedges [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Total gain (loss) from derivative contracts		5,795	(5,491)	2,543	5,719
Other income (expense), net [Member] | Other Derivative [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Total gain (loss) from derivative contracts		$ (2,200)	$ 0	$ (4,500)	$ 0

[1] Balances relate to changes in fair value that are excluded from the Company's assessment of hedge effectiveness.