Derivative Instruments - Outstanding Forward Contracts (Details) ₩ in Thousands, ¥ in Thousands, £ in Thousands, TWD in Thousands, SGD in Thousands, HUF in Thousands, CAD in Thousands, $ in Thousands	Dec. 31, 2016 USD ($)	Dec. 31, 2016 HUF	Dec. 31, 2016 GBP (£)	Dec. 31, 2016 CAD	Dec. 31, 2016 SGD	Dec. 31, 2016 JPY (¥)	Dec. 31, 2016 KRW (₩)	Dec. 31, 2016 TWD	Dec. 31, 2015 USD ($)	Dec. 31, 2015 HUF	Dec. 31, 2015 GBP (£)	Dec. 31, 2015 CAD	Dec. 31, 2015 SGD	Dec. 31, 2015 JPY (¥)	Dec. 31, 2015 KRW (₩)	Dec. 31, 2015 TWD
Designated as Hedging Instrument [Member] | United States of America, Dollars
Derivative [Line Items]
Derivative Asset, Notional Amount	$ 0								$ 16,720
Designated as Hedging Instrument [Member] | Japan, Yen
Derivative [Line Items]
Derivative Asset, Notional Amount	2,960					¥ 342,500			7,605					¥ 942,500
Designated as Hedging Instrument [Member] | Hungary, Forint
Derivative [Line Items]
Derivative Asset, Notional Amount	130	HUF 39,000							1,893	HUF 547,000
Designated as Hedging Instrument [Member] | Singapore, Dollars
Derivative [Line Items]
Derivative Asset, Notional Amount	97				SGD 150				1,425				SGD 2,063
Designated as Hedging Instrument [Member] | Canada, Dollars
Derivative [Line Items]
Derivative Asset, Notional Amount	0			CAD 0					37			CAD 41
Designated as Hedging Instrument [Member] | United Kingdom, Pounds
Derivative [Line Items]
Derivative Asset, Notional Amount	0		£ 0						34		£ 25
Not Designated as Hedging Instrument [Member] | Japan, Yen
Derivative [Line Items]
Derivative Asset, Notional Amount	5,554					¥ 650,000			5,800					¥ 700,000
Not Designated as Hedging Instrument [Member] | Korea (South), Won
Derivative [Line Items]
Derivative Asset, Notional Amount	1,450						₩ 1,750,000		1,187						₩ 1,400,000
Not Designated as Hedging Instrument [Member] | Hungary, Forint
Derivative [Line Items]
Derivative Asset, Notional Amount	1,448	HUF 425,000							857	HUF 250,000
Not Designated as Hedging Instrument [Member] | Singapore, Dollars
Derivative [Line Items]
Derivative Asset, Notional Amount	929				SGD 1,350				1,074				SGD 1,525
Not Designated as Hedging Instrument [Member] | United Kingdom, Pounds
Derivative [Line Items]
Derivative Asset, Notional Amount	1,658		£ 1,350						2,441		£ 1,650
Not Designated as Hedging Instrument [Member] | Taiwan, New Dollars
Derivative [Line Items]
Derivative Asset, Notional Amount	$ 802							TWD 26,000	$ 800							TWD 26,425