CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS)/INCOME - USD ($) shares in Thousands, $ in Thousands		12 Months Ended
		Dec. 31, 2016		Dec. 31, 2015		Dec. 31, 2014
Net revenues	[1]	$ 966,550		$ 968,612		$ 911,429
Cost of revenues		595,725		584,611		533,862
Gross profit		370,825		384,001		377,567
Selling, general and administrative expenses		108,528		100,256		109,217
Income from operations		262,297		283,745		268,350
Other income, net (See note 21)		11,088		43,456		50,523
Income before income taxes		273,385		327,201		318,873
Income tax expense		330,775		74,675		69,133
Net (loss) income		(57,390)		252,526		249,740
Other comprehensive loss
Foreign currency translation adjustments		(19,018)		(45,428)		(32,381)
Unrealized gains on securities:
Unrealized holding gains arising during period		242		116		5,777
Reclassification adjustment for gains included in net (loss) income		(248)		(6,580)		(4,555)
Unrealized gains on securities, Total		(6)		(6,464)		1,222
Defined benefit pension plans:
Net profit (loss) arising during period		(802)		802		(1,147)
Amortization of prior service cost included in net periodic pension cost		(35)		149		29
Defined Benefit Pension plans, Total		(837)		951		(1,118)
Other comprehensive loss, before tax		(19,328)		(50,941)		(31,553)
Income tax benefits (expenses) related to other comprehensive loss		32		1,576		(388)
Net current-period other comprehensive (loss)/income		(19,296)		(49,365)		(31,941)
Comprehensive (loss) income		$ (76,686)		$ 203,161		$ 217,799
Dividend per share		$ 15.00		$ 0.00		$ 0.00
(LOSS) EARNINGS PER SHARE:
Basic		(0.68)		3.01		2.98
Diluted		$ (0.68)	[2]	$ 3.00	[2]	$ 2.97
Weighted average common shares outstanding:
Basic		84,146		83,982		83,785
Diluted		84,146		84,149		83,971
Net Investment Hedging
Gains (losses) on derivatives:
Gains arising during period						$ 724
Cash flow Hedge
Gains (losses) on derivatives:
Gains arising during period		$ 533

[1] Net revenues are attributed to regions based upon customer location.

[2] Earnings per share for the quarter are computed independently and may not equal the earnings per share computed for the total year.