CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME /(LOSS) - USD ($) shares in Thousands, $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Net revenues	[1]	$ 231,340	$ 241,255	$ 684,020	$ 728,663
Cost of revenues		143,219	146,672	432,017	453,371
Gross profit		88,121	94,583	252,003	275,292
Selling, general and administrative expenses		27,160	29,526	86,150	77,468
Income from operations		60,961	65,057	165,853	197,824
Interest expense		(3,041)	(839)	(9,633)	(1,984)
Other income		520	5,066	1,478	15,182
Other income (expense), net		(2,521)	4,227	(8,155)	13,198
Income before provision for income taxes		58,440	69,284	157,698	211,022
Income tax expense		9,607	286,513	33,833	316,403
Net income/(loss)		48,833	(217,229)	123,865	(105,381)
Other comprehensive income (loss)
Foreign currency translation adjustments		(1,255)	(391)	5,857	(17,725)
Gains/(losses) on derivatives:
Gain (loss) arising during period on cash flow hedges		342		633
Unrealized gains on securities:
Unrealized holding gains arising during period		301	170	496	217
Reclassification adjustment for gains included in net income		(77)	(1,931)	(112)	(244)
Unrealized gains on securities, Total		224	(1,761)	384	(27)
Defined benefit pension plans:
Net profit (loss) arising during period				6
Amortization of prior service cost included in net periodic pension cost		28	12	60	47
Defined Benefit Pension plans, Total		28	12	66	47
Other comprehensive Income (loss), before tax		(661)	(2,140)	6,940	(17,705)
Income tax benefit (expenses) related to other comprehensive income (loss)		(217)	659	(396)	(54)
Net current-period other comprehensive income (loss)		(878)	(1,481)	6,544	(17,759)
Comprehensive income/(loss)		$ 47,955	$ (218,710)	$ 130,409	$ (123,140)
Dividend per share			$ 15		$ 15
Earnings/(Loss) per share:
Basic		$ 0.59	(2.58)	$ 1.48	(1.25)
Diluted		$ 0.58	$ (2.58)	$ 1.48	$ (1.25)
Weighted average common shares outstanding:
Basic		83,462	84,214	83,692	84,155
Diluted		83,537	84,289	83,741	84,278

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