Condensed Consolidated Statements Of Comprehensive Income (unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013		Mar. 31, 2012
Net income (loss)	$ 2,377		$ (11,142)
Other comprehensive income (loss), net of tax where applicable:
Unrealized foreign currency translation gains (losses)	389		(137)
Change in fair value of available-for-sale investment	157		490
Realized gains of available-for-sale investment reclassified into Other income (expense), net	(561)		0
Net other comprehensive income (loss) related to available-for-sale investment	(404)		490
Unrealized gains on derivatives for the period	9,062		17,789
Net other comprehensive income related to derivatives	14,855		7,894
Actuarial gains (losses) for the period, net of $145 and $281, respectively, of income tax benefit	(1,421)		392
Pension cost amortization	338	[1]	265	[1]
Net other comprehensive income (loss) related to defined benefit pension and severance plans	(1,083)		657
Other comprehensive income (loss), net of tax	13,757		8,904
Comprehensive income (loss)	16,134		(2,238)
Currency hedge portfolio derivatives amounts reclassified to Net Sales [Member]
Derivative (gains) losses reclassified	8,632		(4,381)
Bunker fuel forward contracts amounts reclassified to Cost of Sales [Member]
Derivative (gains) losses reclassified	$ (2,839)		$ (5,514)

[1] * These accumulated other comprehensive income components are included in the computation of net periodic pension cost. See Note 8 for further details.