Pension and Severance Plans (Tables)

12 Months Ended

Dec. 31, 2011

Compensation and Retirement Disclosure [Abstract]

Schedule Of Accrued Severance Obligation [Table Text Block]

The changes to the balance of our Korean severance accrual are as follows:

	For the Year Ended December 31,
	2011			2010			2009
	(In thousands)
Balance at the beginning of year	$	88,899		$	69,120		$	132,138
Provision of severance benefits	26,705			23,792			18,472
Severance payments	(6,717		)	(6,846		)	(91,413		)
(Gain) loss on foreign currency	(2,172		)	2,833			9,923
	106,715			88,899			69,120
Payments remaining with the Korean National Pension Fund	(239		)	(257		)	(260		)
Total severance obligation balance at the end of year	106,476			88,642			68,860
Less current portion of accrued severance obligation (Note 11)	7,476			6,131			4,466
Non-current portion of severance obligation	$	99,000		$	82,511		$	64,394

Schedule of Changes in Projected Benefit Obligations and Fair Value of Plan Assets [Table Text Block]

The following table sets forth the Plans’ benefit obligations, fair value of the Plans’ assets and the funded status of the Plans at December 31, 2011 and 2010.

	For the Year Ended December 31,
	2011			2010
	(In thousands)
Change in projected benefit obligation:
Projected benefit obligation at beginning of year	$	72,678		$	58,994
Service cost	5,744			5,934
Interest cost	3,274			3,736
Benefits paid	(849		)	(849		)
Actuarial losses (gains)	4,755			(160		)
Plan amendments	25			—
Effects of curtailment	1,016			—
Settlement	(9,563		)	—
Foreign exchange loss	1,817			5,023
Projected benefit obligation at end of year	78,897			72,678
Change in plan assets:
Fair value of plan assets at beginning of year	54,737			40,763
Actual gain on plan assets	815			4,111
Employer contributions	3,629			7,856
Settlement	(9,563		)	—
Benefits paid	(849		)	(849		)
Foreign exchange gain	32			2,856
Fair value of plan assets at end of year	48,801			54,737
Funded status of the Plans at end of year	$	(30,096	)	$	(17,941	)

Schedule of Amounts Recognized in Balance Sheet [Table Text Block]

	December 31,
	2011			2010
	(In thousands)
Amounts recognized in the Consolidated Balance Sheets consist of:
Prepaid benefit cost (included in non-current assets)	$	—		$	3,092
Accrued benefit liability (included in pension and severance obligations)	(30,096		)	(21,033		)
Net amount recognized at year end	$	(30,096	)	$	(17,941	)

Schedule of Amounts Recognized in Other Comprehensive Income (Loss) [Table Text Block]

The following table sets forth, by component, the change in accumulated other comprehensive income related to our Plans:

	Initial Net Obligation			Prior Service Cost			Actuarial Net (Loss) Gain			Total
	(In thousands)
Balance at December 31, 2009, net of tax ($0.8 million)	$	(78	)	$	(556	)	$	(6,346	)	$	(6,980	)
Amortization included in net periodic pension cost, net of tax (less than $0.1 million)	13			295			27			335
Net gain arising during period, net of tax ($0.2 million)	—			—			1,935			1,935
Adjustments to unrealized components of defined benefit pension plan included in other comprehensive income, net of tax ($0.2 million)	13			295			1,962			2,270
Balance at December 31, 2010, net of tax ($1.0 million)	$	(65	)	$	(261	)	$	(4,384	)	$	(4,710	)
Amortization included in net periodic pension cost, net of tax (less than $0.1 million)	7			255			65			327
Net loss arising during period, net of tax ($0.4 million)	—			(25		)	(6,102		)	(6,127		)
Adjustments to unrealized components of defined benefit pension plan included in other comprehensive income, net of tax ($0.4 million)	7			230			(6,037		)	(5,800		)
Balance at December 31, 2011, net of tax ($1.4 million)	$	(58	)	$	(31	)	$	(10,421	)	$	(10,510	)
Estimated amortization of cost to be included in 2012 net periodic pension cost	$	7		$	337		$	212		$	556

Schedule of Benefit Obligations in Excess of Fair Value of Plan Assets [Table Text Block]

Information for pension plans with benefit obligations in excess of plan assets are as follows:

	December 31,
	2011		2010
	(In thousands)
Plans with underfunded or non-funded projected benefit obligation:
Aggregate projected benefit obligation	$	78,897	$	28,863
Aggregate fair value of plan assets	48,801		7,830
Plans with underfunded or non-funded accumulated benefit obligation:
Aggregate accumulated benefit obligation	22,669		18,067
Aggregate fair value of plan assets	—		—

Components of net periodic pension cost

The following table sets forth the net periodic pension costs:

	For the Year Ended December 31,
	2011			2010			2009
	(In thousands)
Components of net periodic pension cost and total pension expense:
Service cost	$	5,744		$	5,934		$	4,381
Interest cost	3,274			3,736			2,959
Expected return on plan assets	(3,119		)	(2,336		)	(1,350		)
Amortization of transition obligation	8			13			64
Amortization of prior service cost	269			295			80
Recognized actuarial loss (gain)	83			27			(17		)
Net periodic pension cost	6,259			7,669			6,117
Curtailment loss (gain)	1,016			—			(528		)
Settlement loss (gain)	565			—			(586		)
Total pension expense	$	7,840		$	7,669		$	5,003

Schedule of Assumptions Used [Table Text Block]

The following table sets forth the weighted-average assumptions used in computing the net periodic pension cost and projected benefit obligation at year end:

	For the Year Ended December 31,
	2011		2010		2009
Discount rate for determining net periodic pension cost	5.2	%	6.4	%	7.9	%
Discount rate for determining benefit obligations at year end	4.2	%	5.2	%	6.4	%
Rate of compensation increase for determining net periodic pension cost	4.6	%	5.7	%	5.7	%
Rate of compensation increase for determining benefit obligations at year end	4.5	%	4.6	%	5.9	%
Expected rate of return on plan assets for determining net periodic pension cost	6.4	%	5.4	%	5.7	%

Schedule of Allocation of Plan Assets [Table Text Block]

The fair value of our pension plan assets at December 31, 2011, by asset category utilizing the fair value hierarchy as discussed in Note 15, is as follows:

	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
	(In thousands)
Cash and cash equivalents	$	3,242	$	—	$	—	$	3,242
Equity securities
Foreign securities	283		—		—		283
U.S. securities	4,474		—		—		4,474
	4,757		—		—		4,757
U.S. fixed income funds	1,627		—		—		1,627
Bonds
Foreign government bonds	2,007		5,192		—		7,199
Foreign treasury notes	23,485		—		—		23,485
	25,492		5,192		—		30,684
Taiwan retirement fund	7,991		—		—		7,991
Other	346		154		—		500
Total	$	43,455	$	5,346	$	—	$	48,801

The fair value of our pension plan assets at December 31, 2010, by asset category utilizing the fair value hierarchy as discussed in Note 15, is as follows:

	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
	(In thousands)
Cash and cash equivalents	$	859	$	—	$	—	$	859
Equity securities
Foreign securities	1,022		—		—		1,022
U.S. securities	9,512		—		—		9,512
	10,534		—		—		10,534
U.S. fixed income funds	2,014		—		—		2,014
Bonds
Foreign government bonds	2,259		6,054		—		8,313
Foreign treasury notes	24,727		—		—		24,727
	26,986		6,054		—		33,040
Taiwan retirement fund	7,830		—		—		7,830
Other	183		277		—		460
Total	$	48,406	$	6,331	$	—	$	54,737

Schedule of Expected Benefit Payments [Table Text Block]

The estimated future benefit payments related to our foreign defined benefit plans are as follows:

2012	$	2,804
2013	4,160
2014	3,614
2015	3,739
2016	4,201
2017 to 2021	33,407