Pension and Severance Plans (Tables)

12 Months Ended

Dec. 31, 2014

Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]

Schedule Of Accrued Severance Obligation

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

	For the Year Ended December 31,
	2014			2013			2012
	(In thousands)
Balance at the beginning of year	$	145,373		$	126,762		$	106,715
Provision of severance benefits	17,593			26,550			19,667
Severance payments	(10,160		)	(10,402		)	(8,520		)
(Gain) loss on foreign currency	(5,926		)	2,463			8,900
	146,880			145,373			126,762
Payments remaining with the National Pension Fund	(219		)	(241		)	(249		)
Total severance obligation balance at the end of year	146,661			145,132			126,513
Less current portion of accrued severance obligation (Note 13)	13,226			11,197			9,516
Non-current portion of severance obligation	$	133,435		$	133,935		$	116,997

Schedule of Changes in Projected Benefit Obligations and Fair Value of Plan Assets

The following table summarizes the Plans’ benefit obligations, fair value of the Plans’ assets and the funded status of the Plans at December 31, 2014 and 2013.

	For the Year Ended December 31,
	2014			2013
	(In thousands)
Change in projected benefit obligation:
Projected benefit obligation at beginning of year	$	81,572		$	80,528
Service cost	5,042			5,909
Interest cost	3,051			3,170
Benefits paid	(2,620		)	(1,602		)
Actuarial losses (gains)	3,514			(2,513		)
Acquisition (Note 3)	—			13,017
Divestiture (Note 4)	(14,814		)	—
Effects of curtailment	—			(176		)
Settlement	—			(8,701		)
Foreign exchange gain	(1,736		)	(8,060		)
Projected benefit obligation at end of year	74,009			81,572
Change in plan assets:
Fair value of plan assets at beginning of year	50,304			58,146
Actual gain on plan assets	4,149			5,159
Employer contributions	3,756			1,120
Settlement	—			(8,701		)
Benefits paid	(2,620		)	(1,602		)
Foreign exchange loss	(818		)	(3,818		)
Fair value of plan assets at end of year	54,771			50,304
Funded status of the Plans at end of year	$	(19,238	)	$	(31,268	)

Schedule of Amounts Recognized in Balance Sheet

Schedule of Amounts Recognized in Other Comprehensive Income (Loss)

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

	Prior Service Cost		Actuarial Net (Loss) Gain			Total
	(In thousands)
Balance at December 31, 2012, net of tax	$	188	$	(5,561	)	$	(5,373	)
Amortization included in net periodic pension cost	250		114			364
Net gain arising during period	—		3,996			3,996
Adjustments to unrealized components of defined benefit pension plan included in other comprehensive income	250		4,110			4,360
Balance at December 31, 2013, net of tax	$	438	$	(1,451	)	$	(1,013	)
Amortization included in net periodic pension cost	102		110			212
Net gain arising during period	—		(1,724		)	(1,724		)
Adjustments to unrealized components of defined benefit pension plan included in other comprehensive income	102		(1,614		)	(1,512		)
Balance at December 31, 2014, net of tax	$	540	$	(3,065	)	$	(2,525	)
Estimated amortization of cost to be included in 2015 net periodic pension cost	$	34	$	84		$	118

Schedule of Benefit Obligations in Excess of Fair Value of Plan Assets

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

	December 31,
	2014		2013
	(In thousands)
Plans with underfunded or non-funded projected benefit obligation:
Aggregate projected benefit obligation	$	74,044	$	73,326
Aggregate fair value of plan assets	54,771		41,957
Plans with underfunded or non-funded accumulated benefit obligation:
Aggregate accumulated benefit obligation	11,854		24,877
Aggregate fair value of plan assets	—		—

Components of net periodic pension cost

The following table summarizes net periodic pension costs:

	For the Year Ended December 31,
	2014			2013			2012
	(In thousands)
Components of net periodic pension cost and total pension expense:
Service cost	$	5,042		$	5,909		$	6,362
Interest cost	3,051			3,170			3,270
Expected return on plan assets	(3,094		)	(3,508		)	(3,188		)
Amortization of prior service cost	116			231			291
Recognized actuarial loss	141			142			225
Net periodic pension cost	5,256			5,944			6,960
Curtailment (gain) loss	—			(176		)	1,089
Settlement loss (gain)	97			(120		)	(100		)
Total pension expense	$	5,353		$	5,648		$	7,949

Schedule of Assumptions Used

The following table summarizes the weighted-average assumptions used in computing the net periodic pension cost and projected benefit obligation at December 31, 2014, 2013 and 2012:

	For the Year Ended December 31,
	2014		2013		2012
Discount rate for determining net periodic pension cost	3.9	%	3.9	%	4.2	%
Discount rate for determining benefit obligations at year end	4.2	%	3.9	%	4.0	%
Rate of compensation increase for determining net periodic pension cost	4.1	%	4.1	%	4.5	%
Rate of compensation increase for determining benefit obligations at year end	4.7	%	4.1	%	4.1	%
Expected rate of return on plan assets for determining net periodic pension cost	6.2	%	6.3	%	6.3	%

Schedule of Allocation of Plan Assets

The fair value of our pension plan assets at December 31, 2014, by asset category utilizing the fair value hierarchy as discussed in Note 17, is as follows:

	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Total
	(In thousands)
Cash and cash equivalents	$	5,742	$	—	$	5,742
Equity securities
Foreign securities	3,035		—		3,035
U.S. securities	19,790		—		19,790
	22,825		—		22,825
U.S. fixed income funds	4,321		—		4,321
Bonds
U.S. government bonds	—		2,840		2,840
Foreign treasury notes	10,156		—		10,156
	10,156		2,840		12,996
Taiwan retirement fund	8,632		—		8,632
Other	—		255		255
Total	$	51,676	$	3,095	$	54,771

The fair value of our pension plan assets at December 31, 2013, by asset category utilizing the fair value hierarchy as discussed in Note 17, is as follows:

	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Total
	(In thousands)
Cash and cash equivalents	$	4,542	$	—	$	4,542
Equity securities
Foreign securities	1,950		—		1,950
U.S. securities	18,223		—		18,223
	20,173		—		20,173
U.S. fixed income funds	4,186		—		4,186
Bonds
U.S. government bonds	—		2,087		2,087
Foreign treasury notes	10,374		—		10,374
	10,374		2,087		12,461
Taiwan retirement fund	8,840		—		8,840
Other	—		102		102
Total	$	48,115	$	2,189	$	50,304

Schedule of Expected Benefit Payments

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

	Payments
	(In thousands)
2015	$	1,384
2016	2,019
2017	1,869
2018	2,430
2019	3,710
2020 to 2024	28,694