Pension and Severance Plans (Tables)

6 Months Ended

Jun. 30, 2014

Compensation and Retirement Disclosure [Abstract]

Components of net periodic pension cost

The components of net periodic pension cost for these defined benefit plans are as follows:

	For the Three Months Ended June 30,						For the Six Months Ended June 30,
	2014			2013			2014			2013
	(In thousands)
Service cost	$	1,449		$	1,399		$	2,873		$	2,873
Interest cost	794			746			1,573			1,521
Expected return on plan assets	(781		)	(883		)	(1,547		)	(1,794		)
Amortization of transition obligation	—			2			75			4
Amortization of prior service cost	50			49			99			98
Recognized actuarial loss	16			33			33			66
Net periodic pension cost	1,528			1,346			3,106			2,768

Schedule of Korean severance obligation

The balance of our Korean severance obligation consists of the following:

	June 30, 2014		December 31, 2013
	(In thousands)
Current (Accrued expenses)	$	11,794	$	11,197
Non-current (Pension and severance obligations)	140,484		133,935
Total Korean severance obligation	$	152,278	$	145,132