Defined Benefit Pension Plans Defined Benefit Pension Plans (Tables)

6 Months Ended

Jun. 30, 2012

Defined Benefit Pension Plans [Abstract]

Schedule of Amounts Recognized in the Consolidated Balance Sheets [Table Text Block]

Amounts recognized on the Consolidated Balance Sheets consist of:

	June 30, 2012			December 31, 2011
	(in thousands)
Plan assets in other long-term assets	$	(452	)	$	(449	)
Current portion of pension plan liability in wages and benefits payable	2,608			2,621
Long-term portion of pension plan liability	60,822			62,449
Net pension plan benefit liability	$	62,978		$	64,621

Schedule of Net Periodic Pension Benefit Costs [Table Text Block]

Net periodic pension benefit costs for our plans include the following components:

	Three Months Ended June 30,						Six Months Ended June 30,
	2012			2011			2012			2011
	(in thousands)
Service cost	$	676		$	601		$	1,414		$	1,218
Interest cost	909			969			1,835			1,886
Expected return on plan assets	(82		)	(83		)	(167		)	(163		)
Amortization of actuarial net loss (gain)	2			14			4			28
Amortization of unrecognized prior service costs	17			19			34			37
Net periodic benefit cost	$	1,522		$	1,520		$	3,120		$	3,006