Defined Benefit Pension Plans Defined Benefit Pension Plans (Tables)

9 Months Ended

Sep. 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:

	September 30, 2012			December 31, 2011
	(in thousands)
Plan assets in other long-term assets	$	(473	)	$	(449	)
Current portion of pension plan liability in wages and benefits payable	2,763			2,621
Long-term portion of pension plan liability	63,041			62,449
Net pension plan benefit liability	$	65,331		$	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 September 30,						Nine Months Ended September 30,
	2012			2011			2012			2011
	(in thousands)
Service cost	$	655		$	637		$	2,069		$	1,855
Interest cost	887			947			2,722			2,833
Expected return on plan assets	(80		)	(80		)	(247		)	(243		)
Settlements and termination benefits	97			—			97			—
Amortization of actuarial net loss (gain)	1			14			5			42
Amortization of unrecognized prior service costs	16			18			50			55
Net periodic benefit cost	$	1,576		$	1,536		$	4,696		$	4,542