Defined Benefit Pension Plans Defined Benefit Pension Plans (Tables)

6 Months Ended

Jun. 30, 2013

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

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

Amounts recognized on the Consolidated Balance Sheets consist of:

	June 30, 2013		December 31, 2012
	(in thousands)
Assets
Plan assets in other long-term assets	$	226	$	227
Liabilities
Current portion of pension plan liability in wages and benefits payable	3,157		2,899
Long-term portion of pension plan liability	89,948		90,533
Net pension plan benefit liability	$	92,879	$	93,205

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,
	2013			2012			2013			2012
	(in thousands)
Service cost	$	1,011		$	676		$	1,992		$	1,414
Interest cost	786			909			1,586			1,835
Expected return on plan assets	(79		)	(82		)	(158		)	(167		)
Settlements and other	—			—			(814		)	—
Amortization of actuarial net loss	246			2			497			4
Amortization of unrecognized prior service costs	17			17			34			34
Net periodic benefit cost	$	1,981		$	1,522		$	3,137		$	3,120