Defined Benefit Pension Plans Defined Benefit Pension Plans (Tables)

6 Months Ended

Jun. 30, 2014

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, 2014		December 31, 2013
	(in thousands)
Assets
Plan assets in other long-term assets	$	1,550	$	1,426
Liabilities
Current portion of pension plan liability in wages and benefits payable	3,377		3,721
Long-term portion of pension plan liability	87,988		88,687
Net pension plan benefit liability	$	89,815	$	90,982

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,
	2014			2013			2014			2013
	(in thousands)
Service cost	$	1,079		$	1,011		$	2,027		$	1,992
Interest cost	897			786			1,790			1,586
Expected return on plan assets	(163		)	(79		)	(320		)	(158		)
Settlements and other	29			—			27			(814		)
Amortization of actuarial net loss	122			246			245			497
Amortization of unrecognized prior service costs	18			17			36			34
Net periodic benefit cost	$	1,982		$	1,981		$	3,805		$	3,137