Defined Benefit Pension Plans Defined Benefit Pension Plans (Tables)

3 Months Ended

Mar. 31, 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:

	March 31, 2013		December 31, 2012
	(in thousands)
Assets
Plan assets in other long-term assets	$	223	$	227
Liabilities
Current portion of pension plan liability in wages and benefits payable	2,979		2,899
Long-term portion of pension plan liability	87,805		90,533
Net pension plan benefit liability	$	90,561	$	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 March 31,
	2013			2012
	(in thousands)
Service cost	$	981		$	738
Interest cost	800			926
Expected return on plan assets	(79		)	(85		)
Settlements and other	(814		)	—
Amortization of actuarial net loss	251			2
Amortization of unrecognized prior service costs	17			17
Net periodic benefit cost	$	1,156		$	1,598