Defined Benefit Pension Plans Defined Benefit Pension Plans (Tables)

9 Months Ended

Sep. 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:

	September 30, 2013		December 31, 2012
	(in thousands)
Assets
Plan assets in other long-term assets	$	231	$	227
Liabilities
Current portion of pension plan liability in wages and benefits payable	3,789		2,899
Long-term portion of pension plan liability	92,607		90,533
Net pension plan benefit liability	$	96,165	$	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 September 30,						Nine Months Ended September 30,
	2013			2012			2013			2012
	(in thousands)
Service cost	$	1,026		$	655		$	3,018		$	2,069
Interest cost	791			887			2,377			2,722
Expected return on plan assets	(79		)	(80		)	(237		)	(247		)
Settlements and other	—			97			(814		)	97
Amortization of actuarial net loss	249			1			746			5
Amortization of unrecognized prior service costs	17			16			51			50
Net periodic benefit cost	$	2,004		$	1,576		$	5,141		$	4,696