Defined Benefit Pension Plans Defined Benefit Pension Plans (Tables)

3 Months Ended

Mar. 31, 2015

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, 2015		December 31, 2014
	(in thousands)
Assets
Plan assets in other long-term assets	$	481	$	567
Liabilities
Current portion of pension plan liability in wages and benefits payable	3,833		4,552
Long-term portion of pension plan liability	91,652		101,432
Net pension plan benefit liability	$	95,004	$	105,417

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,
	2015			2014
	(in thousands)
Service cost	$	1,089		$	948
Interest cost	620			893
Expected return on plan assets	(136		)	(157		)
Settlements and other	(1		)	(2		)
Amortization of actuarial net loss	497			123
Amortization of unrecognized prior service costs	15			18
Net periodic benefit cost	$	2,084		$	1,823