Pension and Other Post-Employment Benefit Plans (Tables)

3 Months Ended

Mar. 31, 2014

Pension and Other Postretirement Benefit Expense [Abstract]

Components of net periodic benefit cost

The components of net periodic benefit cost for these plans are as follows:

	Three Months Ended March 31,
Post-Employment Benefit Plan Cost	2014			2013			2014			2013
(Amounts in thousands)	Pension Benefits						Other Benefits
Service cost	$	1,075		$	1,318		$	48		$	93
Interest cost	2,812			2,699			283			425
Expected return on plan assets	(3,781		)	(3,890		)	—			—
Amortization of net actuarial losses	1,499			1,992			187			355
Amortization of prior service cost	—			—			(360		)	—
Total net periodic benefit cost	$	1,605		$	2,119		$	158		$	873