Pension and Other Postretirement Benefits

9 Months Ended

Sep. 30, 2014

Compensation and Retirement Disclosure [Abstract]

Pension and Other Postretirement Benefits

Pension and Other Postretirement Benefits

The components of net periodic benefit cost are as follows (in thousands):

	Pension Benefits						Other Postretirement Benefits
	For the three months ended    September 30,						For the three months ended    September 30,
	2014			2013			2014		2013
Components of net periodic benefit cost:
Service cost	$	1,701		$	1,766		$	1,944	$	2,486
Interest cost	3,316			3,070			7,726		7,200
Expected return on plan assets	(4,553		)	(4,235		)	—		—
Amortization of prior service cost	61			66			307		307
Amortization of net actuarial loss	550			2,434			3,892		4,714
Net periodic benefit cost	$	1,075		$	3,101		$	13,869	$	14,707

	Pension Benefits						Other Postretirement Benefits
	For the nine months ended    September 30,						For the nine months ended    September 30,
	2014			2013			2014		2013
Components of net periodic benefit cost:
Service cost	$	5,103		$	5,298		$	5,832	$	7,458
Interest cost	9,980			9,210			23,178		21,596
Expected return on plan assets	(13,659		)	(12,705		)	—		—
Amortization of prior service cost	183			198			921		921
Amortization of net actuarial loss	1,742			7,302			11,676		14,182
Settlement loss	1,627			—			—		—
Net periodic benefit cost	$	4,976		$	9,303		$	41,607	$	44,157