Employee Benefit Plans

6 Months Ended

Jun. 30, 2013

Compensation And Retirement Disclosure [Abstract]

Employee Benefit Plans

Note F – Employee Benefit Plans

Net periodic benefit cost included the following components for the three months ended June 30:

	Pension Benefits						Other  Post-retirement Benefits
	2013			2012			2013			2012
	(in thousands)
Service cost	$	4,961		$	3,818		$	—		$	—
Interest cost		22,391			25,125			37			67
Expected return on plan assets		(33,495	)		(32,068	)		—			—
Amortization of prior service credit		(1,892	)		(1,744	)		(239	)		(233	)
Amortization of actuarial loss		21,097			17,740			281			317
Net periodic benefit cost	$	13,062		$	12,871		$	79		$	151

Net periodic benefit cost included the following components for the six months ended June 30:

	Pension Benefits						Other  Post-retirement Benefits
	2013			2012			2013			2012
	(in thousands)
Service cost	$	9,937		$	7,651		$	—		$	—
Interest cost		44,798			50,269			75			134
Expected return on plan assets		(67,013	)		(64,162	)		—			—
Amortization of prior service credit		(3,786	)		(3,492	)		(478	)		(466	)
Amortization of actuarial loss		42,209			35,495			562			634
Net periodic benefit cost	$	26,145		$	25,761		$	159		$	302

Pension benefits also include amounts related to a supplemental retirement plan. During the six months ended June 30, 2013, the Company made a $57.2 million contribution to the pension plan.