Employee Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2011

Employee Benefit Plans

Pension Benefit Costs

	Three Months Ended June 30						Six Months Ended June 30
	2011			2010			2011			2010
	(In thousands)						(In thousands)
Service cost	$	3,926		$	4,062		$	8,245		$	7,935
Interest cost	3,996			3,790			8,127			7,911
Expected return on plan assets	(5,438		)	(5,530		)	(10,906		)	(9,696		)
Amortization of prior service cost	(142		)	43			(95		)	86
Amortization of other actuarial losses	2,235			1,161			4,374			3,566
Net benefit cost	$	4,577		$	3,526		$	9,745		$	9,802

Other Postretirement Benefit Costs

	Three Months Ended June 30						Six Months Ended June 30
	2011			2010			2011			2010
	(In thousands)						(In thousands)
Service cost	$	518		$	308		$	923		$	754
Interest cost	529			394			1,027			1,042
Amortization of prior service credits	(546		)	(679		)	(1,137		)	(1,182		)
Amortization of other actuarial gains	(952		)	(989		)	(1,550		)	(1,459		)
Net benefit credit	$	(451	)	$	(966	)	$	(737	)	$	(845	)