Employee Benefit Plans (Tables)

3 Months Ended

Mar. 31, 2013

Pension and Other Postretirement Benefit Expense [Abstract]

Other Postretirement Benefit Costs Table Text Block [Table Text Block]

The following table details the components of other postretirement benefit costs (credits):

	Three Months Ended March 31,
	2013			2012
	(In thousands)
Service cost	$	556		$	549
Interest cost	431			491
Amortization of prior service credits	(2,750		)	(2,995		)
Amortization of other actuarial losses (gains)	77			(90		)
Net benefit credit	$	(1,686	)	$	(2,045	)

Pension Benefit Costs

	Three Months Ended March 31,
	2013			2012
	(In thousands)
Service cost	$	7,700		$	7,596
Interest cost	3,926			3,980
Expected return on plan assets	(5,806		)	(5,538		)
Amortization of prior service credits	(158		)	(36		)
Amortization of other actuarial losses	4,551			3,571
Net benefit cost	$	10,213		$	9,573