Employee Benefit Plans (Tables)

9 Months Ended

Sep. 30, 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 September 30,						Nine Months Ended September 30,
	2013			2012			2013			2012
	(In thousands)
Service cost	$	497		$	541		$	1,591		$	1,629
Interest cost	427			508			1,273			1,519
Curtailments	(5,444		)	(2,212		)	(5,444		)	(4,049		)
Amortization of prior service credits	(2,641		)	(2,837		)	(8,121		)	(8,708		)
Amortization of other actuarial losses (gains)	(55		)	(130		)	(53		)	(391		)
Net benefit credit	$	(7,216	)	$	(4,130	)	$	(10,754	)	$	(10,000	)

Pension Benefit Costs

	Three Months Ended September 30,						Nine Months Ended September 30,
	2013			2012			2013			2012
	(In thousands)
Service cost	$	6,672		$	6,156		$	21,162		$	21,062
Interest cost	3,994			3,683			11,796			11,755
Curtailments	47			—			47			324
Expected return on plan assets	(5,848		)	(5,508		)	(17,690		)	(16,523		)
Amortization of prior service costs (credits)	(51		)	273			(152		)	200
Amortization of other actuarial losses	3,617			3,248			12,430			11,019
Net benefit cost	$	8,431		$	7,852		$	27,593		$	27,837