Pension and postretirement benefits (Tables)

9 Months Ended

Sep. 30, 2012

Pension Plans, Defined Benefit [Member]

Schedule Of Net Benefit Costs Table Text Block

		Pension Plan				Benefit Restoration Plans
		Quarters ended September 30,				Quarters ended September 30,
(In thousands)		2012		2011		2012		2011
Interest Cost	$	7,495	$	7,784	$	393	$	395
Expected return on plan assets		(9,810)		(10,840)		(526)		(450)
Amortization of net loss		5,426		2,829		323		148
Total net periodic pension cost (benefit)	$	3,111	$	(227)	$	190	$	93

		Pension Plans				Benefit Restoration Plans
		Nine months ended September 30,				Nine months ended September 30,
(In thousands)		2012		2011		2012		2011
Interest Cost	$	22,486	$	23,354	$	1,179	$	1,186
Expected return on plan assets		(29,430)		(32,521)		(1,578)		(1,350)
Amortization of net loss		16,277		8,486		969		443
Total net periodic pension cost (benefit)	$	9,333	$	(681)	$	570	$	279

Other Postretirement Benefit Plans Defined Benefit [Member]

Schedule Of Net Benefit Costs Table Text Block

		Postretirement Benefit Plan
		Quarters ended September 30,				Nine months ended September 30,
(In thousands)		2012		2011		2012		2011
Service cost	$	548	$	504	$	1,642	$	1,512
Interest cost		1,950		2,135		5,851		6,405
Amortization of prior service cost		(50)		(240)		(150)		(720)
Amortization of net loss		540		267		1,621		801
Total net periodic postretirement benefit cost	$	2,988	$	2,666	$	8,964	$	7,998