Pension and Other Postretirement Plans (Tables)

6 Months Ended

Jun. 30, 2013

Pension and Other Postretirement Plans (Tables) [Abstract]

Net Periodic Benefit Cost

		Three Months Ended				Six Months Ended
		June 30,				June 30,
(In thousands)		2013		2012		2013		2012
Pension Benefits
Components of net periodic benefit cost:
Service cost	$	1,911	$	1,920	$	3,840	$	3,743
Interest cost		3,157		3,321		6,343		6,475
Expected return on assets		(4,733)		(4,021)		(9,509)		(7,839)
Amortization of:
Prior service cost		79		114		158		222
Actuarial loss		1,997		2,112		4,012		4,118
Net periodic benefit cost	$	2,411	$	3,446	$	4,844	$	6,719
Postretirement Benefits
Components of net periodic benefit cost:
Service cost	$	591	$	606	$	1,187	$	1,253
Interest cost		962		1,053		1,932		2,178
Expected return on assets		(540)		(407)		(1,084)		(842)
Amortization of:
Transition obligation		1		99		2		206
Prior service cost		27		26		55		54
Actuarial loss		309		581		620		1,201
Net periodic benefit cost	$	1,350	$	1,958	$	2,712	$	4,050