Pension and Postretirement Plans (Tables)

9 Months Ended

Sep. 30, 2013

Pension Plan [Member]

Summary of Net (Benefit) Costs [Table Text Block]

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
(in thousands)	2013		2012		2013		2012
Service cost	$	12,713	$	10,876	$	38,788	$	28,684
Interest cost		14,242		14,828		42,776		44,248
Expected return on assets		(26,817)		(23,779)		(78,606)		(72,301)
Amortization of prior service cost		908		919		2,726		2,775
Recognized actuarial loss		1,797		2,502		5,741		6,574
Net Periodic Cost		2,843		5,346		11,425		9,980
Early retirement programs expense		―		7,486		22,700		8,508
Total Cost	$	2,843	$	12,832	$	34,125	$	18,488

Allocation of the Assets of the Company's Pension Plans [Table Text Block]

	As of
	September 30,			December 31,
	2013			2012
U.S. equities		60	%		64	%
U.S. fixed income		12	%		13	%
International equities		28	%		23	%
		100	%		100	%

Supplemental Executive Retirement Plan (SERP) [Member]

Summary of Net (Benefit) Costs [Table Text Block]

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
(in thousands)	2013		2012		2013		2012
Service cost	$	429	$	367	$	1,288	$	1,100
Interest cost		1,023		1,060		3,069		3,181
Amortization of prior service cost		14		14		41		41
Recognized actuarial loss		711		458		2,133		1,375
Total Cost	$	2,177	$	1,899	$	6,531	$	5,697

Other Postretirement Plans [Member]

Summary of Net (Benefit) Costs [Table Text Block]

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
(in thousands)	2013		2012		2013		2012
Service cost	$	728	$	778	$	2,183	$	2,335
Interest cost		508		684		1,525		2,052
Amortization of prior service credit		(1,306)		(1,402)		(3,972)		(4,206)
Recognized actuarial gain		(504)		(370)		(1,549)		(1,110)
Net Periodic Benefit		(574)		(310)		(1,813)		(929)
Settlement gain		―		―		(3,471)		―
Total Periodic Benefit	$	(574)	$	(310)	$	(5,284)	$	(929)