Pension and Postretirement Benefits (Tables)

9 Months Ended

Sep. 30, 2012

General Discussion Of Pension And Other Postretirement Benefits [Abstract]

Schedule of Defined Benefit Plans Disclosures [Table Text Block]

	Three Months Ended September 30,								Nine Months Ended September 30,
					Other								Other
					Postretirement								Postretirement
	Pension Benefits				Benefits				Pension Benefits				Benefits
		2012		2011		2012		2011		2012		2011		2012		2011
Service cost	$	605	$	606	$	5	$	4	$	1,843	$	1,770	$	14	$	14
Interest cost and other		1,442		1,579		71		88		4,369		4,657		213		266
Expected return on plan assets		(1,358)		(1,440)		0		0		(4,101)		(4,313)		0		0
Other amortization, net		715		529		31		33		2,151		1,450		92		95
Net periodic benefit cost	$	1,404	$	1,274	$	107	$	125	$	4,262	$	3,564	$	319	$	375