Pension and Postretirement Benefits (Tables)

6 Months Ended

Jun. 30, 2012

General Discussion Of Pension And Other Postretirement Benefits [Abstract]

Schedule of Defined Benefit Plans Disclosures [Table Text Block]

	Three Months Ended June 30,								Six Months Ended June 30,
					Other								Other
					Postretirement								Postretirement
	Pension Benefits				Benefits				Pension Benefits				Benefits
		2012		2011		2012		2011		2012		2011		2012		2011
Service cost	$	614	$	593	$	5	$	5	$	1,238	$	1,164	$	9	$	10
Interest cost and other		1,457		1,555		71		89		2,927		3,077		142		178
Expected return on plan assets		(1,368)		(1,449)		0		0		(2,743)		(2,873)		0		0
Other amortization, net		717		461		30		31		1,436		921		61		62
Net periodic benefit cost	$	1,420	$	1,160	$	106	$	125	$	2,858	$	2,289	$	212	$	250