Pension and Postretirement Benefits (Tables)

9 Months Ended

Sep. 30, 2014

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
		2014		2013		2014		2013		2014		2013		2014		2013
Service cost	$	716	$	789	$	5	$	9	$	2,186	$	2,355	$	15	$	26
Interest cost and other		1,506		1,394		58		46		4,567		4,172		174		138
Expected return on plan assets		(1,588)		(1,476)		0		0		(4,796)		(4,417)		0		0
Actuarial loss amortization		763		989		16		8		2,311		2,961		48		24
Prior service cost amortization		(21)		23		0		0		830		155		0		0
Net periodic benefit cost	$	1,376	$	1,719	$	79	$	63	$	5,098	$	5,226	$	237	$	188