Pension and Postretirement Benefits (Tables)

3 Months Ended

Mar. 31, 2014

General Discussion Of Pension And Other Postretirement Benefits [Abstract]

Schedule of Defined Benefit Plans Disclosures [Table Text Block]

	Three Months Ended March 31,
					Other
					Postretirement
	Pension Benefits				Benefits
		2014		2013		2014		2013
Service cost	$	734	$	838	$	8	$	13
Interest cost and other		1,542		1,380		54		56
Expected return on plan assets		(1,607)		(1,478)		0		0
Actuarial loss amortization		789		981		6		47
Prior service cost amortization		866		28		0		0
Net periodic benefit cost	$	2,324	$	1,749	$	68	$	116