Pension and Other Postretirement Benefits (Tables)

3 Months Ended

Mar. 31, 2013

Defined Benefit Plan Disclosure [Line Items]

Net Periodic Benefit Cost

NOTE 10. Pension and Other Postretirement Benefits
Components of Net Periodic Benefit Cost
	Three Months Ended March 31,
									Other Postretirement
	Pension Benefits				SERP				Benefits
	2013		2012		2013		2012		2013		2012
Service cost	$	1,333	$	1,201	$	313	$	34	$	337	$	272
Interest cost		1,794		1,776		102		75		217		201
Expected return on plan assets		(2,412)		(2,349)		0		0		0		0
Amortization of prior service cost		6		6		55		28		29		29
Amortization of transition obligation		0		0		0		0		2		28
Amortization of net actuarial (gain) or loss		757		805		56		54		42		16
Net periodic postretirement benefit cost	$	1,478	$	1,439	$	526	$	191	$	627	$	546