Employee Benefit Plans (Notes)

6 Months Ended

Jun. 30, 2012

Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Abstract]

Employee Benefit Plans [Text Block]

12. EMPLOYEE BENEFIT PLANS

The Company has four qualified non-contributory defined benefit pension plans covering a significant majority of its employees and an unfunded plan that provides benefits in excess of amounts allowable under current tax law in the qualified plans. Currently, all qualified plans are closed to new participants. Employee benefit plan liabilities are calculated using actuarial estimates and management assumptions. These estimates are based on historical information, along with certain assumptions about future events. Changes in assumptions, as well as changes in actual experience, could cause the estimates to change.

The net pension and postretirement benefit costs that have been recognized during the stated periods are shown in the following tables:

	Pension						Postretirement
	Three Months Ended June 30,						Three Months Ended June 30,
	2012			2011			2012		2011
Components of Net Periodic Benefit Cost
Service cost	$	2,102		$	1,695		$	227	$	182
Interest cost	4,321			4,522			242		236
Expected return on plan assets	(6,369		)	(6,455		)	—		—
Amortization of prior service cost	327			340			6		22
Amortization of losses	4,394			2,593			156		66
Net periodic benefit cost	$	4,775		$	2,695		$	631	$	506

	Pension						Postretirement
	Six Months Ended June 30,						Six Months Ended June 30,
	2012			2011			2012		2011
Components of Net Periodic Benefit Cost
Service cost	$	4,042		$	3,390		$	437	$	364
Interest cost	8,309			9,044			465		472
Expected return on plan assets	(12,248		)	(12,910		)	—		—
Amortization of prior service cost	629			680			12		44
Amortization of losses	8,451			5,186			299		132
Net periodic benefit cost	$	9,183		$	5,390		$	1,213	$	1,012

In 2012, the Company has no mandatory pension contribution requirements and does not expect to make any discretionary contributions.