Employee Benefit Plans (Tables)

9 Months Ended

Sep. 30, 2011

Pension Plans

Defined Benefit Plan Disclosure

Schedule of Net Benefit Costs

The components of net pension expense for the Company’s two defined benefit non-contributory pension plans and certain nonqualified supplemental pension plans were:

	Three months ended September 30,						Nine months ended September 30,
(in thousands)	2011			2010			2011			2010
Components of net periodic benefit cost:
Service cost	$	2,293		$	2,144		$	6,879		$	6,430
Interest cost	2,740			2,841			8,220			8,524
Expected long-term return on assets	(3,868		)	(3,229		)	(11,603		)	(9,686		)
Actuarial loss	1,609			1,443			4,826			4,330
Prior service cost amortization	124			124			372			372
Net periodic expense	$	2,898		$	3,323		$	8,694		$	9,970

Postretirement Benefit Plans

Defined Benefit Plan Disclosure

Schedule of Net Benefit Costs

The components of net periodic postretirement benefit expense for the Company’s postretirement benefit plans were:

	Three months ended September 30,						Nine months ended September 30,
(in thousands)	2011			2010			2011			2010
Components of net periodic benefit cost:
Service cost	$	442		$	516		$	1,327		$	1,548
Interest cost	1,111			1,208			3,332			3,625
Expected long-term return on assets	(1,104		)	(996		)	(3,314		)	(2,990		)
Transition amortization	479			479			1,438			1,438
Net periodic expense	$	928		$	1,207		$	2,783		$	3,621