Employee Benefits (Tables)

9 Months Ended

Sep. 30, 2012

Other Postretirement Benefit Plans, Defined Benefit

Defined Benefit Plan Disclosure [Line Items]

Schedule Of Net Periodic Benefit Cost

The net periodic benefit cost recognized for the three, nine and twelve months ended months ended September 30, 2012 and 2011 is made up of the components listed below (in thousands):

	Three Months Ended						Nine Months Ended						Twelve Months Ended
	September 30,						September 30,						September 30,
	2012			2011			2012			2011			2012			2011
Components of net periodic benefit cost:
Service cost	$	1,095		$	747		$	3,284		$	2,241		$	4,031		$	3,131
Interest cost	1,413			1,345			4,238			4,034			5,583			5,700
Expected return on plan assets	(397		)	(455		)	(1,285		)	(1,367		)	(1,741		)	(1,749		)
Amortization of:
Prior service benefit	(1,470		)	(1,482		)	(4,408		)	(4,445		)	(5,890		)	(5,162		)
Net loss (gain)	154			(11		)	461			(30		)	452			(74		)
Net periodic benefit cost	$	795		$	144		$	2,290		$	433		$	2,435		$	1,846

Retirement Income Plan

Defined Benefit Plan Disclosure [Line Items]

Schedule Of Net Periodic Benefit Cost

The net periodic benefit cost recognized for the three, nine and twelve months endedSeptember 30, 2012 and 2011 is made up of the components listed below as determined using the projected unit credit actuarial cost method (in thousands):

	Three Months Ended						Nine Months Ended						Twelve Months Ended
	September 30,						September 30,						September 30,
	2012			2011			2012			2011			2012			2011
Components of net periodic benefit cost:
Service cost	$	2,207		$	1,712		$	6,621		$	5,137		$	8,334		$	6,653
Interest cost	3,389			3,497			10,167			10,491			13,663			13,898
Amendments	—			—			—			—			—			838
Expected return on plan assets	(3,611		)	(3,523		)	(10,832		)	(10,571		)	(14,356		)	(14,038		)
Amortization of:
Net loss	2,839			1,636			8,517			4,908			10,153			5,796
Prior service cost	29			29			87			87			115			115
Net periodic benefit cost	$	4,853		$	3,351		$	14,560		$	10,052		$	17,909		$	13,262