Retirement And Other Postretirement Benefit Plans (Tables)

9 Months Ended

Sep. 30, 2011

Retirement And Other Postretirement Benefit Plans [Abstract]

Net Periodic Benefit Cost For The Defined Benefit Plans, Pensions

	Three Months Ended September 30,						Nine Months Ended September 30,
	2011			2010			2011			2010
Service cost	$	19		$	899		$	40		$	2,709
Interest cost		1,731			1,741			5,015			5,258
Expected return on plan assets		(1,996	)		(1,875	)		(5,651	)		(5,621	)
Amortization:
Unrecognized net transition asset		(24	)		(23	)		(69	)		(70	)
Unrecognized prior service cost (credit)		2			(287	)		5			(880	)
Unrecognized loss		286			843			844			2,284
Net periodic pension benefit cost	$	18		$	1,298		$	184		$	3,680

Net Periodic Benefit Cost For The Defined Benefit Plans, Other Postretirement Benefit Plans

	Three Months Ended September 30,				Nine Months Ended September 30,
	2011		2010		2011		2010
Interest cost	$	15	$	17	$	44	$	50
Amortization of unrecognized loss		3		—		5		—
Net periodic postretirement benefit cost	$	18	$	17	$	49	$	50