Postretirement Plans (Tables)

9 Months Ended

Sep. 30, 2011

Postretirement Plans [Abstract]

Components Of Net Periodic Benefit Cost

	Nine months ended September 30						Three months ended September 30
Pension Plans	2011			2010			2011			2010
Service cost	$	1,053		$	881		$	351		$	294
Interest cost		2,339			2,252			780			751
Expected return on plan assets		(2,805	)		(2,887	)		(935	)		(963	)
Amortization of prior service costs		182			186			61			62
Recognized net actuarial loss		942			582			314			194
Settlement and curtailment loss		64			11			9
Net periodic benefit cost	$	1,775		$	1,025		$	580		$	338
Net periodic benefit cost included in Earnings from operations	$	1,304		$	847		$	389		$	280
	Nine months ended September 30						Three months ended September 30
Other Postretirement Benefit Plans	2011			2010			2011			2010
Service cost	$	182		$	90		$	110		$	30
Interest cost		377			303			171			101
Expected return on plan assets		(4	)		(4	)		(2	)		(1	)
Amortization of prior service costs		(72	)		(58	)		(24	)		(19	)
Recognized net actuarial loss		142			42			76			14
Settlement and curtailment loss					32
Net periodic benefit cost	$	625		$	405		$	331		$	125
Net periodic benefit cost included in Earnings from operations	$	561		$	376		$	281		$	124