Pensions and Other Employee Benefits Plans (Tables)

6 Months Ended

Jun. 30, 2012

Pensions and Other Employee Benefits Plans [Abstract]

Components of Net Periodic Cost

	Pension Benefits Three Months Ended June 30,						Other Benefits Three Months Ended June 30,
	2012			2011			2012			2011
Service cost	$	3,640		$	3,048		$	152		$	181
Interest cost		6,366			6,327			763			837
Expected return on plan assets		(6,243	)		(5,813	)		—			(4	)
Amortization of net actuarial loss or (gain)		2,967			1,390			(94	)		(197	)
Amortization of prior service credits		(679	)		(679	)		(182	)		(182	)
Net periodic cost		6,051			4,273			639			635
Net periodic cost included in income from discontinued operations		(5,420	)		(3,759	)		(630	)		(643	)
Net periodic cost included in income from continuing operations	$	631		$	514		$	9		$	(8	)
	Pension Benefits Six Months Ended June 30,						Other Benefits Six Months Ended June 30,
	2012			2011			2012			2011
Service cost	$	7,279		$	6,096		$	304		$	362
Interest cost		12,732			12,654			1,526			1,674
Expected return on plan assets		(12,486	)		(11,626	)		—			(8	)
Amortization of net actuarial loss or (gain)		5,935			2,780			(188	)		(394	)
Amortization of prior service credits		(1,359	)		(1,358	)		(364	)		(364	)
Net periodic cost		12,101			8,546			1,278			1,270
Net periodic cost included in income from discontinued operations		(10,839	)		(7,517	)		(1,260	)		(1,286	)
Net periodic cost included in income from continuing operations	$	1,262		$	1,029		$	18		$	(16	)