Revision of Prior Period Amounts (Tables)

12 Months Ended

Dec. 31, 2011

Text Block [Abstract]

Revision of prior period amounts

Consolidated Balance Sheet — December 31, 2010
				As previously
	(Dollars in thousands)			reported (1)			Adjustment			Revised
	Cash and cash equivalents		$	368,134		$	(26,451	)	$	341,683
	Total current assets			1,596,675			(26,451	)		1,570,224
	Total assets			7,722,568			(26,451	)		7,696,117
	Accounts payable			344,355			(26,451	)		317,904
	Total current liabilities			812,223			(26,451	)		785,772
	Total liabilities and equity			7,722,568			(26,451	)		7,696,117
Consolidated Statement of Cash Flows — Year Ended December 31, 2010
				As previously
	(Dollars in thousands)			reported (1)			Adjustment			Revised
	Change in Accounts payable		$	(4,016	)	$	(43,743	)	$	(47,759	)
	Change in Other assets and liabilities			95,470			(1,995	)		93,475
	Cash flows from operating activities			1,121,945			(45,738	)		1,076,207
	Cash used for additions to property, plant and equipment			(755,032	)		15,810			(739,222	)
	Cash flows used in investing activities			(1,223,848	)		15,810			(1,208,038	)
	Net increase (decrease) in cash
		and cash equivalents		(302,858	)		(29,928	)		(332,786	)
Consolidated Statement of Cash Flows — Year Ended December 31, 2009
				As previously
	(Dollars in thousands)			reported (1)			Adjustment			Revised
	Change in Accounts payable		$	29,646		$	(6,548	)	$	23,098
	Change in Other assets and liabilities			(44,896	)		1,308			(43,588	)
	Cash flows from operating activities			1,102,594			(5,240	)		1,097,354
	Cash used for additions to property, plant and equipment			(671,165	)		13,348			(657,817	)
	Cash flows used in investing activities			(781,446	)		13,348			(768,098	)
	Net increase (decrease) in cash
		and cash equivalents		(106,317	)		8,108			(98,209	)

• In Current Report on Form 8-K filed on November 16, 2011.