Investment in Unconsolidated Entities (Tables)

12 Months Ended

Dec. 31, 2012

Equity Method Investment, Summarized Financial Information [Abstract]

Equity and cost method investments

December 31,		2012		2011
(Dollars in thousands)
Equity method investments:
	Capital contributions, loans and advances	$	21,543	$	25,067
	Cumulative share of income		1,050,618		958,635
	Cumulative share of distributions		(907,509)		(825,261)
			164,652		158,441
Cost method investments			15,269		15,269
Total investments in unconsolidated entities		$	179,921	$	173,710

Equity method investments, summarized financial position

December 31,		2012		2011
(Dollars in thousands)
Assets
	Current	$	477,673	$	435,732
	Due from affiliates		298,707		199,167
	Property and other		1,951,887		1,988,331
		$	2,728,267	$	2,623,230
Liabilities and Equity
	Current liabilities	$	353,044	$	304,742
	Deferred credits		84,672		82,371
	Long-term liabilities		33,856		36,056
	Long-term capital lease obligations		405		234
	Partners’ capital and stockholders’ equity		2,256,290		2,199,827
		$	2,728,267	$	2,623,230

Equity method investments, summarized results of operations

Year Ended December 31,		2012		2011		2010
(Dollars in thousands)
Results of Operations
	Revenues	$	5,825,150	$	5,540,220	$	4,971,525
	Operating expenses		4,381,731		4,301,758		3,567,131
	Operating income		1,443,419		1,238,462		1,404,394
	Other income (expense)		7,190		960		36,168
	Net income	$	1,450,609	$	1,239,422	$	1,440,562