Equity Investments And Membership Interests In Joint Ventures (Tables)

12 Months Ended

Dec. 31, 2012

Equity Method Investments and Joint Ventures [Abstract]

Schedule Of Summarized Financial Information Of Equity Method Investments [Table Text Block]

Summarized financial information of the Company's equity method investees follows:

	December 31
	2012		2011		2010
	(In thousands)
Condensed combined income statement information:
Revenues	$	190,661	$	184,358	$	172,933
Gross profit	15,308		19,495		25,203
Income from operations	8,898		13,180		20,243
Net income	641		6,788		16,015
Condensed combined balance sheet information:
Current assets	$	78,961	$	94,644
Noncurrent assets	387,884		331,848
Total assets	$	466,845	$	426,492
Current liabilities	$	57,403	$	51,674
Noncurrent liabilities	128,489		120,494
Equity	280,690		254,163
Noncontrolling interest	263		161
Total liabilities and equity	$	466,845	$	426,492

Schedule Of Equity Method Investments

Below are the equity method investments reflected in the consolidated balance sheets:

	Knight Hawk			DKRW			DTA			Tenaska			Millennium			Tongue River		Total
	(In thousands)
Balance at January 1, 2010	$	49,603		$	23,589		$	14,076		$	—		$	—		$	—	$	87,268
Investments in affiliates	77,637			—			—			9,768			—			—		87,405
Advances to (distributions from) affiliates, net	(12,639		)	—			4,264			—			—			—		(8,375		)
Equity in comprehensive income (loss)	16,649			(1,628		)	(3,868		)	—			—			—		11,153
Balance at December 31, 2010	$	131,250		$	21,961		$	14,472		$	9,768		$	—		$	—	$	177,451
Investments in affiliates	—			—			—			5,500			25,000			12,989		43,489
Advances to (distributions from) affiliates, net	(16,621		)	—			6,498			—			3,477			—		(6,646		)
Equity in comprehensive income (loss)	20,596			(2,246		)	(4,884		)	(2		)	(2,153		)	—		11,311
Balance at December 31, 2011	$	135,225		$	19,715		$	16,086		$	15,266		$	26,324		$	12,989	$	225,605
Investments in affiliates	—			—			—			—			—			—		—
Advances to (distributions from) affiliates, net	(7,151		)	—			4,335			—			8,798			1,708		7,690
Equity in comprehensive income (loss)	20,989			(4,200		)	(4,959		)	(2		)	(2,908		)	—		8,920
Balance at December 31, 2012	$	149,063		$	15,515		$	15,462		$	15,264		$	32,214		$	14,697	$	242,215
Notes receivable from investees:
Balance at December 31, 2011	$	—		$	30,751		$	—		$	5,059		$	—		$	—	$	35,810
Balance at December 31, 2012	$	—		$	38,680		$	—		$	5,148		$	—		$	—	$	43,828