Dispositions (Tables)

12 Months Ended

Dec. 31, 2013

Discontinued Operations And Disposal Groups [Abstract]

Revenue and Net Income (Loss) on Disposition

Oman operations, Colombia operations and the Antelope Project have been classified as discontinued operations. Revenue and income (loss) are shown in the table below:

	Year Ended December 31,
	2013			2012			2011
				(in thousands)
Revenue applicable to discontinued operations:
Oman	$	0		$	0		$	0
Colombia		0			0			0
Antelope Project		0			0			6,488
	$	0		$	0		$	6,488
Income (loss) from discontinued operations:
Oman	$	(674	)	$	(12,711	)	$	(11,371	)
Colombia		(4,476	)		0			0
Antelope Project		0			(1,699	)		97,616
	$	(5,150	)	$	(14,410	)	$	86,245