Assets Manufactured for Internal Use (Tables)

12 Months Ended

Dec. 31, 2012

Assets Manufactured for Internal Use

Schedule of components of assets manufactured for internal use

	December 31,
	2012			2011
	(in thousands)
Internal use assets	$	21,904		$	27,503
Construction in progress		1,823			—
Total cost		23,727			27,503
Accumulated depreciation		(13,948	)		(10,526	)
	$	9,779		$	16,977