Assets Manufactured for Internal Use (Tables)

12 Months Ended

Dec. 31, 2014

Assets Manufactured for Internal Use

Schedule of components of assets manufactured for internal use

	December 31,
	2014			2013
	(in thousands)
Internal use assets	$	24,309		$	23,409
Construction in process		3,465			5,263
Total cost		27,774			28,672
Accumulated depreciation		(17,927	)		(15,774	)
Assets manufactured for internal use, net	$	9,847		$	12,898