Goodwill and Intangible Assets, Net (Tables)

12 Months Ended

Dec. 31, 2013

Goodwill And Intangible Assets Disclosure [Abstract]

Schedule of Changes in the Carrying Value of Goodwill, IPR&D and Intangible Assets

Changes in the carrying value of goodwill, IPR&D and intangible assets for the years ended December 31, 2013, 2012 and 2011 were as follows:

(in thousands)	Intangible assets			IPR&D			Goodwill
Balance, December 31, 2010	$	2,805		$	7,010		$	3,605
Amortization		(320	)		—			—
Balance, December 31, 2011		2,485			7,010			3,605
Amortization		(320	)		—			—
Balance, December 31, 2012		2,165			7,010			3,605
Amortization		(320	)		—			—
Impairment		—			(810	)		—
Balance, December 31, 2013	$	1,845		$	6,200		$	3,605

Schedule of Expected Amortization Expense for Intangible Assets for the Next Five-Year Period

years, which is the estimated useful life of this technology. Amortization expense is expected to be as follows for the next five-year period:

Years Ended December 31,	(in thousands)
2014	$	320
2015		320
2016		320
2017		320
2018		320