Exhibit 12

STATEMENT REGARDING COMPUTATION OF CONSOLIDATED RATIOS OF EARNINGS/DEFICIENCIES TO FIXED CHARGES

(dollars in thousands)

	Fiscal Year Ended December 31,
	2013			2012			2011			2010			2009			2008
Earnings (loss):
Pre-tax loss from continuing operations before adjustment for loss from equity investee	$	(91,920	)	$	(112,064	)	$	(54,144	)	$	(35,362	)	$	(42,098	)	$	(16,240	)
add: Fixed charges (see below)		678			1,188			1,207			1,207			712			1,115
Pre-tax loss from continuing operations before adjustment for income/loss from equity investees plus fixed charges	$	(91,242	)	$	(110,876	)	$	(52,937	)	$	(34,155	)	$	(41,386	)	$	(15,125	)
Fixed charges:
Interest expense on indebtedness	$	—		$	—		$	—		$	—		$	—		$	872
Interest expense on portion of rent expense representative of interest		678			1,188			1,207			1,207			712			243
Total fixed charges	$	678		$	1,188		$	1,207		$	1,207		$	712		$	1,115
Ratio of earnings to fixed charges		—			—			—			—			—			—
Deficiency of earnings available to cover fixed charges	$	(91,920	)	$	(112,064	)	$	(54,144	)	$	(35,362	)	$	(42,098	)	$	(16,240	)