Exhibit 12.1

COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES

	Years Ended December 31,															Nine Months Ended September 30,
	2013			2012			2011			2010			2009			2014			2013
	(in thousands, except ratios)
Fixed Charges:
Interest expense	$	114,476		$	119,265		$	102,069		$	69,534		$	41,823		$	109,487		$	83,309
Capitalized interest		—			—			—			—			—			—			—
Portion of rental expense which represents interest factor (1)		2,028			1,866			1,676			1,460			640			2,392			1,351
Total Fixed Charges	$	116,504		$	121,131		$	103,745		$	70,994		$	42,463		$	111,879		$	84,660
Earnings available for fixed charges:
Pretax loss from continuing operations		(120,921	)		(190,679	)		(63,227	)		(24,638	)		(48,218	)		(173,334	)		(75,743	)
Distributed equity income of affiliated companies		—			222			39			15			134			—			—
Add: Fixed charges		116,504			121,131			103,745			70,994			42,463			111,879			84,660
Total Earnings available for fixed charges	$	(4,417	)	$	(69,326	)	$	40,557		$	46,371		$	(5,621	)	$	(61,455	)	$	8,917
Earnings for the period were insufficient to cover fixed charges by the following amounts:	$	(120,921	)	$	(190,457	)	$	(63,188	)	$	(24,623	)	$	(48,084	)	$	(120,921	)	$	(75,743	)
Ratio of earnings to fixed charges (2)		NM			NM			NM			NM			NM			NM			NM

(1) Represents the portion of rental expense deemed to be attributable to interest

(2) NM - Not meaningful