Exhibit 12.1

STATEMENT OF COMPUTATION OF EARNINGS TO FIXED CHARGES
(Dollars in Thousands)

	Year ended December 31,
	2017				2016				2015			2014			2013
Earnings
Income (loss) before income taxes	$	(134,222	)		$		(399,072	)	$	8,039		$	12,932		$	(37,447	)
Interest and amortization of deferred financing costs		122,077					113,440			98,290			92,926			99,465
Implicit rental interest expense		12,558					12,471			12,182			12,080			10,773
Total earnings	$	413			$		(273,161	)	$	118,511		$	117,938		$	72,791
Fixed Charges
Interest and amortization of deferred financing costs	$	122,077			$		113,440		$	98,290		$	92,926		$	99,465
Capitalized interest		3,422					2,405			500			710			861
Implicit rental interest expense		12,558					12,471			12,182			12,080			10,773
Total fixed charges	$	138,057			$		128,316		$	110,972		$	105,716		$	111,099
Ratio of earnings to fixed charges		0.00		x		*				1.07	x		1.12	x		0.66

* For the year ended December 31, 2016, earnings were insufficient to cover fixed charges by approximately $401.4 million.