Exhibit 12.1

STATEMENT REGARDING COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES

The following table sets forth our ratio of earnings to fixed charges for the periods indicated on a consolidated basis. You should read these ratios of earnings to fixed charges in connection with our consolidated financial statements, including the notes to those statements, incorporated by reference into this prospectus (amounts in thousands, except ratios).

	Nine Months Ended September 30, 2016			Year Ended December 31,
				2015			2014			2013			2012			2011
Earnings:
Income (Loss) before provision for income taxes	$	(17,104	)	$	(13,384	)	$	(23,407	)	$	(10,745	)	$	(4,150	)	$	5,524
(Income) Loss from equity investees		—			—			(105	)		(133	)		217			760
Distributions from equity investees		—			—			102			197			21			1,442
Plus: Fixed Charges		52,972			64,778			59,677			53,111			46,659			40,009
Total Earnings	$	35,868		$	51,394		$	36,267		$	42,430		$	42,747		$	47,735
Fixed charges:
Interest expense	$	30,966		$	35,732		$	31,261		$	23,767		$	18,022		$	11,900
Estimate of interest component of rental expense		22,006			29,046			28,416			29,344			28,637			28,109
Total Fixed Charges	$	52,972		$	64,778		$	59,677		$	53,111		$	46,659		$	40,009
Ratio of Earnings to Fixed Charges		(A)			(A)			(A)			(A)			(A)			1.19

(A) Earnings were insufficient to cover fixed charges by $17.1 million, $13.4 million, $23.4 million, $10.7 million and $3.9 million for the nine months ended September 30, 2016, and years ended December 31, 2015, 2014, 2013 and 2012, respectively.

In calculating the ratio of earnings to fixed charges, “earnings” means the sum of income before income taxes and fixed charges exclusive of capitalized interest, and “fixed charges” means interest expensed and capitalized, amortized premiums, discounts and capitalized expenses relating to indebtedness and an estimate of the portion of annual rental expense on leases that represents the interest factor.

For the periods indicated above, we did not have any outstanding shares of preferred stock. Therefore, the ratio of earnings to combined fixed charges and preferred stock dividends are identical to the ratios presented in the above table.