Exhibit 12.1

	For the Year Ended December 31,
	2017		2016			2015			2014			2013
Earnings
Income from continuing operations	$	53,095	$	15,118		$	14,601		$	10,718		$	2,451
Add:
Fixed charges		16,867		13,696			10,021			6,975			6,526
Capitalized interest		—		(557	)		(300	)		(303	)		(232	)
Total Earnings	$	69,962	$	28,257		$	24,322		$	17,390		$	8,745
Fixed Charges
Add:
Interest expensed	$	16,777	$	13,053		$	9,639		$	6,591		$	6,214
Capitalized interest		—		557			300			303			232
Estimate of the interest within rental expense		90		86			82			81			80
Total Fixed Charges		16,867		13,696			10,021			6,975			6,526
Preferred stock dividends		1,961		3,565			3,565			3,565			3,565
Redemption of preferred stock		1,767		—			—			—			—
Combined Fixed Charges, Preferred Stock Dividends and Redemption of Preferred Stock	$	20,595	$	17,261		$	13,586		$	10,540		$	10,091
Ratio of Earnings to Fixed Charges, Preferred Stock Dividends and Redemption of Preferred Stock		3.40		1.64			1.79			1.65			0.87