EXHIBIT 12.1

Ratio of Earnings to Fixed Charges

(Unaudited)

	For the Year Ended December 31,
$s in thousands	2015		2014		2013		2012		2011
Earnings (as defined):
Earnings before income taxes	$	46,855	$	61,050	$	50,147	$	41,718	$	29,807
Fixed charges		23,556		10,732		856		900		1,635
Earnings	$	70,411	$	71,782	$	51,003	$	42,618	$	31,442
Fixed charges (as defined):
Interest expense	$	23,370	$	10,677	$	828	$	878	$	1,604
Estimated interest within rental expense		186		55		28		22		31
Fixed charges	$	23,556	$	10,732	$	856	$	900	$	1,635
Ratio of earnings to fixed charges		3.0		6.7		59.6		47.3		19.2