Selected Quarterly Financial Data (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2016

Selected Quarterly Financial Information [Abstract]

Schedule of Quarterly Financial Data

	1st Quarter			2nd Quarter		3rd Quarter		4th Quarter
2016
Net sales	$	222,738		$	236,645	$	250,694	$	232,085
Gross profit		64,220			74,817		80,623		67,263
Net income attributable to common shareholders		(1,733	)		5,752		10,648		1,268
Earnings per share attributable to common shareholders
Basic	$	(0.04	)	$	0.12	$	0.22	$	0.07
Diluted	$	(0.04	)	$	0.12	$	0.21	$	0.07
	1st Quarter			2nd Quarter		3rd Quarter		4th Quarter
2015
Net sales	$	206,182		$	219,453	$	208,888	$	214,381
Gross profit		63,913			69,437		61,636		53,597
Net income attributable to common shareholders		11,132			15,078		2,837		(4,773	)
Earnings per share attributable to common shareholders
Basic	$	0.23		$	0.31	$	0.06	$	(0.10	)
Diluted	$	0.23		$	0.31	$	0.06	$	(0.10	)