Unaudited Quarterly Financial Data (Tables)

12 Months Ended

Dec. 31, 2015

Quarterly Financial Information Disclosure [Abstract]

Unaudited Quarterly Financial Data

The unaudited summarized financial data by quarter for the years ended December 31,2015 and 2014 is presented in the table below:

(dollars in thousands)	Quarter 1		Quarter 2		Quarter 3		Quarter 4
2015:
Net sales	$	248,774	$	253,998	$	259,437	$	265,238
Gross profit	99,534		99,795		108,285		111,217
Selling, general, and administrative expenses	47,399		59,660		58,664		60,993
Operating income	52,135		40,135		49,621		18,224
Net income	30,046		22,638		27,066		9,638
Basic net income per common share	$	0.15	$	0.12	$	0.14	$	0.05
Diluted net income per common share	$	0.15	$	0.11	$	0.14	$	0.05
Basic weighted average shares	195,745,670		195,747,954		196,062,348		196,173,169
Diluted weighted average shares	197,773,850		197,709,082		198,254,808		198,076,031
2014:
Net sales	$	226,247	$	218,654	$	234,770	$	238,089
Gross profit	96,335		84,993		94,226		91,313
Selling, general, and administrative expenses	42,722		46,100		45,419		53,623
Operating income	53,613		38,893		48,807		37,690
Net income	31,153		21,911		27,713		21,154
Basic net income per common share	$	0.16	$	0.11	$	0.14	$	0.11
Diluted net income per common share	$	0.16	$	0.11	$	0.14	$	0.11
Basic weighted average shares	195,720,894		195,733,692		195,743,154		195,743,154
Diluted weighted average shares	197,747,579		197,827,833		197,884,029		197,853,482