Unaudited Quarterly Financial Data (Tables)

12 Months Ended

Dec. 31, 2016

Quarterly Financial Information Disclosure [Abstract]

Unaudited Quarterly Financial Data

The unaudited summarized financial data by quarter for the years ended December 31,2016 and 2015 is presented in the table below:

(dollars in thousands)	Quarter 1		Quarter 2		Quarter 3		Quarter 4
2016:
Net sales	$	279,836	$	286,850	$	287,996	$	295,096
Gross profit	123,232		127,303		133,209		131,939
Selling, general, and administrative expenses	59,756		65,600		65,493		71,912
Operating income	63,476		61,703		35,716		60,027
Net income	37,333		36,624		21,482		34,802
Basic net income per common share	$	0.19	$	0.19	$	0.11	$	0.18
Diluted net income per common share	$	0.19	$	0.18	$	0.11	$	0.17
Basic weighted average shares	196,217,311		196,270,119		196,445,684		196,516,632
Diluted weighted average shares	198,160,465		198,441,315		199,452,308		199,446,875
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