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Supplementary Quarterly Financial Information (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2018

Quarterly Financial Information Disclosure [Abstract]

Schedule of Quarterly Financial Information

The following tables summarize supplementary quarterly financial information (in thousands, except per share data):

		2018
		1^stQuarter				2^ndQuarter				3^rdQuarter				4^thQuarter
Net sales		$	542,832			$	546,430			$	510,580			$	564,118
Gross profit			83,596				90,417				85,134				84,795
Net income			2,811				7,883				5,971				6,108
Basic and diluted earnings per common share:
Basic		$	0.24			$	0.66			$	0.50			$	0.50
Diluted			0.23				0.64				0.47				0.48

		2017
		1^stQuarter				2^ndQuarter				3^rdQuarter				4^thQuarter
Net sales		$	522,760			$	556,082			$	543,275			$	544,770
Gross profit			78,498				85,145				81,457				79,628
Net income (loss)			4,172				2,366				(767	)			(3,176	)
Basic and diluted earnings (loss) per common share:
Basic		$	0.34			$	0.19			$	(0.06	)		$	(0.27	)
Diluted			0.31				0.18				(0.06	)			(0.27	)