Quarterly Financial Data (Tables)

12 Months Ended

Dec. 31, 2014

Quarterly Financial Data [Abstract]

Schedule Of Quarterly Financial Information

			2014 Quarter
(in thousands, except per share data)			1st		2nd		3rd		4th
Sales		$	639,344	$	716,868	$	731,302	$	709,547
Gross profit			51,123		57,751		55,294		55,689
Net income			19,125		22,150		17,156		24,011
Earnings per common share:
	Basic		0.36		0.41		0.32		0.45
	Diluted		0.35		0.41		0.32		0.45
			2013 Quarter
(in thousands, except per share data)			1st		2nd		3rd		4th
Sales		$	542,444	$	607,522	$	599,658	$	756,843
Gross profit			36,834		44,367		45,440		59,843
Net income			11,487		8,457		23,726		67,489
Earnings per common share:
	Basic		0.21		0.16		0.44		1.26
	Diluted		0.21		0.16		0.43		1.24
			2012 Quarter
(in thousands, except per share data)			1st		2nd		3rd		4th
Sales		$	593,417	$	630,031	$	610,769	$	633,933
Gross profit			40,508		45,991		44,780		45,459
Net income			5,598		13,580		19,314		18,115
Earnings per common share:
	Basic		0.10		0.24		0.35		0.33
	Diluted		0.10		0.24		0.34		0.33