Selected Quarterly Financial Data (Tables)

12 Months Ended

Dec. 31, 2011

Dec. 31, 2010

Selected Quarterly Financial Data [Abstract]

Selected Quarterly Financial Data

2011 :	Net sales		Gross profit		Pre-tax earnings		Net earnings		Basic earnings per share1
First quarter	$	640,583		333,380		128,811		79,547		0.27
Second quarter		701,730		366,233		150,182		94,112		0.32
Third quarter		726,742		377,381		155,319		96,798		0.33
Fourth quarter		697,804		357,178		140,769		87,472		0.30
Total	$	2,766,859		1,434,172		575,081		357,929		1.21

¹ Note – Amounts may not foot due to rounding difference.

2010 :	Net sales		Gross profit		Pre-tax earnings		Net earnings		Basic earnings per share1
First quarter	$	520,772		265,913		90,669		56,034		0.19
Second quarter		571,183		297,658		112,125		69,167		0.23
Third quarter		603,750		312,648		120,702		74,994		0.25
Fourth quarter		573,766		298,617		107,144		65,161		0.22
Total	$	2,269,471		1,174,836		430,640		265,356		0.90

¹ Note – Amounts may not foot due to rounding difference.