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CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2012 | Sep. 30, 2011 | Sep. 30, 2012 | Sep. 30, 2011
Net sales | $ 479,859 | $ 476,881 | $ 1,463,420 | $ 1,357,768
Cost of sales | 285,019 | 295,349 | 862,578 | 812,697
Gross profit | 194,840 | 181,532 | 600,842 | 545,071
Selling, general and administrative expenses | 107,167 | 107,296 | 332,431 | 313,485
Restructuring expenses | 7,085 | 2,931 | 14,604 | 2,931
Operating income | 80,588 | 71,305 | 253,807 | 228,655
Other income (expense) - net | 132 | (441) | 19 | (1,001)
Interest expense | 10,536 | 7,763 | 31,734 | 20,937
Income before income taxes | 70,184 | 63,101 | 222,092 | 206,717
Provision for income taxes | 20,057 | 14,765 | 65,443 | 60,248
Net income | $ 50,127 | $ 48,336 | $ 156,649 | $ 146,469
Basic earnings per common share | $ 0.60 | $ 0.58 | $ 1.88 | $ 1.77
Diluted earnings per common share | $ 0.60 | $ 0.58 | $ 1.87 | $ 1.75
Share data: |  |  |  |
Basic weighted average common shares outstanding | 82,482 | 82,402 | 82,820 | 81,994
Diluted weighted average common shares outstanding | 83,370 | 83,586 | 83,785 | 83,533

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