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Employee Benefit Plan
3 Months Ended
Mar. 31, 2012
Employee Benefit Plan [Abstract]  
Employee Benefit Plan

12. EMPLOYEE BENEFIT PLAN: Nucor makes contributions to a Profit Sharing and Retirement Savings Plan for qualified employees based on the profitability of the Company. Nucor's expense for these benefits was $22.6 million and $27.1 million in the first quarter of 2012 and 2011, respectively. The related liability for these benefits is included in salaries, wages and related accruals.