v2.4.0.6
Encore Wire Corporation 401(k) Profit Sharing Plan (Details) (Profit Sharing Plan [Member], USD $)
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2012
Maximum [Member]
Nov. 15, 2010
Maximum [Member]
Scenario, Previously Reported [Member]
Dec. 31, 2012
Minimum [Member]
Encore Wire Corporation 401(k) Profit Sharing Plan (Textual) [Abstract]            
Elective deferral contribution of employees       50.00% 15.00% 1.00%
Percentage of Employee Compensation level 1 100.00%          
Percentage of Employee Eligible Compensation level 1 3.00%          
Percentage of Employee Compensation level 2 50.00%          
Percentage of Employee Eligible Compensation level 2 2.00%          
Vested employer safe harbor matching contributions 100.00%          
Company's matching contributions $ 700,000 $ 600,000 $ 500,000      
Profit-sharing contributions $ 0 $ 0 $ 0