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Earnings Per Share (Details) (USD $)
In Millions, except Share data, unless otherwise specified
3 Months Ended
Mar. 31, 2013
Apr. 01, 2012
Computation of Basic and Diluted Earnings Per Share    
Net income attributable to Teledyne $ 40.4 $ 35.7
Basic earnings per share:    
Weighted average common shares outstanding (in shares) 37,200,000 36,500,000
Basic earnings per common share (in USD per share) $ 1.09 $ 0.98
Diluted earnings per share:    
Weighted average common shares outstanding (in shares) 37,200,000 36,500,000
Dilutive effect of exercise of options outstanding (in shares) 600,000 700,000
Weighted average diluted common shares outstanding (in shares) 37,800,000 37,200,000
Diluted earnings per common share (in USD per share) $ 1.07 $ 0.96
Earnings Per Share (Textual) [Abstract]    
Stock option excluded in computation of diluted (in shares) 0 0