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Stock-Based Compensation Plans (Tables)
3 Months Ended
Mar. 30, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Valuation of stock options granted
The following assumptions will be used in the valuation of stock options granted in 2014:
 
2014
Expected dividend yield

Expected volatility
30.7
%
Risk-free interest rate
1.7
%
Expected life in years
7.5

Stock option transactions for employee stock option plans
Stock option transactions for Teledyne’s employee stock option plans for the first quarter ended March 30, 2014 are summarized as follows:
 
Shares
 
Weighted
Average
Exercise
Price
Beginning balance
2,419,372

 
$
53.77

Exercised
(175,756
)
 
$
38.13

Canceled or expired
(10,831
)
 
$
65.04

Ending balance
2,232,785

 
$
54.94

Options exercisable at end of period
1,371,429

 
$
44.51

Stock option transactions for non-employee stock option plans
Stock option transactions for Teledyne’s non-employee director stock option plans for the first quarter ended March 30, 2014 are summarized as follows:
 
Shares
 
Weighted
Average
Exercise
Price
Beginning balance
324,381

 
$
44.99

Granted
2,957

 
$
60.03

Ending balance
327,338
 
$
45.13

Options exercisable at end of period
285,402

 
$
41.11