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Stockholder's Equity (Tables)
 12 Months Ended
Jan. 01, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Common Stock and Treasury Stock Share Activity
Common stock and treasury stock activity:
 
Stock
 
Treasury Stock
Balance, December 29, 2013
 
37,571,182

 
—

Acquired
 
—

 
1,396,290

Issued
 
126,683

 
(354,009
)
Balance, December 28, 2014
 
37,697,865

 
1,042,281

Acquired
 
—

 
2,561,815

Issued
 
—

 
(420,830
)
Balance, January 3, 2016
 
37,697,865

 
3,183,266

Acquired
 
—
 
138,831

Issued
 
—
 
(734,994
)
Balance, January 1, 2017
 
37,697,865
 
2,587,103
Stock Options Valuation Assumptions
Stock option valuation assumptions:
2016
 
2014
Expected dividend yield
—

 
—

Expected volatility
32.7
%
 
30.7
%
Risk-free interest rate
1.5
%
 
1.7
%
Expected life in years
7.2

 
7.4
Stock Option Transactions for Stock Option Plans
Stock option transactions for Teledyne’s stock option plans are summarized as follows:
 
2016
 
2015
 
2014
 
Shares
 
Weighted Average Exercise Price
 
Shares
 
Weighted Average Exercise Price
 
Shares
 
Weighted Average Exercise Price
Beginning balance
2,383,870
 
$
63.74

 
2,850,877

 
$
62.37

 
2,743,753

 
$
52.74

Granted
520,310

 
$
78.46

 
—

 
$
—

 
612,018

 
$
93.85

Exercised
(687,018
)
 
$
52.54

 
(386,679
)
 
$
49.13

 
(424,255
)
 
$
43.18

Canceled or expired
(41,720
)
 
$
82.49

 
(80,328
)
 
$
85.26

 
(80,639
)
 
$
74.70

Ending balance
2,175,442

 
$
70.44

 
2,383,870

 
$
63.74

 
2,850,877

 
$
62.37

Options exercisable at end of period
1,530,847

 
$
65.52

 
1,907,126

 
$
57.61

 
1,787,364

 
$
49.30
Stock Options Outstanding and Stock Options Exercisable Under Stock Option Plans
The following table provides certain information with respect to stock options outstanding and stock options exercisable at January 1, 2017, under the stock option plans: 
 
  
Stock Options Outstanding
 
Stock Options Exercisable
Range of Exercise Prices
  
Shares
 
Weighted Average Exercise Price
 
Remaining life in years
 
Shares
 
Weighted Average Exercise Price
$15.53-$20.00
  
966

 
$
15.53

 
2.2
 
966

 
$
15.53

$20.01-$30.00
  
19,085

 
$
26.03

 
3.2
 
19,085

 
$
26.03

$30.01-$40.00
  
61,666

 
$
35.60

 
1.8
 
61,666

 
$
35.60

$40.01-$50.00
  
388,319

 
$
45.20

 
3.8
 
388,319

 
$
45.20

$50.01-$60.00
  
112,973

 
$
51.60

 
1.5
 
112,973

 
$
51.60

$60.01-$70.00
 
267,123

 
$
64.67

 
5.4
 
267,123

 
$
64.67

$70.01-$90.00
 
872,768

 
$
77.02

 
7.9
 
378,408

 
$
75.21

$90.01-$95.74
 
452,542

 
$
94.24

 
7.3
 
302,307

 
$
94.24

 
  
2,175,442

 
$
70.44

 
6.2
 
1,530,847

 
$
65.52
Summary of Restricted Stock Activity
The following table shows restricted stock award activity for grants made to employees:
Restricted stock:
  
Shares
 
Weighted average fair value per share
Balance, December 29, 2013
  
129,283

 
$
52.31

Granted
 
37,688

 
$
88.05

Issued
 
(40,197
)
 
$
37.22

Forfeited/Canceled
 
(18,048
)
 
$
56.68

Balance, December 28, 2014
 
108,726

 
$
69.55

Granted
 
34,054

 
$
92.74

Issued
 
(29,642
)
 
$
51.38

Forfeited/Canceled
 
(13,502
)
 
$
82.33

Balance, January 3, 2016
 
99,636

 
$
81.15

Granted
 
35,364

 
$
72.91

Issued
 
(39,357
)
 
$
67.15

Forfeited/Canceled
 
(339
)
 
$
79.93

Balance, January 1, 2017
 
95,304

 
$
83.87