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Stockholders’ Equity (Tables)
12 Months Ended
Jan. 02, 2022
Share-based Payment Arrangement [Abstract]  
Common Stock and Treasury Stock Share Activity
Common stock and treasury stock activity:Common StockTreasury Stock
Balance, December 30, 201837,697,865 1,610,568 
Issued (460,669)
Balance, December 29, 2019
37,697,865 1,149,899 
Issued— (403,641)
Balance, January 3, 2021
37,697,865 746,258 
Issued9,496,901 (243,788)
Balance, January 2, 2022
47,194,766 502,470 
Stock Options Valuation Assumptions
Stock option valuation assumptions:202120202019
Expected dividend yieldn/an/an/a
Expected volatility27.8%23.7%26.7%
Risk-free interest rate
0.09% to1.58%
1.50% to 1.75%
2.47% to 2.70%
Expected life in years5.26.66.6
Stock Option Transactions for Stock Option Plans Stock option transactions for Teledynes stock option plans are summarized as follows:
 202120202019
 SharesWeighted Average Exercise PriceSharesWeighted Average Exercise PriceSharesWeighted Average Exercise Price
Beginning balance1,819,147$170.10 1,988,576$130.67 2,064,740$104.66 
Granted211,973 $440.48 247,273 $382.91 390,789 $217.58 
Exercised(213,384)$118.55 (382,554)$95.22 (429,654)$80.31 
Canceled or expired(23,879)$328.15 (34,148)$252.43 (37,299)$181.62 
Ending balance1,793,857$206.08 1,819,147$170.10 1,988,576$130.67 
Options exercisable at end of period1,328,191$148.73 1,242,786$118.57 1,242,205$94.04 
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 2, 2022, under the stock option plans.
   Stock Options OutstandingStock Options Exercisable
Range of Exercise Prices  SharesWeighted Average Exercise PriceRemaining life in yearsSharesWeighted Average Exercise Price
$40.70-$99.99
  500,916 $82.16 2.7500,916 $82.16 
$100.00-$199.99
  558,185 $153.97 5.6558,185 $153.97 
$200.00-$299.99
  307,410 $217.71 7.1197,353 $217.77 
$300.00-$399.99
  220,180 $382.89 8.171,737 $382.93 
$400.00-$445.21
  207,166 $440.93 9.7— $— 
   1,793,857 $206.08 5.81,328,191 $148.73 
Summary of Restricted Stock Activity The following table shows restricted stock award activity for grants made to employees:
Restricted Stock:   SharesWeighted average fair value per share
Balance, December 30, 201874,220 $108.05 
Granted17,522 $200.00 
Issued(35,330)$72.91 
Balance, December 29, 2019
56,412 $158.62 
Granted10,080 $360.33 
Issued(23,087)$114.74 
Balance, January 3, 2021
43,405 $228.80 
Granted10,227 $334.92 
Issued(15,423)$176.64 
Forfeited/Canceled(380)$176.64 
Balance, January 2, 2022
37,829 $279.27 
The following table shows restricted stock award activity for grants made to non-employee directors:
Directors Restricted Stock: SharesWeighted average fair value per share
Balance, December 30, 20187,752 $170.00 
Granted4,155 $251.23 
Issued(2,840)$193.39 
Balance, December 29, 2019
9,067 $199.90 
Granted3,692 $312.41 
Issued(2,640)$249.72 
Canceled(353)$311.17 
Balance, January 3, 2021
9,766 $224.94 
Granted2,592 $450.27 
Issued(5,300)$227.90 
Balance, January 2, 2022
7,058 $308.54