Stockholder's Equity (Tables)

12 Months Ended

Jan. 03, 2021

Share-based Payment Arrangement [Abstract]

Common Stock and Treasury Stock Share Activity

Common stock and treasury stock activity:	Common Stock	Treasury Stock
Balance, December 31, 2017	37,697,865	2,157,632
Issued	—	(547,064)
Balance, December 30, 2018	37,697,865	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

Stock Options Valuation Assumptions

Stock option valuation assumptions:	2020	2019	2018
Expected dividend yield	n/a	n/a	n/a
Expected volatility	23.7%	26.7%	31.0%
Risk-free interest rate	1.50% to1.75%	2.47% to 2.70%	1.99% to 2.58%
Expected life in years	6.6	6.6	6.8

Stock Option Transactions for Stock Option Plans

Stock option transactions for Teledyne’s stock option plans are summarized as follows:

	2020			2019			2018
	Shares	Weighted Average Exercise Price		Shares	Weighted Average Exercise Price		Shares	Weighted Average Exercise Price
Beginning balance	1,988,576	$	130.67	2,064,740	$	104.66	2,285,703	$	83.73
Granted	247,273	$	382.91	390,789	$	217.58	376,065	$	192.28
Exercised	(382,554)	$	95.22	(429,654)	$	80.31	(516,927)	$	71.95
Canceled or expired	(34,148)	$	252.43	(37,299)	$	181.62	(80,101)	$	129.85
Ending balance	1,819,147	$	170.10	1,988,576	$	130.67	2,064,740	$	104.66
Options exercisable at end of period	1,242,786	$	118.57	1,242,205	$	94.04	1,257,766	$	78.26

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 3, 2021, 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
$31.64-$49.99	32,723	$	44.23	0.7	32,723	$	44.23
$50.00-$99.99	601,559	$	81.19	3.6	601,559	$	81.19
$100.00-$149.99	328,787	$	123.40	6.1	328,787	$	123.40
$150.00-$199.99	277,375	$	191.98	7.1	174,385	$	191.97
$200.00-$249.99	340,564	$	217.70	8.1	104,877	$	217.83
$250.00-$383.33	238,139	$	382.90	9.1	455	$	383.33
	1,819,147	$	170.10	6.1	1,242,786	$	118.57

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 31, 2017	88,436	$	90.72
Granted	16,733	$	176.64
Issued	(28,855)	$	92.74
Forfeited/Canceled	(2,094)	$	135.48
Balance, December 30, 2018	74,220	$	108.05
Granted	17,522	$	200.00
Issued	(35,330)	$	72.91
Balance, December 29, 2019	56,412	$	158.62
Granted	10,080	$	360.33
Issued	(23,087)	$	114.74
Balance, January 3, 2021	43,405	$	228.80

The following table shows restricted stock award activity for grants made to non-employee directors:

Directors Restricted Stock:	Shares	Weighted average fair value per share
Balance, December 31, 2017	8,373	$	131.25
Granted	5,112	$	193.39
Issued	(5,733)	$	134.26
Balance, December 30, 2018	7,752	$	170.00
Granted	4,155	$	251.23
Issued	(2,840)	$	193.39
Balance, December 29, 2019	9,067	$	199.90
Granted	3,692	$	312.41
Issued	(2,640)	$	249.72
Canceled	(353)	$	311.17
Balance, January 3, 2021	9,766	$	224.94