Stock Compensation Plans and Stock Based Compensation (Details 10) shares in Thousands	Jan. 02, 2021 shares
Common stock reserved for future issuance
Common stock reserved for future issuance	27,349
Employee equity incentive plans [Member]
Common stock reserved for future issuance
Common stock reserved for future issuance	21,365	[1]
Employee stock purchase plans [Member]
Common stock reserved for future issuance
Common stock reserved for future issuance	5,254
Directors stock option plans [Member]
Common stock reserved for future issuance
Common stock reserved for future issuance	730	[1]

[1] Includes shares reserved for: (i) issuance upon exercise of future option grants, (ii) issuance upon vesting of future restricted stock grants, (iii) outstanding but unexercised options to purchase common stock, or (iv) unvested restricted stock units.