Financial Instruments - Fair Market Value of Investments with Unrealized Losses Not Deemed to be Other-Than Temporarily Impaired (Detail) $ in Thousands	Jan. 01, 2022 USD ($)
Debt Securities, Available-for-sale [Line Items]
Unrealized Loss Position, Less than 12 Months, Fair Value	$ 12,064
Unrealized Loss Position, Less than 12 Months, Gross Unrealized Losses	30
Certificates of deposit
Debt Securities, Available-for-sale [Line Items]
Unrealized Loss Position, Less than 12 Months, Fair Value	1,497
Unrealized Loss Position, Less than 12 Months, Gross Unrealized Losses	3
Asset backed securities
Debt Securities, Available-for-sale [Line Items]
Unrealized Loss Position, Less than 12 Months, Fair Value	2,037
Unrealized Loss Position, Less than 12 Months, Gross Unrealized Losses	3
Corporate bonds and medium-term notes
Debt Securities, Available-for-sale [Line Items]
Unrealized Loss Position, Less than 12 Months, Fair Value	3,424
Unrealized Loss Position, Less than 12 Months, Gross Unrealized Losses	9
Municipal bonds
Debt Securities, Available-for-sale [Line Items]
Unrealized Loss Position, Less than 12 Months, Fair Value	464
Unrealized Loss Position, Less than 12 Months, Gross Unrealized Losses	1
U.S. Treasury Securities
Debt Securities, Available-for-sale [Line Items]
Unrealized Loss Position, Less than 12 Months, Fair Value	4,642
Unrealized Loss Position, Less than 12 Months, Gross Unrealized Losses	$ 14