Marketable Securities - (Tables)

9 Months Ended

Oct. 01, 2022

Schedule of Marketable Securities by Category

At October 1, 2022 and January 1, 2022, marketable securities are categorized as follows:

	Amortized Cost		Gross Unrealized Holding Gains		Gross Unrealized Holding Losses		Fair Value
October 1, 2022
Municipal notes and bonds	$	174,570	$	3	$	3,223	$	171,350
Asset-backed securities		1,889		—		31		1,858
Certificates of deposit		40,400		10		130		40,280
Commercial paper		78,253		4		174		78,083
Corporate bonds		62,081		—		1,323		60,758
Total marketable securities	$	357,193	$	17	$	4,881	$	352,329
January 1, 2022
Municipal notes and bonds	$	171,203	$	38	$	261	$	170,980
Asset-backed securities		2,009		—		—		2,009
Certificates of deposit		33,200		2		10		33,192
Commercial paper		73,152		2		41		73,113
Corporate bonds		62,634		29		216		62,447
Total marketable securities	$	342,198	$	71	$	528	$	341,741

Schedule of Amortized Cost and Estimated Fair Value of Marketable Securities Classified by Maturity Date

The amortized cost and estimated fair value of marketable securities classified by the maturity date listed on the security, regardless of the Condensed Consolidated Balance Sheets classification, is as follows at October 1, 2022 and January 1, 2022:

	October 1, 2022				January 1, 2022
	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Due within one year	$	276,724	$	273,654	$	219,353	$	219,211
Due after one through five years		80,469		78,675		122,845		122,530
Due after five years		—		—		—		—
Total marketable securities	$	357,193	$	352,329	$	342,198	$	341,741

Summary of Estimated Fair Value and Gross Unrealized Holding Losses of Marketable Securities in Unrealized Loss Position

The following table summarizes the estimated fair value and gross unrealized holding losses of marketable securities, aggregated by investment instrument and period of time in an unrealized loss position, at October 1, 2022 and January 1, 2022:

	In Unrealized Loss Position For Less Than 12 Months				In Unrealized Loss Position For Greater Than 12 Months
	Fair Value		Gross Unrealized Losses		Fair Value		Gross Unrealized Losses
October 1, 2022
Municipal notes and bonds	$	123,978	$	2,082	$	50,280	$	1,140
Asset-backed securities		1,889		31		—		—
Certificates of deposit		29,400		127		2,500		4
Commercial paper		71,754		174		500		1
Corporate bonds		39,749		891		22,331		431
Total	$	266,770	$	3,305	$	75,611	$	1,576
January 1, 2022
Municipal notes and bonds	$	113,790	$	262	$	—	$	—
Certificates of deposit		16,300		10		—		—
Commercial paper		58,681		40		—		—
Corporate bonds		53,661		150		2,587		66
Total	$	242,432	$	462	$	2,587	$	66