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Marketable Securities - (Tables)
 9 Months Ended
Sep. 27, 2025
Marketable Securities [Abstract]  
Schedule of Marketable Securities by Category

At September 27, 2025 and December 28, 2024, marketable securities are categorized as follows:

 

 

 

Amortized Cost

 

 

Gross Unrealized Holding Gains

 

 

Gross Unrealized Holding Losses

 

 

Fair Value

 

 

 

(in thousands)

 

September 27, 2025

 

 

 

 

 

 

 

 

 

 

 

 

Government notes and bonds

 

$

196,607

 

 

$

669

 

 

$

19

 

 

$

197,257

 

Certificates of deposit

 

 

60,570

 

 

 

51

 

 

 

—

 

 

 

60,621

 

Commercial paper

 

 

50,910

 

 

 

15

 

 

 

3

 

 

 

50,922

 

Corporate bonds

 

 

71,818

 

 

 

225

 

 

 

—

 

 

 

72,043

 

Total marketable securities

 

$

379,905

 

 

$

960

 

 

$

22

 

 

$

380,843

 

December 28, 2024

 

 

 

 

 

 

 

 

 

 

 

 

Government notes and bonds

 

$

284,763

 

 

$

387

 

 

$

287

 

 

$

284,863

 

Certificates of deposit

 

 

73,390

 

 

 

49

 

 

 

18

 

 

 

73,421

 

Commercial paper

 

 

136,496

 

 

 

103

 

 

 

42

 

 

 

136,557

 

Corporate bonds

 

 

144,331

 

 

 

283

 

 

 

72

 

 

 

144,542

 

Total marketable securities

 

$

638,980

 

 

$

822

 

 

$

419

 

 

$

639,383

 
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, are as follows at September 27, 2025 and December 28, 2024:

 

 

 

September 27, 2025

 

 

December 28, 2024

 

 

 

Amortized Cost

 

 

Fair Value

 

 

Amortized Cost

 

 

Fair Value

 

 

 

(in thousands)

 

Due within one year

 

$

288,860

 

 

$

289,282

 

 

$

432,088

 

 

$

432,616

 

Due after one through five years

 

 

91,045

 

 

 

91,561

 

 

 

140,917

 

 

 

140,792

 

Due after five through ten years

 

 

—

 

 

 

—

 

 

 

235

 

 

 

235

 

Due after ten years

 

 

—

 

 

 

—

 

 

 

65,740

 

 

 

65,740

 

Total marketable securities

 

$

379,905

 

 

$

380,843

 

 

$

638,980

 

 

$

639,383

 
Debt Securities, Available-for-Sale, Unrealized Loss Position, Fair Value [Table Text Block]

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 September 27, 2025 and December 28, 2024:

 

 

 

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

 

 

 

(in thousands)

 

September 27, 2025

 

 

 

 

 

 

 

 

 

 

 

 

Government notes and bonds

 

$

11,152

 

 

$

11

 

 

$

3,573

 

 

$

9

 

Certificates of deposit

 

 

—

 

 

 

—

 

 

 

2,000

 

 

 

—

 

Commercial paper

 

 

14,597

 

 

 

1

 

 

 

8,457

 

 

 

1

 

Corporate bonds

 

 

—

 

 

 

—

 

 

 

—

 

 

 

—

 

Total

 

$

25,749

 

 

$

12

 

 

$

14,030

 

 

$

10

 

December 28, 2024

 

 

 

 

 

 

 

 

 

 

 

 

Government notes and bonds

 

$

37,636

 

 

$

287

 

 

$

—

 

 

$

—

 

Certificates of deposit

 

 

8,260

 

 

 

18

 

 

 

—

 

 

 

—

 

Commercial paper

 

 

18,317

 

 

 

42

 

 

 

—

 

 

 

—

 

Corporate bonds

 

 

13,260

 

 

 

71

 

 

 

3,200

 

 

 

1

 

Total

 

$

77,473

 

 

$

418

 

 

$

3,200

 

 

$

1