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Investments Available for Sale (Tables)
 9 Months Ended
Sep. 26, 2025
Investments, Debt and Equity Securities [Abstract]  
Summary of Investments Available for Sale and Related Fair Value Measurement

Investments available for sale (“AFS”) and the related fair value measurement consisted of the following (dollars in thousands):

 

 

 

September 26, 2025

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fair Value Measurements

 

 

 

Amortized Cost

 

 

Unrealized Gains

 

 

Unrealized Losses

 

 

Estimated Fair Value

 

 

Level 1

 

 

Level 2

 

Commercial paper

 

$

14,373

 

 

$

2

 

 

$

(2

)

 

$

14,373

 

 

$

—

 

 

$

14,373

 

Certificates of deposit

 

 

1,524

 

 

 

1

 

 

 

—

 

 

 

1,525

 

 

 

—

 

 

 

1,525

 

Corporate debt securities

 

 

607

 

 

 

—

 

 

 

—

 

 

 

607

 

 

 

—

 

 

 

607

 

Total investments AFS

 

$

16,504

 

 

$

3

 

 

$

(2

)

 

$

16,505

 

 

$

—

 

 

$

16,505

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

December 27, 2024

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fair Value Measurements

 

 

 

Amortized Cost

 

 

Unrealized Gains

 

 

Unrealized Losses

 

 

Estimated Fair Value

 

 

Level 1

 

 

Level 2

 

Commercial paper

 

$

21,466

 

 

$

4

 

 

$

(2

)

 

$

21,468

 

 

$

—

 

 

$

21,468

 

Certificates of deposit

 

 

1,997

 

 

 

—

 

 

 

—

 

 

 

1,997

 

 

 

—

 

 

 

1,997

 

U.S. Treasury securities

 

 

11,356

 

 

 

3

 

 

 

(4

)

 

 

11,355

 

 

 

11,355

 

 

 

—

 

Corporate debt securities

 

 

51,527

 

 

 

14

 

 

 

(26

)

 

 

51,515

 

 

 

—

 

 

 

51,515

 

Total investments AFS

 

$

86,346

 

 

$

21

 

 

$

(32

)

 

$

86,335

 

 

$

11,355

 

 

$

74,980

 
Summary of Fair Value of Investments Available for Sale by Contractual Maturity

The following table shows the fair value of investments AFS by contractual maturity (dollars in thousands):

 

 

 

As of September 26, 2025

 

 

 

Within one year

 

 

After one year through five years

 

 

 

Total

 

Commercial paper

 

$

14,373

 

 

$

—

 

 

 

$

14,373

 

Certificates of deposit

 

 

1,525

 

 

 

—

 

 

 

 

1,525

 

Corporate debt securities

 

 

607

 

 

 

—

 

 

 

 

607

 

Total investments AFS

 

$

16,505

 

 

$

—

 

 

 

$

16,505