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Fair Value Measurements (Tables)
9 Months Ended
Sep. 30, 2025
Fair Value Measurements  
Schedule of assets measured at fair value on a recurring basis Assets measured at fair value on a recurring basis are summarized below (in thousands):

Fair Value Measurements as of September 30, 2025

    

Total

    

Level 1

    

Level 2

    

Level 3

Marketable Securities

Bonds and bond funds

$

467,865

$

$

467,865

$

Commercial paper

 

240,966

 

 

240,966

 

708,831

708,831

Investments in Other Companies

5,669

5,669

Cash and Cash Equivalents

44,528

44,528

Total Assets Measured at Fair Value

$

759,028

$

50,197

$

708,831

$

Fair Value Measurements as of December 31, 2024

Total

Level 1

Level 2

Level 3

Marketable Securities

    

    

    

    

    

    

    

    

Bonds and bond funds

$

462,333

$

$

462,333

$

Commercial paper

 

111,933

 

 

111,933

 

574,266

574,266

Investments in Other Companies

8,160

 

 

8,160

Cash and Cash Equivalents

227,362

227,362

Total Assets Measured at Fair Value

$

809,788

$

227,362

$

574,266

$

8,160