XML 35 R25.htm IDEA: XBRL DOCUMENT v3.23.3
Fair Value Measurements (Tables)
9 Months Ended
Sep. 30, 2023
Fair Value Measurements  
Schedule of assets measured at fair value on a recurring basis The Company’s assets measured at fair value on a recurring basis are summarized below (in thousands):

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

Fair Value Measurements as of September 30, 2023

​

    

Total

    

Level 1

    

Level 2

    

Level 3

Marketable Securities

​

​

​

​

​

​

​

​

​

​

​

​

Bonds and bond funds

​

$

633,538

​

$

—

​

$

633,538

​

$

—

Commercial paper

​

 

60,633

​

 

—

​

 

60,633

​

 

—

​

​

$

694,171

​

$

—

​

$

694,171

​

$

—

Investments in Other Companies

​

​

18,465

​

​

4,380

​

​

—

​

​

14,085

Cash and Cash Equivalents

​

​

125,330

​

​

125,330

​

​

—

​

​

—

Total Assets Measured at Fair Value

​

$

837,966

​

$

129,710

​

$

694,171

​

$

14,085

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

Fair Value Measurements as of December 31, 2022

​

​

Total

​

Level 1

​

Level 2

​

Level 3

Marketable Securities

    

​

    

    

​

    

    

​

    

    

​

    

Bonds and bond funds

​

$

624,254

​

$

—

​

$

624,254

​

$

—

Commercial paper

​

 

319,977

​

 

—

​

 

319,977

​

 

—

​

​

$

944,231

​

$

—

​

$

944,231

​

$

—

Investments in Other Companies

​

​

21,380

​

​

7,200

​

 

—

​

 

14,180

Cash and Cash Equivalents

​

​

102,984

​

​

102,984

​

​

—

​

​

—

Total Assets Measured at Fair Value

​

$

1,068,595

​

$

110,184

​

$

944,231

​

$

14,180

​