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CASH, CASH EQUIVALENTS AND INVESTMENTS (Tables)
 12 Months Ended
Dec. 31, 2021
Cash and Cash Equivalents [Abstract]  
Schedule of Cash, Cash Equivalents

The following table provides details regarding the Company’s portfolio of cash and cash equivalents (in thousands):

 

 

 

Amortized

 

 

Unrealized

 

 

Aggregate Fair

 

Cash and Cash Equivalents Classification

 

Cost

 

 

Gains

 

 

(Losses)

 

 

Market Value

 

December 31, 2021

 

 

 

 

 

 

 

 

 

 

 

 

Cash accounts in banking institutions

 

$

256,878

 

 

$

—

 

 

$

—

 

 

$

256,878

 

Money market accounts

 

 

55,115

 

 

 

—

 

 

 

—

 

 

 

55,115

 

 

 

$

311,993

 

 

$

—

 

 

$

—

 

 

$

311,993

 

December 31, 2020

 

 

 

 

 

 

 

 

 

 

 

 

Cash accounts in banking institutions

 

$

163,779

 

 

$

—

 

 

$

—

 

 

$

163,779

 

Money market accounts

 

 

17,261

 

 

 

—

 

 

 

—

 

 

 

17,261

 

U.S. Government bonds

 

 

448,970

 

 

 

6

 

 

 

(4

)

 

 

448,972

 

 

 

$

630,010

 

 

$

6

 

 

$

(4

)

 

$

630,012

 
Schedule of Investments

The following table provides details regarding the Company’s portfolio of short-term investments (in thousands):

 

 

 

Amortized

 

 

Unrealized

 

 

Aggregate Fair

 

Short-term Investments Classification

 

Cost

 

 

Gains

 

 

(Losses)

 

 

Market Value

 

December 31, 2021

 

 

 

 

 

 

 

 

 

 

 

 

Certificates of deposit

 

$

240

 

 

$

—

 

 

$

—

 

 

$

240

 

Corporate bonds

 

 

226,448

 

 

 

3

 

 

 

(97

)

 

 

226,354

 

U.S. Government bonds

 

 

124,611

 

 

 

—

 

 

 

(11

)

 

 

124,600

 

 

 

$

351,299

 

 

$

3

 

 

$

(108

)

 

$

351,194

 

December 31, 2020

 

 

 

 

 

 

 

 

 

 

 

 

U.S. Government bonds

 

 

99,929

 

 

 

67

 

 

 

—

 

 

 

99,996

 

 

 

$

99,929

 

 

$

67

 

 

$

—

 

 

$

99,996

 

The following table provides details regarding the Company’s portfolio of long-term investments (in thousands):

 

 

 

Amortized

 

 

Unrealized

 

 

Aggregate Fair

 

Long-term Investments Classification

 

Cost

 

 

Gains

 

 

(Losses)

 

 

Market Value

 

December 31, 2021

 

 

 

 

 

 

 

 

 

 

 

 

U.S. Government bonds

 

$

159,692

 

 

$

10

 

 

$

(134

)

 

$

159,568

 

 

 

$

159,692

 

 

$

10

 

 

$

(134

)

 

$

159,568