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Fair Value Measurements (Tables)
12 Months Ended
Dec. 31, 2020
Fair Value Disclosures Measurements  
Summary Of Financial Assets And Liabilities Accounted For At Fair Value

December 31, 2020

    

Total

    

Level 1

    

Level 2

    

Level 3

(In thousands)

Assets:

 

  

 

  

 

  

 

  

Investments in marketable securities

$

96,765

$

57,224

$

39,541

$

Derivatives

 

853

 

21

 

832

 

Total assets

$

97,618

$

57,245

$

40,373

$

Liabilities:

 

 

 

 

Derivatives

$

3,899

$

7

$

3,892

$

Fair Value at December 31, 2019

    

Total

    

Level 1

    

Level 2

    

Level 3

(In thousands)

Assets:

    

  

    

  

    

  

    

  

Investments in marketable securities

$

135,667

$

35,029

$

100,638

$

Derivatives

 

5,857

 

5,269

 

527

 

61

Total assets

$

141,524

$

40,298

$

101,165

$

61

Liabilities:

 

  

 

  

 

  

 

  

Derivatives

$

3,065

$

$

3,065

$

Summary Of Change In The Fair Values Of Financial Instruments Categorized As Level 3

2020

2019

(In thousands)

Balance, beginning of period

$

61

$

532

Realized and unrealized (gains) losses recognized in earnings, net

 

(1,158)

 

(1,893)

Purchases

 

1,235

 

1,597

Issuances

 

(138)

 

(208)

Settlements

 

 

33

Ending balance

$

$

61