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Note 8 - Fair Value Measurements (Tables)
3 Months Ended
Mar. 31, 2022
Notes Tables  
Fair Value, by Balance Sheet Grouping [Table Text Block]
  

March 31, 2022

 

(In thousands)

 

Balance

  

Level 1

  

Level 2

  

Level 3

 

Assets

                

Cash and cash equivalents

 $402,975  $402,975  $  $ 

Restricted cash

  16,249   16,249       

Investment available for sale

  15,612         15,612 
  

December 31, 2021

 

(In thousands)

 

Balance

  

Level 1

  

Level 2

  

Level 3

 

Assets

                

Cash and cash equivalents

 $344,557  $344,557  $  $ 

Restricted cash

  12,571   12,571       

Investment available for sale

  15,822         15,822 

Liability

                

Contingent payments

 $62  $  $  $62 
Fair Value Asset (Liability) Measured On Recurring Basis Unobservable Input Reconciliation [Table Text Block]
  

Three Months Ended

 
  

March 31, 2022

  

March 31, 2021

 
  

Asset

  

Liability

  

Asset

  

Liability

 

(In thousands)

 

Investment Available for Sale

  

Contingent Payments

  

Investment Available for Sale

  

Contingent Payments

 

Balance at beginning of reporting period

 $15,822  $(62) $16,692  $(924)

Total gains (losses) (realized or unrealized):

                

Included in interest income (expense)

  42      41   (13)

Included in other comprehensive income (loss)

  (252)     (436)   

Included in other items, net

           26 

Purchases, sales, issuances and settlements:

                

Settlements

     62      142 

Balance at end of reporting period

 $15,612  $  $16,297  $(769)
Fair Value, Liabilities Measured on Recurring and Nonrecurring Basis [Table Text Block]
  

March 31, 2022

  Outstanding  Carrying  Estimated 

Fair Value

(In thousands)

 

Face Amount

  

Value

  

Fair Value

 

Hierarchy

Liabilities

             

Obligation under assessment arrangements

 $23,738  $20,315  $26,581 

Level 3

  

December 31, 2021

  Outstanding  Carrying  Estimated 

Fair Value

(In thousands)

 

Face Amount

  

Value

  

Fair Value

 

Hierarchy

Liabilities

             

Obligation under assessment arrangements

 $24,306  $20,734  $26,908 

Level 3

Schedule of Carrying Values and Estimated Fair Values of Debt Instruments [Table Text Block]
  

March 31, 2022

  Outstanding  Carrying  Estimated 

Fair Value

(In thousands)

 

Face Amount

  

Value

  

Fair Value

 

Hierarchy

Bank credit facility

 $880,000  $861,527  $877,800 

Level 2

4.750% senior notes due 2027

  1,000,000   988,798   987,500 

Level 1

8.625% senior notes due 2025

  300,000   296,231   315,375 

Level 1

4.750% senior notes due 2031

  900,000   887,071   864,000 

Level 1

Other

  550   550   550 

Level 3

Total debt

 $3,080,550  $3,034,177  $3,045,225  
  

December 31, 2021

  Outstanding  Carrying  Estimated 

Fair Value

(In thousands)

 

Face Amount

  

Value

  

Fair Value

 

Hierarchy

Bank credit facility

 $867,897  $859,106  $866,812 

Level 2

4.750% senior notes due 2027

  1,000,000   988,312   1,023,750 

Level 1

8.625% senior notes due 2025

  300,000   295,934   320,250 

Level 1

4.750% senior notes due 2031

  900,000   886,746   915,750 

Level 1

Other

  1,496   1,496   1,496 

Level 3

Total debt

 $3,069,393  $3,031,594  $3,128,058