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Note 8 - Fair Value Measurements (Tables)
6 Months Ended
Jun. 30, 2021
Notes Tables  
Fair Value, by Balance Sheet Grouping [Table Text Block]
  

June 30, 2021

 

(In thousands)

 

Balance

  

Level 1

  

Level 2

  

Level 3

 

Assets

                

Cash and cash equivalents

 $334,537  $334,537  $  $ 

Restricted cash

  21,312   21,312       

Investment available for sale

  15,696         15,696 
                 

Liabilities

                

Contingent payments

 $489  $  $  $489 
  

December 31, 2020

 

(In thousands)

 

Balance

  

Level 1

  

Level 2

  

Level 3

 

Assets

                

Cash and cash equivalents

 $519,182  $519,182  $  $ 

Restricted cash

  15,817   15,817       

Investment available for sale

  16,692         16,692 
                 

Liabilities

                

Contingent payments

 $924  $  $  $924 
Fair Value Asset (Liability) Measured On Recurring Basis Unobservable Input Reconciliation [Table Text Block]
  

Three Months Ended

 
  

June 30, 2021

  

June 30, 2020

 
  

Asset

  

Liability

  

Asset

  

Liability

 

(In thousands)

 

Investment Available for Sale

  

Contingent Payments

  

Investment Available for Sale

  

Contingent Payments

 

Balance at beginning of reporting period

 $16,297  $(769) $17,745  $(1,520)

Total gains (losses) (realized or unrealized):

                

Included in interest income (expense)

  41   (8)  39   (22)

Included in other comprehensive income (loss)

  (52)     (367)   

Included in other items, net

     (23)     238 

Purchases, sales, issuances and settlements:

                

Settlements

  (590)  311   (550)  29 

Balance at end of reporting period

 $15,696  $(489) $16,867  $(1,275)
  

Six Months Ended

 
  

June 30, 2021

  

June 30, 2020

 
  

Asset

  

Liability

  

Asset

  

Liability

 

(In thousands)

 

Investment Available for Sale

  

Contingent Payments

  

Investment Available for Sale

  

Contingent Payments

 

Balance at beginning of reporting period

 $16,692  $(924) $16,151  $(1,712)

Total gains (losses) (realized or unrealized):

                

Included in interest income (expense)

  82   (21)  78   (48)

Included in other comprehensive income (loss)

  (488)     1,188    

Included in other items, net

     3      221 

Purchases, sales, issuances and settlements:

                

Settlements

  (590)  453   (550)  264 

Balance at end of reporting period

 $15,696  $(489) $16,867  $(1,275)
Fair Value, Liabilities Measured on Recurring and Nonrecurring Basis [Table Text Block]
  

June 30, 2021

(In thousands)

 

Outstanding Face Amount

  

Carrying Value

  

Estimated Fair Value

 

Fair Value Hierarchy

Liabilities

             

Obligation under assessment arrangements

 $25,289  $25,590  $27,042 

Level 3

  

December 31, 2020

(In thousands)

 

Outstanding Face Amount

  

Carrying Value

  

Estimated Fair Value

 

Fair Value Hierarchy

Liabilities

             

Obligation under assessment arrangements

 $26,246  $22,062  $26,542 

Level 3

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

June 30, 2021

(In thousands)

 

Outstanding Face Amount

  

Carrying Value

  

Estimated Fair Value

 

Fair Value Hierarchy

Bank credit facility

 $884,648  $873,679  $882,436 

Level 2

4.750% senior notes due 2027

  1,000,000   987,338   1,032,500 

Level 1

8.625% senior notes due 2025

  600,000   590,678   660,750 

Level 1

4.750% senior notes due 2031

  900,000   885,560   933,750 

Level 1

Other

  2,295   2,295   2,295 

Level 3

Total debt

 $3,386,943  $3,339,550  $3,511,731  
  

December 31, 2020

(In thousands)

 

Outstanding Face Amount

  

Carrying Value

  

Estimated Fair Value

 

Fair Value Hierarchy

Bank credit facility

 $896,185  $882,789  $888,511 

Level 2

6.375% senior notes due 2026

  750,000   743,053   778,125 

Level 1

6.000% senior notes due 2026

  700,000   692,151   728,000 

Level 1

4.750% senior notes due 2027

  1,000,000   986,364   1,038,750 

Level 1

8.625% senior notes due 2025

  600,000   589,488   667,500 

Level 1

Other

  3,638   3,638   3,638 

Level 3

Total debt

 $3,949,823  $3,897,483  $4,104,524