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Note 9 - Fair Value Measurements (Tables)
6 Months Ended
Jun. 30, 2023
Notes Tables  
Fair Value, by Balance Sheet Grouping [Table Text Block]
  

June 30, 2023

 

(In thousands)

 

Balance

  

Level 1

  

Level 2

  

Level 3

 

Assets

                

Cash and cash equivalents

 $260,787  $260,787  $  $ 

Restricted cash

  11,615   11,615       

Investment available for sale

  13,215         13,215 
  

December 31, 2022

 

(In thousands)

 

Balance

  

Level 1

  

Level 2

  

Level 3

 

Assets

                

Cash and cash equivalents

 $283,472  $283,472  $  $ 

Restricted cash

  11,593   11,593       

Investment available for sale

  13,670         13,670 
Fair Value Asset (Liability) Measured On Recurring Basis Unobservable Input Reconciliation [Table Text Block]
  

Three Months Ended

  

Six Months Ended

 
  

June 30,

  

June 30,

 

(In thousands)

 

2023

  

2022

  

2023

  

2022

 

Balance at beginning of reporting period

 $14,348  $15,612  $13,670  $15,822 

Total gains (losses) (realized or unrealized):

                

Included in interest income

  44   42   87   84 

Included in other comprehensive income (loss)

  (497)  (903)  138   (1,155)

Purchases, sales, issuances and settlements:

                

Settlements

  (680)  (635)  (680)  (635)

Balance at end of reporting period

 $13,215  $14,116  $13,215  $14,116 
Fair Value, Liabilities Measured on Recurring and Nonrecurring Basis [Table Text Block]
  

June 30, 2023

  Outstanding  Carrying  Estimated 

Fair Value

(In thousands)

 

Face Amount

  

Value

  

Fair Value

 

Hierarchy

Asset

             

Note receivable

 $66,335  $66,335  $65,893 

Level 3

Liabilities

             

Obligation under assessment arrangements

  21,261   18,546   24,739 

Level 3

  

December 31, 2022

  Outstanding  Carrying  Estimated 

Fair Value

(In thousands)

 

Face Amount

  

Value

  

Fair Value

 

Hierarchy

Asset

             

Note receivable

 $118,162  $83,791  $82,338 

Level 3

Liabilities

             

Obligation under assessment arrangements

  22,293   19,304   25,738 

Level 3

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

June 30, 2023

  Outstanding  Carrying  Estimated 

Fair Value

(In thousands)

 

Face Amount

  

Value

  

Fair Value

 

Hierarchy

Credit facility

 $1,078,500  $1,062,928  $1,072,313 

Level 2

4.750% senior notes due 2027

  1,000,000   991,234   945,000 

Level 1

4.750% senior notes due 2031

  900,000   889,215   802,125 

Level 1

Other

  589   589   589 

Level 3

Total debt

 $2,979,089  $2,943,966  $2,820,027  
  

December 31, 2022

  Outstanding  Carrying  Estimated 

Fair Value

(In thousands)

 

Face Amount

  

Value

  

Fair Value

 

Hierarchy

Credit facility

 $1,187,800  $1,169,935  $1,183,565 

Level 2

4.750% senior notes due 2027

  1,000,000   990,260   928,750 

Level 1

4.750% senior notes due 2031

  900,000   888,540   784,125 

Level 1

Other

  674   674   674 

Level 3

Total debt

 $3,088,474  $3,049,409  $2,897,114