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

September 30, 2023

 

(In thousands)

 

Balance

  

Level 1

  

Level 2

  

Level 3

 

Assets

                

Cash and cash equivalents

 $269,155  $269,155  $  $ 

Restricted cash

  2,479   2,479       

Investment available for sale

  13,098         13,098 
  

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

  

Nine Months Ended

 
  

September 30,

  

September 30,

 

(In thousands)

 

2023

  

2022

  

2023

  

2022

 

Balance at beginning of reporting period

 $13,215  $14,116  $13,670  $15,822 

Total gains (losses) (realized or unrealized):

                

Included in interest income

  41   40   128   125 

Included in other comprehensive income (loss)

  (158)  (203)  (20)  (1,359)

Purchases, sales, issuances and settlements:

                

Settlements

        (680)  (635)

Balance at end of reporting period

 $13,098  $13,953  $13,098  $13,953 
Fair Value, Liabilities Measured on Recurring and Nonrecurring Basis [Table Text Block]
  

September 30, 2023

  Outstanding  Carrying  Estimated 

Fair Value

(In thousands)

 

Face Amount

  

Value

  

Fair Value

 

Hierarchy

Asset

             

Note receivable

 $32,498  $32,498  $32,498 

Level 3

Liabilities

             

Obligation under assessment arrangements

  20,659   18,079   23,835 

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]
  

September 30, 2023

  Outstanding  Carrying  Estimated 

Fair Value

(In thousands)

 

Face Amount

  

Value

  

Fair Value

 

Hierarchy

Credit facility

 $1,041,800  $1,027,315  $1,019,415 

Level 2

4.750% senior notes due 2027

  1,000,000   991,721   917,500 

Level 1

4.750% senior notes due 2031

  900,000   889,551   762,750 

Level 1

Other

  538   538   538 

Level 3

Total debt

 $2,942,338  $2,909,125  $2,700,203  
  

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