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Note 9 - Fair Value Measurements (Tables)
9 Months Ended
Sep. 30, 2024
Notes Tables  
Fair Value, by Balance Sheet Grouping [Table Text Block]
  

September 30, 2024

 

(In thousands)

 

Balance

  

Level 1

  

Level 2

  

Level 3

 

Assets

                

Cash and cash equivalents

 $286,281  $286,281  $  $ 

Restricted cash

  3,928   3,928       

Investment available for sale

  13,202         13,202 
  

December 31, 2023

 

(In thousands)

 

Balance

  

Level 1

  

Level 2

  

Level 3

 

Assets

                

Cash and cash equivalents

 $304,271  $304,271  $  $ 

Restricted cash

  3,659   3,659       

Investment available for sale

  13,327         13,327 
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)

 

2024

  

2023

  

2024

  

2023

 

Balance at beginning of reporting period

 $12,495  $13,215  $13,327  $13,670 

Total gains (realized or unrealized):

                

Included in interest income

  43   41   132   128 

Included in other comprehensive income (loss)

  664   (158)  473   (20)

Purchases, sales, issuances and settlements:

                

Settlements

        (730)  (680)

Balance at end of reporting period

 $13,202  $13,098  $13,202  $13,098 
Fair Value, Liabilities Measured on Recurring and Nonrecurring Basis [Table Text Block]
  

September 30, 2024

  Outstanding  Carrying  Estimated 

Fair Value

(In thousands)

 

Face Amount

  

Value

  

Fair Value

 

Hierarchy

Liabilities

             

Obligation under assessment arrangements

 $18,494  $16,418  $21,221 

Level 3

  

December 31, 2023

  Outstanding  Carrying  Estimated 

Fair Value

(In thousands)

 

Face Amount

  

Value

  

Fair Value

 

Hierarchy

Asset

             

Note receivable

 $419  $419  $419 

Level 3

Liabilities

             

Obligation under assessment arrangements

  20,199   17,752   23,282 

Level 3

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

September 30, 2024

  Outstanding  Carrying  Estimated 

Fair Value

(In thousands)

 

Face Amount

  

Value

  

Fair Value

 

Hierarchy

Credit facility

 $1,194,600  $1,184,423  $1,173,425 

Level 2

4.750% senior notes due 2027

  1,000,000   993,669   988,750 

Level 1

4.750% senior notes due 2031

  900,000   890,900   857,250 

Level 1

Other

  364   364   364 

Level 3

Total debt

 $3,094,964  $3,069,356  $3,019,789  
  

December 31, 2023

  Outstanding  Carrying  Estimated 

Fair Value

(In thousands)

 

Face Amount

  

Value

  

Fair Value

 

Hierarchy

Credit facility

 $1,046,300  $1,032,897  $1,021,206 

Level 2

4.750% senior notes due 2027

  1,000,000   992,208   957,500 

Level 1

4.750% senior notes due 2031

  900,000   889,889   819,000 

Level 1

Other

  504   504   504 

Level 3

Total debt

 $2,946,804  $2,915,498  $2,798,210