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Note 12 - Fair Value Measurements (Tables)
12 Months Ended
Dec. 31, 2024
Notes Tables  
Fair Value, by Balance Sheet Grouping [Table Text Block]
  

December 31, 2024

 

(In thousands)

 

Balance

  

Level 1

  

Level 2

  

Level 3

 

Assets

                

Cash and cash equivalents

 $316,688  $316,688  $  $ 

Restricted cash

  4,676   4,676       

Investment available for sale

  12,553         12,553 
  

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]
  

Year Ended December 31,

 

(In thousands)

 

2024

  

2023

 

Balance at beginning of reporting period

 $13,327  $13,670 

Total gains (losses) (realized or unrealized):

        

Included in interest income

  176   172 

Included in other comprehensive income (loss)

  (220)  165 

Purchases, sales, issuances and settlements:

        

Settlements

  (730)  (680)

Balance at end of reporting period

 $12,553  $13,327 
Fair Value, Liabilities Measured on Recurring and Nonrecurring Basis [Table Text Block]
  

December 31, 2024

 
  Outstanding Face  Carrying  Estimated 

Fair Value

 

(In thousands)

 

Amount

  

Value

  

Fair Value

 

Hierarchy

 

Liabilities

              

Obligation under assessment arrangements

 $18,014  $16,057  $20,719 

Level 3

 
  

December 31, 2023

 
  Outstanding Face  Carrying  Estimated 

Fair Value

 

(In thousands)

 

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]
  

December 31, 2024

 
  Outstanding Face  Carrying  Estimated 

Fair Value

 

(In thousands)

 

Amount

  

Value

  

Fair Value

 

Hierarchy

 

Credit Facility

 $1,300,300  $1,291,191  $1,279,428 

Level 2

 

4.750% senior notes due 2027

  1,000,000   994,156   968,750 

Level 1

 

4.750% senior notes due 2031

  900,000   891,237   832,500 

Level 1

 

Other

  6   6   6 

Level 3

 

Total debt

 $3,200,306  $3,176,590  $3,080,684   
  

December 31, 2023

 
  Outstanding Face  Carrying  Estimated 

Fair Value

 

(In thousands)

 

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