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Note 14 - Long-term Debt and Credit Arrangements (Tables)
9 Months Ended
Sep. 30, 2020
Notes Tables  
Schedule of Long-term Debt Instruments [Table Text Block]

(in thousands)

 

September 30, 2020

  

December 31, 2019

  

September 30, 2019

 

2.75% Convertible Notes

 $198,606  $193,696  $ 

Credit Agreement - term loan

  133,125   138,750   140,625 

Credit Agreement - revolving credit facility

  75,000   25,000   250,000 

Debt issuance costs and other

  7,166   6,906   12,479 

Total debt

  413,897   364,352   403,104 

Less current maturities

  8,253   8,244   8,263 

Total long-term debt

 $405,644  $356,108  $394,841