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Accounts Receivable (Tables)
3 Months Ended
Aug. 31, 2025
Accounts Receivable  
Schedule of accounts receivable

August 31, 

May 31, 

    

2025

    

2025

U.S. Government contracts:

 

  

 

  

Trade receivables

$

32.6

$

26.6

Unbilled receivables

 

9.1

 

13.4

 

41.7

 

40.0

All other customers:

 

 

Trade receivables

 

299.4

 

283.4

Unbilled receivables

 

22.4

 

31.4

 

321.8

 

314.8

$

363.5

$

354.8