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Accounts Receivable (Tables)
6 Months Ended
Nov. 30, 2023
Accounts Receivable  
Schedule of accounts receivable

November 30, 

May 31, 

    

2023

    

2023

U.S. Government contracts:

 

  

 

  

Trade receivables

$

16.6

$

13.1

Unbilled receivables

 

18.2

 

18.9

 

34.8

 

32.0

All other customers:

 

 

Trade receivables

 

185.0

 

179.7

Unbilled receivables

 

26.6

 

29.6

 

211.6

 

209.3

$

246.4

$

241.3