v3.26.1
Summary of Significant Accounting Policies - Contract Assets, Liabilities and Performance Obligations (Details) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Feb. 28, 2025
Aug. 31, 2024
May 31, 2024
May 31, 2026
May 31, 2025
May 31, 2024
Contract assets and liabilities            
Contract assets - current       $ 148.4 $ 140.3  
Contract assets - non-current       42.9 28.4  
Deferred revenue - current       (50.3) (40.3)  
Deferred revenue on long-term contracts       (6.9) (6.4)  
Net contract assets       134.1 122.0  
Change in contract assets - current       8.1    
Change in contract assets - non-current       14.5    
Change in deferred revenue - current       (10.0)    
Change in deferred revenue on long-term contracts       (0.5)    
Change in net contract assets       12.1    
Change in contract assets       (8.1) 26.6 $ 17.1
Changes in deferred revenue            
Deferred revenue at beginning of period   $ (21.9)   (46.7) (21.9)  
Revenue deferred       (490.0) (321.9)  
Revenue recognized       (498.3) (307.6)  
Other       (18.8) (10.5)  
Deferred revenue at end of period     $ (21.9) (57.2) (46.7) (21.9)
Remaining Performance Obligations            
Remaining performance obligation       $ 777.0    
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-06-01            
Remaining Performance Obligations            
Remaining performance obligation (as a percent)       70.00%    
Expected timing of satisfaction of remaining performance obligation       1 year    
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2028-06-01            
Remaining Performance Obligations            
Remaining performance obligation (as a percent)       20.00%    
Expected timing of satisfaction of remaining performance obligation       1 year    
Termination settlement proposal            
Contract assets and liabilities            
Contract assets with customer $ 13.5          
Termination amount for equipment and other costs $ 1.0          
Air Line Customers | Termination Of Power By The Hour Program            
Contract assets and liabilities            
Termination charge     4.8      
Change in contract assets     7.8      
Change in contract revenue     7.5      
Repair reserves     2.5     $ 2.5
Obligation to purchase the rotable assets     $ 5.5      
Asset purchase obligation of purchase price         $ 18.7  
U.S. Government Customer | Next Generation Pallet Contract            
Contract assets and liabilities            
Change in contract assets   9.5        
Equipment and inventory expensed   $ 12.7