v3.26.3
Business Segment Information - Financial information (Details) - USD ($)
$ in Millions
3 Months Ended
Aug. 31, 2026
Aug. 31, 2025
May 31, 2026
Business Segment Information      
Capital expenditures $ 11.8 $ 8.7  
Depreciation and amortization 26.6 19.1  
Earnings from joint ventures 2.8 3.0  
Total assets 3,426.9   $ 3,355.9
Investments in joint ventures 51.5   49.0
Discontinued operations | Corporate      
Business Segment Information      
Capital expenditures 0.9 0.7  
Depreciation and amortization 6.0 4.7  
Total assets 121.2   124.8
Parts Supply      
Business Segment Information      
Capital expenditures 0.4 0.3  
Depreciation and amortization 8.3 2.9  
Earnings from joint ventures 1.8 2.9  
Total assets 1,169.3   1,099.9
Investments in joint ventures 17.6   15.8
Repair, Engineering, and Software      
Business Segment Information      
Capital expenditures 8.9 5.8  
Depreciation and amortization 10.1 8.1  
Earnings from joint ventures 1.0 0.1  
Total assets 1,586.8   1,598.2
Investments in joint ventures 33.9   33.2
Government Solutions      
Business Segment Information      
Capital expenditures 1.6 1.9  
Depreciation and amortization 2.1 1.6  
Total assets 309.5   282.8
Legacy Commercial Programs      
Business Segment Information      
Depreciation and amortization 0.1 $ 1.8  
Total assets $ 240.1   $ 250.2