v3.26.3
Segment Information - Segments Internal Financial Reports (Detail) - USD ($)
$ in Millions
12 Months Ended
Aug. 31, 2026
Aug. 31, 2025
Aug. 31, 2024
Segment Reporting Information [Line Items]      
Revenue $ 2,461.1 $ 3,240.2 $ 3,544.7
Total consolidated revenues 2,461.1 3,240.2 3,544.7
Cost of Revenue 2,127.4 2,632.7 2,986.2
Margin 333.7 607.5 558.5
Selling and administrative 228.5 263.3 247.1
Net loss (gain) on disposition of equipment (38.4) (15.9) (13.1)
Earnings from operations 143.6 360.1 324.5
Assets 4,433.7 4,360.6  
Depreciation and amortization 130.3 121.5 115.6
Capital expenditures 279.3 280.4 398.3
Manufacturing      
Segment Reporting Information [Line Items]      
Revenue 2,266.5 3,046.9 3,371.2
Cost of Revenue 2,051.0 2,562.4 2,921.6
Margin 215.5 484.5 449.6
Selling and administrative 91.0 106.3 90.3
Net loss (gain) on disposition of equipment 3.7 0.8 0.4
Leasing & Fleet Management      
Segment Reporting Information [Line Items]      
Revenue 194.6 193.3 173.5
Cost of Revenue 76.4 70.3 64.6
Margin 118.2 123.0 108.9
Selling and administrative 21.2 26.0 30.7
Net loss (gain) on disposition of equipment (42.1) (16.7) (13.5)
Intersegment Eliminations      
Segment Reporting Information [Line Items]      
Revenue 48.5 99.5 238.0
Cost of Revenue 48.0 85.3 213.0
Margin (0.5) (14.2) (25.0)
Intersegment Eliminations | Manufacturing      
Segment Reporting Information [Line Items]      
Revenue 48.3 98.9 237.0
Cost of Revenue 47.8 84.7 212.1
Margin (0.5) (14.2) (24.9)
Intersegment Eliminations | Leasing & Fleet Management      
Segment Reporting Information [Line Items]      
Revenue 0.2 0.6 1.0
Cost of Revenue 0.2 0.6 0.9
Margin 0.0 (0.0) (0.1)
Corporate, Non-Segment      
Segment Reporting Information [Line Items]      
Earnings from operations (116.3) (131.0) (126.1)
Operating Segments      
Segment Reporting Information [Line Items]      
Revenue 2,509.6 3,339.7 3,782.7
Cost of Revenue 2,175.4 2,718.0 3,199.2
Earnings from operations 259.9 491.1 450.6
Operating Segments | Manufacturing      
Segment Reporting Information [Line Items]      
Revenue 2,314.8 3,145.8 3,608.2
Cost of Revenue 2,098.8 2,647.1 3,133.7
Earnings from operations 120.8 377.4 358.9
Assets 2,065.3 2,085.9  
Depreciation and amortization 85.5 78.4 72.1
Capital expenditures 104.5 139.9 121.3
Operating Segments | Leasing & Fleet Management      
Segment Reporting Information [Line Items]      
Revenue 194.8 193.9 174.5
Cost of Revenue 76.6 70.9 65.5
Earnings from operations 139.1 113.7 91.7
Assets 2,043.7 1,858.4  
Depreciation and amortization 44.8 43.1 43.5
Capital expenditures 174.8 140.5 277.0
Operating Segments | Unallocated, including cash      
Segment Reporting Information [Line Items]      
Assets 324.7 416.3  
Operating Segments | Intersegment Eliminations      
Segment Reporting Information [Line Items]      
Revenue $ (48.5) $ (99.5) $ (238.0)