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v3.25.3

Revolving Notes - Additional Information (Detail) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Aug. 31, 2025 | Aug. 31, 2024
Line of Credit Facility [Line Items] |  |
Repayments of revolving notes in 2025 | $ 183.3 |
Repayments of revolving notes in 2026 | 334.6 |
Repayments of revolving notes in 2027 | 401.3 |
European |  |
Line of Credit Facility [Line Items] |  |
Line of credit, guaranteed amount | 35.1 |
Mexican |  |
Line of Credit Facility [Line Items] |  |
Line of credit facility maximum capacity | $ 56.0 |
Minimum | European |  |
Line of Credit Facility [Line Items] |  |
Line of credit maturity date | 2025-10 |
Minimum | Mexican |  |
Line of Credit Facility [Line Items] |  |
Line of credit maturity date | 2026-06 |
Maximum | European |  |
Line of Credit Facility [Line Items] |  |
Line of credit maturity date | 2026-09 |
Maximum | Mexican |  |
Line of Credit Facility [Line Items] |  |
Line of credit maturity date | 2027-03 |
WIBOR | Minimum | European |  |
Line of Credit Facility [Line Items] |  |
Debt instrument, percentage points added to the reference rate | 1.10% |
WIBOR | Maximum | European |  |
Line of Credit Facility [Line Items] |  |
Debt instrument, percentage points added to the reference rate | 1.40% |
EURIBOR | European |  |
Line of Credit Facility [Line Items] |  |
Debt instrument, percentage points added to the reference rate | 1.90% |
Revolving Line of Credit, 1st Component of Senior Secured Credit Facilities | North American |  |
Line of Credit Facility [Line Items] |  |
Line of credit facility maximum capacity | $ 600.0 |
Aggregate amount available to draw down | 389.5 |
Letter of credit facility outstanding amount | 5.4 | $ 5.9
Revolving Line of Credit, 1st Component of Senior Secured Credit Facilities | European |  |
Line of Credit Facility [Line Items] |  |
Line of credit facility maximum capacity | 98.3 |
Aggregate amount available to draw down | 20.7 |
Revolving Line of Credit, 1st Component of Senior Secured Credit Facilities | Mexican |  |
Line of Credit Facility [Line Items] |  |
Line of credit facility maximum capacity | 156.0 |
Aggregate amount available to draw down | $ 86.0 |
Joint venture partner each guaranteed percentage | 50.00% |
Revolving Line of Credit, 1st Component of Senior Secured Credit Facilities | Minimum | North American |  |
Line of Credit Facility [Line Items] |  |
Line of credit maturity date | 2026-08 |
Revolving Line of Credit, 1st Component of Senior Secured Credit Facilities | Maximum | North American |  |
Line of Credit Facility [Line Items] |  |
Line of credit maturity date | 2030-05 |
Revolving Line of Credit, 1st Component of Senior Secured Credit Facilities | Prime Rate | North American |  |
Line of Credit Facility [Line Items] |  |
Debt instrument, percentage points added to the reference rate | 0.50% |
Revolving Line of Credit, 1st Component of Senior Secured Credit Facilities | SOFR Adjustment | North American |  |
Line of Credit Facility [Line Items] |  |
Debt instrument, percentage points added to the reference rate | 0.10% |
Mexican Railcar Manufacturing Operations Line of Credit 1, 3rd Component of Senior Secured Credit Facilities | Mexican |  |
Line of Credit Facility [Line Items] |  |
Debt instrument, percentage points added to the reference rate | 4.25% |
Mexican Railcar Manufacturing Operations Line of Credit 2, 3rd Component of Senior Secured Credit Facilities | Mexican |  |
Line of Credit Facility [Line Items] |  |
Debt instrument, percentage points added to the reference rate | 1.96% |

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