Segment Information - Additional Information (Detail) |
9 Months Ended |
|---|---|
|
Jun. 30, 2025
ft
| |
| Segment Reporting Information [Line Items] | |
| Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration] | srt:ChiefExecutiveOfficerMember |
| Segment Reporting, CODM, Profit (Loss) Measure, How Used, Description | Our CODM reviews operational income statement information by segment for purposes of making operating decisions, assessing financial performance, and allocating resources. |
| Segment Reporting, No Asset Information [true false] | false |
| Minimum [Member] | |
| Segment Reporting Information [Line Items] | |
| Number of models producing premium yachts | 33 |
| Maximum [Member] | |
| Segment Reporting Information [Line Items] | |
| Number of models producing premium yachts | 60 |