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Revenue Recognition - Summary of Percentage on Timing of Revenue Recognition by Reportable Segment (Details) | 3 Months Ended | 9 Months Ended
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Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024
Retail Operations [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Revenue | 100.00% | 100.00% | 100.00% | 100.00%
Product Manufacturing [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Revenue | 100.00% | 100.00% | 100.00% | 100.00%
Goods and Services Transferred at a Point in Time [Member] | Retail Operations [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Revenue | 87.00% | 88.90% | 86.80% | 87.50%
Goods and Services Transferred at a Point in Time [Member] | Product Manufacturing [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Revenue | 100.00% | 100.00% | 100.00% | 100.00%
Goods and Services Transferred Over Time [Member] | Retail Operations [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Revenue | 13.00% | 11.10% | 13.20% | 12.50%

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