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Revenue Recognition - Summary of Percentage on Timing of Revenue Recognition by Reportable Segment (Details) | 3 Months Ended | 6 Months Ended
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Mar. 31, 2025 | Mar. 31, 2024 | Mar. 31, 2025 | Mar. 31, 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 | 88.50% | 87.40% | 86.50% | 86.60%
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 | 11.50% | 12.60% | 13.50% | 13.40%

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