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Leases (Narrative) (Details) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Mar. 28, 2026 USD ($) | Mar. 28, 2026 USD ($) item
Leases [Abstract] |  |
Initial terms of leases | 20 years | 20 years
Operating lease cost | $ 1,800,000 | $ 3,500,000
Number of shopping centers owned and operated | item |  | 102
Lessor non-cancelable operating lease agreements | 20 years | 20 years
Finance lease cost |  | $ 420,000.0
Finance lease, amortization expense |  | 352,800
Finance lease, interest expense |  | 67,200
Lease extension exercised |  | $ 2,000,000.0
Operating lease weighted average remaining lease term | 14 years 10 months 24 days | 14 years 10 months 24 days
Operating lease weighted average discount rate | 4.30% | 4.30%
Finance lease weighted average discount rate | 6.00% | 6.00%

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