Subsequent Events (Details) $ in Millions	Sep. 30, 2025 restaurant	Sep. 30, 2024 restaurant	Sep. 30, 2023 restaurant	Sep. 30, 2022 restaurant	Sep. 30, 2021 restaurant	Jan. 04, 2021 state restaurant	Dec. 29, 2019 USD ($)
Subsequent Event [Line Items]
Area Development Agreement, Number Of States | state						16
Area Development Agreement, Number Of Restaurants To Be Acquired						500
Area Development Agreement, Prepaid Franchise Fees | $							$ 0.6
Area Development Agreement, Restaurants To Be Opened, Built, And Operated					4	50
Area Development Agreement, Percentage Of New Restaurants To Be In Kentucky, Tennessee And Indiana						80.00%
Subsequent Event | Scenario, Forecast
Subsequent Event [Line Items]
Area Development Agreement, Restaurants To Be Opened, Built, And Operated	12	12	12	10