| Fiscal period | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|
| Period End Date | 12/31/2024 | 12/31/2023 | 12/31/2022 | 12/31/2021 | 12/31/2020 | 12/31/2019 | 12/31/2018 | 12/31/2017 | 12/31/2016 | 12/31/2015 |
|---|
| Sales | 251.45 | 250.86 | 241.57 | 271.29 | 350.67 | 610.22 | 775.69 | 807.15 | 817.91 | 819.74 |
| Franchise fees | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Oil and gas | 36.95 | 45.07 | 57.55 | 33.00 | 26.26 | 24.44 | -- | -- | -- | -- |
| Other - net | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Investment Management Operations:Management fee income | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Consolidated Affiliated Partnerships:Investment gains/losses | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Consolidated Affiliated Partnerships:Other income | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Insurance premiums and other | 72.69 | 67.27 | 64.54 | 58.61 | 52.68 | 30.08 | 27.63 | 24.94 | 23.00 | 17.23 |
| Media advertising and other | 1.03 | 2.12 | 4.58 | 3.20 | 4.08 | 4.10 | 6.58 | 7.71 | 9.17 | 24.48 |
| Total Revenue | 362.11 | 365.32 | 368.23 | 366.11 | 433.68 | 668.84 | 809.89 | 839.80 | 850.08 | 861.45 |
| Cost of sales | -- | -- | -- | -- | 246.66 | -- | -- | -- | -- | 629.29 |
| Restaurant operating costs | 143.45 | 137.99 | 140.26 | 167.49 | -- | 500.95 | 636.46 | 661.03 | 634.97 | -- |
| Oil and gas production costs | 16.64 | 17.37 | 17.84 | 10.47 | 8.70 | 7.26 | -- | -- | -- | -- |
| Insurance losses and underwriting expenses | 61.37 | 52.77 | 54.65 | 43.09 | 39.22 | 22.27 | 20.83 | 19.72 | 17.48 | 13.36 |
| Media cost of sales | 2.04 | 1.84 | 2.70 | 2.28 | 2.16 | 3.18 | 4.15 | 6.53 | 15.83 | 35.61 |
| Depreciation and amortization | 39.84 | 38.98 | 36.44 | 30.05 | 32.22 | 29.58 | 19.32 | 21.45 | 22.93 | 24.78 |
| Interest expense | 0.77 | 5.11 | 0.40 | 6.04 | 15.54 | -- | -- | -- | -- | -- |
| Interest expense on notes payable | 5.36 | 0.68 | 5.49 | 1.12 | -- | -- | -- | -- | -- | -- |
| General and Administrative | 75.67 | 77.00 | 70.61 | 76.02 | 76.36 | 100.15 | 132.91 | 130.81 | 127.26 | 135.13 |
| Marketing | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Rent | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Other operating income | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Pre-opening costs | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Impairment of intangible assets | -- | (3.95) | (3.52) | (4.64) | -- | (8.19) | -- | -- | -- | -- |
| Gain (loss) on disposal of assets | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Gain on sale of oil and gas properties | 16.70 | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Asset impairments and provision for restaurant closings | (1.11) | -- | -- | -- | (23.65) | -- | -- | -- | -- | -- |
| Total Operating Expense | 329.55 | 322.12 | 331.91 | -- | 444.50 | 671.57 | 813.67 | -- | -- | 838.18 |
| Interest | -- | -- | -- | -- | -- | 12.44 | 11.68 | 11.04 | 11.45 | 11.94 |
| Interest on obligations under leases | -- | -- | -- | -- | -- | 7.82 | 8.21 | 9.08 | 9.48 | 9.42 |
| Other than temporary impairment losses on investments | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Loss (gain) on disposal of property | -- | 13.56 | -- | -- | -- | -- | -- | -- | -- | -- |
| Loss on sale or abandonment of assets | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Investment gains | 0.34 | 2.21 | (3.39) | 6.40 | 3.64 | -- | -- | -- | -- | -- |
| Realized investment gains/losses | -- | -- | -- | 10.95 | -- | -- | -- | -- | (0.31) | -- |
| Biglari Holdings investment gains | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Consolidated affiliated partnerships investment gains and other income | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Investment partnership gains | (41.06) | 19.44 | (75.95) | -- | (43.03) | 78.13 | 40.41 | 6.97 | 135.89 | (39.36) |
| Interest, dividend and other investment income | -- | -- | -- | -- | -- | -- | -- | -- | -- | 0.01 |
| Other income (expense) | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Provision for restaurant closings | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Pre-opening costs | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Loss on debt extinguishment | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Derivative gains/losses | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Total Non-Operating Income/Expense | -- | 21.65 | (79.35) | -- | (39.39) | 57.88 | 20.53 | -- | 114.66 | (37.43) |
| Earnings before income taxes | (8.15) | 64.85 | (43.03) | 42.27 | (50.20) | 55.14 | 16.76 | (12.89) | 146.26 | -- |
| Current: Federal | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Current: State | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Deferred | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Income taxes | (4.40) | 9.31 | (10.72) | 6.79 | (12.21) | 9.76 | (2.64) | (62.96) | 46.81 | (21.59) |
| Noncontrolling interest | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Income (loss) from Continuing Operations | (3.76) | 55.54 | (32.31) | -- | -- | -- | -- | -- | -- | -- |
| Loss from Operations, net of income taxes | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Earnings Before Cumulative Effect Of Change in Accounting | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Net earnings (loss) | -- | 55.54 | (32.31) | 35.48 | (37.99) | 45.38 | 19.39 | -- | 99.45 | (15.84) |
| Less: Earnings attributable to noncontrolling interest | -- | 0.59 | (0.29) | -- | -- | -- | -- | -- | -- | -- |
| Less: Earnings attributable to redeemable noncontrolling interest | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Earnings/loss attributable to redeemable noncontrolling interests: Income allocation | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Earnings attributable to redeemable noncontrolling interest:Incentive fee | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Net income (loss) Available to Common Shareholders | (3.76) | 54.95 | (32.02) | 35.48 | (37.99) | 45.38 | 19.39 | 50.07 | 99.45 | (15.84) |
| EPS (Basic) : From continuing operations | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Net Earnings Per Share (Basic) | (13.45) | 189.49 | (107.43) | 111.83 | (110.05) | 131.64 | 55.71 | 40.80 | 81.37 | (10.18) |
| EPS (Diluted) : From continuing operations | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Net Earnings Per Share (Diluted) | (13.45) | 189.49 | (107.43) | 111.83 | (110.05) | 131.64 | 55.71 | 40.77 | 81.28 | (10.18) |
| Weighted Average Shares Outstanding (Basic) | 0.28 | 0.29 | 0.30 | 0.32 | 0.35 | 0.34 | 0.35 | 1.23 | 1.22 | 1.56 |
| Weighted Average Shares Outstanding (Diluted) | 0.28 | 0.29 | 0.30 | 0.32 | 0.35 | 0.34 | 0.35 | 1.23 | 1.22 | 1.56 |