| Dec 31, 2020 | Dec 31, 2021 | Dec 31, 2022 | Dec 31, 2023 | Dec 31, 2024 |
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| Cash and cash equivalents | 24 | 51 | 15 | 17 | 43 |
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| Accounts Receivable, after Allowance for Credit Loss, Current | 96 | 76 | 60 | 54 | 143 |
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| Prepaid expenses and other current assets | 8 | 10 | 6 | 4 | 4 |
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| Total current assets | 128 | 137 | 80 | 75 | 190 |
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| Intangible assets, net | 16 | 13 | 33 | 26 | 20 |
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| Goodwill | 18 | 18 | 48 | 48 | 48 |
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| Other assets | 16 | 19 | 9 | 6 | 5 |
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| Total assets | 210 | 290 | 170 | 154 | 262 |
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| Accounts payable | 98 | 62 | 54 | 56 | 106 |
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| Accrued expenses | 9 | 14 | 14 | 12 | 19 |
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| Current portion of long-term debt | - | 9 | 9 | 12 | 9 |
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| Total current liabilities | 107 | 84 | 77 | 80 | 133 |
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| Long-term debt, net of current portion | 183 | 178 | 174 | 162 | 154 |
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| Deferred Income Tax Liabilities, Net | 22 | 85 | - | - | 7 |
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| Other long-term liabilities | 3 | 4 | 5 | 6 | 15 |
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| Total liabilities | 315 | 351 | 256 | 248 | 309 |
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| Class A Common | 0 | 0 | 0 | 0 | 1 |
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| Class B Common | 0 | 0 | 0 | 0 | 0 |
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| Additional paid-in capital | 385 | 420 | 466 | 512 | 508 |
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| Accumulated deficit | -419 | -424 | -482 | -523 | -506 |
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| Total stockholders’ equity (deficit) attributable to MediaAlpha, Inc. | -34 | -4 | -16 | -10 | 2 |
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| Non-controlling interests | -71 | -57 | -70 | -84 | -49 |
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| Class A Common | 0 | 0 | 0 | 0 | 1 |
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| Class B Common | 0 | 0 | 0 | 0 | 0 |
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| Total stockholders' deficit | -105 | -62 | -86 | -94 | -46 |
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| Total liabilities and stockholders’ deficit | 210 | 290 | 170 | 154 | 262 |
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