| Dec 31, 2018 | Dec 31, 2019 | Dec 31, 2020 | Dec 31, 2021 | Dec 31, 2022 | Dec 31, 2023 | Dec 31, 2024 |
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| Net Loss | -53 | -17 | -55 | -129 | -465 | -135 | -189 |
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| Credit loss expense | - | - | 1 | 2 | 2 | 2 | 6 |
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| Depreciation and amortization | 3 | 5 | 8 | 30 | 38 | 26 | 26 |
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| Capitalized Contract Cost, Amortization, Interest Expense | 0 | 0 | 0 | 1 | 2 | 2 | 2 |
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| Amortization of right-of-use asset | - | - | 4 | 6 | 6 | 3 | 2 |
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| Goodwill and Intangible Asset Impairment | - | - | - | - | 453 | 71 | 132 |
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| Loss on divestiture | - | - | - | - | - | -7 | - |
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| Amortization of Debt Discount (Premium) | - | - | - | 10 | - | - | -13 |
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| Stock-based compensation expense | 27 | 16 | 32 | 50 | 45 | 41 | 40 |
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| Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability | - | - | - | 1 | -128 | 1 | 0 |
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| Other non-cash expense (income), net | -5 | -1 | 1 | 1 | -7 | 4 | -1 |
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| Income tax benefit | - | - | - | 8 | -1 | - | - |
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| Accounts receivable and contracts assets, net | 9 | 26 | 2 | 28 | 5 | 8 | -12 |
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| Prepaid expenses and other assets | 2 | 2 | 0 | 1 | -1 | -2 | -1 |
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| Accounts payable | 1 | -1 | 0 | 1 | -1 | 0 | 0 |
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| Other accrued expenses | 3 | 6 | -1 | -1 | -10 | -7 | -7 |
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| Partner Share liability | 4 | 14 | -4 | 9 | 2 | 0 | -16 |
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| Customer Incentive liability | 4 | 8 | 4 | 13 | 1 | -1 | -7 |
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| Net cash used in operating activities | -19 | 11 | -8 | -39 | -54 | -0 | -9 |
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| Acquisition of property and equipment | 6 | 8 | 5 | 3 | 1 | 1 | 2 |
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| Acquisition of patents | 0 | 0 | 0 | 0 | 0 | - | - |
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| Capitalized software development costs | 1 | 3 | 5 | 9 | 12 | 12 | 18 |
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| Business acquisitions, net of cash acquired | - | - | - | 494 | 2 | - | - |
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| Proceeds from Divestiture of Businesses, Net of Cash Divested | - | - | - | - | - | 2 | 1 |
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| Net cash used in investing activities | -7 | -11 | -10 | -507 | -16 | -10 | -19 |
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| Proceeds from issuance of debt | - | - | - | - | - | 30 | 173 |
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| Principal payments of debt | 53 | 47 | 0 | - | 0 | 0 | 199 |
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| Proceeds from Derivative Instrument, Financing Activities | - | - | - | - | - | - | 0 |
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| Proceeds from issuance of common stock | 72 | 91 | 10 | 486 | 0 | 0 | 49 |
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| Settlement of contingent consideration | - | - | - | - | - | 50 | 14 |
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| Repurchase of common stock | - | - | - | - | 40 | - | - |
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| Equity issuance costs | 2 | 0 | - | 0 | 0 | - | 0 |
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| Debt issuance costs | 0 | 0 | 0 | 0 | 0 | - | 6 |
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| Net cash provided by (used in) financing activities | 65 | 44 | 206 | 486 | -40 | -20 | 1 |
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| Effect of exchange rates on cash, cash equivalents and restricted cash | -0 | 0 | 0 | -1 | -2 | 0 | -0 |
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| Net decrease in cash, cash equivalents and restricted cash | 39 | 45 | 189 | -60 | -112 | -30 | -26 |
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| Cash paid for interest | - | - | - | - | 2 | 4 | 6 |
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| Noncash Transaction, Stock Issuance | - | - | - | - | - | - | 27 |
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