| Dec 31,
2020 | Dec 31,
2021 | Dec 31,
2022 | Dec 31,
2023 | Dec 31,
2024 |
|---|
| Net loss | - | - | -919 | -826 | -664 |
|---|
| Depreciation and amortization | 43 | 65 | 212 | 564 | 409 |
|---|
| Stock-based compensation expense | 135 | 335 | 550 | 649 | 596 |
|---|
| Gain on repayment of convertible note | - | - | - | - | 61 |
|---|
| Asset Impairment Charges | - | - | - | - | 23 |
|---|
| Other | 3 | 14 | 21 | 25 | 23 |
|---|
| Accounts receivable, net | 63 | 65 | 10 | -22 | -37 |
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| Prepaid expenses and other | - | - | - | -20 | 11 |
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| Other assets | 2 | 7 | -40 | -45 | 3 |
|---|
| Accounts payable | -3 | 2 | -18 | -6 | 1 |
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| Accrued expenses and other | 42 | 35 | -1 | -21 | -7 |
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| Publisher payables | 45 | 55 | -50 | -61 | 9 |
|---|
| Other long-term liabilities | 1 | -3 | -30 | -47 | -48 |
|---|
| Deferred revenue | 37 | 16 | 167 | -128 | 11 |
|---|
| Net cash provided by (used in) operating activities | 20 | -111 | -59 | 235 | 316 |
|---|
| Purchases of short-term investments | 482 | 520 | - | 0 | - |
|---|
| Proceeds from principal repayments and maturities of short-term investments | 2 | 19 | - | 103 | - |
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| Purchases of non-marketable investments | 1 | 5 | 15 | 3 | - |
|---|
| Sales of non-marketable investments | - | - | 1 | - | - |
|---|
| Purchases of intangible assets | 1 | - | - | - | 13 |
|---|
| Purchases of property and equipment | 40 | 42 | 57 | 56 | 30 |
|---|
| Business acquisitions, net of cash acquired | 52 | 1,580 | -122 | - | - |
|---|
| Net cash provided by (used in) investing activities | -575 | -1,837 | 723 | 44 | -42 |
|---|
| Proceeds from Convertible Debt | - | 1,725 | 1,000 | - | - |
|---|
| Payment of debt issuance costs | 0 | 23 | 0 | - | - |
|---|
| Proceeds from Contributed Capital | - | - | 210 | - | - |
|---|
| Repayments of convertible note | - | - | - | - | 415 |
|---|
| Repurchase and retirement of common stock | 0 | - | 1,500 | 250 | - |
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| Proceeds from issuance of common stock from employee equity plans | - | - | - | 76 | 77 |
|---|
| Net cash used in financing activities | 1,701 | 1,721 | -227 | -174 | -338 |
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| Effect of foreign exchange rate changes on cash, cash equivalents, and restricted cash | - | - | - | -6 | -11 |
|---|
| Increase (decrease) in cash, cash equivalents, and restricted cash | 1,147 | -227 | 439 | 99 | -76 |
|---|
| Cash paid for interest | 1 | 0 | - | 20 | 20 |
|---|
| Income Taxes Paid, Net | 20 | 6 | 25 | 22 | 26 |
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| Operating Lease, Payments | - | - | 28 | 43 | 50 |
|---|
| Fair value of common stock issued as consideration for business and asset acquisitions | - | - | 2,932 | - | - |
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| Assets acquired under operating lease | - | - | 21 | 44 | 24 |
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