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Available-for-Sale-Securities | 9 Months Ended
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Sep. 30, 2022
Debt Securities, Available-for-sale [Abstract] |
Available-for-Sale-Securities | Available-for-Sale-Securities The following table is a summary of available-for-sale securities recorded in cash and cash equivalents or marketable securities in our Consolidated Balance Sheets (in thousands):
| September 30, 2022 |  | December 31, 2021
| Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Estimated Fair Value |  | Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Estimated Fair Value
Corporate debt securities | $ | 39,311 |  |  | $ | — |  |  | $ | (65) |  |  | $ | 39,246 |  |  | $ | 53,135 |  |  | $ | — |  |  | $ | (65) |  |  | $ | 53,070 |
Commercial paper | 14,459 |  |  | — |  |  | — |  |  | 14,459 |  |  | — |  |  | — |  |  | — |  |  | — |
Money market funds | 13,457 |  |  | — |  |  | — |  |  | 13,457 |  |  | 18,124 |  |  | — |  |  | — |  |  | 18,124 |
Municipal debt securities | 170 |  |  | — |  |  | — |  |  | 170 |  |  | 20,263 |  |  | — |  |  | (5) |  |  | 20,258 |
Total | $ | 67,397 |  |  | $ | — |  |  | $ | (65) |  |  | $ | 67,332 |  |  | $ | 91,522 |  |  | $ | — |  |  | $ | (70) |  |  | $ | 91,452 |
Estimated fair values of available-for-sale securities are generally based on prices obtained from commercial pricing services. The following table summarizes the classification of the available-for-sale securities in our Consolidated Balance Sheets (in thousands):
| September 30, 2022 |  | December 31, 2021
Cash equivalents | $ | 23,280 |  |  | $ | 21,129 |
Marketable securities | 44,052 |  |  | 70,323 |
Total | $ | 67,332 |  |  | $ | 91,452 |
The following table summarizes our portfolio of available-for-sale securities by contractual maturity (in thousands):
| September 30, 2022
| Amortized Cost |  | Estimated Fair Value
Less than one year | $ | 67,397 |  |  | $ | 67,332 |
Greater than one year | — |  |  | — |
Total | $ | 67,397 |  |  | $ | 67,332 |

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- References No definition available. + Details
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- Definition The entire disclosure of cash, cash equivalents, and debt and equity securities, including any unrealized or realized gain (loss). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -URI http://asc.fasb.org/topic&trid=2196928 + Details
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