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Credit Losses (Tables) | 9 Months Ended
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Sep. 30, 2021
Credit Loss [Abstract] |
Credit Loss Allowance Activity [Table] | The following tables summarize our allowance for expected credit losses by pooled asset for the nine-months ended September 30, 2021 and 2020:
September 30, 2021 |  |  |  |  |  |  |  |
|  | December 31, 2020 |  | Provision for expected credit losses |  | Write-offs |  | September 30, 2021
Premiums Receivable |  | $ | 140 |  |  | $ | (176) |  |  | $ | 61 |  |  | $ | 25 |
Reinsurance Recoverables |  | 386 |  |  | 382 |  |  | — |  |  | 768 |
Note Receivable |  | 20 |  |  | (20) |  |  | — |  |  | — |
Total |  | $ | 546 |  |  | $ | 186 |  |  | $ | 61 |  |  | $ | 793 |
September 30, 2020 |  |  |  |  |  |  |  |
|  | December 31, 2019 |  | Provision for expected credit losses |  | Write-offs |  | September 30, 2020
Premiums Receivable |  | $ | 165 |  |  | $ | (235) |  |  | $ | 202 |  |  | $ | 132 |
Reinsurance Recoverables |  | 256 |  |  | 112 |  |  | — |  |  | 368 |
Note Receivable |  | 141 |  |  | (90) |  |  | — |  |  | 51 |
Total |  | $ | 562 |  |  | $ | (213) |  |  | $ | 202 |  |  | $ | 551 |

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