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Financial Instruments - Credit Losses (Tables) | 9 Months Ended
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Sep. 30, 2021
Credit Loss [Abstract] |
Financing Receivable Credit Quality Indicators | The following table presents the disaggregation of defaulted notes by year of origination as of September 30, 2021:
(Expressed in thousands) |
| As of September 30, 2021
2021 | $ | 980 |
2020 | 644 |
2019 | 444 |
2018 | 173 |
2017 | 662 |
2016 and prior | 3,491 |
Total | $ | 6,394 |
Financing Receivable, Allowance for Credit Loss | The following table presents activity in the allowance for uncollectibles of defaulted notes for the three and nine months ended September 30, 2021 and 2020:
(Expressed in thousands) |  |  |  |  |  |  |
| For the Three Months Ended September 30, |  | For the Nine Months Ended September 30
| 2021 |  | 2020 |  | 2021 |  | 2020
Beginning balance | $ | 4,701 |  |  | $ | 3,903 |  |  | $ | 4,234 |  |  | $ | 3,673 |
Additions and other adjustments | 28 |  |  | 287 |  |  | 495 |  |  | 517 |
Ending balance | $ | 4,729 |  |  | $ | 4,190 |  |  | $ | 4,729 |  |  | $ | 4,190 |

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- Definition Tabular disclosure of allowance for credit loss on financing receivable. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447 + Details
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- Definition Tabular disclosure of financing receivables by credit quality indicator. The credit quality indicator is a statistic about the credit quality of financing receivables. Examples include, but not limited to, consumer credit risk scores, credit-rating-agency ratings, an entity's internal credit risk grades, loan-to-value ratios, collateral, collection experience and other internal metrics. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=124255953&loc=SL82919230-210447 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 29 -URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953659-111524 + Details
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