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Financial Instruments - Credit Losses - Narrative (Details) - USD ($) $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Notes receivable, net | $ 62,640 | $ 57,495 |
Uncollectible balance reserved (as a percent) | 100.00% |  |
Uncollectible balance period | 5 years |  |
Uncollected balance of defaulted notes | $ 7,065 |  |
Allowance for credit losses | 3,869 | $ 4,327 | $ 4,923
Notes Receivable, Five Years and Older |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Allowance for credit losses | 1,700 |  |
Notes Receivable, Under Five Years |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Allowance for credit losses | $ 2,200 |  |
Minimum | Notes Receivable |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Service period | 3 years |  |
Maximum | Notes Receivable |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Service period | 10 years |  |

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