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Financial Instruments - Credit Losses - Narrative (Details) - USD ($) $ in Thousands | 9 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Sep. 30, 2024 | Jun. 30, 2024 | Dec. 31, 2023 | Sep. 30, 2023 | Jun. 30, 2023 | Dec. 31, 2022
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |  |  |  |
Notes receivable, net | $ 65,580 |  | $ 62,640 |  |  |
Uncollectible balance reserved (as a percent) | 100.00% |  |  |  |  |
Uncollectible balance period (in years) | 5 years |  |  |  |  |
Uncollected balance of defaulted notes | $ 6,049 |  |  |  |  |
Allowance for credit loss | 3,620 | $ 3,853 | $ 3,869 | $ 3,948 | $ 3,814 | $ 4,327
Notes Receivable, Five Years and Older |  |  |  |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |  |  |  |
Allowance for credit loss | 2,000 |  |  |  |  |
Notes Receivable, Under Five Years |  |  |  |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |  |  |  |
Allowance for credit loss | $ 1,600 |  |  |  |  |
Minimum | Notes Receivable |  |  |  |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |  |  |  |
Service period (in years) | 3 years |  |  |  |  |
Maximum | Notes Receivable |  |  |  |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |  |  |  |
Service period (in years) | 9 years |  |  |  |  |

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