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Financial Instruments - Credit Losses - Schedule of Disaggregation of Defaulted Notes By Year Of Origination (Details)
$ in Thousands
Sep. 30, 2023
USD ($)
Credit Loss [Abstract]  
2023 $ 1,535
2022 285
2021 1,842
2020 423
2019 319
2018 and prior 2,172
Total $ 6,576