Receivables and Allowance for Credit Losses - Schedule Of Notes Receivable (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022	Dec. 31, 2021
Notes Receivable and Allowance for Losses [Line Items]
Notes receivable	$ 110,946	$ 118,215
Less: allowance for credit losses	8,389	10,172	$ 16,779
Total notes receivable, net of allowance for credit losses	102,557	108,043
Current portion, net of allowance for credit losses	52,726	52,466
Long-term portion, net of allowance for credit losses	49,831	55,577
Senior
Notes Receivable and Allowance for Losses [Line Items]
Notes receivable	86,374	95,466
Subordinated
Notes Receivable and Allowance for Losses [Line Items]
Notes receivable	19,592	17,075
Unsecured
Notes Receivable and Allowance for Losses [Line Items]
Notes receivable	$ 4,980	$ 5,674