Allowance for Doubtful Accounts - Notes Receivable Disaggregated by Vintage Year (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Current-period gross write-offs
2023			$ 0
2022			189
2021			0
2020			0
2019			0
Prior			2,346
Total			2,535
Current-period recoveries
2023			0
2022			0
2021			0
2020			0
2019			0
Prior			0
Total			0
Current-period net write-offs
2023			0
2022			189
2021			0
2020			0
2019			0
Prior			2,346
Total	$ 2,322	$ 6,718	2,535	$ 7,256
Standard notes receivable
Financing Receivable, Credit Quality Indicator [Line Items]
2023	20,657		20,657
2022	27,457		27,457
2021	2,943		2,943
2020	1,537		1,537
2019	53		53
Prior	21,031		21,031
Total	73,678		73,678
Current-period net write-offs
Total	1,529	6,718	1,689	6,773
Elevated risk notes receivable
Financing Receivable, Credit Quality Indicator [Line Items]
2023	0		0
2022	0		0
2021	7,190		7,190
2020	0		0
2019	0		0
Prior	0		0
Total	7,190		7,190
Current-period net write-offs
Total	$ 793	$ 0	$ 846	$ 483