Receivables and Allowance for Credit Losses - Past Due Balances Of Mezzanine And Other Notes Receivable (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Financing Receivable, Credit Quality Indicator [Line Items]
Total notes receivable	$ 108,282	$ 118,215
Senior
Financing Receivable, Credit Quality Indicator [Line Items]
Total notes receivable	85,919	95,466
Subordinated
Financing Receivable, Credit Quality Indicator [Line Items]
Total notes receivable	17,004	17,075
Unsecured
Financing Receivable, Credit Quality Indicator [Line Items]
Total notes receivable	5,359	5,674
Total Past Due
Financing Receivable, Credit Quality Indicator [Line Items]
Total notes receivable	18,536	17,508
Total Past Due | Senior
Financing Receivable, Credit Quality Indicator [Line Items]
Total notes receivable	15,200	15,200
Total Past Due | Subordinated
Financing Receivable, Credit Quality Indicator [Line Items]
Total notes receivable	2,936	2,209
Total Past Due | Unsecured
Financing Receivable, Credit Quality Indicator [Line Items]
Total notes receivable	400	99
1-30 days Past Due
Financing Receivable, Credit Quality Indicator [Line Items]
Total notes receivable	0	20
1-30 days Past Due | Senior
Financing Receivable, Credit Quality Indicator [Line Items]
Total notes receivable	0	0
1-30 days Past Due | Subordinated
Financing Receivable, Credit Quality Indicator [Line Items]
Total notes receivable	0	0
1-30 days Past Due | Unsecured
Financing Receivable, Credit Quality Indicator [Line Items]
Total notes receivable	0	20
31-89 days Past Due
Financing Receivable, Credit Quality Indicator [Line Items]
Total notes receivable	2,936	15,240
31-89 days Past Due | Senior
Financing Receivable, Credit Quality Indicator [Line Items]
Total notes receivable	0	15,200
31-89 days Past Due | Subordinated
Financing Receivable, Credit Quality Indicator [Line Items]
Total notes receivable	2,936	0
31-89 days Past Due | Unsecured
Financing Receivable, Credit Quality Indicator [Line Items]
Total notes receivable	0	40
> 90 days Past Due
Financing Receivable, Credit Quality Indicator [Line Items]
Total notes receivable	15,600	2,249
> 90 days Past Due | Senior
Financing Receivable, Credit Quality Indicator [Line Items]
Total notes receivable	15,200	0
> 90 days Past Due | Subordinated
Financing Receivable, Credit Quality Indicator [Line Items]
Total notes receivable	0	2,209
> 90 days Past Due | Unsecured
Financing Receivable, Credit Quality Indicator [Line Items]
Total notes receivable	400	40
Current
Financing Receivable, Credit Quality Indicator [Line Items]
Total notes receivable	89,746	100,706
Current | Senior
Financing Receivable, Credit Quality Indicator [Line Items]
Total notes receivable	70,719	80,266
Current | Subordinated
Financing Receivable, Credit Quality Indicator [Line Items]
Total notes receivable	14,068	14,866
Current | Unsecured
Financing Receivable, Credit Quality Indicator [Line Items]
Total notes receivable	$ 4,959	$ 5,574