Receivables and Allowance for Credit Losses - Past Due Balances Of Mezzanine And Other Notes Receivable (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Financing Receivable, Past Due [Line Items]
Notes receivable	$ 111,445	$ 118,215
Senior
Financing Receivable, Past Due [Line Items]
Notes receivable	86,417	95,466
Subordinated
Financing Receivable, Past Due [Line Items]
Notes receivable	20,028	17,075
Unsecured
Financing Receivable, Past Due [Line Items]
Notes receivable	5,000	5,674
Total Past Due
Financing Receivable, Past Due [Line Items]
Notes receivable	44,845	17,508
Total Past Due | Senior
Financing Receivable, Past Due [Line Items]
Notes receivable	44,049	15,200
Total Past Due | Subordinated
Financing Receivable, Past Due [Line Items]
Notes receivable	396	2,209
Total Past Due | Unsecured
Financing Receivable, Past Due [Line Items]
Notes receivable	400	99
1- 30 days Past Due
Financing Receivable, Past Due [Line Items]
Notes receivable	0	20
1- 30 days Past Due | Senior
Financing Receivable, Past Due [Line Items]
Notes receivable	0	0
1- 30 days Past Due | Subordinated
Financing Receivable, Past Due [Line Items]
Notes receivable	0	0
1- 30 days Past Due | Unsecured
Financing Receivable, Past Due [Line Items]
Notes receivable	0	20
31-89 days Past Due
Financing Receivable, Past Due [Line Items]
Notes receivable	15,950	15,240
31-89 days Past Due | Senior
Financing Receivable, Past Due [Line Items]
Notes receivable	15,950	15,200
31-89 days Past Due | Subordinated
Financing Receivable, Past Due [Line Items]
Notes receivable	0	0
31-89 days Past Due | Unsecured
Financing Receivable, Past Due [Line Items]
Notes receivable	0	40
> 90 days Past Due
Financing Receivable, Past Due [Line Items]
Notes receivable	28,895	2,249
> 90 days Past Due | Senior
Financing Receivable, Past Due [Line Items]
Notes receivable	28,099	0
> 90 days Past Due | Subordinated
Financing Receivable, Past Due [Line Items]
Notes receivable	396	2,209
> 90 days Past Due | Unsecured
Financing Receivable, Past Due [Line Items]
Notes receivable	400	40
Current
Financing Receivable, Past Due [Line Items]
Notes receivable	66,600	100,707
Current | Senior
Financing Receivable, Past Due [Line Items]
Notes receivable	42,368	80,266
Current | Subordinated
Financing Receivable, Past Due [Line Items]
Notes receivable	19,632	14,866
Current | Unsecured
Financing Receivable, Past Due [Line Items]
Notes receivable	$ 4,600	$ 5,575