Other Income, Net - Components (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Investment income, net
Interest, dividend and accretion income	$ 856	$ 716	$ 1,696	$ 1,177
Interest income from investments in SPEs	2,003	2,003	4,006	4,006
Interest earned on notes receivable and other interest	547	464	1,145	921
Total investment income, net	3,406	3,183	6,847	6,104
Interest expense
Interest incurred for project financing and other interest expense	(6,301)	(4,994)	(12,638)	(8,990)
Interest expense and amortization of discount and issuance costs for Senior Notes issued by SPE	(2,218)	(2,213)	(4,434)	(4,426)
Total interest expense	(8,519)	(7,207)	(17,072)	(13,416)
Gain on contributions to unconsolidated joint ventures		27	11	557
Equity in income from unconsolidated joint ventures	5,411	6,038	12,771	9,700
Other income (expense), net
Accretion income from retained interest investments		1,101		1,495
Miscellaneous (expense) income, net	(102)	366	(562)	686
Other (expense) income, net	(102)	1,467	(562)	2,181
Total other income (expense), net	$ 196	$ 3,508	$ 1,995	$ 5,126