Other (Expense) Income - Components (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Investment (loss) income, net
Interest and dividend income	$ 1,043	$ 1,813
Accretion income	17	61
Net realized loss on the sale of investments	(48)	(2)
Unrealized (loss) gain on investments, net	(4,761)	2,049
Interest income from investments in SPEs	2,046	2,049
Interest accrued on notes receivable and other interest	94	76
Total investment (loss) income, net	(1,609)	6,046
Interest expense
Interest expense and amortization of discount and issuance costs for Senior Notes issued by SPE	(2,202)	(2,199)
Other interest expense	(1,143)	(743)
Total interest expense	(3,345)	(2,942)
Other income (expense), net
Gain on land contribution to equity method investment	4,277	1,472
Accretion income from retained interest investments	344	320
Gain on insurance recovery		279
Loss from hurricane damage	55	322
Miscellaneous expense, net	(34)	(51)
Other income, net	4,532	1,698
Total other (expense) income, net	$ (422)	$ 4,802