Other Income (Expense) - Components (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Investment income, net
Interest and dividend income	$ 9,060	$ 16,380	$ 6,602
Accretion income	684	1,983	1,829
Net realized (loss) gain on the sale of investments	(973)	10,750	795
Other-than-temporary impairment loss	(2,330)
Other-than-temporary impairment loss		(2,288)
Unrealized loss on investments, net	(3,035)
Interest income from investments in SPEs	8,197	8,201	8,202
Interest accrued on notes receivable and other interest	547	384	348
Total investment income, net	12,150	35,410	17,776
Interest expense
Interest expense and amortization of discount and issuance costs for Senior Notes issued by SPE	(8,788)	(8,777)	(8,833)
Other interest expense	(3,052)	(3,368)	(3,462)
Total interest expense	(11,840)	(12,145)	(12,295)
Claim settlement			12,548
Sale of vacation rental management, net		9,800
Other income, net
Accretion income from retained interest investments	1,232	1,100	991
Insurance proceeds	7,199
Hurricane expense	(8,628)
Miscellaneous income, net	1,349	3,613	513
Other income, net	1,152	4,713	1,504
Total other income, net	$ 1,462	$ 37,778	$ 19,533