Condensed Consolidated Statements Of Operations And Comprehensive Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Revenues
Revenue from customers	$ 74,334	$ 213,840	$ 256,577	$ 407,615
Interest income	19,499	21,518	40,815	42,933
Net gains (losses) on sales of real estate assets	13	9,664	(34)	10,996
Other revenue	473	671	1,047	1,501
Total revenues	94,319	245,693	298,405	463,045
Costs and Expenses
Interest expense	9,502	11,661	19,335	22,809
Recoveries from loan losses, net	(1,525)	(1,424)	(5,037)	(2,385)
Impairment losses	3,305	2,138	31,588	2,756
Selling, general and administrative expenses	59,327	178,843	187,180	301,711
Total costs and expenses	125,891	265,674	367,682	477,165
Equity in net earnings of unconsolidated real estate joint ventures	145	8,759	696	8,742
Other income	409	2,289	640	2,802
Foreign exchange (loss) gain	(6)	(29)	272	(24)
Loss before income taxes	(31,024)	(8,962)	(67,669)	(2,600)
(Provision) benefit for income taxes	(5,627)	1,338	203	(386)
Net income (loss)	(36,651)	(7,624)	(67,466)	(2,986)
Less: Net (loss) income attributable to noncontrolling interests	(851)	4,024	(3,356)	7,163
Net loss attributable to shareholders	$ (35,800)	$ (11,648)	$ (64,110)	$ (10,149)
Basic loss per share	$ (1.96)	$ (0.62)	$ (3.50)	$ (0.54)
Diluted loss per share	$ (1.96)	$ (0.62)	$ (3.50)	$ (0.54)
Basic weighted average number of common shares outstanding	18,298	18,641	18,298	18,643
Diluted weighted average number of common and common equivalent shares outstanding	18,298	18,641	18,298	18,643
Other comprehensive income (loss), net of tax:
Unrealized gain on securities available for sale	$ 41	$ 10	$ 4	$ 38
Foreign currency translation adjustments	195	125	(355)	226
Other comprehensive income (loss), net	236	135	(351)	264
Comprehensive loss, net of tax	(36,415)	(7,489)	(67,817)	(2,722)
Less: Comprehensive (loss) income attributable to noncontrolling interests	(851)	4,024	(3,356)	7,163
Comprehensive loss attributable to shareholders	(35,564)	$ (11,513)	(64,461)	$ (9,885)
Class A Common Stock [Member]
Costs and Expenses
Cash dividends declared per common share		$ 0.0625		$ 0.1250
Class B Common Stock [Member]
Costs and Expenses
Cash dividends declared per common share		$ 0.0625		$ 0.1250
Sales Of VOIs [Member]
Revenues
Revenue from customers	9,054	$ 68,302	54,182	$ 120,033
Costs and Expenses
Total costs	1,038	10,572	5,137	14,420
Fee-Based Sales Commissions [Member]
Revenues
Revenue from customers	1,135	55,343	42,500	100,555
Other Fee-Based Services [Member]
Revenues
Revenue from customers	26,413	30,703	55,727	60,271
Costs and Expenses
Total costs	18,535	19,049	40,246	41,042
Cost Reimbursements [Member]
Revenues
Revenue from customers	11,850	14,007	30,970	31,051
Costs and Expenses
Total costs	11,850	14,007	30,970	31,051
Trade Sales [Member]
Revenues
Revenue from customers	23,043	45,061	63,920	91,045
Costs and Expenses
Total costs	22,385	30,828	52,157	63,118
Sales Of Real Estate Inventory [Member]
Revenues
Revenue from customers	2,839	424	9,278	4,660
Costs and Expenses
Total costs	1,474		6,106	2,643
Other [Member]
Revenues
Revenue from customers	$ 840	$ 2,060	$ 2,402	$ 3,464