Segment Reporting (Details) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2019 USD ($) segment	Sep. 30, 2018 USD ($) segment	Sep. 30, 2019 USD ($) segment	Sep. 30, 2018 USD ($) segment
Segment Reporting Information [Line Items]
Total revenue		$ 205,878	$ 202,205	$ 570,296	$ 564,662
Cost of VOIs sold		3,121	11,237	17,541	19,838
Cost of other fee-based services		23,746	19,937	66,538	53,983
Cost reimbursements		21,111	16,900	58,705	47,157
Selling, general and administrative expenses		117,159	112,407	355,041	315,535
Interest expense		10,388	9,208	29,955	25,470
Total costs and expenses		175,525	169,689	527,780	461,983
Income before non-controlling interest and provision for income taxes		$ 30,353	$ 32,516	42,516	102,679
Add: Depreciation and amortization				$ 14,069	$ 11,852
Number of reportable segments | segment		2	2	2	2
Corporate And Other [Member]
Segment Reporting Information [Line Items]
Total revenue		$ 3,647	$ 1,900	$ 9,670	$ 5,759
Selling, general and administrative expenses		22,388	20,262	59,145	60,723
Interest expense		5,326	4,207	14,564	11,136
Total costs and expenses		27,714	24,469	73,709	71,859
Income before non-controlling interest and provision for income taxes		(24,067)	(22,569)	(64,039)	(66,100)
Elimination [Member]
Segment Reporting Information [Line Items]
Total revenue		(1,588)	(1,454)	(4,621)	(4,369)
Net carrying cost of VOI inventory		(5,878)	(2,908)	(18,853)	(7,075)
Cost of other fee-based services		5,878	2,908	18,853	7,075
Selling, general and administrative expenses		(27)	(35)	(507)	(18)
Mortgage servicing expense		(1,561)	(1,419)	(4,114)	(4,351)
Total costs and expenses		(1,588)	(1,454)	(4,621)	(4,369)
Sales Of VOIs And Financing [Member] | Reportable Segments [Member]
Segment Reporting Information [Line Items]
Total revenue		153,253	157,293	422,619	435,998
Cost of VOIs sold		3,121	11,237	17,541	19,838
Net carrying cost of VOI inventory		5,878	2,908	18,853	7,075
Cost of other fee-based services		2,442	1,227	4,832	3,584
Selling, general and administrative expenses		94,798	92,180	296,403	254,830
Mortgage servicing expense		1,561	1,419	4,114	4,351
Interest expense		5,062	5,001	15,391	14,334
Total costs and expenses		112,862	113,972	357,134	304,012
Income before non-controlling interest and provision for income taxes		40,391	43,321	65,485	131,986
Add: Depreciation and amortization		1,507	1,606	4,577	4,922
Add: Severance				39,121
Segment Adjusted EBITDA	[1]	42,492	44,927	109,777	136,908
Resort Operations And Club Management [Member] | Reportable Segments [Member]
Segment Reporting Information [Line Items]
Total revenue		50,566	44,466	142,628	127,274
Cost of other fee-based services		15,426	15,802	42,853	43,324
Cost reimbursements		21,111	16,900	58,705	47,157
Total costs and expenses		36,537	32,702	101,558	90,481
Income before non-controlling interest and provision for income taxes		14,029	11,764	41,070	36,793
Add: Depreciation and amortization		321	450	1,050	1,248
Segment Adjusted EBITDA	[1]	14,588	12,214	42,358	38,041
Sales of VOIs [Member]
Segment Reporting Information [Line Items]
Total revenue	[2]	66,318	70,698	186,351	195,412
Sales of VOIs [Member] | Sales Of VOIs And Financing [Member] | Reportable Segments [Member]
Segment Reporting Information [Line Items]
Total revenue		66,318	70,698	186,351	195,412
Fee-Based Sales Commission Revenue [Member]
Segment Reporting Information [Line Items]
Total revenue	[3]	60,478	61,641	161,033	167,581
Fee-Based Sales Commission Revenue [Member] | Sales Of VOIs And Financing [Member] | Reportable Segments [Member]
Segment Reporting Information [Line Items]
Total revenue		60,478	61,641	161,033	167,581
Other Fee-Based Services Revenue [Member]
Segment Reporting Information [Line Items]
Total revenue		33,744	31,057	94,015	89,472
Other Fee-Based Services Revenue [Member] | Sales Of VOIs And Financing [Member] | Reportable Segments [Member]
Segment Reporting Information [Line Items]
Total revenue		4,289	3,491	10,092	9,355
Other Fee-Based Services Revenue [Member] | Resort Operations And Club Management [Member] | Reportable Segments [Member]
Segment Reporting Information [Line Items]
Total revenue		29,455	27,566	83,923	80,117
Cost Reimbursements [Member]
Segment Reporting Information [Line Items]
Total revenue	[3]	21,111	16,900	58,705	47,157
Cost Reimbursements [Member] | Resort Operations And Club Management [Member] | Reportable Segments [Member]
Segment Reporting Information [Line Items]
Total revenue		21,111	16,900	58,705	47,157
Mortgage Servicing Revenue [Member] | Elimination [Member]
Segment Reporting Information [Line Items]
Total revenue		(1,588)	(1,454)	(4,621)	(4,369)
Mortgage Servicing Revenue [Member] | Sales Of VOIs And Financing [Member] | Reportable Segments [Member]
Segment Reporting Information [Line Items]
Total revenue		1,588	1,454	4,621	4,369
Interest Income [Member]
Segment Reporting Information [Line Items]
Total revenue	[2]	22,081	21,531	65,964	63,771
Interest Income [Member] | Corporate And Other [Member]
Segment Reporting Information [Line Items]
Total revenue		2,038	1,522	5,979	4,490
Interest Income [Member] | Sales Of VOIs And Financing [Member] | Reportable Segments [Member]
Segment Reporting Information [Line Items]
Total revenue		20,043	20,009	59,985	59,281
Other Income, Net [Member]
Segment Reporting Information [Line Items]
Total revenue		2,146	378	4,228	1,269
Other Income, Net [Member] | Corporate And Other [Member]
Segment Reporting Information [Line Items]
Total revenue		1,609	$ 378	3,691	$ 1,269
Other Income, Net [Member] | Sales Of VOIs And Financing [Member] | Reportable Segments [Member]
Segment Reporting Information [Line Items]
Total revenue		$ 537		$ 537

[1] See Management's Discussion and Analysis of Financial Condition and Results of Operations for information regarding Adjusted EBITDA, including how we define Adjusted EBITDA and a reconciliation of Adjusted EBITDA to net income.

[2] Included in our sales of VOIs and financing segment described in Note 13: Segment Reporting.

[3] Included in our resort operations and club management segment described in Note 13: Segment Reporting.