Revenue Recognition (Disaggregated Revenue) (Details) - USD ($) $ in Thousands	3 Months Ended												12 Months Ended
	Dec. 31, 2019	[1]	Sep. 30, 2019	[1]	Jun. 30, 2019	[1]	Mar. 31, 2019	[1]	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019		Dec. 31, 2018	Dec. 31, 2017
Disaggregation of Revenue [Line Items]
Revenue from customers													$ 843,726		$ 852,462	$ 777,949
Interest income													86,326		85,501	83,708
Net gains on sales of real estate assets													13,616		4,563	1,451
Other revenue													3,203		3,372	5,661
Total revenues	$ 234,213		$ 249,613		$ 245,693		$ 217,352		$ 231,844	$ 253,873	$ 242,410	$ 217,771	946,871	[1]	945,898	868,769
Sales Of VOIs [Member]
Disaggregation of Revenue [Line Items]
Revenue from customers													255,375		254,225	242,017
Fee-Based Sales Commissions [Member]
Disaggregation of Revenue [Line Items]
Revenue from customers													207,832		216,422	229,389
Other Fee-Based Services [Member]
Disaggregation of Revenue [Line Items]
Revenue from customers													125,244		118,024	111,819
Resort And Club Management Revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue from customers													103,470		99,535	91,080
Cost Reimbursements [Member]
Disaggregation of Revenue [Line Items]
Revenue from customers													63,889		62,534	52,639
Resort Title Fees [Member]
Disaggregation of Revenue [Line Items]
Revenue from customers													14,246		12,205	14,742
Trade Sales - Wholesale [Member]
Disaggregation of Revenue [Line Items]
Revenue from customers													80,197		82,800	89,223
Trade Sales - Retail [Member]
Disaggregation of Revenue [Line Items]
Revenue from customers													106,140		96,686	52,862
Sales Of Real Estate Inventory [Member]
Disaggregation of Revenue [Line Items]
Revenue from customers													5,049		21,771
Other [Member]
Disaggregation of Revenue [Line Items]
Revenue from customers													$ 7,528		$ 6,284	$ 5,997

[1] During the fourth quarter of 2019, the prior 2019 quarterly revenue and operating expense amounts were reclassified for consistency to conform to the fourth quarter 2019 presentation.