Revenue Recognition (Disaggregated Revenue) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Disaggregation of Revenue [Line Items]
Revenue from customers	$ 182,243	$ 193,775
Interest income	21,316	21,415	[1]
Net (losses) gains on sales of real estate assets	(47)	1,332	[1]
Other revenue	574	830	[1]
Total revenues	204,086	217,352	[1]
Sales Of VOIs [Member]
Disaggregation of Revenue [Line Items]
Revenue from customers	45,128	51,731	[1]
Fee-Based Sales Commissions [Member]
Disaggregation of Revenue [Line Items]
Revenue from customers	41,365	45,212	[1]
Resort And Club Management Revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue from customers	25,029	25,436
Cost Reimbursements [Member]
Disaggregation of Revenue [Line Items]
Revenue from customers	19,120	17,044	[1]
Interest income	21,316	21,415
Resort Title Fees [Member]
Disaggregation of Revenue [Line Items]
Revenue from customers	2,723	2,728
Trade Sales - Wholesale [Member]
Disaggregation of Revenue [Line Items]
Revenue from customers	20,865	22,360
Trade Sales - Retail [Member]
Disaggregation of Revenue [Line Items]
Revenue from customers	20,012	23,624
Sales Of Real Estate Inventory [Member]
Disaggregation of Revenue [Line Items]
Revenue from customers	6,439	4,236	[1]
Other revenue	574	830
Other [Member]
Disaggregation of Revenue [Line Items]
Revenue from customers	$ 1,562	$ 1,404

[1] See Note 1 for a summary of adjustments.