Significant Accounting Policies (Revenue Disaggregation) (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2018	Mar. 31, 2017
Disaggregation of Revenue [Line Items]
Total revenue		$ 167,522	$ 162,567
Sales of VOIs [Member]
Disaggregation of Revenue [Line Items]
Total revenue	[1]	56,141	54,236
Fee-Based Sales Commission Revenue [Member]
Disaggregation of Revenue [Line Items]
Total revenue	[2]	45,854	45,154
Resort And Club Management Revenue [Member]
Disaggregation of Revenue [Line Items]
Total revenue	[2]	23,952	22,027
Cost Reimbursements [Member]
Disaggregation of Revenue [Line Items]
Total revenue	[2]	16,200	14,670
Resort Title Fees [Member]
Disaggregation of Revenue [Line Items]
Total revenue	[1]	2,689	2,817
Rental Revenue [Member]
Disaggregation of Revenue [Line Items]
Total revenue	[2]	1,383	1,277
Revenue From Customers [Member]
Disaggregation of Revenue [Line Items]
Total revenue		146,219	140,181
Interest Income [Member]
Disaggregation of Revenue [Line Items]
Total revenue	[1]	21,122	$ 22,386
Other Income, Net [Member]
Disaggregation of Revenue [Line Items]
Total revenue		$ 181

[1] Included in sales of VOIs and financing segment described in Note 11.

[2] Included in resort operations and club management segment described in Note 11.