Debt (Receivable-Backed Notes Payable, Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Apr. 06, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Receivable backed notes payable - non-recourse	$ 327,024		$ 336,421	[1]
Liberty Bank Facility [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 50,000
Percent Of Future Advances Of Unpaid Principal balance Of Qualified Timeshare Loans To Agents	85.00%
Percent Of Future Advances Of Unpaid Principal balance Of Non-Conforming Qualified Timeshare Loans To Agents	60.00%
Liberty Bank Facility [Member] | Minimum [Member]
Debt Instrument [Line Items]
Effective yield rate	4.00%
Liberty Bank Facility [Member] | Prime Rate [Member]
Debt Instrument [Line Items]
Basis spread on rate	0.50%
Quorum Purchase Facility [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 50,000
Future advance rate percent	0.50%
Gross advance rate	85.00%
Quorum Purchase Facility [Member] | Interest Rate at 6.9% [Member]
Debt Instrument [Line Items]
Effective yield rate	6.90%
Receivable backed notes payable - non-recourse	$ 2,900
Quorum Purchase Facility [Member] | Interest Rate at 5.5% [Member]
Debt Instrument [Line Items]
Effective yield rate	5.50%
Receivable backed notes payable - non-recourse	$ 2,700
Quorum Purchase Facility [Member] | Interest Rate at 4.95% [Member]
Debt Instrument [Line Items]
Effective yield rate	4.95%
Receivable backed notes payable - non-recourse	$ 6,900
Quorum Purchase Facility [Member] | Interest Rate at 5.0% [Member]
Debt Instrument [Line Items]
Effective yield rate	5.00%
Receivable backed notes payable - non-recourse	$ 3,200
Quorum Purchase Facility [Member] | Interest Rate at 4.75% [Member]
Debt Instrument [Line Items]
Effective yield rate	4.75%
Receivable backed notes payable - non-recourse	$ 6,000
Non-Recourse Receivable Backed Notes Payable [Member]
Debt Instrument [Line Items]
Receivable backed notes payable - non-recourse	327,024		336,421
Debt issuance cost	5,746		6,148
Non-Recourse Receivable Backed Notes Payable [Member] | Quorum Purchase Facility [Member]
Debt Instrument [Line Items]
Receivable backed notes payable - non-recourse	$ 21,689		$ 16,771
Non-Recourse Receivable Backed Notes Payable [Member] | Quorum Purchase Facility [Member] | Maximum [Member]
Debt Instrument [Line Items]
Interest rate			6.90%
Non-Recourse Receivable Backed Notes Payable [Member] | Quorum Purchase Facility [Member] | Minimum [Member]
Debt Instrument [Line Items]
Interest rate			4.75%
Subsequent Event [Member] | Quorum Purchase Facility [Member]
Debt Instrument [Line Items]
Interest rate		4.95%
Future advance rate percent		0.25%

[1] * See Note 2 for summary of adjustments.