Annual report pursuant to Section 13 and 15(d)

Notes Receivable (Percentage Of Gross Notes Receivable Outstanding By FICO Score At Origination) (Details)

v3.10.0.1
Notes Receivable (Percentage Of Gross Notes Receivable Outstanding By FICO Score At Origination) (Details)
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Financing Receivable, Recorded Investment [Line Items]    
Percentage of gross notes receivable outstanding 100.00% 100.00%
700+ [Member]    
Financing Receivable, Recorded Investment [Line Items]    
Percentage of gross notes receivable outstanding 57.00% 54.00%
600-699 [Member]    
Financing Receivable, Recorded Investment [Line Items]    
Percentage of gross notes receivable outstanding 39.00% 41.00%
Less Than 600 [Member]    
Financing Receivable, Recorded Investment [Line Items]    
Percentage of gross notes receivable outstanding 3.00% 3.00%
No Score [Member]    
Financing Receivable, Recorded Investment [Line Items]    
Percentage of gross notes receivable outstanding [1] 1.00% 2.00%
[1] VOI notes receivable without a FICO score are primarily related to foreign borrowers.