Receivables - Additional Information (Detail) |
12 Months Ended |
---|---|
Dec. 31, 2016
a
| |
Funds held by qualified intermediary | |
Accounts, Notes, Loans and Financing Receivable [Line Items] | |
Area of land (in acres) | 6,915 |
Minimum | |
Accounts, Notes, Loans and Financing Receivable [Line Items] | |
Due period of notes receivable as secured by deed of trust | 3 years |
Maximum | |
Accounts, Notes, Loans and Financing Receivable [Line Items] | |
Due period of notes receivable as secured by deed of trust | 5 years |