Note Guarantees (Indemnification, Representations and Warranties related to loans sold) - Additional Information (Detail) - Guarantee on loans sold or serviced with representation and warranties - USD ($)
$ in Thousands

6 Months Ended

Jun. 30, 2016

Jun. 30, 2015

Dec. 31, 2015

E-Loan

Guarantor Obligations

Valuation Allowances And Reserves Balance

$ 4,000

Securitization

Guarantor Obligations

Repurchased Loans

$ 0