Note Loans (Loans held-for-sale in non-performing status) (Detail) - Loans Held-for-Sale - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	$ 42,743	$ 45,169
Commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	42,741	45,074
Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	$ 2	$ 95