Loans and Loans Held for Sale - Summary of Nonperforming Assets (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Nonperforming Assets
Nonaccrual loans	$ 25,398	$ 27,723
Nonaccrual TDRs	15,095	7,659
Total nonaccrual loans	40,493	35,382
OREO	512	354
Total Nonperforming Assets	$ 41,005	$ 35,736