BORROWINGS (Retail Repurchase Agreements And Other Short Term Borrowings) (Detail) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Debt Disclosure [Abstract]
Retail repurchase agreements carrying amount	$ 125,119	$ 109,145	$ 74,432
Retail repurchase agreements average	120,711	110,776	70,097
Retail repurchase agreements maximum	$ 139,325	$ 128,511	$ 82,702
Retail Repurchase Agreements Interest Rate	0.24%	0.23%	0.24%
Retail Repurchase Agreements Average Interest Rate	0.24%	0.23%	0.23%