LOANS AND ALLOWANCE FOR LOAN AND LEASE LOSSES - FORECLOSURE RECORDED INVESTMENT (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Recorded investment in residential and consumer loans based on payment activity
Recorded Investment	$ 3,326,610	$ 3,040,495
Residential Real Estate - Owner Occupied
Recorded investment in residential and consumer loans based on payment activity
Recorded Investment	1,081,934	1,118,341
Residential Real Estate - Owner Occupied | Foreclosure Proceedings In Process
Recorded investment in residential and consumer loans based on payment activity
Recorded Investment	$ 4,602	$ 2,466