Interest Bearing Deposits (Remaining Maturities Of Time Deposits Of $100,000 Or More) (Details) (USD $)	Dec. 31, 2012	Dec. 31, 2011
Interest Bearing Deposits [Abstract]
Three months or less	$ 336,783,000
Over three months through six months	205,786,000
Over six months through twelve months	438,500,000
Over twelve months	448,084,000
Time, $100,000 and over	1,429,153,000	1,629,505,000
Time Deposit Of One Hundred Thousand Or More	$ 100,000