Transactions with Related Persons (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Loans and Leases Receivable, Related Parties [Roll Forward]
Beginning balance	$ 1,311,000
New loans	605,000
Repayments	(91,000)
Ending balance	1,825,000	1,311,000
Unfunded Loan Commitments Available To Related Parties	5,500,000	4,400,000
Revenue from Related Parties	21,600,000	33,700,000	34,500,000
Revenue From Largest Individual Institution Related Parties	20,400,000	22,800,000	23,500,000
Investment Securities Available For Sale Related Parties	21,600,000	16,100,000
Investment Cost Related Parties	$ 452,000	$ 452,000