Commitments And Contingencies (Additional Information) (Details)		12 Months Ended
		Dec. 31, 2015 USD ($) swap	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)
Legal Proceedings [Line Items]
Loss Contingency Accrual		$ 0	$ 0
Net change in unrealized gain (loss) on cash flow hedging derivatives, net of tax of $825, $2,431, and ($1,947), respectively		(1,533,000)	(4,515,000)	$ 3,616,000
Loss on Cash Flow Hedge Ineffectiveness		$ 0	0	$ 0
Derivative, Number of Interest Rate Swap Agreements | swap		2
Commercial Loan [Member]
Legal Proceedings [Line Items]
Cash held as collateral		$ 3,700,000
Interest Rate Swap [Member]
Legal Proceedings [Line Items]
Notional amount of derivative		43,000,000	43,000,000
Cash held as collateral		10,700,000
Net Payment on Derivatives		1,700,000	0
Derivative, Fair Value, Net	[1]	(9,229,000)	(9,143,000)
Forward Commitments To Sell Residential Mortgage Loans [Member]
Legal Proceedings [Line Items]
Notional amount of derivative			0
Forward-Starting Interest Rate Swap [Member]
Legal Proceedings [Line Items]
Notional amount of derivative		50,000,000	$ 0
Cash held as collateral		1,300,000
Derivative, Fair Value, Net	[2]	$ (576,000)

[1] Presented within accrued interest and other liabilities on the consolidated statements of condition.

[2] (1) Presented within accrued interest and other liabilities on the consolidated statements of condition.