Loans - Loan Portfolio, Excluding Loans Held for Sale (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 1,630,790	$ 1,469,783
Deferred loan costs (fees), net	1,379	(2,411)
Allowance for loan losses	(25,990)	(26,612)
Loans, net	1,606,179	1,440,760
Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	593,476	550,786
Construction Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	88,311	74,727
Residential Real Estate Multifamily [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	226,898	196,199
Other Real Estate Residential [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	432,999	325,774
Commercial & Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	258,578	288,809
Individuals & Lease Financing [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 30,528	$ 33,488