Loans Receivable and Allowance for Loan and Lease Losses (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
The composition of net loans receivable
Total loans receivable	$ 1,650,877	$ 1,342,930
Deferred (fees) costs, net	(7)	(389)
Total loans receivable, net	1,634,752	1,327,509
Less: Allowance for loan and lease losses	(16,118)	(15,032)
Total loans receivable covered under FDIC Loss Sharing Agreements [Member]
The composition of net loans receivable
Total loans receivable	113,293	126,276
Total loans receivable not covered under FDIC Loss Sharing Agreements [Member]
The composition of net loans receivable
Total loans receivable	1,537,584	1,216,654
Construction [Member] | Total loans receivable covered under FDIC Loss Sharing Agreements [Member]
The composition of net loans receivable
Total loans receivable	30,859	37,926
Construction [Member] | Total loans receivable not covered under FDIC Loss Sharing Agreements [Member]
The composition of net loans receivable
Total loans receivable	12,986	15,271
Commercial real estate [Member] | Total loans receivable covered under FDIC Loss Sharing Agreements [Member]
The composition of net loans receivable
Total loans receivable	45,893	48,789
Commercial real estate [Member] | Total loans receivable not covered under FDIC Loss Sharing Agreements [Member]
The composition of net loans receivable
Total loans receivable	458,377	352,077
Commercial and industrial [Member] | Total loans receivable covered under FDIC Loss Sharing Agreements [Member]
The composition of net loans receivable
Total loans receivable	12,324	13,084
Commercial and industrial [Member] | Total loans receivable not covered under FDIC Loss Sharing Agreements [Member]
The composition of net loans receivable
Total loans receivable	72,140	69,736
Residential real estate [Member] | Total loans receivable covered under FDIC Loss Sharing Agreements [Member]
The composition of net loans receivable
Total loans receivable	20,205	22,465
Residential real estate [Member] | Total loans receivable not covered under FDIC Loss Sharing Agreements [Member]
The composition of net loans receivable
Total loans receivable	91,539	53,476
Manufactured housing [Member] | Total loans receivable covered under FDIC Loss Sharing Agreements [Member]
The composition of net loans receivable
Total loans receivable	4,012	4,012
Manufactured housing [Member] | Total loans receivable not covered under FDIC Loss Sharing Agreements [Member]
The composition of net loans receivable
Total loans receivable	98,146	104,565
Mortgage Warehouse [Member] | Total loans receivable not covered under FDIC Loss Sharing Agreements [Member]
The composition of net loans receivable
Total loans receivable	801,994	619,318
Consumer [Member] | Total loans receivable not covered under FDIC Loss Sharing Agreements [Member]
The composition of net loans receivable
Total loans receivable	$ 2,402	$ 2,211