Loans and the Allowance for Loan Losses (Details) - Aging Analysis (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	$ 1,720	$ 1,234
60-89 Days Past Due	3,807	258
90 Days or Greater Past Due	8,175	3,137
Total Past Due	13,702	4,629
Current	2,413,533	955,975
Total Loans Receivable	2,427,235	960,604
Commercial Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	405	18
90 Days or Greater Past Due	752	753
Total Past Due	1,157	771
Current	469,353	228,917
Total Loans Receivable	470,510	229,688
Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	951	221
60-89 Days Past Due	2,044
90 Days or Greater Past Due	4,020	744
Total Past Due	7,015	965
Current	1,563,839	535,574
Total Loans Receivable	1,570,854	536,539
Construction Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	141,844	42,722
Total Loans Receivable	141,844	42,722
Residential Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	347	990
60-89 Days Past Due	1,763	258
90 Days or Greater Past Due	3,403	1,640
Total Past Due	5,513	2,888
Current	235,874	147,683
Total Loans Receivable	241,387	150,571
Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	17	5
Total Past Due	17	5
Current	2,623	1,079
Total Loans Receivable	$ 2,640	$ 1,084