Fair Value (Assets And Liabilities Measured At Fair Value On A Recurring Basis) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Mortgage loans held for sale	$ 30,388	$ 11,500
Interest Rate Swap [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Swap	229
Fair Value Swap [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Swap	135
Fair Value, Measurements, Recurring [Member] | Level 1 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Mortgage loans held for sale
Mortgage IRLCs
Fair Value, Measurements, Recurring [Member] | Level 2 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Mortgage loans held for sale	30,388	11,535
Mortgage IRLCs	607	251
Fair Value, Measurements, Recurring [Member] | Level 3 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Mortgage loans held for sale
Mortgage IRLCs
Fair Value, Measurements, Recurring [Member] | Fair Value [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Mortgage loans held for sale	30,388	11,535
Mortgage IRLCs	607	251
Fair Value, Measurements, Recurring [Member] | Obligations Of U.S. Treasury And Other U.S. Government Sponsored Entities [Member] | Level 1 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Investment securities
Fair Value, Measurements, Recurring [Member] | Obligations Of U.S. Treasury And Other U.S. Government Sponsored Entities [Member] | Level 2 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Investment securities	698,470	371,657
Fair Value, Measurements, Recurring [Member] | Obligations Of U.S. Treasury And Other U.S. Government Sponsored Entities [Member] | Level 3 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Investment securities
Fair Value, Measurements, Recurring [Member] | Obligations Of U.S. Treasury And Other U.S. Government Sponsored Entities [Member] | Fair Value [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Investment securities	698,470	371,657
Fair Value, Measurements, Recurring [Member] | Obligations Of States And Political Subdivisions [Member] | Level 1 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Investment securities
Fair Value, Measurements, Recurring [Member] | Obligations Of States And Political Subdivisions [Member] | Level 2 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Investment securities	1,313	2,660
Fair Value, Measurements, Recurring [Member] | Obligations Of States And Political Subdivisions [Member] | Level 3 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Investment securities
Fair Value, Measurements, Recurring [Member] | Obligations Of States And Political Subdivisions [Member] | Fair Value [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Investment securities	1,313	2,660
Fair Value, Measurements, Recurring [Member] | U.S. Government Sponsored Entities' Asset-Backed Securities [Member] | Level 1 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Investment securities
Fair Value, Measurements, Recurring [Member] | U.S. Government Sponsored Entities' Asset-Backed Securities [Member] | Level 2 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Investment securities	332,848	444,295
Fair Value, Measurements, Recurring [Member] | U.S. Government Sponsored Entities' Asset-Backed Securities [Member] | Level 3 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Investment securities
Fair Value, Measurements, Recurring [Member] | U.S. Government Sponsored Entities' Asset-Backed Securities [Member] | Fair Value [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Investment securities	332,848	444,295
Fair Value, Measurements, Recurring [Member] | Equity Securities [Member] | Level 1 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Investment securities	1,495	1,270
Fair Value, Measurements, Recurring [Member] | Equity Securities [Member] | Level 2 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Investment securities
Fair Value, Measurements, Recurring [Member] | Equity Securities [Member] | Level 3 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Investment securities	744	763
Fair Value, Measurements, Recurring [Member] | Equity Securities [Member] | Fair Value [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Investment securities	2,239	2,033
Fair Value, Measurements, Recurring [Member] | Interest Rate Swap [Member] | Level 1 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Swap
Fair Value, Measurements, Recurring [Member] | Interest Rate Swap [Member] | Level 2 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Swap	229	846
Fair Value, Measurements, Recurring [Member] | Interest Rate Swap [Member] | Level 3 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Swap
Fair Value, Measurements, Recurring [Member] | Interest Rate Swap [Member] | Fair Value [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Swap	229	846
Fair Value, Measurements, Recurring [Member] | Fair Value Swap [Member] | Level 1 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Swap
Fair Value, Measurements, Recurring [Member] | Fair Value Swap [Member] | Level 2 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Swap
Fair Value, Measurements, Recurring [Member] | Fair Value Swap [Member] | Level 3 [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Swap	135	700
Fair Value, Measurements, Recurring [Member] | Fair Value Swap [Member] | Fair Value [Member]
Fair Value, Assets And Liabilities Measured On Recurring Basis [Line Items]
Swap	$ 135	$ 700