Fair Value Measurement (Schedule Of Fair Value Assets Measured On Nonrecurring Basis) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013		Mar. 31, 2012
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets nonrecurring, by asset type	$ 45,574		$ 23,137
Total Impairments	2,999	[1]	2,004	[2]
Quoted Prices In Active Markets For Identical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets nonrecurring, by asset type
Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets nonrecurring, by asset type
Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets nonrecurring, by asset type	45,574		23,137
Loans Measured For Impairment Using The Fair Value Of The Underlying Collateral [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets nonrecurring, by asset type	9,298
Total Impairments	935	[1]
Loans Measured For Impairment Using The Fair Value Of The Underlying Collateral [Member] | Quoted Prices In Active Markets For Identical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets nonrecurring, by asset type
Loans Measured For Impairment Using The Fair Value Of The Underlying Collateral [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets nonrecurring, by asset type
Loans Measured For Impairment Using The Fair Value Of The Underlying Collateral [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets nonrecurring, by asset type	9,298
Impaired Real Estate Owned [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets nonrecurring, by asset type	19,198		15,223
Total Impairments	1,528	[1]	1,741	[2]
Impaired Real Estate Owned [Member] | Quoted Prices In Active Markets For Identical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets nonrecurring, by asset type
Impaired Real Estate Owned [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets nonrecurring, by asset type
Impaired Real Estate Owned [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets nonrecurring, by asset type	19,198		15,223
Impaired Loans Held For Sale [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets nonrecurring, by asset type	17,078		7,914
Total Impairments	536	[1]	263	[2]
Impaired Loans Held For Sale [Member] | Quoted Prices In Active Markets For Identical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets nonrecurring, by asset type
Impaired Loans Held For Sale [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets nonrecurring, by asset type
Impaired Loans Held For Sale [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets nonrecurring, by asset type	$ 17,078		$ 7,914

[1] Total impairments represent the amount of losses recognized during the three months ended March 31, 2013 on assets that were held and measured at fair value on a non-recurring basis as of March 31, 2013.

[2] Total impairments represent the amount of losses recognized during the three months ended March 31, 2012 on assets that were held and measured at fair value on a non-recurring basis as of March 31, 2012