Fair Value Measurement (Fair Value Assets And Liabilities Measured On Nonrecurring Basis) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total investment securities, held to maturity	$ 4,361	$ 4,732
Fair Value, Measurements, Nonrecurring [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Assets, nonrecurring	17,787	48,067
Fair Value, Measurements, Nonrecurring [Member] | Level 1 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Assets, nonrecurring	0	0
Fair Value, Measurements, Nonrecurring [Member] | Level 2 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Assets, nonrecurring	0	0
Fair Value, Measurements, Nonrecurring [Member] | Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Assets, nonrecurring	17,787	48,067
Residential Mortgage-Backed Securities And Collateralized Mortgage Obligations [Member] | Fair Value, Measurements, Nonrecurring [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total investment securities, held to maturity		432
Residential Mortgage-Backed Securities And Collateralized Mortgage Obligations [Member] | Fair Value, Measurements, Nonrecurring [Member] | Level 1 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total investment securities, held to maturity		0
Residential Mortgage-Backed Securities And Collateralized Mortgage Obligations [Member] | Fair Value, Measurements, Nonrecurring [Member] | Level 2 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total investment securities, held to maturity		0
Residential Mortgage-Backed Securities And Collateralized Mortgage Obligations [Member] | Fair Value, Measurements, Nonrecurring [Member] | Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total investment securities, held to maturity		432
Non-Covered Loans And Leases [Member] | Fair Value, Measurements, Nonrecurring [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Assets, nonrecurring	14,693	34,007
Non-Covered Loans And Leases [Member] | Fair Value, Measurements, Nonrecurring [Member] | Level 1 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Assets, nonrecurring	0	0
Non-Covered Loans And Leases [Member] | Fair Value, Measurements, Nonrecurring [Member] | Level 2 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Assets, nonrecurring	0	0
Non-Covered Loans And Leases [Member] | Fair Value, Measurements, Nonrecurring [Member] | Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Assets, nonrecurring	14,693	34,007
Non-Covered Other Real Estate Owned [Member] | Fair Value, Measurements, Nonrecurring [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Assets, nonrecurring	1,030	4,671
Non-Covered Other Real Estate Owned [Member] | Fair Value, Measurements, Nonrecurring [Member] | Level 1 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Assets, nonrecurring	0	0
Non-Covered Other Real Estate Owned [Member] | Fair Value, Measurements, Nonrecurring [Member] | Level 2 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Assets, nonrecurring	0	0
Non-Covered Other Real Estate Owned [Member] | Fair Value, Measurements, Nonrecurring [Member] | Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Assets, nonrecurring	1,030	4,671
Covered Other Real Estate Owned [Member] | Fair Value, Measurements, Nonrecurring [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Assets, nonrecurring	2,064	8,957
Covered Other Real Estate Owned [Member] | Fair Value, Measurements, Nonrecurring [Member] | Level 1 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Assets, nonrecurring	0	0
Covered Other Real Estate Owned [Member] | Fair Value, Measurements, Nonrecurring [Member] | Level 2 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Assets, nonrecurring	0	0
Covered Other Real Estate Owned [Member] | Fair Value, Measurements, Nonrecurring [Member] | Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Assets, nonrecurring	$ 2,064	$ 8,957