Loans And Allowance For Loan Losses (Recorded Investment In Loans On Nonaccrual Status) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Noncovered [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total nonaccrual loans	$ 35,104	$ 13,506
Covered [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total nonaccrual loans	3,595	7,128
Real Estate Mortgage [Member] | Commercial Real Estate [Member] | Noncovered [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total nonaccrual loans	18,337	4,667
Real Estate Mortgage [Member] | Commercial Real Estate [Member] | Covered [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total nonaccrual loans	3,087	3,554
Real Estate Mortgage [Member] | One-To-Four Family Residential [Member] | Noncovered [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total nonaccrual loans	563	1,468
Real Estate Mortgage [Member] | One-To-Four Family Residential [Member] | Covered [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total nonaccrual loans	52	188
Real Estate Construction [Member] | Commercial Real Estate [Member] | Noncovered [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total nonaccrual loans	3,355	3,877
Real Estate Construction [Member] | Commercial Real Estate [Member] | Covered [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total nonaccrual loans	130	3,009
Commercial [Member] | Noncovered [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total nonaccrual loans	12,761	3,371
Commercial [Member] | Covered [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total nonaccrual loans	324	370
Other [Member] | Noncovered [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total nonaccrual loans	88	123
Other [Member] | Covered [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total nonaccrual loans	$ 2	$ 7