Loans And Allowance For Loan Losses (Age Analysis Of Past Due Loans) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2012
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-89 days past due	$ 26,556	$ 37,314
90 days and greater past due	32,680	41,989
Total past due	59,236	79,303
Current	1,247,389	1,299,432
Loans receivable, Noncovered	1,287,645	1,353,028
Loans receivable, Covered	18,980	25,707
Recorded loans > 90 days and accruing	2	3,290
Total	1,306,625	1,378,735	1,492,111
Noncovered [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-89 days past due	25,367	36,224
90 days and greater past due	29,200	38,394
Total past due	54,567	74,618
Current	1,233,078	1,278,410
Loans receivable, Noncovered	1,287,645	1,353,028
Recorded loans > 90 days and accruing	2	3,290
Covered [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-89 days past due	1,189	1,090
90 days and greater past due	3,480	3,595
Total past due	4,669	4,685
Current	14,311	21,022
Loans receivable, Covered	18,980	25,707
Other [Member] | Noncovered [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-89 days past due	148	538
90 days and greater past due	55	160
Total past due	203	698
Current	31,966	35,494
Loans receivable, Noncovered	32,169	36,192
Recorded loans > 90 days and accruing	1	72
Other [Member] | Covered [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
90 days and greater past due		2
Total past due		2
Current	40	107
Loans receivable, Covered	40	109
Real Estate Mortgage [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Noncovered	743,858	870,975
Loans receivable, Covered	13,578	18,298
Real Estate Mortgage [Member] | Commercial Real Estate [Member] | Noncovered [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-89 days past due	24,105	23,348
90 days and greater past due	12,203	18,337
Total past due	36,308	41,685
Current	707,550	829,290
Loans receivable, Noncovered	743,858	870,975
Real Estate Mortgage [Member] | Commercial Real Estate [Member] | Covered [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-89 days past due	1,189	1,090
90 days and greater past due	3,175	3,087
Total past due	4,364	4,177
Current	9,214	14,121
Loans receivable, Covered	13,578	18,298
Real Estate Mortgage [Member] | One-To-Four Family Residential [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Noncovered	80,561	70,954
Loans receivable, Covered	4,084	4,881
Real Estate Mortgage [Member] | One-To-Four Family Residential [Member] | Noncovered [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-89 days past due	105	1,479
90 days and greater past due	396	1,310
Total past due	501	2,789
Current	80,060	68,165
Loans receivable, Noncovered	80,561	70,954
Recorded loans > 90 days and accruing		747
Real Estate Mortgage [Member] | One-To-Four Family Residential [Member] | Covered [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
90 days and greater past due	71	52
Total past due	71	52
Current	4,013	4,829
Loans receivable, Covered	4,084	4,881
Real Estate Construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total	167,770	134,791	210,199
Real Estate Construction [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Noncovered	162,995	130,753
Loans receivable, Covered	311	382
Real Estate Construction [Member] | Commercial Real Estate [Member] | Noncovered [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-89 days past due		3,501
90 days and greater past due	5,659	3,355
Total past due	5,659	6,856
Current	157,336	123,897
Loans receivable, Noncovered	162,995	130,753
Real Estate Construction [Member] | Commercial Real Estate [Member] | Covered [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
90 days and greater past due	130	130
Total past due	130	130
Current	181	252
Loans receivable, Covered	311	382
Real Estate Construction [Member] | One-To-Four Family Residential [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable, Noncovered	4,464	3,656
Real Estate Construction [Member] | One-To-Four Family Residential [Member] | Noncovered [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	4,464	3,656
Loans receivable, Noncovered	4,464	3,656
Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total	264,565	242,535	245,955
Commercial [Member] | Noncovered [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-89 days past due	1,009	7,358
90 days and greater past due	10,887	15,232
Total past due	11,896	22,590
Current	251,702	217,908
Loans receivable, Noncovered	263,598	240,498
Recorded loans > 90 days and accruing	1	2,471
Commercial [Member] | Covered [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
90 days and greater past due	104	324
Total past due	104	324
Current	863	1,713
Loans receivable, Covered	$ 967	$ 2,037