Fair Value (Narrative) (Details) (USD $)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2012
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Impaired Financing Receivable, Carrying Value	$ 89,700,000		$ 89,700,000		$ 101,900,000
Discount percentage applied to real estate appraised values			15.00%
Discount percentage applied to lot development appraised values			6.00%
Partial Charge-Offs On Impaired Loans			58,400,000		63,300,000
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	6,343,000		6,343,000		10,451,000
Impaired Financing Receivable, Related Allowance	6,343,000		6,343,000		10,451,000
Impaired loans carried at fair value	30,183,000		30,183,000		33,819,000
Partial Charge-Offs On Impaired Loans carried at Fair Value			42,900,000		49,000,000
Book Value Of Impaired Loans Carried At Fair Value	33,600,000		33,600,000		41,000,000
Impaired Financing Receivable, carried at fair value, related expense	300,000	(200,000)	2,500,000	2,100,000
MSR recorded at lower of cost or fair value	8,662,000	8,260,000	8,662,000	8,260,000	9,013,000	8,778,000	8,121,000	7,763,000
Mortgage Servicing Rights Fair Value	2,600,000		2,600,000
Valuation allowance of MSR	992,000	2,084,000	992,000	2,084,000	1,031,000	1,031,000	2,262,000	2,324,000
MSRs recorded at cost	6,100,000		6,100,000		6,700,000
Changes due to fair value adjustments	39,000	178,000	39,000	240,000
Other Real Estate, Foreclosed Assets, and Repossessed Assets	23,909,000		23,909,000		34,636,000
Percent of OREO held at fair value	57.70%		57.70%		53.50%
Other Real Estate, Foreclosed Assets, and Repossessed Assets, Fair Value	13,800,000		13,800,000		18,526,000
OREO valuation adjustments	675,000	600,000	1,091,000	199,000
Commercial Receivables, excluding Commercial, Financial, and Agricultural [Domain]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Impaired Financing Receivable, Related Allowance	3,402,000		3,402,000		7,183,000
Financing Receivable, not collateral dependent [Domain]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Impaired Financing Receivable, Related Allowance	$ 2,941,000		$ 2,941,000		$ 3,268,000