Fair Value (Narrative) (Details) (USD $)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2012
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans held for sale - lower of cost or market	$ 28,606,000		$ 28,606,000		$ 1,666,000
Loans Held-for-sale, Fair Value Disclosure	32,163,000		32,163,000		1,666,000
Impaired Financing Receivable, Carrying Value	72,111,000		72,111,000		101,864,000
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			44,574,000		63,272,000
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	4,120,000		4,120,000		10,451,000
Impaired Financing Receivable, Related Allowance	4,120,000		4,120,000		10,451,000
Impaired loans carried at fair value	17,577,000		17,577,000		33,819,000
Partial Charge-Offs On Impaired Loans carried at Fair Value			32,117,000		48,952,000
Book Value Of Impaired Loans Carried At Fair Value	20,011,000		20,011,000		41,002,000
Impaired Financing Receivable, carried at fair value, related expense	(200,000)	6,000,000	2,300,000	8,100,000
MSR recorded at lower of cost or fair value	8,632,000	9,132,000	8,632,000	9,132,000	9,013,000	8,662,000	8,260,000	7,763,000
Mortgage Servicing Rights Fair Value	3,000,000		3,000,000
Valuation allowance of MSR	876,000	1,071,000	876,000	1,071,000	1,031,000	992,000	2,084,000	2,324,000
MSRs recorded at cost	5,600,000		5,600,000		6,700,000
Changes due to fair value adjustments	116,000	1,013,000	155,000	1,253,000
Other Real Estate, Foreclosed Assets, and Repossessed Assets	19,185,000		19,185,000		34,636,000
Percent of OREO held at fair value	60.27626%		60.27626%		53.4877%
Other Real Estate, Foreclosed Assets, and Repossessed Assets, Fair Value	11,600,000		11,600,000		18,526,000
OREO valuation adjustments	935,000	2,030,000	2,026,000	2,229,000
Loans held for sale - amount held at cost	8,000,000		8,000,000
Loans held for sale-related expense			3,200,000
Commercial Portfolio Segment [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans held for sale - lower of cost or market	22,000,000		22,000,000
Loans Held-for-sale, Fair Value Disclosure	13,976,000		13,976,000
Commercial Receivables, excluding Commercial, Financial, and Agricultural [Domain]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Impaired Financing Receivable, Related Allowance	2,434,000		2,434,000		7,183,000
Financing Receivable, not collateral dependent [Domain]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Impaired Financing Receivable, Related Allowance	$ 1,686,000		$ 1,686,000		$ 3,268,000