Fair Value (Schedule Of Assets With Fair Value Changes On Nonrecurring Basis) (Details) (USD $)	3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014 HTM Securities Adjusted For OTTI [Member]	Jun. 30, 2013 HTM Securities Adjusted For OTTI [Member]	Jun. 30, 2014 HTM Securities Adjusted For OTTI [Member]	Jun. 30, 2013 HTM Securities Adjusted For OTTI [Member]	Jun. 30, 2014 Impaired Loans [Member]	Jun. 30, 2013 Impaired Loans [Member]	Jun. 30, 2014 Impaired Loans [Member]	Jun. 30, 2013 Impaired Loans [Member]	Jun. 30, 2014 Private Equity Investments [Member]	Jun. 30, 2013 Private Equity Investments [Member]	Jun. 30, 2014 Private Equity Investments [Member]	Jun. 30, 2013 Private Equity Investments [Member]	Jun. 30, 2014 Other Real Estate Owned [Member]	Jun. 30, 2013 Other Real Estate Owned [Member]	Jun. 30, 2014 Other Real Estate Owned [Member]	Jun. 30, 2013 Other Real Estate Owned [Member]	Jun. 30, 2014 Level 1 [Member]	Dec. 31, 2013 Level 1 [Member]	Jun. 30, 2014 Level 1 [Member] HTM Securities Adjusted For OTTI [Member]	Dec. 31, 2013 Level 1 [Member] HTM Securities Adjusted For OTTI [Member]	Jun. 30, 2014 Level 1 [Member] Impaired Loans [Member]	Dec. 31, 2013 Level 1 [Member] Impaired Loans [Member]	Jun. 30, 2014 Level 1 [Member] Private Equity Investments [Member]	Dec. 31, 2013 Level 1 [Member] Private Equity Investments [Member]	Jun. 30, 2014 Level 1 [Member] Other Real Estate Owned [Member]	Dec. 31, 2013 Level 1 [Member] Other Real Estate Owned [Member]	Jun. 30, 2014 Level 2 [Member]	Dec. 31, 2013 Level 2 [Member]	Jun. 30, 2014 Level 2 [Member] HTM Securities Adjusted For OTTI [Member]	Dec. 31, 2013 Level 2 [Member] HTM Securities Adjusted For OTTI [Member]	Jun. 30, 2014 Level 2 [Member] Impaired Loans [Member]	Dec. 31, 2013 Level 2 [Member] Impaired Loans [Member]	Jun. 30, 2014 Level 2 [Member] Private Equity Investments [Member]	Dec. 31, 2013 Level 2 [Member] Private Equity Investments [Member]	Jun. 30, 2014 Level 2 [Member] Other Real Estate Owned [Member]	Dec. 31, 2013 Level 2 [Member] Other Real Estate Owned [Member]	Jun. 30, 2014 Level 3 [Member]	Dec. 31, 2013 Level 3 [Member]	Jun. 30, 2014 Level 3 [Member] HTM Securities Adjusted For OTTI [Member]	Dec. 31, 2013 Level 3 [Member] HTM Securities Adjusted For OTTI [Member]	Jun. 30, 2014 Level 3 [Member] Impaired Loans [Member]	Dec. 31, 2013 Level 3 [Member] Impaired Loans [Member]	Jun. 30, 2014 Level 3 [Member] Private Equity Investments [Member]	Dec. 31, 2013 Level 3 [Member] Private Equity Investments [Member]	Jun. 30, 2014 Level 3 [Member] Other Real Estate Owned [Member]	Dec. 31, 2013 Level 3 [Member] Other Real Estate Owned [Member]	Jun. 30, 2014 Estimated Fair Value [Member]	Dec. 31, 2013 Estimated Fair Value [Member]	Jun. 30, 2014 Estimated Fair Value [Member] HTM Securities Adjusted For OTTI [Member]	Dec. 31, 2013 Estimated Fair Value [Member] HTM Securities Adjusted For OTTI [Member]	Jun. 30, 2014 Estimated Fair Value [Member] Impaired Loans [Member]	Dec. 31, 2013 Estimated Fair Value [Member] Impaired Loans [Member]	Jun. 30, 2014 Estimated Fair Value [Member] Private Equity Investments [Member]	Dec. 31, 2013 Estimated Fair Value [Member] Private Equity Investments [Member]	Jun. 30, 2014 Estimated Fair Value [Member] Other Real Estate Owned [Member]	Dec. 31, 2013 Estimated Fair Value [Member] Other Real Estate Owned [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Principal amount of other real estate owned property sold			$ 24,600,000	$ 38,700,000
Fair value of assets measured on nonrecurring basis																					0	0	0	0	0	0	0	0	0	0	26,207,000	36,449,000	0	0	15,610,000	11,765,000	0	0	10,597,000	24,684,000	547,000	21,753,000	0	8,483,000	0	0	547,000	13,270,000	0	0	26,754,000	58,202,000	0	8,483,000	15,610,000	11,765,000	547,000	13,270,000	10,597,000	24,684,000
Gains (losses) from fair value changes	$ (1,174,000)	$ (3,597,000)	$ (5,613,000)	$ (9,866,000)	$ 0	$ 0	$ (27,000)	$ (403,000)	$ (104,000)	$ (832,000)	$ (2,282,000)	$ (1,566,000)	$ (133,000)	$ (609,000)	$ (133,000)	$ (1,429,000)	$ (937,000)	$ (2,156,000)	$ (3,171,000)	$ (6,468,000)