Loans Receivable (Schedule Of Carrying Amount Of Loans Acquired) (Details) (USD $) In Thousands	Dec. 31, 2010
Contractually required principal and interest at acquisition	$ 254,977
Nonaccretable difference (expected losses and foregone interest)	(92,726)
Cash flows expected to be collected at acquisition	162,251
Accretable yield	(11,050)
Basis in acquired loans at acquisition	151,201	[1]
Acquired Impaired Loans [Member]
Contractually required principal and interest at acquisition	49,823
Nonaccretable difference (expected losses and foregone interest)	(30,890)
Cash flows expected to be collected at acquisition	18,933
Accretable yield	(207)
Basis in acquired loans at acquisition	18,726
Acquired Performing Loans [Member]
Contractually required principal and interest at acquisition	205,154
Nonaccretable difference (expected losses and foregone interest)	(61,836)
Cash flows expected to be collected at acquisition	143,318
Accretable yield	(10,843)
Basis in acquired loans at acquisition	$ 132,475

[1] Excludes overdraft balances included in total loans at the acquisition date.