Fair Values Of Assets And Liabilities (Summary Of Assets Measured At Fair Value On A Nonrecurring Basis) (Details) CALC (USD $) In Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
Mortgage loans held-for-sale, at lower of cost or market	$ 139,000
Impaired loans, Fair value of losses recognized	18,466	30,584
Other real estate owned, Fair value of losses recognized	7,422	13,615
Mortgage loans held-for-sale, Fair value of losses recognized		(358)
Fair Value Losses Recognized	25,888	43,841
Fair Value, Measurements, Nonrecurring [Member]
Impaired loans	225,853
Other real estate owned	82,772
Mortgage loans held-for-sale, at lower of cost or market	5,881
Fair value of assets measured on nonrecurring basis	314,506
Fair Value, Measurements, Nonrecurring [Member] | Level 2 [Member]
Mortgage loans held-for-sale, at lower of cost or market	5,881
Fair value of assets measured on nonrecurring basis	5,881
Fair Value, Measurements, Nonrecurring [Member] | Level 3 [Member]
Impaired loans	225,853
Other real estate owned	82,772
Fair value of assets measured on nonrecurring basis	$ 308,625