Loans Receivable (Schedule Of Subsequently Defaulted TDRs) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Mar. 31, 2011
TDRs Occurring During The Period [Member] | Non-Covered TDRs [Member]
Loans Receivable [Line Items]
Number of Loans	13	5
Pre-modification Outstanding Recorded Investment	$ 4,063	$ 10,479
Post-modification Outstanding Recorded Investment	3,773	6,470
TDRs Occurring During The Period [Member] | Residential Mortgage Loans [Member] | Residential - Prime [Member] | Non-Covered TDRs [Member]
Loans Receivable [Line Items]
Number of Loans
Pre-modification Outstanding Recorded Investment
Post-modification Outstanding Recorded Investment
TDRs Occurring During The Period [Member] | Commercial Loans [Member] | Real Estate [Member] | Non-Covered TDRs [Member]
Loans Receivable [Line Items]
Number of Loans	11	3
Pre-modification Outstanding Recorded Investment	4,036	5,039
Post-modification Outstanding Recorded Investment	3,773	4,609
TDRs Occurring During The Period [Member] | Commercial Loans [Member] | Business [Member] | Non-Covered TDRs [Member]
Loans Receivable [Line Items]
Number of Loans	1	2
Pre-modification Outstanding Recorded Investment	27	5,440
Post-modification Outstanding Recorded Investment		1,861
TDRs Occurring During The Period [Member] | Consumer Loans [Member] | Indirect Automobile [Member] | Non-Covered TDRs [Member]
Loans Receivable [Line Items]
Number of Loans
Pre-modification Outstanding Recorded Investment
Post-modification Outstanding Recorded Investment
TDRs Occurring During The Period [Member] | Consumer Loans [Member] | Home Equity [Member] | Non-Covered TDRs [Member]
Loans Receivable [Line Items]
Number of Loans
Pre-modification Outstanding Recorded Investment
Post-modification Outstanding Recorded Investment
TDRs Occurring During The Period [Member] | Consumer Loans [Member] | Credit Card [Member] | Non-Covered TDRs [Member]
Loans Receivable [Line Items]
Number of Loans
Pre-modification Outstanding Recorded Investment
Post-modification Outstanding Recorded Investment
TDRs Occurring During The Period [Member] | Consumer Loans [Member] | Consumer - Other [Member] | Non-Covered TDRs [Member]
Loans Receivable [Line Items]
Number of Loans	1
TDRs That Subsequently Defaulted In Past 12 Months [Member]
Loans Receivable [Line Items]
Number of Loans	47	40
Recorded Investment	25,919	23,579
TDRs That Subsequently Defaulted In Past 12 Months [Member] | Residential Mortgage Loans [Member] | Residential - Prime [Member]
Loans Receivable [Line Items]
Number of Loans
Recorded Investment
TDRs That Subsequently Defaulted In Past 12 Months [Member] | Commercial Loans [Member] | Real Estate [Member]
Loans Receivable [Line Items]
Number of Loans	40	36
Recorded Investment	24,053	21,709
TDRs That Subsequently Defaulted In Past 12 Months [Member] | Commercial Loans [Member] | Business [Member]
Loans Receivable [Line Items]
Number of Loans	6	4
Recorded Investment	1,866	1,870
TDRs That Subsequently Defaulted In Past 12 Months [Member] | Consumer Loans [Member] | Indirect Automobile [Member]
Loans Receivable [Line Items]
Number of Loans
Recorded Investment
TDRs That Subsequently Defaulted In Past 12 Months [Member] | Consumer Loans [Member] | Home Equity [Member]
Loans Receivable [Line Items]
Number of Loans
Recorded Investment
TDRs That Subsequently Defaulted In Past 12 Months [Member] | Consumer Loans [Member] | Credit Card [Member]
Loans Receivable [Line Items]
Number of Loans
Recorded Investment
TDRs That Subsequently Defaulted In Past 12 Months [Member] | Consumer Loans [Member] | Consumer - Other [Member]
Loans Receivable [Line Items]
Number of Loans	1